Embryo should be the answer
<span>it occurs during meiosis and increases the chances of genetic variation in organisms</span>
Chemical factors: This is due to internal stimuli. Changes in the blood such as decrease in O2, increase in CO2 and decrease in PH cause impulse in the carotid artery which stimulates the respiratory centers in the medulla and cause breathing.
Mechanical factors: also called external stimuli. Compression of the fetal chest during delivery forces small amount of lung fluid out of the lungs. This increase in pressure in the chest draws air into the lungs.
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ANSWER:</h2>
Glycogen and triglycerides
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EXPLANATION:</h2>
Living organisms employ two main kinds of energy storage. Energy-rich molecules such as glycogen and triglycerides stock energy in the formation of covalent chemical bonds. Cells integrate such molecules and store them for the later discharge of the energy.
Answer:
organisms, radial symmetry is useful because the animal can just "sit down" and grab food or detect threats from all directions.
Explanation:
