There are small individual fibres in the muscles, known as musclular fibres or muscle fibers that iat the same time are formed by myofibrils.
The most common and accepted theory of how muscles contract is the sliding filament theory:
The theory says that neurons send signals to the muscle fibres, and, inside these, actin and myosin bind with each-other, contracting themselves using ATP as an energy source. That is a simple way of describing how muscle contraction occurs.
The image down below may help you understand the sliding filament concept a bit better.
Hope it helped,
Happy homework/ study/ exam!
Answer:
If you place an animal or a plant cell in a hypertonic solution, the cell shrinks, because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). ... A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.
Explanation:
With some missing context, I can partially answer this question. It was sometime recent, seeing that the body was still trying to function as if it was alive(blood is still flowing), The internal body temperature was 93ºF, 5º Lower than the regular temperature of 98º
I hope this helps, I am not entirely sure what the answer is but I was able to give you some background and biological evidence
Answer:
Land plants are multicellular organisms that can be distinguished from other living things by a number of characteristics: They make their own food. Plants are photosynthetic and contain a green pigment called chlorophyll, which enables plants to convert energy from the sun into food. Plants store their food as starch.
Explanation:
You may need to reword it a bit. This should be right.
