Answer: B) II, IV, V
Explanation:
II, IV, V Sexual reproduction involves both parents. Chromosomes are passed to offspring in sex cells, egg and sperm. Offspring are not identical to either parent.
Answer:
d)organism,system,organ, tissue is from smallest to largest
A mammals need for oxygen effects their heart rate because there could be some cases where they're in lack of oxygen causing them to be literally ' out of breath ' . Like climbing a mountain. The higher you go the less oxygen.
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The answer is C because the retina is the part of your eye that transmitts the image to your brain
Answer:
Mammals evolved from a group of reptiles called the synapsids. These reptiles arose during the Pennsylvanian Period (310 to 275 million years ago). A branch of the synapsids called the therapsids appeared by the middle of the Permian Period (275 to 225 million years ago)
Explanation:
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