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guajiro [1.7K]
3 years ago
8

In all muscle cells, two kinds of protein filaments slide past each other to shorten the muscle cell and generate force. what br

oad theme of biology does muscle illustrate?
Biology
1 answer:
Sav [38]3 years ago
8 0
The broad theme of biology which muscle illustrates is STRUCTURE AND FUNCTION.
Different cells in the body have specific components which help them to carry out their functions. The structure of an organ usually determine the kind of work and function it will perform.<span />
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When you bring any of your fingers in contact with your thumb, this movement is called __________.when you bring any of your fin
vladimir2022 [97]

Answer:

Opposition

Explanation:

Opposition is the type of movement that is only for the hands. Opposition is them movement where you bring your finger/s in contact with your thumb. When you put it back to its anatomical position, which is beside the index finger (pointing finger) this is called <em>reposition.</em>

Retraction occurs in the scapula (Shoulder blades) and mandible (jaw). Dorsiflexion you see that happen in your foot. When you bring your toes closer to the shin. Supination is more on the forearm and foot, where you rotate it so your palms are facing forward (sole facing the other ankle for feet). Flexion is the movement of body parts where you bring them closer to each other at a joint (the angle between the two parts are lessened). Like when you bend your elbows to "flex" muscles.

8 0
3 years ago
When did oxygen begin to accumulate in the atmosphere
oee [108]

Answer:

2.33 billion years ago.

Explanation:

Hope this helps <3

4 0
2 years ago
Read 2 more answers
Which organism has a better chance of leaving a fossil a jellyfish or a bony fish?
lara [203]
<span>Fossils, or the fossilized remains of an animal, tend to be bones which are made of much denser materials than flesh. Since a jellyfish has no bones, a bony fish is more likely to leave a fossil.</span>
4 0
3 years ago
How does the immune system function?
professor190 [17]

Answer:

Immune system of the body helps in fighting with the infectious agents that are foreign for the body. So the immune system protects us from infection.

When any foreign substance(antigen) comes in the body B-lymphocyte recognize it by binding the antigen through its receptor. After recognizing the antigen, B cell divides into antibody-producing plasma cell and memory cell.

Antibodies produced by plasma cells help in destroying the antigen by getting the antigen recognized by phagocytic cells or by complement activation.

B cells are antigen-presenting cell which present antigen to T cell and then T cell activates and produce chemicals that kill the antigen. Therefore the immune system has many immune cells that activate when an antigen comes in the body. This is how the immune system functions.

3 0
3 years ago
How many freshwater snails are left in the world?
ale4655 [162]

Answer:

about 250

Explanation:

4 0
3 years ago
Read 2 more answers
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