Answer:
Lipids
Explanation:
The cell membranes are primarily made up of two layers. The central bilayer is formed by the lipids in the cell membrane. Lipids surround the cytoplasm of cells to help the cell control substances that go in and out of the cell. This helps to protect the cell from a harmful substance that may potentially enter the cell.
(Some information from "StaceeLichtenstein" on Brainly)
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Which is the neurotransmitter that causes the release of calcium ions from reservoirs within the muscle cell and thereby initiates the steps of contraction?
Answer:
Explanation:
Motor neurons release acetylcholine from synaptic vesicles to trigger muscle contraction. Motor neurons contain high concentration of synaptic vesicles filled with acetylcholine which is the neurotransmitter that triggers contraction of skeletal muscle cells.
Please help!! will give 10 points!! Two scientists want to compare their research of fireflies. Which information must the two scientists provide to each other to determine if they studied the same type of fireflies? (B.8, A) *
1 point
Size of the firefly populations
Type of habitat in which the fireflies live
Color of light produced by the fireflies
Species name of the fireflies studied
Answer:
its the last answer "species name of the fireflies studied" t
Explanation: i took a quiz with the same question and got it right
The correct answer is the species name of the fireflies studied by the two scientists provide to each other to determine if they studied the same type of fireflies.
The species name of the fireflies studied is important as it provides binomial nomenclature to be explained well. A sit allowed people to communicate about the species world.
What is binomial nomenclature ?In taxonomy, the binomial nomenclature provides names for species of flora and fauna in the living world.
Hence concluded that information must the two scientists provide to each other to determine if they studied the same type of fireflies is the best information Species name of the fireflies studied.
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On a hike through the forest, you notice a population of 100 flowering plants that all look identical. They span an area of approximately 100 square meters, but there are other populations of this species nearby. You take some representatives from one corner of their distribution back to the lab, sequence their DNA and conclude that they are genetic clones. True or false
Answer:
True
Explanation:
They are identical genetic clones so there is no difference which is the key to natural selection, hence given statement is false.
What is natural selection?Since they are genetic clones and hence identical, they lack the phenotypic variation that is essential for evolution to take place through natural selection.
Genetic drift cannot happen since they have the same phenotype and are genetically similar.
Genetic variation must occur randomly for genetic drift to take place there must be a shift in the frequency of one allele over time within a population for genetic drift to take place.
Therefore due to an identical clone, there is no chance of natural selection, hence given statement is false.
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Define homeostasis in at least five words
Answer:
to any process that living things use to actively maintain fairly stable conditions necessary for survival.
Explanation:
Answer:
property of cellss and tissues
Explanation:
that five words
Which artery allows you to feel your pulse on your wrist?
Answer:
d. Radial artery
Explanation: isssssssssssssss correct
Answer:
The last one Radial artery
Explanation:
vertebrae of which regions are fused in the adult?
Answer:
Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx. Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.
Explanation:
Answer:
our vertebrae are numbered and divided into five regions: cervical, thoracic, lumbar, sacrum, and coccyx
Explanation:
¿Mediante qué mecanismo de transporte la glucosa ingresa a las células intestinales? *
C. Difusión facilitada.
D. Transporte en masa.
A. Osmosis. B. Difusión simple. C. Difusión facilitada. XD. Transporte en masa.
B. Difusión simple. C. Difusión facilitada. XD. Transporte en masa.
Answer:
c.
Explanation:
You discover a new type of marine organism that has the kidneys of a fish but no gills. Based on what you know about other aquatic organisms, the newly discovered organism is _____ compared to the surrounding water. hypotonic isotonic hypertonic
The newly discovered organism is hypotonic compared to the surrounding water. Thus, the correct option for this question is A.
What will happen if aquatic organisms have kidneys?The function of the kidneys in aquatic organisms is to excrete excess water by retaining most of the filtered solutes. This makes the aquatic organisms more survival because the retaining of solutes gives more energy.
If the newly discovered organism is hypotonic to the surrounding water, it takes the water from the surrounding atmosphere which is then excreted by the kidney through the retention of filtered solutes. This mechanism is accomplished by simple diffusion. While gills are not present in the newly formed organism.
Therefore, the newly discovered organism is hypotonic compared to the surrounding water. Thus, the correct option for this question is A.
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Incomplete expansion of the lung or a portion of lung is termed _____, which may be produced by _____
Answer:
atelectasis
Explanation:
6. Nuclear power plants produce no
but they do generate
Answer:
Nuclear power plants produce no carbon dioxide emissions, but they do generate greenhouse gasses.
:)
Nuclear power plants produce no greenhouse gases, such as carbon dioxide and methane, which are responsible for global warming and climate change. However, they do generate nuclear waste.
What are nuclear power plants?Nuclear power plants generate electricity by using the heat produced by nuclear fission reactions to boil water and produce steam. This steam then drives turbines, which generate electricity. While nuclear power plants do not produce greenhouse gases or other air pollutants, they do generate nuclear waste, which is radioactive and requires special handling and storage to prevent harm to human health and the environment. Nuclear accidents, while rare, can also have catastrophic consequences, as demonstrated by the Chernobyl disasters.
Hence, nuclear power plants produce no greenhouse gases, such as carbon dioxide and methane, which are responsible for global warming and climate change. However, they do generate nuclear waste.
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The light reactions of Photosynthesis occur in the_________ and the dark reactions occur in the__________.
Answer:
morning night..............
Which is the LEAST likely area sea snakes would live?
A) Atlantic Ocean
B) Southern Ocean
C) Indian Ocean
D) Pacific Ocean
Answer:
The Atlantic Ocean
Explanation:
Answer:
Atlantic Ocean
Explanation:
which evidence is consistent with the endosymbiotic hypothesis for the origin of the mitochondrion?
how many phosphates does a molecule of ATP contain
Answer: 3
Explanation:
HELP
Nephrons, the functional unit of kidneys, are responsible for formation of urine. The sentences describe situations that are the result of problems in the urine formation process. For the nephron shown below, match each situation to the step in the urine formation process where the problem lies.
The presence of large proteins in Stella's urine is due to a problem with filtration.
A problem with filtration is responsible for John's blood test report indicates a high toxin level
A problem with secretion is the reason why Miguel's blood test shows an increase in metabolic waste.
A problem with secretion is why Janice's urine report shows the presence of vital minerals.
What is a nephron?A nephron is the functional unit of the kidneys that is responsible for the formation of urine.
Each nephron has a structure for blood filtration known as the glomerulus. The glomerulus is a network of capillaries that is surrounded by the Bowman’s capsule or the glomerular capsule which is a cup-like structure.
During filtration by the nephron, water and minerals are filtered out of the blood.
During secretion, small molecules such as waste minerals and hydrogen ions pass from the capillaries into the renal tubule and are removed as urine.
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how does dna synthesis occur, and what is the direction of synthesis?
Answer:
DNA synthesis occurs in the 5′ → 3′ direction only and requires a large suite of specialized enzymes.
Explanation:
the genetic information in a cell flows
Answer:
it's true
Explanation:
genetic information flows from parents to their children
When an injury occurs, capillaries and tissue cells may rupture and release which of the following?
Neutrophils
Macrophages
*Bradykinin
Plasma proteins
Answer:
Bradykinin is correct
Explanation:
compared to blood capillaries, lymphatic capillaries__________.
Compared to blood capillaries, lymphatic capillaries are larger in diameter and possess closed ends.
What is the function of lymphatic capillaries?The function of lymphatic capillaries deals with the process of keeping the overall balance of fluid in your body. This function is stimulated by returning the interstitial fluid back into the circulatory system with the help of lymph capillaries.
In blood capillaries, fluid can never being flowed but in lymph capillaries, fluid can easily flow throughout the cell walls. But the movement of this fluid is only permitted in the forwarding direction. This is also the unique feature of lymphatic capillaries.
Therefore, the major difference between blood capillaries and lymphatic capillaries is that lymph capillaries are larger in size.
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State 4 economic importance of meat
Answer:
The meat industry may also be an important component of the export sector, generating not only valuable foreign exchange but also savings through import substitution. Meat production therefore provides the opportunity for converting non-exportable resources into an important component of the national economy.Meat production is an important part of the world economy with important contributions to local, national, and international trade. There may be multiple paths to the future of meat production.The American Meat Institute released a new economic impact study in June that shows the nation's meat and poultry industry contributes roughly $832 billion, nearly 6% of total gross domestic product, to the U.S. economy, along with nearly 6.2 million jobs and $200 billion in wages and benefits.Answer:
The most frequently asked question in a broiler operation is which breed should be used? Integrators tried multiple breeds in their operation and now they have the results . Unfortunately these results most of the time only consist of average daily gain, feed conversion ratios, and mortality. They less often go into any detail about the different yield values they have got in the testing process or even what their product mix consists of. These things are just as important if not more economically than the live factors that go into choosing a breed for an operation.
Of course there are some countries with very large live bird markets and a few countries where the industry is not vertically integrated, and in those situations the meat yield difference of one breed versus another may not be very important. In most poultry markets around the world, however, the end product is meat and the economic factor driving the company is profit per pound or kilogram! Here, a good combination of live performance and meat yield are critical in analysing the most profitable breed for each specific company based on their needs for their product mix.
Compare and contrast macroevolution and microevolution
Answer:
Microevolution happens at a smaller scale, hence the prefix micro. Macroevolution happens at a larger scale, hence the prefix macro.Microevolution occurs within a single population or species, over a shorter period of time.Macroevolution can occur among multiple species, and takes a longer period of time.Explanation:
Hope this helps, I really tried to explain this :)
Within which galaxy does the Sun and its solar system belong?
5: Q: Why aren't all offspring from the same two parents identical?
Answer:
because all offspring are not same function in parent identical
Which type of blood vessel contains blood at the highest pressure?
veins
arteries
capillaries
shunts
Urgentttt
The map shows the number of waterways in each state that still fail to meet
the goal of the Clean Water Act, enacted in 1972.
Which of these state has the fewest polluted waterways
Answer:
B) Alaska (AK)
Explanation:
According to the key, Alaska, along with Arizona have the fewest polluted waterways, and since Arizona isn't an option, the correct answer is Alaska.
The state of Alaska is one of the states that ranks lowest in the pollution index as shown hence option B is the correct answer.
What is the clean water act?The clean water act was meant to protect the waterbodies in the United States and decrease the cases of water pollution to the barest miniumum.
From the map that we can see, the state of Alaska is one of the states that ranks lowest in the pollution index as shown hence option B is the correct answer.
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Which color of star is likely to have the most thermal energy?
PLEASE HELP WILL GIVE BRAINLIEST IF CORRECT
Which physical adaptations increase a plant's chances of survival in a wet environment? (Select 2 correct answers.)
□ having waxy leaves
□ having swollen trunks
□ having deep roots to survive fires
□ having roots that grow above ground
Answer:
I think 1 = having waxy leaves and 4 = having roots that grow above ground
Explanation:
Not Sure how to explain.
In an ecosystem, the physical adaptation which increases a plant's chances of survival in a wet environment is having waxy leaves as it will not allow water to accumulate on the leaves.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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HELP FAST PLEASE
Iconic Maine species such as moose, Canada lynx, loons, boreal chickadees, eastern brook trout, saltmarsh sparrows and Atlantic puffins are under stress from climate change. A mutation in the boreal chickadees increases the ability of the bird to catch and eat certain insects. Which factor might determine whether the frequency of the new allele will increase?
A)whether the mutation allows the chickadees better access to food sources than those without it
B)whether those with the mutation make better mates
C)whether the mutation is dominant or recessive
D)whether the mutation is random
Answer:
A) Whether the mutation allows the chickadees better access to food sources than those without it
Explanation: USATestprep
The factor that may determine the frequency of the new allele will increase is whether the mutation allows the chickadees better access to food sources than those without it.
What do you mean by Mutation?A Mutation may be defined as sudden, stable, and inheritable changes in the genetic material of an organism.
A mutation changes the whole sequence of the genetic material and causes a change in the genotype as well as phenotypes of an organism.
Therefore, the factor that may determine the frequency of the new allele will increase is whether the mutation allows the chickadees better access to food sources than those without it.
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Weathering breaks rock into pieces called
Answer:
sediment
Explanation:
neuroglia that produce myelin insulation in the cns are
