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borishaifa [10]
2 years ago
10

What can we see with electron microscopes that we can't with light microscopes?

Biology
1 answer:
allsm [11]2 years ago
4 0
You can see the structures within the organelles of the cells (e.g the structure within a mitochondria) with an electron microscope as it has a much higher resolution than light microscopes.
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What will be the long-term consequences if the hunts of baby deer continue? If they stop?
grin007 [14]

Answer:

If people continue to kill baby deer then the population will start to decrease and if they stop killing them then the deer population will increase. If the deer population increase than that won't be a good thing for the environment because they will then be everywhere. Plus where there is prey there is predator so the predators of the deer will also increase in population.

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2 years ago
The scientific theory of _________ states that populations change over time in response to changes in the environment.
ad-work [718]
Hello there ^ _ ^

I believe the answer is : A - Evolution

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3 years ago
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Describe the process of skeletal muscle contraction by assembling the following 10 events in the proper order in paragraph form.
balu736 [363]

5) muscle fiber is stimulated at the neuromuscular junction triggering an action potential  

7) APs travel down the T-tubules to the sarcoplasmic reticulum  

Released acetylcholine (due to action potential within motor neuron) from the motor neuron initiates depolarisation within the sarcolemma, which is spread through the muscle fibre via T tubules.

8) in response to an AP, calcium ions are released into the cytosol/space around the myofibrils

Depolarisation causes the sarcoplasmic reticulum to release calcium ions necessary for the contraction

3) calcium ions bind to the T and T system

1) T and T system undergoes a conformational change, exposing the myosin binding sites on actin  

6) myosin head/cross-bridges bind to actin

The binding sites for the myosin heads located on actin, are covered by a blocking complex (troponin and tropomyosin) that can be unblocked by the calcium binding

2) myosin heads/cross bridges bind to actin and flex, shortening the sacromere  

4) actin filaments are pulled toward the center of the sacromere, shortening the muscle fiber  

As the individual sarcomeres become shorten the muscle fibres as a whole contracts

10) myosin head continues to attach, flex, release, extend, and reattach as long as calcium ions are present

9) calcium ions actively transported into the sarcoplasmic reticulum  

Relaxation of a muscle fiber occurs when a Ca ions are pumped back into the sarcoplasmic reticulum .

3 0
3 years ago
HELP RIGHT NOW PLZZZZ
ser-zykov [4K]
I think it’s 24 not sure but maby
3 0
3 years ago
Which of the following is the largest biome on earth?
AURORKA [14]

Answer:

taiga

Explanation:

taiga which is also known as coniferous or boreal forest . Also it is the largest terrestrial biome on the earth

4 0
3 years ago
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