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givi [52]
3 years ago
5

Proteins in the cell membrane that identify the cell are called what

Biology
1 answer:
Vadim26 [7]3 years ago
3 0
The answer is membrane proteins.
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An astronomical unit is _____.
harina [27]
1. Distance from the Earth to the Sun
2. Hurt your hand from the reaction force (Newton's 3rd law is every action has an equal and opposite reaction)
3. The Earth to rotate slightly slower (I think)
Hope this helps :)
7 0
3 years ago
Read 2 more answers
In the food chain below, which is the producer?
KiRa [710]

Answer:

Could you attach an actual pdf of the food chain so we can see?  

The producer is whatever makes the food for the first organism in the chain.

Explanation:

5 0
3 years ago
Why are viruses hard to treat?
olga2289 [7]

Answer:

 Some viruses are hard to treat because  sometimes it’s not the virus that makes us sick; it’s our immune system.

Explanation:

4 0
2 years ago
Based on the general trend of your data, what happened to the heart rate and pulse amplitude immediately after exercise and then
Nata [24]

Exercise is very vital to the body,it a form of physical activity.the sole aim of excercise is to maintain stamina, flexibility,keep fit and be overly healthy and well.

When we excercise, our heart rate increases and then it returns to the normal rate when with rest,when we take a break.there is reflection of vasoconstriction in the fingers as the blood is shunted to only the exercising muscles because it is noted that the pulse amplitude of the heart is always small after excercise and and increases slowly during recovery.

The amount of blood the heart pumps in a minute,that is the amount of blood ejected by the contraction of the left ventricle into systemic circulation increases when we are exercising and resistance to blood flow by skeletal muscles decreases.the blood vessels will try to adapt to the condition (exercise) inorder to control blood flow and as well meet energy demands.

When we finish exercising,our body temperature increases which will inturn cause increase in the pulse rate and the blood in our body makes way to our skin,hands and legs inorder to clear off the energy that was generated by the body(muscles) during exercise

6 0
3 years ago
Explain how energy is transferred through a food web and food chain using the law of conservation of energy.
german
Energy is transferred with 90 percent less than the previous amount. For instance, producers start with 100 percent of energy considering they, well, produce the energy. Then, an herbivore comes and eats said producer, but only receives 10 percent of the energy. And so on and so forth as energy decreases as more consumers come along, which is why those at the top of the food web/chain typically eat more.

Hope this helps!
5 0
2 years ago
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