Answer:
A.
Explanation:
Because the trait undergoes a secondary loss; it has been there but it doesn't always appear in all generations.
Answer:
The given blank can be filled with a venule.
Explanation:
A small blood vessel in the microcirculation, which connects the capillary beds to the veins is known as the venules. Various venules combine to form a vein. The walls of a venule are formed of three layers, that is, the inner endothelium formed of squamous endothelial cells, a middle layer of elastic and muscle tissue, and an external layer formed of fibrous connective tissue.
The size of a venule ranges from 8 to 100 micrometers in diameter and are produced when capillaries come in close association. A venule refers to a small blood vessel that permits the deoxygenated blood high in carbon dioxide and waste products to return from capillary beds to the bigger blood vessels known as veins.
Answer:
There is little to no sunlight in the aphotic zone.
Explanation:
The aphotic zone is the deepest part of a lake/ocean, so no light is able to penetrate into those depths. Without light, photosynthetic organisms will not be able to undergo photosynthesis and will therefore not be able to survive.
Option A is correct. These ions then have interaction with actin and myosin filaments to purpose muscle contraction. The muscle groups stay in the shriveled state until adenosine triphosphate (ATP) binds to myosin, releasing the myosin and actin filaments from one another.
<h3>How long after a individual dies does rigor mortis set in?</h3>
Rigor mortis appears approximately two hours after dying in the muscle groups of the face, progresses to the limbs over the subsequent few hours, finishing between 6 to eight hours after death. [10] Rigor mortis then stays for some other 12 hours (till 24 hours after death) and then disappears.
<h3>Why does a body go into rigor mortis stiffen within 36 hours of death?</h3>
Rigor mortis is the 1/3 stage in which the muscle mass harden and become stiff, prompted with the aid of the lack of adenosine triphosphate (ATP), which gives electricity to the muscles. Rigor mortis is a extensive tool to any dying examination because it can narrow down the timeframe of death.
Learn more about myosin here:
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