<span>Which of the following is a structure in some plants that produces male sex cells?
Answer: antheridium
</span><span>What is a life cycle that alternates between sexual and asexual reproduction called?
Answer: alternation of generations</span>
ATP is the main energy-providing molecule in living organisms.
Answer: The answer is A
Explanation: The acetabulum is a concave area of the pelvis that forms a socket into which the femoral head fits. Together they form the hip joint.
Answer: They would not survive because they have already adapted to the humid environment of the rain forest and could not adapt fast enough to survive the frigid climate of the artic.
Explanation:
Carbon dioxide (chemical formula CO2) is a colorless and odorless gas that is vital to life on Earth. This naturally occurring chemical compound is made up of a carbon atom contently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent (400 ppm) by volume.Natural sources include volcanoes, hot springs and geysers, and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers and also in seawater. It is present in deposits of petroleum and natural gas.
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