Answer:
a the body shivers to generate heat
Question:
Which of the following is an example of positive feedback?
Answer: CORRECT (SELECTED)
A blood clot inducing more blood clotting.
Explanation:
Positive feedback loops amplify the starting signal. In this case, the clotting of blood stimulates more blood to clot.
What would be one easy way to increase the amount of torque a wind turbine produces?
A. Decrease the height of the turbine
B. Decrease the length of the rotor blades
C. Increase the height of the turbine
D. Increase the length of the rotor blades
¿Cuáles son los usos beneficiosos del fármaco que utiliza la comunidad médic?
. What is the mechanism(s) that the drug uses?
Answer:
In pharmacology, the term mechanism of action (MOA) refers to the specific biochemical interaction through which a drug substance produces its pharmacological effect. A mechanism of action usually includes mention of the specific molecular targets to which the drug binds, such as an enzyme or receptor.
Can someone help me?
Do plants absorb nitrogen?
Answer:
No, not absorb nitrogen.
yes. plants absorb nitrogen through soil
Which of the following processes can remove carbon dioxide from the atmosphere?
Burning Fossil Fuels
Deforestation
Phtosynthesis
Destruction of Ozone
Answer: Phtosynthesis
Explanation:
Photosynthesis
Photosynthesis removes carbon dioxide naturally — and trees are especially good at storing carbon removed from the atmosphere by photosynthesis
How many half lives would have passed if only 6.25% is still radioactive?
Answer:
It will take 4 half lives
Explanation:
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Screenshot 1. The graph below represents changes in two different fish populations over time.
Which of the following most likely caused the change in the fish population after Year 3?
A. A change in habitat occurred so the orange fish could no longer blend in with the habitat.
B. The food source for all the fish decreased.
C .A change in habitat occurred so the dark green fish could no longer blend in with the habitat.
D. Climate change affected the habitat killing off the bright orange fish.
Screenshot 2. Use the chart below to identify the term that best describes the energy role for each organism. Which of the following correctly describes the energy roles of the organisms in the table?
A. 1 – Herbivore, 2 – Scavenger, 3 – Decomposer, 4 – Carnivore, 5 – Omnivore
B. 1 – Carnivore, 2 – Decomposer, 3 – Scavenger, 4 – Omnivore, 5 - Herbivore
C. 1 – Decomposer, 2 – Scavenger, 3 – Omnivore, 4 – Herbivore, 5 – Carnivore
D. 1 - Carnivore, 2 – Decomposer, 3 – Scavenger, 4 – Herbivore, 5 - Omnivore
Answer:
screnshoot 1 - C
screenshoot2-C
8. The table below shows the number of generations required to produce white
butterflies through natural selection Calculate the mean, or average, number
of generations it takes to produce white butterflies.
Answer:
mean is 44.8
median is 36
Range is 32
Explanation:
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give reason an Empty bottle floats on the surface of a water while a bottle filled with water flows inside the liquid
Answer:
The empty plastic bottle floated on water. The bottle filled with water sank because the weight of empty plastic bottle is less than the weight of water displaced it but when the bottle is filled with water its weight becomes more than the weight of water displaced by it.
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Even though the finches on the various Galapagos Islands require different biotic and abiotic factors for their survival, these finches would most likely be grouped in the same
a) kingdom, but found in different ecological niches
b) population, but found in different ecosystems
c) species, but found in different habitats
d) species and found in the same biosphere
Answer:
C
Explanation:
It is C because the question says they are all finches, they just need different habitats/living conditions
Finches are most likely to grouped in the same species, but found in different habitats.
They are well known for their remarkable diversity in beak form and function.Darwin postulated that beak of an ancestral species had adapted over time to equip the finches to acquire different food resources.Why are Darwin’s finches important?Species diverge in mate preference before genetic incompatibilities evolve.Different populations can function as biological species before they would be recognized as species solely in the basis of genetic distinctness.With the help of the finches Darwin solidify the idea of natural selection.To know more about Darwin finches here
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Alleles are different versions of:
Genotypes
Genes
Chromosomes
Phenotypes
Answer:
Genes
Explanation:
Which of the following is the best description of biotechnology? ((NO LINKS PLEASE))
A.) Biotechnology is using genomics to make informed decisions.
B.) Biotechnology is the use of living organisms and life’s processes for practical purposes.
C.) Biotechnology is a branch of science that does not pose any risks.
D.) Biotechnology is the manipulation of genes.
Answer: A
Explanation:
what do you think? So why don't t apes walk upright like us?
Apes were basically monkeys. They walk on their hands and feet but crouched. There's a bunch of theories saying that humans evolved from apes. As apes evolved, they started walking upright.
Differentiate between stomata and lenticels
Answer:
Stomata are tiny pores found in the epidermis of the plant leaves and stems which involve in gas exchange of plants.
Lenticels are lens-shaped spots or present in the woody trunks or stems of the plants. They act as pores which involve mainly in direct gas exchange of plants betweem internal cells of the stem and the environment.
Which systems would work best with the nervous system?
Answer:
endocrine
Explanation:
What is rate of change of position at a specific point in time?
Answer:
instantaneous speed. the rate of change in position at a given point in time. velocity. the speed of an object and the direction of its motion.
Runoff from farms that use fertilizers is entering a small lake. This will most directly affect the lake by causing
A the lake to dry up.
Balgae to grow in the lake.
water in the lake to become solid.
D
the lake to become deeper.
Answer:
B. algae to grow in the lake.
Explanation:
Because it is the "Correct Answer"
In which types of cells must mutations occur in order for the mutation to be passed on to future generations?
1. Somatic cells
2. Genes
3. Gametes
4. Alleles
Answer:
Genes
Explanation:
Mutations occurs on genes
Answer:
2. Genes.
Explanation:
Mutations can occur in either cell type. If a gene is altered in a germ cell, the mutation is termed a germinal mutation. Because germ cells give rise to gametes, some gamete s will carry the mutation and it will be passed on to the next generation when the individual successfully mates.
What effect do glass panels have on the infrared photons ?
Answer: The glass pane absorbs and re-radiates all of the infrared photons. The glass pane absorbs all invisible photons as well as visible photons. The glass pane transmits all invisible photons as well as visible photons.
Neon (Ne) is right after fluorine (F) on the periodic table and directly above Argon (Ar). What element does Neon share more similar properties with, fluorine or Argon? Be sure to use claim, evidence and reasoning in your answer.
Answer: Argon
Explanation: They both have their outer electron shell filled, so they have no tendency to acquire or lose an electron. Therefore, they are very unreactive, a reason they are also called inert gases.
The answer is Argon as Neon shares more similar properties with it.
The similarities between them are that they both have the outer electrons shell filled and have a tendency to gain or lose electrons.
Why are the Neon and argon are in the same group?As they have the same atomic no. and same electron no. in the outer shell of their valence shells.
Thus it is clear that due to similarities between the electrons in them they are showing similar characteristics.
To know more about noble gas refer to the link :
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If over time, a population has a larger birth rate than death rate, what is happening to the size of that population?
- Staying the same over time
- Decreasing in size
- Decreasing first and then growing
- Growing in size
The reading passage claimed, “trees are essential for all life in the stream.” Choose all the benefits that trees provide to streams.
1. Trees provide essential nutrients from dead leaves
2. Trees cause sediment to erode from the land and wash into streams
3. Trees provide shade to help keep cool water temperatures in the stream.
4. Trees decrease dissolved oxygen levels in the water
5. Trees filter stormwater run off which helps keep harmful pollutants out of the stream.
6. Trees provide habitat to wildlife.
Answer:1,3,5,6
Explanation:
The benefits that trees provide to streams are Trees provide essential nutrients from dead leaves, Trees provide shade to help keep cool water temperatures in the stream, Trees filter stormwater run off which helps keep harmful pollutants out of the stream and Trees provide habitat to wildlife.
How important is the tree to life on the planet?It is the trees that increase the humidity of the air, prevent erosion along the rivers, carry out photosynthesis resulting in the production of essential oxygen for living beings, provide shade and manage to reduce the temperature, reduce air pollution, serve as a shelter for species animals, contributing to respiration.
Trees have numerous health benefits. They absorb carbon dioxide (CO2) and release oxygen, improving air quality and humidity, and can even absorb noise and noise in the city.
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How do limiting factors change the carrying capacity?
7th grade
Acid rain contributes to all of the following problems except:
A.) Smog
B.) loss of biodiversity in aquatic ecosystems
C.) Damage to vegetation
D.) Advance chemical weathering
Answer:
Option A ( Smog ) .......
A group of sheep run in random directions to confuse a single predator. This is an example of which social behavior?
O migrating
O herding
O schooling
•
cooperative hunting
Answer:
D). Cooperative hunting
Explanation:
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1: Describe the Early Ideas about Natural Selection
2: Who was Charles Darwin and what was his contribution to science?
Don't copy from the internet, If you do, Summarize it into an answer no longer than 2-3 sentences and make it your own words
BIG BRAIN ANSWER:
Before Darwin, a naturalist named Jean-Babtiste Lamarck believed that the environment altered the shape of individuals and that these acquired changes were then inherited. Meanwhile, Charles Darwin was a naturalist on a ship called the HMS Beagle, and he discovered that the beak shape varies among finch species in the Galapagos Islands. He found that the beak of an ancestral species of finch had somehow been transported to these islands, and adapted over time to acquire different food sources that were available, causing variation, and that nature just selected for the most suitable beak shape and against less useful ones.
A mutation in the gene coding for a single-polypeptide enzyme results in the substitution of the amino acid serine, which has a polar R group, by the amino acid phenylalanine, which has a nonpolar R group. When researchers test the catalysis of the normal enzyme and the mutated enzyme, they find that the mutated enzyme has much lower activity than the normal enzyme does. Which of the following most likely explains how the amino acid substitution has resulted in decreased catalytic activity by the mutated enzyme?
A The substitution decreased the mass of the enzyme so that the mutated enzyme binds more weakly to the substrate than the normal enzyme does.
B The substitution altered the secondary and tertiary structure of the enzyme so that the mutated enzyme folds into a different shape than the normal enzyme does.
C The substitution caused many copies of the mutated enzyme to cluster together and compete for substrate to bind.
D The substitution caused the directionality of the enzyme to change such that the amino terminus of the normal enzyme has become the carboxy terminus of the mutated enzyme.
Answer:
Bats have few natural predators -- disease is one of the biggest threat. Owls, hawks and snakes eat bats, but that’s nothing compared to the millions of bats dying from White-Nose Syndrome. The disease -- named for a white fungus on the muzzle and wings of bats -- affects hibernating bats and has been detected in 33 states and seven Canadian provinces. More than 6.5 million bats have died so far from White-Nose Syndrome. Scientists are working to understand the disease. You can help -- avoid places where bats are hibernating, and if you do go underground, decontaminate your clothing, footwear and gear.
Explanation:
the answer is c
In most cases, the two major climatic factors affecting the distribution of organisms in terrestrial ecosystems are __________. In most cases, the two major climatic factors affecting the distribution of organisms in terrestrial ecosystems are __________. temperature and sunlight predators and parasites competitors and predators precipitation and temperature wind and precipitation
Answer:
precipitation and temperature
Explanation:
Temperature and water are considered major abiotic factors that affect species distribution in terrestrial ecosystems. The temperature can affect the distribution of terrestrial organisms due to many species maintain a constant internal temperature, while other species maintain a body temperature range that may be very different from the environmental temperature, and therefore they will not be able to carry out their metabolic functions. Hibernation is an adaptation that allows some terrestrial animals to escape temperature fluctuations. Moreover, water is another limiting factor for life, since water is critical for cellular processes. The waxy cuticle is an adaptation that allows terrestrial plants to avoid excessive water loss through transpiration.
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What is the relationship between tissues and organs?
• Scientists find life on Mars that is not made of cells.
• Scientists identify a cell organelle that practices the process of photosynthesis.
• Scientists determine that an organism is living if it is made of twenty structurally-identical cells.
• Scientists gather life from a volcano that is composed of cells which are very different from humans.
Answer:
Tissues and Organs? Cells are the basic building blocks of life, which can join together to form tissues, while different groups of tissues join together to form organs.
Explanation:
A man really wants to have a baby with type AB blood so he can brag to his friends that his kid is rare. What are his chances for a baby to get type AB blood if the mom has type O blood?
Answer:
0%
Explanation: