Answer:
The atria are thin-walled sacs that receive blood from the body or lungs, while the ventricles have a thick muscular wall because they must pump the blood with greater pressure than the atria.
Explanation:
In the human heart, the atria and ventricles are responsible for handling blood and have different structures and function.
The atria are thin-walled sacs located at the top of the ventricles and their function is to receive the blood that comes from the whole body —right atrium— or from the lungs —left atrium— to pass it to each ventricle through the atrioventricular valves, which does not require much pressure. On the other hand, the walls of the ventricles are made up of a thick layer of muscular tissue, since the pressure with which they must pump the blood -towards the lungs or to the entire organism- is greater than that of the atria.The structure of each chamber of the heart is configured to be able to fulfill the specific function that they possess.
Submarines use a technology called "sonar" that bounces sound waves off of objects in the water. The sonar operators measure how long it takes for the signal to return to them. The information they get from sonar allows them to know
A.
how massive objects in the water are
B.
if objects in the water are man-made
C.
how far away objects in the water are
D.
what color objects in the water are
Answer:
c......................
Answer:
C
Explanation:
how far away objects in the water are
What types of organisms have mitochondria
Answer:
sup ._.
Explanation:
The mitochondrion (/ˌmaɪtəˈkɒndrɪən/, plural mitochondria) is a semi autonomous double-membrane-bound organelle found in most eukaryotic organisms. Some cells in some multicellular organisms may, however, lack mitochondria (for example, mature mammalian red blood cells). A number of unicellular organisms, such as microsporidia, parabasalids, and diplomonads, have also reduced or transformed their mitochondria into other structures.
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What do you call a system that reverses the original stimulus
A. Positive feedback
B. Negative feedback
C. Stressor
D. Response
Answer:
Positive feedback
Explanation:
It is positive feedback since positive feedback always ends with counter-signaling/ suppresses the original stimulus. In other words, it goes against the original stimulus.
Answer:
Negative feedback
Explanation:
If right could i get brainliest...but if im wrong then im sorry!
Explain how the electron transport chain makes ATP.
Answer:
t
Explanation:
While Glycolysis and the Citric Acid Cycle make the necessary precursors, the electron transport chain is where a majority of the ATP is created. The Electron Transport Chain makes energy ... At the end of the chain the electrons are taken up by oxygen molecules to make water. This is why oxygen is known as the final electron acceptor.
Answer:
Explanation:
during electron transport, energy is used to pump hydrogen ions across the mitochondrial inner membrane, from the matrix into the intermembrane space. A chemiosmotic gradient causes hydrogen ions to flow back across the mitochondrial membrane into the matrix through ATP synthase, producing ATP
Mimosa pudica is an example for ____
Answer:
Your answer is- Irritability
Irritability is the ability of an organism to respond to the external stimulus. The organism exhibit movement on receiving the stimulus from the internal or the external environment. The most common example of irritability is shown by the Mimosa plant which folds the leaflets when touched. The stimulus is passed on to the entire branch and then whole plant and all the leaflets close.
Explanation:
Hope this helps u
Crown me as brainliest
I will give out 90 points. Please answer!!
DNA Polymerase is used to (select all that apply) the answer is not just “synthesize the daughter strand)
-“read” the template strand
-synthesize the daughter strand
-unzip the template strand
-cut the template strand
-cut the daughter strand
IS THE ANSWER 2-5 and not 1??
DNA polymerase synthesizes the daughter strand along with reading the template strand. The correct option is A and B.
What is DNA polymerase?The primary enzyme that catalyzes the linking of the 3′ hydroxyl group of the end nucleotide to the 5′ phosphate of the nucleotide to be added is DNA polymerase.
DNA polymerase synthesizes the daughter strand along with reading the template strand.
Thus, the correct options are A and B.
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What is the process of monomers being chained together called?
A. Polymers
B. Polymerization
C. Monomer regeneration
D. Duplication
Answer: Polymerization
Explanation: The linking up of monomers is called polymerization. It is the long chains that give polymers their unique properties.
The increase of carbon dioxide in the atmosphere is contributing to a global rise in Earth's temperature, known as.....________ & ________
Answer:
Water vapor and clouds are the major contributors to Earth's greenhouse effect, but a new atmosphere-ocean climate modeling study shows that the planet's temperature ultimately depends on the atmospheric level of carbon dioxide
Explanation:
What type of research method would best answer the question “How many rivers in Florida have nitrate pollution in them?”
Answer:
Field study
Explanation:
I took the quiz and got it right. Hope this helps :)
The type of research method that would best answer the given question is field study. The correct option is C.
What is field study?Field studies are research activities that take place outside of your office or lab, in the context of the user.
There are numerous field-study methods and activities to choose from. Field studies also differ significantly in terms of how the researcher interacts (or does not interact) with participants.
Field research is a qualitative research method that involves observing and interacting with people in their natural settings in order to understand and interpret the social interactions of groups of people, communities, and society.
Field studies provide students with first-hand experiences that promote critical thinking, long-term retention, transferability, positive attitudes toward science, appreciation for nature, and increased scientific curiosity.
Field study is the type of research method that would best answer the given question "How many rivers in Florida have nitrate pollution in them?”
Thus, the correct option is C.
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Your question seems incomplete, the missing options are:
A. relational study
B. cause and effect study
C. field study
Which type of rock did the geologist most likely find? gneiss limestone marble sandstone
Answer:
Limestome
Explanation:
I took the test u welcome
Answer:
B
Explanation:
which of the following statements best explains why plants wilt
Answer:
needs more context bro
SCIENCE HELP! WILL GIVE BRAINLIEST
Answer:
Sucks to suck
Explanation:
hehe
sodium (NA) and water (H2O undergo a chemical reaction that produces sodium hydroxide (NaOH) and hydrogen gas (H2). Which equation represents this chemical reaction
Answer:
There are no options in this question, however, the equation can be provided. The answer is:
2Na + 2H2O --> 2NaOH + H2
Explanation:
This question is deacribing the equation between sodium (Na) and water (H2O) to produce sodium hydroxide (NaOH) and hydrogen gas (H2). The equation originally is as follows:
Na + H2O --> NaOH + H2
From the above equation, one would notice that it is not balanced because the number of atoms of each element is not the same on both sides of the equation. Hence, to balance the equation, a coefficient is used to make sure the same number of atoms of each element are on both sides.
We have;
2Na + 2H2O --> 2NaOH + H2
Compare the thickness of the right and left ventricles. Which ventricle is thicker the right or left. Explain the difference.
Answer:
When comparing the thickness of the heart's ventricles, the left one is thicker than the right one, because it must generate more pressure to pump blood throughout the body.
Explanation:
In the human heart, the right ventricle is in charge of pumping the blood to the lungs —initiating the minor circuit of the circulation— while the left ventricle is in charge of pumping the blood to the whole body.
To fulfill its function, each ventricle has a specific thickness in its walls, the left one being thicker than the right one.
The right ventricle is a chamber that handles more volume than pressure, and its walls are thinner because it does not require much pressure to pump the blood to the lungs. The left ventricle has a thicker muscular wall because it is a chamber that must generate a high pumping pressure, so its contraction force must be greater.The structure of the myocardium in the heart is what allows each chamber to fulfill its function adequately.
( please, do not comment if you do not know the answer, I will give Brianlist ) Please complete the following:
1. You and Tim, who is larger than you are outside with a wagon. Tim (the bigger person) gets in the wagon and you (the smaller one) pull it. As you pull
it, you accelerate until you reach a comfortable velocity. Then you stop and switch places with Tim. Tim now pulls you in the wagon, accelerating
from a stop to a comfortable velocity. Now, Tim may be bigger than you, but you have been working out and are just as strong as Tim, so the force
that Tim uses to pull the wagon is the same force that you used. You both pull with the exact same amount of force. Who was riding in the wagon
when it had the greatest acceleration during start up? Why? Use Newton's second law to explain.
2. Now Sara comes along, and she is the exact same size as you. However, she is even stronger than you! When she pulls you in the wagon, she pulls
with a greater force than when you pull her. Now who is in the wagon when it has the greatest acceleration? Explain, using Newton's second law.
Answer:
2. Sarah
Explanation:
because she is stronger, she is able to pull faster and easier because of the amount of weight she can carry vs the amount of weight you can carry. Although you are the same height, she has more muscle.
The product(s) of photosynthesis is/are:
O carbon dioxide
O carbon dioxide and glucose
O water
O glucose and oxygen
What are the organs of the nervous system?
A. brain, spinal cord, nerves
B. brain, heart , lungs
C. skin, hair, nails
D. lungs, blood vessels, arteries
Answer:
A
Explanation:
I stuided this last year and what I found out was the nerves send a message to the brain and I forgot why the spinal cord is in there but I just know it is.
Transcription is the process of copying a gene to create
Transcription is the process of copying a gene to create an RNA molecule
How does mitochondria help the a sperm cell to carry out its function
Answer:
The acrosome in the head contains enzymes so that a sperm can penetrate an egg. The middle piece is packed with mitochondria to release energy needed to swim and fertilise the egg.
Explanation:
What are two types of fermentation
Answer:
There are two types of fermentation: alcoholic fermentation and lactic acid fermentation.
Explanation: branilest plz
Cross section of the layers of the Earth, labeled 1 through 5 starting with the crust and ending with the core.
Use the drop-down menus to select the part of Earth best described by each phrase.
May help create Earth’s magnetic field
Can be thick or thin, depending on location
Made of molten metal
The location of Earth’s plates
Answer:
4
1
4
1
Explanation:
im always right :)
Answer:
4
1
4
1
Explanation: taking the assignment now:)
Explain why reintroducing wolves changed the ecosystem of the park?
WILL GIVE BRAINLIEST
Answer:
After 70 years without wolves, the reintroduction caused unanticipated change in Yellowstone's ecosystem and even its physical geography. ... The healthier bear population then killed more elk, contributing to the cycle the wolves started.
Explanation:
The reintroduction of wolves had several positive effects on the ecosystem.
What are the effects of reintroduction of wolves?The reintroduction of wolves caused a trophic cascade of events in the Yellowstone national park. This resulted in an increase in the population of beavers and also brought back several forms of vegetation.
The killing of wolves in the 1930s resulted in the shifting of predatory pressure on the elk population. But, they were much less active in winter. They browsed on cottonwood plants and aspen.
But now, the predatory pressure came back on wolves. This keeps the elks more active. This also resulted in an increase in vegetation.
The reintroduction of wolves also resulted in the increase in the population of beavers because of the recovery of willow strands reflourished due to the activeness of the elk.
Therefore, the reintroduction of the wolf population greatly impacted the ecosystem of the Yellowstone national park causing a ripple of positive effects.
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The picture shows fruit produced by two parents and fruit produced by one of their offspring.
Which of these best describes this inheritance pattern?
codominance because he fruit color of the offspring is an intermediate form of the parents’ fruit color
codominance because both parents’ colors are expressed in the offspring
incomplete dominance because both parents’ colors are both visible in the offspring
incomplete dominance because the fruit color of the offspring is an intermediate form of the parents’ fruit color
Answer:
d
Explanation:
I got it right on edge
Answer:
its D
Explanation:
because if one is Black and white the offspring would be Gray
HOPE THIS HELPS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
How can fracking impact water quality? (1 point)
A.Methane leaks make the water supply flammable.
B.Power pumps drain water from rivers and reservoirs.
C.The heated water becomes unfit for consumption.
D.Smelting releases toxic metals into the water supply.
Answer:
a
Explanation:
Due to the current relationship with groundwater and surface water, fracturing fluids like return fluids might pose a risk to both, hence option a is correct.
What is fracking?It's possible for water to get contaminated during fracking owing to chemicals that are accidentally spilled,in the water during the migration of thermogenic methane gas.
Since a hydraulic fracture might intercept a natural fracture, such as a geological fault, and be connected to the surface, this presents another potential source of pollution.
Therefore, presence in the subsoil may be encouraged during the fracturing process, which may enhance the incidence of chemical reactions and the production of new contaminating substances, hence option a is correct.
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18. A solution of CaCl2is_?__ [ A. acidic
B. basic
N. neutral]
what do bacteria cells and human cells have in common
Answer:
They have cytoplasm, a plasma membrane, and ribosomes.
Explanation:
The exchange of carbon dioxide and oxygen in the alveoli of the lungs is an example of what?
C)passive transport
Answer:
Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the gas in the alveoli and the blood in the capillaries in the lungs.
Why is secondary succession less successful in tropical rainforests?
What is the difference between glucose and ATP?
Glucose is a storable form of energy, while ATP is a usable form of energy.
ATP is a storable form of energy, while glucose is a usable form of energy.
ATP is only a usable form of energy, but glucose can be used and stored.
Glucose is only a storable form of energy, but ATP can be used and stored.
The main difference between glucose and ATP is that Glucose is a storable form of energy, while ATP is a usable form of energy.
Glucose is storable form of energy because it can't be used as energy until it can be broken down by mitochondria of the cell while on the other hand, ATP is the usable form of energy which we can get from the break down of glucose molecules. Our cells use ATP as a fuel to do various activities of the cell so we can conclude that in glucose, energy is present in stored form whereas ATP is used as energy in various activities.
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The unique shape that a mineral grows into is called its…
Answer:
Crystal form refers to the geometric shape of mineral crystals. Crystal form is caused by the symmetrical, three-dimensional arrangement of atoms inside the mineral.
Explanation:
