Answer:
Crossing over results in Genetic Recombination.
Explanation:
When you carry an object while walking at constant speed in a straight line, you exert an upward force on the object. Why are you not doing any work on the object?
When you carry an object while walking at constant speed in a straight line, you exert an upward force on the object.
Because any distance is not covered.
As
work done =displacement * force
if displacement is zero work done also be zero.
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is the fins are for breathing?
Answer: yes
Explanation:
Yes
Answer:
Overall, our results demonstrate that the pectoral fins are capable of ventilating cutaneous surfaces and dissipating Po2 boundary layers, thus supporting the role of the pectoral fins as respiratory structures in larval fishes.
HELPPPPP Some factories that burn coal produce smoke with harmful chemicals, such as sulfur. Scrubbers are devices that are attached to the smokestacks to reduce the amount of sulfur put into the atmosphere. To evaluate the effectiveness of these devices, what data would need to be collected?
A. The percentage of sulfur contained, on average, in a certain amount of coal
B. The amount of coal a factory burns each year, and how much sulfur it emits
C. The increase, over time, in the use of scrubbers by factories that burn coal
D. The amount of sulfur emitted by a smokestack before and after the scrubber is attached
Answer:
D. The amount of sulfur emitted by a smokestack before and after the scrubber is attached
To evaluate the effectiveness of these devices, the data would need to be collected is the amount of sulfur emitted by a smokestack before and after the scrubber is attached. The correct option is D.
What are scrubbers?Scrubbers are devices for reducing air pollution that employ liquid to filter out gases or particles from an industrial exhaust or flue gas stream. To effectively remove particles and polluting gases from the gas flow, this atomized liquid (usually water) entrains them.
Wet scrubbers are tools that use direct contact with a liquid spray to capture suspended particles. As the many small droplets in the spray collide with and entrain the particulates, a scrubber effectively washes the contaminants out of the contaminated air stream.
Therefore, the correct option is D.The amount of sulfur emitted by a smokestack before and after the scrubber is attached.
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The diagram above shows how sea breezes form clouds in coastal areas. Which map below shows a cloud pattern that would most likely result from the sea breeze cycle in late afternoon?
Answer: Map H
Explanation:
Sea breeze cycle clouds form in an area where land and a body of water such as an ocean or sea come into contact with each other so maps G and J are not possible as these formed over land and away from any coastlines.
These clouds form over land as it is on land that the sea breeze would be warmed by the land temperature and then rise up. Map F is therefore incorrect as those clouds are over the sea.
Map H is the most plausible answer as the clouds are right over land and the area is next to the ocean.
2. Which of the following describes a negative feedback system?
running cattle increase panic within a herd
microphone speaker feedback
feedback that magnifies output
feedback that regulates and stabilizes
Answer:
Feedback that regulates and stabilizes
Explanation:
Negative feedback systems are ones that try to always maintain homeostasis, or a certain state.
For example, the regulation of body temperature in humans is a negative feedback loop. This is because the body maintains a constant temperature at homeostasis, and will adjust if it is too hot or cold.
Feedback that regulates and stabilizes is a negative feedback system, because it involves regulation/stabilization, similar to the regulation of body temperature.
So, the correct answer is Feedback that regulates and stabilizes
Answer:
feedback that regulates and stabilizes
Explanation:
just took test
A mutation is least likely to affect a cell when the mutation --
A mutation is least likely to affect a cell when the mutation is silent in nature or is not associated with an exon, it is least likely to affect a cell. Any mutation that happens to the introns does not affect the cell's function.
What is the function of cells and mutation?As genetic materials, nucleic acids encode information about the cell's structure and function, its proteins, receptors, and so on. The mRNA that is formed from the gene has roles in the formation of the receptor, the enzymes, etc., so if any mutation happens to the gene that is in the coding region, then it can show its impact, but if the mutation is of the silent type, then it has no impact on the cell.
Hence, when a mutation is silent in nature or is not associated with an exon, it is least likely to affect a cell. Any mutation that happens to the introns does not affect the cell's function.
Learn more about the mutation here.
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Please put in order for a food chain.
Answer: C) The benthic invertebrates would decrease in population size because they are eaten by the sea ducks and the phytoplankton would increase in population size.
Explanation:
The benthic invertebrates are eaten by sea ducks. Sea ducks are eaten by bald eagles. If the bald eagle was removed, there would be more sea ducks because they will have no more predators. Since there are more sea ducks, they will need to eat more food, like benthic invertebrates. The benthic invertebrates would have a lower population because the sea ducks eat more of them.
Why not the other answers:
A) The bivalves would not increase in population size. Without the bald eagle preying on sea ducks, there would be more sea ducks, who need to eat more food, such as eating more bivalves.
The phytoplankton would not decrease. With sea ducks eating more food, more benthic invertebrates are eaten. There would be less benthic invertebrates to eat phytoplankton.
B) Tundra swans were never eaten by bald eagles. There is no arrow connecting them.
D) Wading birds were never eaten by ospreys. There is no arrow connecting them.
Explanation:
A Carbon Sink is a reservoir which absorbs more carbon than it releases. Suggest how carbon in the bodies of crustaceans and molluscs is removed from the oceanic food chain to become part of another, slower carbon reservoir.
Answer:
Crustaceans and Molluscs play an important role in the oceanic carbon sink.
Explanation:
Carbon sinks can serve to partially offset greenhouse gas emissions. Forests and oceans are both large carbon sinks. Algae is pressurized to bottom of the ocean by long term sequestration. Algae then falls to the bottom of the ocean and TRANSFORMS to fossil fuels.
CO2 is not combustible. creates carbonic acid in the oceans. Reduces seawater pH, carbonate ion concentration, and thus calcium carbonate (needed for shells for marine creatures, contributes to BOTTOM-UP EFFECT)If helpful, please mark as brainliest! =)
Which process occurs in all living organisms at all times?
O cellular respiration
aerobic respiration
anaerobic respiration
O photosynthesis
Answer:
It is:
A. Cellular RespirationExplanation:
took the test
please help!!!!!!!!!!!!!!!!!!!!
i will award the best answer with brainlyist
PLEASE HELPP
diversity in a habitat represents
A. a group of the same species
B. a group of different species
C. a unicellular organism
Answer:
B. a group of different species
Explanation:
Diversity means to have variety. (In this case, a variety of species)
Blood Types;
A man with type O marries a woman with type AB.
Several children were born.
1. What is the genotype of the man?
2. What is the genotype of the woman?
3. True or false? the mother of the man had type AB blood.
4. Could the mother of the woman have type O blood?
5. what fraction of offspring would have type B blood?
6. what fraction of the children would have type AB blood?
7.Could this couple have a child with type O blood?
Please answer all parts of the question!
ERRE
Which phrase best describes the outer planets?
rocky with few moons
gaseous with slow rotations
dense with few moons
gaseous with low density
Answer:
Gaseous and low density is the phrase that best describes the outer planets of the solar system.
Let me know if this helps!
Answer: The answer is: gaseous with low density
Explanation: I have my ways ;>
Have a great day!
-Sunny
When people answer your question with “hey the answer is in this file here’s the link” is that safe?will it give you a virus?
Answer:
It depends on the file but I recommend to just not open the file and answer a different question just to be safe.
Using the diagram below, identify the correct chemical formula for the molecule
shown.
Answer:
p(OH)30
Explanation:
add the OH all together
HELP ASAP!!!!! I’m bein timed :(
Acid deposition kills things ___.
A. very slowly
B. within minutes
C. within hours
D. at an average rate
Describe and explain the abiotic and biotic factors that may affect the numbers or distribution of organisms in their habitats.
Answer:
The biodiversity and distribution of organisms within an ecosystem is due to both abiotic (non-living) and biotic (living) factors. Abiotic factors are non-living variables that can influence where organisms can live. Examples of abiotic factors include: light intensity.
Explanation:
Which of the following is true during the autumn?
O A. Sunset gets later each day.
O B. Sunrise gets earlier each day.
O C. More hours are added to the day.
O D. Sunrise gets later each day.
SUBMIT
Answer:
the only decently right answer would be C.
Explanation:
I don't think any of these actually have to do with autumn, but I guess C is the best answer
Answer: answer d on apec
Explanation:
Which of the following statements is FALSE? *
The Rock Cycle is happening all the time on Earth.
Some processes of the Rock Cycle take a long time.
O All rocks were once Metamorphic Rocks.
O Most rocks on Earth are Igneous Rocks.
Answer:All rock were once metamorphic rocks
Explanation:
Melted rock deep inside Earth forms igneous rocks. Sand, silt, plant and animal skeletons make sedimentary rocks. Heat and pressure underground convert rocks into metamorphic rocks. Therefore, option (C) is correct.
What is rock cycle?The rock cycle is a web of processes that outlines how each of the three major rock types—igneous, metamorphic, and sedimentary—form and break down based on the various applications of heat and pressure over the course of time. Igneous rocks are rocks that are formed by volcanic eruptions, while metamorphic rocks are formed when heat and pressure are applied to preexisting rocks. Shale, a type of sedimentary rock, can be transformed into slate with the use of heat and pressure, for instance.
The rock cycle is an important component of our dynamic Earth because it allows rocks to shift from one type of rock to another based on their location and circumstances. It recycles rocks to build new structures when plate tectonics changes the Earth's surface.
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4. Give two examples of how you interact
with the carbon cycle.
Answer:
in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. ... Animals that eat plants digest the sugar molecules to get energy for their bodies. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle.
Explanation:
7. In which direction does water move through a plant?
A. Upward from the roots
B. Sideways through the leaves
C. Downward from the leaves
Answer:
A. Upward from the Roots
Answer:
The water Moves through a plant UPWARD FROM THE ROOTS.
Explanation:
When we water the plant, we water from the root and the water goes up in the plant and that's how the every part of the plant is fully watered.
Connor placed a piece of celery plant in a cup of colored water. The diagram shows the results of the experiment.
Which structure in the celery plant was most likely responsible for making the leaves turn red?
phloem
pollen
embryo
xylem
Answer:
xylem
Explanation:
The xylem is responsible for the transport of water.
Answer:
XYLEM is the answer for you :)
Explanation:
Animal cells perform functions using energy that is derived from glucose ( C 6 H 12 O 6 ) . Which molecule is required for animal cells to obtain the MOST energy possible from a molecule of glucose?
Which methods reduce friction? O increasing speed O lubricating surfaces O using sticky materials O increasing surface roughness
Answer:b)lubricating surfaces
Explanation:took it on edge hope this helped
Need answer quick please thanks
Answer:
Aa would be ur answer:)))
PLS SOMEBODY HELP!!!!
Then they want us to name 4 mRNA bases for the codon
Answer:
It was also known that there are only four nucleotides in mRNA: adenine (A), uracil (U), guanine (G), and cytosine (C).
Explanation:
I hope this helps :)
Question 7
0.5 pts
When does DNA replication occur
before the cell divides
O during cell division
O after the cell divides
O before protein synthesis
Answer:
I think your answer will be out of the cell divide
2 When molecules are spread evenly across the cell ________ membrane,
is reached.
a equilibrium
b. difference
C. solution
d. transportation
Answer:
The answer is A. Equilibrium
Explanation: And I know it's a Equilibrium because I got it right the the quiz hopes this helps :) mark brianlest pls
How does the nucleus control which proteins are made by the ribosomes?
1. It controls which genes get used.
2. It controls the number of ribosomes.
3. It controls the speed with which proteins are made.
4. It controls the order in which proteins are made.
Answer: it controls genes that get used.
Explanation:
Please help!
2. Which is not true about meiosis? A. The chromosomes in the daughter cells are half the number from the parent cell. B. The chromosomes in the daughter cells are the same number as the parent cell. C. The only cells that will undergo meiosis will become sperm or egg cells used for reproduction.
D. The shuffling of genes happens in meiosis.
Answer:B
Explanation:even if she is the daughter that doesn’t mean she will have the same chromosomes. Everyone in this world has different chromosomes even twins