Sperm must be deposited and transported to the site of fertilization. Ovulation must occur and the egg must be "picked up" by the tube. Union between the sperm and egg must result. The embryo must implant and begin to grow in the uterus.
<span>The monomers used to synthesize proteins are called amino acids</span>
Prokaryotes lack a defined nucleus<span> (which is where DNA and RNA are stored in</span>eukaryotic cells<span>), </span>mitochondria<span>, </span>ER<span>, </span>golgi<span> apparatus, and so on. In addition to the lack of organelles, </span>prokaryotic cells<span> also lack a </span>cytoskeleton<span>. Does this help?</span>
Answer:
The answer is B.
Explanation:
The answer is B. Biotic factor because biotic factor means living things.
The ability of a nerve and muscle cell to receive and respond to a stimulus by changing its membrane potential is called Excitability.
<h3>Nerve cell</h3>
- A nerve cell is an electrically excitable cell that communicates with other cells through specialized connections called synapses.
A group of connected neurons is called a neural circuit.
<h3>Muscle cell</h3>
- A muscle cell refers to either a cardiac muscle cell, or a smooth muscle cell as these are both small cells.
Learn more about nerve cell:
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