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Tcecarenko [31]
3 years ago
12

Question 8 of 30

Biology
1 answer:
beks73 [17]3 years ago
4 0

Answer is A . Nitrogen i think because it express of genetic information

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Place the following in the correct order _____ Actin and myosin form links _____ Acetylcholine crosses the gap at the neuromuscu
kicyunya [14]

Answer:

The correct oder is given below:

Explanation:

The oder of the events during muscle conratction as as follows:

  1. Acetylcholine crosses the gap at the neuromuscular junction.
  2. Calcium is released into the sarcoplasm.
  3. Actin and myosin form links.
  4. Myosin cross-bridges pull actin filaments inward.
8 0
4 years ago
A researcher examined the response of dandelions to herbivory by rabbits. She finds that in a greenhouse with no rabbits, there
vazorg [7]

Answer:

b.

Explanation:

Based on the information provided within the question it can be said that from this info the researcher can conclude that Dandelion seed number is a constitutive defensive response to rabbit herbivory. This is mainly due to the fact that Dandelions that have been eaten by the rabbits have produced more seeds, meaning that the Dandelions defense mechanism produces more seeds when attacked in order to prevent the flower's extinction.

4 0
3 years ago
During photosynthesis, plants incorporate carbon dioxide into sugars and other organic compounds. The ratio of 12CO2 to 14CO2 in
natima [27]

Answer:

True

Explanation:

During photosynthesis, plant make use of atmospheric carbon dioxide to produce sugars and other organic components, which is given by

6CO2 + 6H2O ------> C6H12O6 + 6O2

Where:

CO2 = carbon dioxide

C6H12O6= Sugar (glucose)

5 0
4 years ago
When a red blood cell is placed in a hypertonic solution, which will occur?
Sergeu [11.5K]
If a red blood cell is placed in a hypertonic solution, the cell would shrink.

Hypertonic solution means that the solution has a lower water potential than the other side (which is the cell's cytoplasm in this case), and by that, water molecules would have a tendency to flow from a region of higher water potential to a region of lower water potential. This movement of water molecules is called osmosis. But note that a semi-permeable membrane (a membrane which can decide what substances can go in and out, the cell membrane is an example) has to be present in osmosis, or else the movement may be regarded as diffusion.

As the water molecules flowed away from the red blood cell cytoplasm, the cell loss so much water that the membrane has nothing much to hold and thus the cell shrinks. 
5 0
3 years ago
What is the purpose of an antibody? Group of answer choices to stick to an antigen, alerting your body of the presence of a fore
Alexandra [31]

Answer: Antibodies are proteins that are found in the body on the surface of red blood cells and in the blood plasma ,they are very sensitive to foreign bodies and bad viruses and bacteria,when they notice the presence of anything that poses harm or a threat to the body system,they track it down and fight/destroy it.

Antibodies also play crucial role in hemostasis(stoppage of bleeding) in the sense that when the body is wounded or when someone gets a cut antibodies that are found in the plasma and some substances found in the platelets are released to play a role in sending signal to the blood clotting factors in the blood to be released to arrest the bleeding and prevent the person from bleeding out their entire blood.

5 0
4 years ago
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