Answer:
True
Explanation:
follicle stimulating hormone (FSH) which is produced by the pituitary gland stimulates the testis to produce sex hormone.
In a lake with three trophic levels (non-native fish, zooplankton, algae), an algal bloom occurs when the small population of zooplankton declines due to the predation of the invasive fish. Which of the following describes why zooplankton are the keystone species in this scenario?
Zooplankton are the smallest of all the herbivorous marine mammals in their communities.
The small population of zooplankton have an unequal effect on the marine community.
Marine mammals depend upon the work of zooplankton to convert sunlight into food.
Zooplankton help other populations survive by keeping out other herbivores.
Answer:
Zooplankton help other populations survive by keeping out other herbivores
Explanation:
This is because a keystone species are species that have large effect on the the habitat and through its effect they help to keep the ecosystem in existence. They make sure that the ecosystem exist. They help populations survive by keeping out herbivores and feeding on the algae. They help drive nutrients cycle and transfer energy from algae to invasive fish.
How can Fungus effect Bacteria?
Answer:
i belive so!
what are milk dairy products meat and beans high in?
Explanation:
Not only are dairy foods like milk, cheese, and yogurt excellent sources of protein, but they also contain valuable calcium, and many are fortified with vitamin D.Answer:
proteins mostly , calcium and also vitamin D
Last Saturday my game was rained out. This is an example of what affecting your life?
A) Climate
B) Ozone
C) Weather
D) Temperature
Answer:
A
Explanation:
It is A because rain is a type of weather and because it rained you couldn't go to your game.
hope this helped :))))
Answer:
c. weather.
Explanation:
the rainy weather ruined your day.
The big bang theory suggests that the universe is distance is about?
Answer:
It says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today.
Explanation:
The chemical which carries oxygen in the red blood cells is called
Answer: Hemoglobin
Explanation:
PlS HELP!
What does an author give texture, sound, and motivation to in order to bring it to life?
dialogue
setting
character
perspective
A strand of mRNA that is 450 nitrogenous bases long will produce a protein containing approximately
Answer:
approximately 150 amino acids
Explanation:
Proteins are produced from genes via a process called gene expression. In this process, the gene-containing DNA is first transcribed into mRNA molecule, which is subsequently translated into an amino acid sequence that makes up the protein molecule.
However, during the translation process, the mRNA molecule is read in a group of three nucleotides called CODON i.e. a codon is made up of three nucleotide/nitrogenous bases. Each codon codes for a particular amino acid.
Since one codon of a mRNA that is three (3) nucleotides long codes for one amino acid, hence, strand of mRNA that is 450 nitrogenous bases long will produce a protein containing approximately (450/3) = 150 amino acids.
100 points and Brainliest!!! Plus, an opportunity for an extra 100 points if correct.
Q) In three to five sentences, construct an argument for the claim that natural selection leads to evolution. Provide evidence for this claim, and be sure to explain how an organism shows the four parts of the process of natural selection. You may use any organism with the exception of bacteria and antibiotic resistance.
Answer:
Natural selection leads to evolution due to the way reproduction works. In the example of European moths during the industrial revolution, we can see this clearly. When the industrial revolution was going, there was more pollution, hence darkening the skies and leaving ash. Moths, which before were white with occasional black spots dominated the area until pollution effected their environment. Whiter moths were eaten by bird who could easily see them against the black trees and skies. These moths could no longer reproduce, they were dead. Moths with more black could survive longer to reproduce because they were harder to see. As time went along, the moths turned mostly black, showing an example of evolution.
This method of natural selectionthat the fantastic alleles of this variation organism are surpassed directly to offspring, the system of natural selection results in evolution occurring.
What is natural selection?Natural selection is the system thru which populations of residing organisms adapt and extrade. Individuals in a populace are evidently variable, which means that they're all one of a kind in a few ways.
Natural selection is a mechanism of evolution as there are. Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation. Natural selection is a system in which organisms can be higher tailored to their surroundings will live to tell the tale and reproduce. Darwins theory about the giraffe showing the neck evolution by the natural selection.Read more about the evolution:
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Living organisms are classified into six kingdoms. Which of the following are eukaryotes? (The number of answer are 4 in total)
Answer choices:
Archaebacteria
Eubacteria
Protista
Fungi
Plantae
Animalia
Answer:
These are eukaryotes-
ProtistaFungiPlantaeAnimaliaThese are prokaryotes-
ArchaebacteriaEubacteriaWhich is a primary disturbance?
A: Forest fire
B: Landslide
C: Snow melting
D: Tree falling
Answer:
landslide
Explanation:
Answer: B
Explanation:
Pulmonary veins:
A) split off the pulmonary trunk
B) transport oxygenated blood to the lungs
C) return blood to the right atrium of the heart
D) transport oxygenated blood to the heart
Answer:
D. transports oxygenated blood to the heart
explain how the nervous system is related to the integumentary system. why is this important?
please no links
Explanation:
The autonomic nervous system regulates peripheral blood flow and sweat glands.
Nerves control muscles connected to hair follicles.
The integumentary system reduces water loss, contains receptors that respond to touch, regulates body temperature, and protects the inside of the body from damage.
How many trophic levels do most food webs have? Why? Relate your answer to the appropriate law of thermodynamics
Answer:
Most food webs have between 4 and 5 trophic levels
Explanation:
Energy flow: From the whole quantity of energy that reaches the earth's surface, autotroph organisms or producers only absorb 0.1 or 1%.
From the input of solar energy begins a unidirectional energy flow. It passes through all the organisms in the ecosystem, from autotrophs to heterotrophs, until it is eventually dissipated in the environment.
There is an energy transfer from each trophic level to the next, and each level only uses 10% of this energy. This assessment is called "The 10% rule". As a general rule, only about 10% of the energy stored as biomass at one trophic level, per unit time, ends up as biomass at the next trophic level, in the same unit of time. The rest of the energy is used by the organisms in their own metabolism or dissipated as heat to the environment.
The progressive reduction of energy determines the number of trophic levels, which, in general, turns to be between 4 and 5.
which sequence represents the order of some events in human development?
Why is it commonly believed that carbon dioxide is responsible for global warming?
1.Carbon dioxide levels in the Earth’s atmosphere have been steadily decreasing.
2.Carbon dioxide has a longer average lifetime in the atmosphere.
3.The warming effect associated with carbon dioxide has remained unchanged.
4.Other greenhouse gases amplify the effect of carbon dioxide.
Answer:
2. Carbon dioxide has a longer average lifetime in the atmosphere.
Explanation:
I do not personally believe carbon dioxide is the cause of warming as it takes up less than 1% of the atmosphere but I am giving you this answer because I have seen this question before and this is what the book deemed was the "correct" answer,
can i get 10 fun facts about earth
Answer:
the world has 96.54 percent of water in it
Explanation:
Earth is the third planet from the sun in our solar system. ...
Our amazing planet has been around for quite some time. ...
Like all the planets, Earth orbits (travels around) around the sun. ...
Have you ever wondered why we have different seasons? ...
Not only does Earth zoom through space, it also spins on its axis.
Earth is Almost a Sphere: ...
Earth is Mostly Iron, Oxygen and Silicon: ...
70% of the Earth's Surface is Covered in Water: ...
The Earth's Atmosphere Extends to a Distance of 10,000 km: ...
The Earth's Molten Iron Core Creates a Magnetic Field:
Sweat and skin secretions contain a mixture of molecules that kills or limits the growth of many types of microbes. This control of microbes is an example of
A. a feedback loop to maintain homeostasis
B. a nonspecific defense against infection
C. a specific immune response to infection by microbes
D. an enzyme-catalyzed biochemical reaction
These type of microbes is an example of a specific immune response to infection by microbes.
What do you mean by microbes?Microbes are tiny living things that are found all around us and are too small to be seen by the eye. They live in water, soil, and in the air. The human body is home to millions of these microbes too, also called microorganisms. Some microbes make us sick, others are important for our health.
Moreover, there are several types of microbes, which include bacteria, archaea, protozoa, fungi, algae, lichens, slime molds, viruses, and prions.
Therefore, most of these organisms can survive outside of a host in the air or soil, with the exception of viruses, which can only survive for a brief time outside their host cells.
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An EMT reaches the scene of a car accident, disinfecting and dressing a man's head wound that has been bleeding profusely. Upon taking off his bloodied latex gloves, he notices that a shard of window glass has penetrated one glove and cut is palm. Years later, long retired after a second career as an accountant, he is surprised to discover that he has liver cancer. Thinking back, he recalls having received both hepatitis vaccines available at the time of the exposure, and guesses that he may most likely have been exposed to __________.
Answer: hepatitis C.
Explanation:
Based on the information given in the question, it's most likely that the person has been exposed to hepatitis C.
Hepatitis C is an infection that is caused when a virus attacks the liver which leads to the inflammation of the liver. Since the person reaches the scene of a car accident, it's possible that the EMT got in contact with the contaminated blood. In this case, he most likely have been exposed to hepatitis C.
Six examples of vectors
Answer:
Mosquitoes West Nile Virus St. Louis Encephalitis Western
Answer:
Plasmid
Phage
Cosmids
Bacterial Artificial Chromosomes
Yeast Artificial Chromosomes
Human Artificial Chromosome
Explanation:
Hope this helps!
:)
What do we make with the energy we get from our food
Each one of the boxes on the Punnett square represents what probability of a offspring genotype?
A-10%
B-0%
C-1%
D-25%
Answer: D - 25%
Explanation:
There are four boxes in this punnet square, each one an equally possible genotype for the offspring.
Each box then has a 1/4 (25%) possibility of being the offspring's genotype.
Each one of the boxes on the Punnett square represents a 25% probability of an offspring genotype. Therefore, option D is correct.
What are a punnet square and its uses?Every possible outcome of a genetic cross between two individuals with known genotypes is listed in the Punnett square, a table. In its simplest form, the Punnett square is a square divided into four quadrants.
A Punnett square can be used to determine the expected frequencies of various genotypes in the children of two parents. A Punnett square can be used to forecast the percentages of phenotypes that will come from known genotypes in a cross' offspring.
Thus, each one of the boxes on the Punnett square represents a 25% probability of an offspring genotype. Therefore, option D is correct.
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List the letters in order to complete a timeline below that summarizes the events of succession. A. Lichens appear on the rocks. B. A glacier retreats and leaves behind only gravel deposits. C. Trees begin to grow D. Mosses appear as the rocks are broken down into soil. E. Small shrubs take root and displace the grasses. F. Plants and grasses start to grow Answer
Answer: B, A, D, E, F, C
Explanation:
Ecological succession: Primary succession has different stages, therefore it has to grow from the rocks (fungi, lichen, algae, and fungi).
Answer:b,a,d,e,f,c
Explanation:
ASAP
Which information can best be used as evidence to support
the answer to Part A?
Select all that apply.
A. Desert areas have less precipitation that non-desert areas.
B. Both desert and non-desert plants absorb light from the Sun.
C. Plants in both desert and non-desert areas can grow leaves.
D. Lower temperatures in non-desert areas reduce the rate of evaporation.
E. Desert areas are most often found at low latitudes.
Answer: i think it is c and b but im not sure
Explanation:
how do feedback mechanisms help us predict future natural phenomenas
Answer:
Positive feedback loops enhance or amplify changes; this tends to move a system away from its equilibrium state and make it more unstable. Negative feedbacks tend to dampen or buffer changes; this tends to hold a system to some equilibrium state making it more stable.
Explanation:
This means that the Everglades is most likely
a lake.
an estuary.
a river.
deep ocean.
Answer:
It’s B)an estuary
Explanation:
I did the assignments already and got it right
By looking at the picture. This means that the Everglades is most likely an estuary. The correct option is B.
What is the Everglades?Everglades is a national park that is present in Florida in the United States. This park contains bald cypress and pond cypress species of cypress trees. These trees are mostly growing near water or their roots are under the water.
A partially contained, coastal body of water called an estuary is where freshwater from rivers and streams and brackish water from the ocean mingle. Estuaries and the regions that surround them serve as transitional areas from the land to the sea.
The picture here is one of a cypress tree which is grown in the water these trees are mangrove trees they need, they give up on brackish water.
Thus, the correct option is B. an estuary.
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How do the variations of traits like PTC tasting
and tongue rolling compare to ones like height
,eye color and skin color?
When the homeostasis of the body is disrupted which of the following can occur?
a.)hypothermia
b.)shock
c.)shortness of breath
d.)increase in blood pressure
e.)none of the above
f.)all the above
Answer: I think it's (f) all of the above.
Explanation
Because It regulates temperature, glucose, toxins, blood pressure, and pH.
The human digestive system is approximately 900 cm long. Food is moved through the digestive tract primarily by -
А
bile produced by the pancrease
B
the enzymes amylase and pepsin
с
muscular contractions
D
chewing the food
Answer:
Muscular contractions
Explanation:
The muscles contract when the food is moved through the digestive tract
Food is moved through the digestive tract primarily by muscular contractions (Option C).
What is digestion?Digestion refers to the physiological process where foods are absorbed and assimilated by the digestive system.
During digestion, foods are moved across organs through smooth muscle contractions.The smooth muscle is an involuntary muscle associated with peristaltic movements during digestion.In conclusion, food is moved through the digestive tract primarily by muscular contractions (Option C).
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Sudhi is studying the motion of a toy car. She places the car in the middle of a ramp and releases it.
Hello. Your question is incomplete. However, when researching, I managed to find a question like yours and found that you forgot to mention that the question wants you to determine which is the best reference point in this scenario.
Answer:
The best point of reference is the starting position of the toy car.
Explanation:
To study the movement of the car it is necessary for Sudhi to establish a reference point, so that she can calculate all the variables associated with this movement. The best variable in this scenario is the starting position of the car, when it is still on the ramp. Thus, Sudhi needs to determine the distance between the car and the ground, that is, what the car's starting position is. She will be able to discover this when determining the height of the ramp.
