Answer:
The correct answer will be option A - A-band.
Explanation:
The sarcomere is the repeating unit of a myofibril which extends between two z-lines. Under a microscope, a sarcomere can be divided into A- band which is composed of thick myosin only and I-band which consists of thin filament that is actin only.
When a muscle contract then actin and myosin comes in overlapping position due to which I-band shortens and between two z-lines and overlapped structure of thin actin filaments over thick myosin filaments (A-band) is seen.
Therefore, only A-band is seen between two z-lines in a contracted muscle thus, option A is the correct answer.
Answer: a. Its first capillary beds drain into arterioles.
Explanation:
The kidneys are the two filtering units in the bodies. Inside each kidney their is a filteration unit called as glomerulus. This includes a group of blood vessels called as capillaries. The blood enters the capillaries by afferent arterioles and leaves by the virtue of efferent arterioles.
Answer:
<u><em>The answer is</em></u>: <u>a. swordfish and potatoes.</u>
<u></u>
Explanation:
<em>The diet must be rich and varied that allows the pregnant woman and the baby to receive the essential nutrients that her body requires</em>.
<u><em>However, if it is important to try to avoid a series of foods that may carry certain hazards</em></u>: <u>Pike, swordfish, shark, king mackerel and bluefin tuna contain a high amount of mercury and heavy metals, so they are not recommended</u>,<em> unlike white fish and salmon that are very convenient.
</em>
<u><em>The answer is</em></u>: <u>a. swordfish and potatoes.</u>
Answer:
Direct transmission is the way something is transmitted directly, like a illness given to you by touch.
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Example 1:
I got coronavirus through direct transmission when I hugged my infected friend.
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Example 2:
When I had pink eye, I forgot to wash my hands after reaching to scratch my diseased eye, and held my sister's hand. She ended up getting pink eye too, because of the direct transmission.
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I hope this helps!
-No one
