Q: Answer the following question given this paragraph: Testosterone is the main sex hormone in males. Hormones are chemicals that control many body processes. Testosterone has two major roles:. Q: What is the main sex hormone in males called? Choices: - estrogen - caffeine - methane - testosterone A:
A: testosterone

Q: Answer the following question given this paragraph: Which of the following statements about the anatomy of a mollusk is false? a. Mollusks have a radula for grinding food. A digestive gland is connected to the stomach. The tissue beneath the shell is called the mantle. The digestive system includes a gizzard, a stomach, a digestive gland, and the intestine. Mollusks have a muscular foot, which is used for locomotion and anchorage, and varies in shape and function, depending on the type of mollusk under study. In shelled mollusks, this foot is usually the same size as the opening of the shell. The foot is a retractable as well as an extendable organ. The foot is the ventral-most organ, whereas the mantle is the limiting dorsal organ. Mollusks are eucoelomate, but the coelomic cavity is restricted to a cavity around the heart in adult animals. The mantle cavity develops independently of the coelomic cavity. The visceral mass is present above the foot, in the visceral hump. This includes digestive, nervous, excretory, reproductive, and respiratory systems. Mollusk species that are exclusively aquatic have gills for respiration, whereas some terrestrial species have lungs for respiration. Additionally, a tongue-like organ called a radula, which bears chitinous tooth-like. Q: What do aquatic mollusk species use for respiration? Choices: - lungs - phototropism - pores - gills A:
A: gills

Q: Answer the following question given this paragraph: Geothermal energy uses heat from magma within the Earth to heat homes or produce steam that turns turbines. Q: What kind of energy used heat from magma within the earth to heat homes or produce steam that turns turbines? Choices: - thermal energy - robust energy - renewable energy - geothermal energy A:
A: geothermal energy

Q: Answer the following question given this paragraph: Vertebrates have an adaptive immune system. The immune system is the organ system that defends the body from pathogens and other causes of disease. Being adaptive means that the immune system can learn to recognize specific pathogens. Then it can produce tailor-made chemicals called antibodies to attack them. This allows the immune system to launch a rapid attack whenever the pathogens invade the body again. Q: Which organ system defends the body from pathogens and other causes of disease? Choices: - digestion system - nervous system - respiratory system - immune system A:
A: immune system