Answer:
Explanation:
To indicate what specific results will support a hypothesis
Rosa made a chart to summarize the characteristics of two types of social behavior. Which headings best complete the chart? X: Herding Y: Cooperative Hunting X: Flocking Y: Migrating X: Cooperative Hunting Y: Herding X: Migrating Y: Flocking
Answer:
Flocking (birds) and cooperative hunting (lions or wolves)
Explanation:
In large animal groups, social behavior enables to obtain an evolutionary advantage over non-social species by making decisions that are likely to be beneficial for the group. In humans, a comprehensive understanding of these benefits has shown to be useful in different areas ranging from social to economic systems.
Cooperative Hunting is a social behavior that enables predatory social species like lions to hunt larger organisms, thereby improving the adaptive fitness of individuals.
Bird flocking is another type of social behavior in which a group of bird is in flight. This behavior is shared by very different species such as insects and fish. Flocking has shown to be beneficial to individual birds to take care of predators and to find food.
Answer:
A.
Explanation:
What would be an appropriate evolutionary explanation of the fact that the ordering of some homeotic genes (e.g., Hox genes) on vertebrate chromosomes parallels the ordering of homeotic genes on fruit fly chromosomes? Group of answer choices
Answer:
The correct answer is "The similar ordering of homeotic genes in animals, both vertebrate and insect, is due to ancient homology".
Explanation:
The missing options of this question are
a. Homeotic genes show that insects and vertebrates are closer relatives than the traditional classification system indicates.
b. The similar ordering of homeotic genes in animals, both vertebrate and insect, is due to ancient homology.
c. The similarity is a coincidence, not documented in other invertebrates and largely a result of random mutations.
d. Homeotic genes of different animal lineages might be ordered in a similar fashion, yet their sequences are completely different.
The correct answer is option b. "The similar ordering of homeotic genes in animals, both vertebrate and insect, is due to ancient homology".
Ancient homology, is a concept proposed by Charles Darwin that explains that species have homologous structures because they share a common ancestor. This explains as well why the ordering of some homeotic genes on vertebrate chromosomes parallels the ordering of homeotic genes on fruit fly chromosomes. Even though vertebrates are not as evolutionary close to fruit fly as other species, they share an ancient common ancestor as well. This same phenomena explains other homologies seeing in species, such as the adaptive mimetic diversity across butterflies.
explain why dentritivores, decomposers, and omnivores are not assigned trophic levels
Answer:
Because they can function in any of the defined trophic levels
Explanation:
A trophic level refers to the steps of a food chain in an ecosystem. Each trophic level consists of different organisms depending on what they feed on. The first trophic level of every food chain contains the PRODUCER, which starts the food chain by making its own food via photosynthesis. The second trophic level consists of organisms called PRIMARY CONSUMER, which are herbivores that feed on the plants. The third trophic level consists SECONDARY CONSUMER, which are carnivores that feed on the primary consumer. Another carnivore called TERTIARY CONSUMER that feeds on the secondary consumer occupies the fourth trophic level.
Detritivores and decomposers are set of organisms that feed on dead matter, helping in their breakdown. Omnivores are organisms that can feed on both plants and animals. Hence, due to this unique characteristics possessed by these set of organisms, they can fit into any of the trophic levels except the first. For example, omnivores can occupy the second, third and fourth trophic levels.
On the other hand, detritivores and decomposers can operate in any trophic level as long as there is a dead matter. Therefore, it is difficult to assign one particular trophic level to these organisms.
If there is a high concentration of reducing sugar, Benedict’s solution will turn _______. A. Green B. Orange C. Red D. Blue
Answer: In lab, we used Benedict's reagent to test for one particular reducing sugar: glucose. Benedict's reagent starts out aqua-blue. As it is heated in the presence of reducing sugars, it turns yellow to orange. The "hotter" the final color of the reagent, the higher the concentration of reducing sugar.
Answer:
B. Orange
Explanation:
It is heated in the presence of reducing sugars, it turns yellow to orange. The hotter the final color of the reagent, the higher the concentration of reducing sugar.
You are growing plants hydroponically (rooted in an aqueous solution rather than soil). The solution for the control group of plants contains normal levels of salts and nutrients, while the solution for the treatment group has a high concentration of large molecular weight solutes that are excluded by roots. You find that the plants in the treatment group are, on average, smaller than those in the control group, but there is no significant difference between the groups in the amount of CO2 being fixed by the average plant. What differences between groups, at the cellular level, would you expect to make an important contribution to the difference in size of the shoots
Answer:
controlled group has higher cell wall extensibility and they grow faster
Explanation:
In the terms of natural selection what is best described of an organism that is fit
Answer: An organism that is fit would be a parent that can pass off offspring to its children and do it better than other/competing organisms that try to do the same.
As you learned in the video, non-human primates have light skin covered with fur; biologists hypothesize that the ancestors that humans share with other primates also had light skin colored with fur. As the human lineage diverged from that of other primates, fur covering most of the body was lost, and skin became darker. Briefly explain why the loss of fur was accompanied by selective pressure favoring darker skin in early humans.
Answer:
The loss of fur is a protection mechanism for the epithelium that covers us, over the years this method of protection was replaced by the protection provided by melanocytes with their melanin, therefore people who had a low presence of melanin could not survive in the evolution.
Explanation:
The presence of melanocytes and melanin in the skin is what protects it against ultraviolet radiation, over time the human being was affected by solar radiation, thus being one of the causes of bipedalism.
In those humans where melanin is defective or a small number of melanocytes are more predisposed to suffer epithelial pathologies today.
Human evolution then led to hair loss and increased epithelial tonality, causing those who could not have this phenotypic quality to be extinct or deceased.
Colistin is an antibiotic used to treat infections in the bloodstream. Some bacteria are resistant to Colistin. Explain how these bacteria have become resistant to Colistin.
Explanation:
related to chromosomal mutations.
Colistin is a polymyxin antibiotic which is used to treat bacterial infections that is caused by susceptible Gram negative bacteria. Bacteria have become resistant to Colistin through mutations and gene modifications.
What is Colistin?Colistin is also known as polymyxin E. It is an antibiotic medication which is used as a last-resort treatment for the multidrug resistant gram-negative infections including pneumonia.
Resistance to colistin drug occurs with the lipopolysaccharides (LPS) modification through different routes. The most common strategies for resistance to colistin are modifications of the bacterial species outer membrane through the alteration of the LPS and the reduction in its negative charge. The other strategy is the over-expression of the efflux-pump systems.
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Which of the following is a known limiting factor for good nutrition
Answer:
seems you forgot the "followings" but here are some known limiting factors
Explanation:
Exercise,Physiology, Mindset, Nutrition and Genetics.
Which would prevent a plant from growing?
O A. No supply of lithium
B. Too many monosaccharides
c. Too much water
D. Lack of sunlight
SUBMIT
Answer:
D. Sunlight
Explanation:
Since photosynthesis provides the energy the plant needs for growth, lack of light will stunt the plant's growth.
Answer:
D. Lack of Sunlight
Explanation:
Just got the question right on the quiz hope this helps! <3
What is the term for a molecule that combines with enzymes ,undergoes a chemical reaction ,and changes into new substance?
Answer:
substrate
Explanation:
A substrate is the term for a molecule which combines with enzymes when acted upon and changes into a new substance.
Answer:
Substrate
Explanation:
Why does Illinois have more nuclear reactors than other states?
Answer:
due to contamination and facility degradation.
It is ture that Illinois leads the nation in nuclear power generation, producing almost 50 per sent of the state’s electricity and about 1/8 of the nations nuclear power generation
As well as In 2019, Illinois generated the most electricity from nuclear energy, and the state's six nuclear plants accounted for 12% of U.S. nuclear power net generation
Plato , help please , 20 points alsooo!
Each trait of a plant is determined by _____.
A) an allele
B) one gene
C) a pair of genes
D) one dominant gene
Answer:
c. a pair of genes
Explanation:
Answer:
C) a pair of genes
Explanation:
C should be correct because each trait is controlled my multiple genes. It is very rare to see one thing being controlled strictly by one gene, rather multiple things work together to produce the traits. Living things are very amazing if you dive deep into their DNA level,
Which statement correctly describes glucose (CGH120.?
It is made of matter and contains twenty-four molecules.
It is an element made of three types of atoms.
It is an atom made up of carbon, hydrogen, and oxygen.
It is a compound made of twenty-four total atoms of three different elements
Answer:
It is made of matter and contains twenty-four molecules.
the “good genes hypothesis” proposes that people with physical qualities like averageness, symmetry, sex prototypicality, and youthfulness are more attractive because they are better-quality mates. the “good genes hypothesis” is from which approach to psychology?: 1) evolutionary 2) psychodynamic 3) cognitive 4) biological
The correct answer is 1) Evolutionary
Explanation:
The "good genes hypothesis" argues traits of the opposite sex that are considered as positive or attractive reflect evolutionary traits and therefore are indicators of a better-quality mate. Indeed, this theory argues attraction is connected to better chances of survival or better chances to reproduce. This belongs to the evolutionary approach in psychology because these "attractive" traits are the result of evolution because only the "fittest" individuals reproduce and their genes prevail over time.
What does not produce carbon dioxide?
A. Photosynthesis
B. Burning fossil fuels
C. Animal respiration
D. Plants decaying
Answer:
A.Photosynthesis
Explanation:
Because,it's main function is to produce Oxygen and Glucose by taking in CO2 instead of giving out...with H2O..
The answer is photosynthesis
- Burning of fossil fuels(these are the bones/particles of animals that have died thousands of years ago). When these fossil fuels are burned they lead to the production of carbon dioxide.
- Animal respiration- the cells in the body of animals helps in the production of carbon dioxide which is released into the atmosphere
- Plants decaying- when plants wither off due to lack of nutrients, they decay with time and then produce carbon dioxide.
- Photosynthesis- the end product of photosynthesis is glucose.
Hence the answer is photosynthesis
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Consider a gene with three alleles controlling coloration of a flowering plant. There are 3 possible phenotypes, corresponding to the following dominance hierarchy among the alleles: A1 is dominant to A2 and A3, and A2 is dominant to A3. Which of the following genotype pairs express the same phenotype?
A.
A2A2, A3A3
B.
A1A1, A3A3
C.
A1A2, A1A3
D.
A2A3, A1A3
Answer:
C. A1A2, A1A3
Explanation:
This question depicts a gene coding for coloration in a flowering plant. The gene is controlled by multiple alleles, three specifically. The alleles are labelled A1, A2, and A3, with each coding for it's own respective trait.
According to the question, A1 is dominant over A2 and A3 i.e. A1 will always mask the phenotypic expression of A2 and A3 and express itself. Also, A2 is dominant over A3 i.e. A2 will always mask the phenotypic expression of A3. This overall means that the trait encoded by allele A3 will only be expressed when the same alleles are present.
To the question; since A1 is dominant over the other two alleles (A2 and A3), it will be phenotypically expressed ahead of them in a heterozygous state with both alleles. That is, A1A2 genotype will give rise to a phenotype encoded by A1. Also, A1A3 will produce a phenotype encoded by A1. Hence, genotypes A1A2 and A1A3 will express the same phenotypes.
A2A2 and A3A3 will express different phenotypes since they are both in a same alleles condition. Likewise for A1A1 and A3A3. A2A3 and A1A3 genotypes will express different phenotypes encoded by A2 and A1 respectively since they are both dominant over A3.
Which of these is an organism?
Answer:
A wolf...........
.......................
Answer:
I believe the answer is heart
Type the correct answer in the box. Spell all words correctly.
Annette is a lab officer who processes DNA evidence and interprets injuries. Which type of certification qualifies her to do these tasks?
Annette is a(n) ________
, who may be called upon to utilize medical expertise to interpret a crime scene, process DNA evidence, and identity and interpret injuries.
Answer:
Annette is a CERTIFIED FORENSIC NURSE.
Explanation:
Certified forensic nurse is a certificate given to a registered nurse after undergoing a certification program which help the forensic scientist to gain more knowledge and credibility in their field of work. A certified forensic nurse is a registered nurse that processes DNA evidence and interprets injuries for violent causes or in a crime scene. Annette is a certified forensic nurse is may be call upon to utilize medical expertise to interprete a crime scene, process DNA evidence, identify and interprete injuries.
Answer:
I'm taking the test now, the correct answer is Certified Medical Investigator
Explanation:
I tried the Nurse one it was wrong
which is a negative effect of rising ocean temperatures
Answer:
See below
Explanation:
Icebergs melting, so sea levels rise and floods can occur also polar bears can die due to lack of icebergs so they won't be able to hunt probably.
Answer:B
Explanation:
The flooding of low-lying coastal areas EDGE
What type of bug is this?
Answer:It looks like a beetle
Explanation:
Match each process to the sphere at most directly involves
Answer:A
Explanation:
Answer and Explanation:
The correct matching would be
(2) Atmosphere- (A) an increase in the level of CO₂ around the earth leads to climate change
(1) Hydrosphere- (B) the depth of an ocean increase as glaciers melt
(3) Geosphere- (C) the height of a mountain increases by 0.4 centimeters each year
(4) Biosphere- (D) infection with a fungal disease decreases the size of a bat colony
The atmosphere, hydrosphere, geosphere, and biosphere are the four major spheres or systems of the earth.
The atmosphere refers to the sum total of gases available on the earth. It makes the blanket of gases around the globe. Thus, an increase in carbon dioxide would come under the atmosphere
Hydrosphere refers to the total amount of water available on the surface of the earth. For example, seas, oceans, rivers, lake, underground water et cetera.
Geo means ground and thus geosphere refers to the total amount of ground, rocks, and minerals present on the earth. Thus, the increase in height of a mountain comes under the geosphere.
Biosphere refers to any space on earth which is occupied by any living organism (animals, plants, birds, microorganisms et cetera)
4. Why might a physician order a test in the spine to diagnose a problem in the head?
I
Answer:
if you have headaches or migraines, your doctor may use a spinal tap to look for signs of infection, bleeding in the brain, to measure the pressure around your brain, or other things that could be causing your pain
Explanation:
1 point
The topsoil covering an area of land was washed away by
rain. The land was most likely-
O steep, without vegetation
O steep, with vegetation
O flat, without vegetation
O flat, with vegetation
1 point
Answer:
steep, without vegetation
what does the term allele frequency refer to in population genetics?
Answer:
Allele frequencies refer to a decimal, a percentage, or a fraction, because allele frequencies is the total number of copies of all the alleles at the particular genetic locus in the population.
Explanation:
The proportion of a particular allele among all the alleles for a given gene
The receptive field of this type of cell in the striate cortex is made up of a large number of receptive fields from neurons in the LGN. Additionally, these cells respond to light at specific orientations and locations, and thus are best in responding to things such as lines and edges.
A. Complex
B. Ganglion
C. Bipolar
D. Simple
Answer:
Simple cell
Explanation:
Simple cells are found in primary visual cortex and are made up of large number of receptive fields from neurons and the respond to light at specific Orientation and oriented edges. The cells were discovered by Torsten Wiesel and David Hubel in the late 1950s. The simple cells respond to stimuli with some particular orientations to objects within their receptive fields. Receptive fields comprises of sensory receptors in the sensory neurons that draw out neurosonal responses when there are stimulated
What is the basic unit of structure and function of all living organisms?
mitochondrion
DNA
nucleus
cell
answer:
the answer is d. (cells)
g A variable trait in corn is the presence or absence of knobs at particular sites on some chromosomes. The allele present on each chromosome determines whether or not that chromosome has a knob. Suppose that one member of each of two pairs of homologs in a corn plant has a knob. If this plant is crossed with a knobless plant, what percentage of the offspring is expected to have only knobless chromosomes
Answer:
50%
Explanation:
The allele present on each chromosome determines whether or not that chromosome has a knob. Suppose that one member of each of two pairs of homologs in a corn plant has a knob.
This means that on a chromosome with two chromatids, the allele present on one chromatid causes the chromatid to possess knob while the other does not making the plant an heterozygous...
If this plant is crossed with a knobless plant, one whose Chromebook is without knobs, we have
II x II
II - 50% with a knobbed chromatid
II - 50% with only knobless chromosomes.
The first to the left is knobbed, thus the percentage of offspring expected to have only knobless chromosomes would be 50%.
Assuming a diallelic gene and complete dominance, the percentage of the offspring that is expected to have only knobless chromosomes is 50%
----------------------------
Available data:
Trait presence absence of knobsPlant 1: One member of each of two pairs of homologs in a corn plant has a knobPlant 2: knobless plantWe will assume complete dominance, and that the presence of knobs is the dominant trait.
We will name the dominant allele A, and the recessive allele a.
Plant 1 seems to be heter0zyg0us for the trait, while plant 2 is h0m0zyg0us.
Cross: Plant 1 with Plant 2
Parentals) Aa x aa
Gametes) A a a a
Punnett square) A a
a Aa aa
a Aa aa
F1) 50% of the progeny is expected to be heter0zyg0us, Aa, expressing knobs
50% of the progeny is expected to be h0m0zyg0us recessive, aa, having knobless chromosomes.
The percentage of the offspring that is expected to have only knobless chromosomes is 50%.
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The brown-eye allele is dominant over blue-eye allele. A couple currently has 3 children with brown eyes. What is the probability that their next baby will have blue eyes if both parents are heterozygous for eye color
Answer:
The correct answer is: 25 %
Explanation:
According to Mandel's law of inheritance, the dominant allele masks the expression of the recessive allele if present together. If a couple has 3 children with brown eyes. In a monohybrid cross, the ideal phenotypic ratio of the offsprings is 3: 1 or in other words, the dominant character chances to appear is 75% in phenotype.
So, by the law of dominance of monohybrid cross the chances of the fourth child to develop blue eyes is 25%.
Thus, the correct answer is : 25 %.
