2. What changed in skull anatomy that occurred from the dawn horse to the
modern horse?
Increase in the size of the skull
O Decrease in the size of the skull
Nothing
3. What change occurred in leg anatomy that occurred from the dawn horse
to the modern horse?
O Size of leg
O Toe structure - started as 4 toe bones, now is one toe bone
OBoth of these
Answers
From the dawn horse to the modern horse, the following changes occurred:
2. Increase in the size of the skull.
3. Size of the leg.
Toe structure - started as four toe bones, now is one toe bone.
The correct answer is Both of these.
What evolutionary changes occurred in the dawn horse to give the modern-day horse?The evolutionary changes that occurred in the dawn horse to give the modern-day horse gradually over millions of years were driven by natural selection and adaptations to changing environments.
These changes include:
Increase in Body SizeLimb AdaptationsDental AdaptationsLengthening of LimbsStrengthening of Ligaments and MusclesDevelopment of a Single Toed FootLearn more about modern-day horse at: https://brainly.com/question/688848
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Related Questions
How are organisms in the domain bacteria and archaea similar ?
Answers
1. Prokaryotic Cells: Both Bacteria and Archaea are made up of prokaryotic cells, which are cells that lack a true nucleus and membrane-bound organelles.
2. Small Size: Both domains are made up of relatively small cells, with most species being only a few micrometers in size.
3. Abundant: Both domains are incredibly abundant and can be found in a wide range of environments, including soil, water, and inside other organisms.
4. Shape: Both domains exhibit a wide range of shapes, including spheres, rods, and spirals.
5. Reproduction: Both domains reproduce asexually, through processes such as binary fission or budding.
6. DNA: Both domains have circular DNA molecules and lack histones, which are proteins that help package DNA in eukaryotic cells.
7. Metabolic Diversity: Both domains can be metabolically diverse, with species that can use a wide range of energy sources, including light, organic compounds, and inorganic chemicals.
Overall, while Bacteria and Archaea share many similarities, they are also distinct from each other in several key ways, including differences in cell wall composition, DNA replication, and transcription.
Which organisms undergo photosynthesis? Illustration of a reproductive structure produced by some fungi. Photograph of a round orange-colored fruit that grows on a tree. It has dark spots on its orange peel. Photograph of living things that grow from the soil. Photograph of a star fish, represented as a marine invertebrate with spiny skin and five arms surrounding a central disk-shaped body resting on coral reef in deep water. Close-up view of a palm tree with a single straight trunk having a large, nut-like fruit on it.
Answers
Organisms that undergo photosynthesis are typically autotrophic, meaning they can produce their own food using energy from sunlight. This includes plants, algae, and some types of bacteria.
A reproductive structure produced by some fungi is a mushroom. Mushrooms are the fruiting bodies of fungi, and they produce spores for reproduction. The cap of the mushroom is often the most noticeable part, and it can have a wide range of colors and shapes.
The round orange-colored fruit that grows on a tree and has dark spots on its peel is likely an orange. Oranges are a type of citrus fruit that grow on trees in warm climates. They are a good source of vitamin C and are commonly eaten as a snack or used in cooking and baking.
Living things that grow from the soil can include a wide range of organisms, such as plants, fungi, and bacteria. It's difficult to say exactly what is being referred to without more information or a specific image.
A starfish, also known as a sea star, is a marine invertebrate with spiny skin and five arms surrounding a central disk-shaped body. They are found in a variety of ocean habitats and are known for their ability to regenerate lost limbs.
The large, nut-like fruit on a palm tree is likely a coconut. Coconuts grow on palm trees and are a common source of food and drink in many tropical regions. They are also used in a variety of products, such as coconut oil and coconut milk.
Use the digestive system as an example of all tissue types in a single organ system and discuss how all tissues are involved.
Answers
The various tissues in the digestive system such as the mucosa, submucosa, serosa epithelium, etc, all function together in the digestion of food.
What is the digestive system?The digestive system is a complex physiological system responsible for the breakdown and absorption of food, as well as the elimination of waste materials from the body.
It includes a series of organs and structures that work together to process food and extract nutrients for energy, growth, and repair.
The primary organs of the digestive system include the mouth, esophagus, stomach, small intestine, large intestine (colon), rectum, and anus.
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If an enzyme could not break
down hydrogen peroxide in a
cell, the levels would become —-?
and result in cell death.
More basic
Too diluted
Too toxic
Non-nutritive
Answers
The addition of hydrogen peroxide in the cell breaks down the enzymes and causes cell death. The fact that hydrogen peroxide (H2O2) is stable in abiotic environments at room temperature and has a neutral pH makes it stand out from other general toxins. However, it kills cells quickly by producing highly reactive hydroxyl radicals.
Hydrogen peroxide is a byproduct of metabolism that can cause harmful effects. It can fall to pieces to yield hydroxyl extremists that assault significant biochemicals like proteins and DNA. It is also used for catalase tests in bacterial cultures.
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Most highly intelligent mammals are
A. whales
B. dolphins
C. elephants
D. elephants
Answers
Answer: D. elephants
Explanation:
If 73% of a population's gene pool is made up of the dominant allele, what percent of the population is homozygous dominant?
Answers
Let $p$ represent the frequency of the dominant allele and $q$ represent the frequency of the recessive allele. According to the Hardy-Weinberg principle, $p+q=1$.
We know that $p=0.73$, so we can solve for $q$:
\begin{align*}
p+q &=1 \\
q &=1-p \\
q &=1-0.73 \\
q &=0.27
\end{align*}
Now we can use the Hardy-Weinberg equation to determine the frequency of homozygous dominant individuals in the population:
\begin{align*}
p^2 + 2pq + q^2 &= 1 \\
p^2 &= (0.73)^2 \\
p^2 &= 0.5329 \\
\end{align*}
Therefore, the frequency of homozygous dominant individuals in the population is $p^2 = 0.5329$, or approximately $53 \%$.
So, about $53 \%$ of the population is homozygous dominant.
We have been thinking about two claims that are possible explanations for how the channel on Mars was formed. We have considered evidence from images, as well as from the Flowing Water Model and the Flowing Lava Model.
1. Select the claim you think is best supported by the evidence you have seen so far.
Responses
Claim 1 Flowing water formed the channel on mars.
Claim 2 Flowinglava formed the channel on mars.
Why do you think the claim you selected is best supported by the evidence?
Answers
Based on the evidence provided by images, the Flowing Water Model, and the Flowing Lava Model, it is important to note that I don't have access to specific evidence or the ability to analyze images. However, I can provide a general perspective on how to evaluate the claims based on evidence.
If the evidence from images shows features consistent with erosion patterns typically associated with water flow, such as meandering channels, sediment deposits, or evidence of water-related processes, then Claim 1, stating that flowing water formed the channel on Mars, maybe better supported.
On the other hand, if the evidence indicates features resembling lava flows, such as volcanic features, basaltic rock formations, or characteristics commonly associated with volcanic activity, then Claim 2, suggesting that flowing lava formed the channel on Mars, could be better supported.
To determine which claim is best supported, it is crucial to carefully analyze the evidence, considering factors such as the morphology of the channel, the presence of specific minerals or geological features, and any other relevant observations that align with known processes of water or lava flow.
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Can someone write this but on different words pleaseeeee?
One part of the experiment that I think was essential for getting good results was the table graph of how many eggs had hatched and what pH level they hatched in.
Because as the pH levels were rising and more eggs started hatching, it showed a consistent patter that helped me come to the conclusion that when eggs were placed in water with a neutral pH balance, they were more likely to hatch and they couldn't hatch in acidic water. The overall design of the lab was helpful to help me farther understand the concept of acid rain and water and why it's bad for our environment.
Answers
Answer:
The inclusion of a table graph depicting the number of hatched eggs at various pH levels played a crucial role in obtaining favorable outcomes in the experiment. The graph demonstrated a consistent pattern as the pH levels increased, indicating a correlation between a neutral pH and increased hatching rates, while acidic water hindered hatching. The comprehensive laboratory setup aided my comprehension of the detrimental effects of acid rain on the environment and the significance of water quality.
(Chat GPT is free to use, and great for this kind of thing! Just ask it to rephrase the writing. Good luck!)
Which region of the brain exhibits somatotopy?
A) primary somatosensory cortex
B) limbic system
C) hypothalamus
D) Broca's area
Answers
Answer:
A) primary somatosensory cortex exhibits somatotopy.
Somatotopy refers to the organization of the primary somatosensory cortex (located in the parietal lobe of the brain) in which it is mapped out according to the different areas of the body. Every part of the somatosensory cortex corresponds to a specific part of the body. This means that when a particular region of the body is stimulated (e.g. through touch), the corresponding region of the brain is also stimulated, which allows the brain to perceive the location and nature of the stimulus. This topographical organization of the brain is important in processing and integrating sensory information, and it is essential for motor planning, movement, and sensory perception.
The three hormones that influence testosterone production are GRH, FSH, and LH. true or false
Answers
Answer:
True
Explanation:
The leydig cells produce testosterone
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What type of sentence is turn left after u cross the bridge
Answers
Answer: OUTRO
Explanation:
Do you believe there is a need in the United States to develop a comprehensive and integrated mass transit system over the next 20 years, including an efficient rapid-rail network for travel within and between its major cities? How would this impact you personally?
Answers
Yes, there is a need to develop a comprehensive and integrated mass transit system in the United States that includes an efficient rapid-rail network for travel within and between its major cities over the next 20 years.
This is due to several reasons. Firstly, a robust mass transit system will reduce the number of cars on the road, leading to less traffic congestion, lower levels of pollution, and a cleaner environment. Secondly, it will make public transportation more accessible, convenient, and affordable for commuters, especially for those who live in rural areas or have limited mobility options. Additionally, it will create more jobs and boost economic growth by improving connectivity and facilitating trade. In conclusion, an integrated and comprehensive mass transit system is essential for the United States to meet the needs of its growing population, reduce the negative impacts of climate change, and strengthen its economy. Personally, this would impact me positively by providing me with more sustainable and affordable transportation options.For more questions on United States
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When do some cells undergo programmed death? O When they are diseased. O When they are differentiating. O When they are healthy. O When they are dividing.
Answers
Which solid part of the Earth is made up of the crust and the rigid upper part of the mantle?
Answers
5. Suppose that every year, one half of the population has two offspring per
person, and the other half has none. If all members of the population die after a
year, what is the resulting growth rate? Explain your answer.
Answers
The resulting growth rate of the population in this scenario would be a net growth rate of one offspring per person per year.
This is because, on average, half of the population will have two offspring per year while the other half will have none. To break it down further, let's assume that there are 100 people in the population. In one year, 50 of them will have two offspring each, resulting in a total of 100 new offspring. The other 50 people will not have any offspring. Therefore, the net growth rate is 100 new offspring divided by 100 people, which equals one new offspring per person. It is important to note that this scenario assumes a perfect balance between the two groups of the population. In reality, there are many factors that can influence reproductive rates, including age, health, access to resources, and cultural norms. Additionally, this scenario does not take into account any deaths or migration, which could impact the overall growth rate of the population. Overall, this scenario demonstrates the concept of replacement-level fertility, where each person is replaced by two offspring. However, it is important to consider the many complex factors that can influence population growth rates in real-world situations.
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One of the challenges facing the world today is supplying enough food for the human population. Farming with genetically modified plants is a possible solution to this challenge. What is a concern with using GM plants?
A. Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.
B. Farming with GM plants requires less land and energy, which may lead to lower food costs and an economic crisis for farmers.
C. GM plants require more insecticide use, which may increase the chance of chemical residues in the food supply.
D. Scientific studies on GM plants are not available so the effects of GM plants are unknown.
Answers
Answer:
Option A
Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.
write a paragraph explaining an of directional selection 
Answers
Answer:
Explanation:
Directional selection occurs when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other. It has been demonstrated many times in natural populations, using both observational and experimental approaches.
SOMEONE PLEASE
Scientists are optimistic about the use of gene therapy to treat genetic disorders, such as cystic fibrosis. If gene therapy is as successful as possible, what is its expected action and benefit for the patient?
A. Gene therapy introduces a new gene to the patient and temporarily improves the symptoms of the disorder.
B. Gene therapy deactivates the defective gene and permanently improves the symptoms of the disorder.
C. Gene therapy removes the defective gene and permanently improves the symptoms of the disorder.
D. Gene therapy replaces the defective gene and cures the patient of the disorder.
Answers
Answer:
D. Gene therapy replaces the defective gene and cures the patient of the disorder.
Explanation:
three ways in which geographical location of people through hampers media provide them with information timeously.
Answers
The three ways are;
Limited InfrastructureTime Zone DifferencesLanguage and Cultural BarrierWhat are the three ways?There may not be adequate infrastructure, such as dependable internet connectivity, television networks, or print media distribution routes, in some distant or impoverished places.
Time zone differences can also be significantly influenced by geography. Receiving current news can be delayed if media outlets or news sources are based predominantly in another time zone.
Media content may need to be translated or adjusted for different audiences in regions with a variety of languages or cultural backgrounds.
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The color of four stars is shown in the table below.
Color of Stars
Star | Color
W Yellow
X White
Y Blue
Z Orange
What is the correct order of the surface temperature of the stars, starting from the highest to the lowest?
A) Y,Z,W,X
B) X,W,Z,Y
C) Y,X,W,Z
D) Z,W,X,Y
Answers
Answer:
the answer is A
Explanation:
3. The principles of probability can be used to
a. predict the traits of the off spring of genetic crosses.
b. determine the actual outcomes of genetic crosses.
c. determine which species should be used in genetic crosses.
d. decide which organisms are best to use in genetic crosses.
Answers
Answer:
(A) predict the traits of the offspring of genetic crosses
Explanation:
In sexual reproduction, gametes containing parental DNA fuse to create an offspring. The fusion of gametes is random, so the outcomes of sexual reproduction are governed by chance
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Will the trend toward an increased incidence of tusklessness in a population with heavy poaching lead to increased African elephant population sizes in the future?
Answers
No, the trend toward increased tusklessness in African elephants due to heavy poaching is not likely to lead to increased population sizes in the future.
While tuskless elephants may have a survival advantage in areas with high levels of poaching, this advantage is likely to be temporary. Over the long term, tusklessness may lead to reduced genetic diversity and reproductive success, as tusks play a role in mate selection and competition among males.
Additionally, tuskless elephants may be less able to defend themselves and their young against predators and may have a reduced ability to forage for food. Thus, while tusklessness may confer some immediate benefits in areas with high levels of poaching, it is not a viable long-term solution for elephant populations.
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In a woodland, the bark on most of the trees was dark gray. Over time, a population of moths that lived in the woodland gradually changed from light gray to dark gray.
Which ,begin emphasis,best,end emphasis, describes how this change in the moth population was the result of natural selection?
Answers
In the given scenario, where the bark on most trees in a woodland was dark gray, and the population of moths that lived in the woodland gradually changed from light gray to dark gray over time, natural selection best explains how this change in the moth population was the result of natural selection.
Natural selection is the mechanism of evolution where the traits that help organisms survive and reproduce become more common in a population over time. The best explanation of how this change in the moth population was the result of natural selection is provided as follows: Initially, the moth population was light gray, and the tree bark was dark gray.
This meant that the light gray moths were easily seen by predators on the dark gray bark, whereas the dark gray moths could blend in with the dark bark, making them difficult to see by predators. As a result, the light gray moths were more vulnerable to predation, whereas the dark gray moths had better survival rates.
This difference in survival rates led to a higher proportion of dark gray moths in the population over time. This change in the moth population from light gray to dark gray was due to natural selection because it involved the differential survival and reproduction of individuals with certain traits.
The dark gray moths had a higher fitness (i.e., ability to survive and reproduce) than the light gray moths, and this led to the gradual increase in the frequency of the dark gray trait in the population. Therefore, this scenario is a classic example of how natural selection can lead to the evolution of populations over time.
In conclusion, the change in the moth population from light gray to dark gray in the woodland was the result of natural selection because it involved the differential survival and reproduction of individuals with certain traits. The dark gray moths had a higher fitness than the light gray moths, and this led to the gradual increase in the frequency of the dark gray trait in the population over time.
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what might happen if all carnivores disappeared
Answers
Answer:
the population of herbivores, will increase
Explanation:
If all the carnivores are removed from the earth, the population of herbivores, will increase. Large population of herbivores will overgraze. As a result, all plants will disappear from the earth surface and ultimately the earth may become a desert.
Answer:
Below
Explanation:
There will be a dramatic increase in the population of primary consumers (herbivores), because there would be no predators that could hunt them. And we must keep in mind that removing atleast one species from an ecosystem can cause an imbalance and the ripple effect will bring nothing good.
In a nutshell, there would be too many herbivores on the planet.
Do you think the northwest or northeast United States receives greater precipitation throughout the year? Justify your answer.
Answers
Answer:
the northwest receives more precipitation throughout the year
Explanation:
Earth takes in thermal energy from the Sun in a process called what
Answers
answer: thermal radiation
If ______________ area is damaged, then this can lead to ____________ aphasia, which is characterized by difficulty speaking.
Broca's; fluent
Broca's; non-fluent
Wernicke's; non-fluent
Wernicke's; fluent
Answers
If Broca's area is damaged, then this can lead to non-fluent aphasia, which is characterized by difficulty speaking, option B is correct.
Broca's area is a region in the frontal lobe of the brain that plays a critical role in speech production. When this area is damaged, a person may struggle to form words and sentences, leading to non-fluent aphasia. Non-fluent aphasia is also known as Broca's aphasia, expressive aphasia, or motor aphasia.
Individuals with Broca's aphasia may understand language well but have difficulty expressing themselves through speech or writing. They may speak in short, choppy phrases or use a limited vocabulary. They may also struggle with grammatical structure and word order. In some cases, they may experience difficulty with reading and writing as well, option B is correct.
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The correct question is:
If ______________ area is damaged, then this can lead to ____________ aphasia, which is characterized by difficulty speaking.
A) Broca's; fluent
B) Broca's; non-fluent
C) Wernicke's; non-fluent
D) Wernicke's; fluent
What happens in the stomach?  A. Water and nutrients are absorbed.  B. Waste material is expelled from the body.
Answers
Answer:
Find an answer choice similar to this:
Food is broken down into smaller components (digested) to send to the small intestine.
Explanation:
The other two choices I can see are the functions of the large intestine. The large intestine absorbs water and nutrients and eliminates waste material (the body expels waste through the rectum and anus).
Doing The Activity Make a list of activities that take place on brest land,like hiking, fishing, hunting, eading, taking pictures, camping, rock limbing, skiing, snow- mobiling, logging, razing, or mining. Think about how any of mese activities would conflict with each other done on the same piece of land. Discuss these questions: Which activities ould cost the most to provide on forest land? Which would bring the most visitors? Which activities would cost the most to provide on forest land Which would have the greatest impact on the forest ecosystem? On the wildlife there? Would this effect be permanent or temporary? Which would cause fragmentation? Which would provide for society's most critical needs?
Answers
Activities that take place on forest land can vary greatly and may include hiking, fishing, hunting, reading, taking pictures, camping, rock climbing, skiing, snowmobiling, logging, grazing, or mining. Here's a discussion of the questions you raised:
1. Cost to provide on forest land: Activities like logging, mining, and skiing/snowmobiling typically require infrastructure development, equipment, maintenance, and personnel, making them relatively expensive to provide on forest land.
2. Attracting visitors: Hiking, camping, fishing, and wildlife viewing tend to attract a significant number of visitors due to their accessibility, affordability, and recreational appeal.
3. Impact on forest ecosystem and wildlife: Logging, mining, and grazing have the greatest impact on the forest ecosystem. Logging involves the removal of trees, potentially altering the forest structure and disrupting habitats. Mining can lead to soil erosion, habitat destruction, and water pollution. Grazing by livestock can degrade vegetation and impact native wildlife habitats.
4. Duration of the impact: The impact of activities like logging, mining, and grazing can have long-term or even permanent effects on the forest ecosystem, particularly if they are not carried out sustainably or with proper mitigation measures.
5. Fragmentation: Activities like logging and mining can cause fragmentation by creating clearings or dividing the land into smaller patches. This fragmentation can disrupt wildlife movement, alter ecological connectivity, and reduce biodiversity.
6. Meeting critical societal needs: While activities like logging and mining may provide resources and contribute to economic needs, activities such as hiking, fishing, and wildlife conservation fulfill critical societal needs related to recreation, nature appreciation, and environmental conservation.
It's important to consider a balanced approach to land use planning and management, taking into account the diverse interests and impacts associated with various activities. This involves considering sustainable practices, mitigating negative impacts, and protecting the long-term health and integrity of forest ecosystems and wildlife populations.
How come a person can only increase his/her oxygen levels in the body by only three to five percent when hyperventilating?
Answers
Answer:
Hyperventilating can only increase a person's oxygen levels in the body by only three to five percent because the body has a natural mechanism to regulate the levels of oxygen and carbon dioxide in the blood. When a person hyperventilates, they exhale more carbon dioxide than they inhale, which leads to a decrease in carbon dioxide in the blood. This decrease in carbon dioxide causes the blood vessels to constrict, which reduces the amount of oxygen that can be delivered to the body's tissues. This is why hyperventilating can only increase a person's oxygen levels in the body by a small amount.
