Answer the following question given this paragraph: Q: Through a succession of mitotic cell divisions, what gives rise to a large number of cells? Choices: - condensation - air - cytoplasm - zygote A:
zygote
(Question)
Answer the following question given this paragraph: Solar energy travels in photons. Photons travel in waves, which make up electromagnetic radiation. Q: Solar energy travels in what? Choices: - ions - electrons - neurons - photons A:
(Answer)
photons
Ques: Answer the following question given this paragraph: If you are a typical teenager, you like to eat. For your body to break down, absorb and spread the nutrients from your food throughout your body, your digestive system and endocrine system need to work together. The endocrine system sends hormones around your body to communicate between cells. Essentially, hormones are chemical messenger molecules. Q: What are the "chemical messenger" molecules used by the endocrine system? Choices: - acids - axons - enzymes - hormones A:
Ans: hormones
(Q).
Answer the following question given this paragraph: An integrated circuit (microchip) is an electronic component that consists of many other electronic components such as transistors. Integrated circuits are used in virtually all modern electronic devices to carry out specific tasks. Q: What is the term for an electronic component that consists of many other electronic components? Choices: - electrical current - creating circuit - networks - integrated circuit A:
(A).
integrated circuit
Ques:Answer the following question given this paragraph: The digestive system of birds is unique, with a gizzard that contains swallowed stones for grinding food. Birds do not have teeth. What do you think the stones do? They help them digest their food. Defining characteristics of modern birds also include:. Q: What does the gizzard in birds contain that allows them to grind food? Choices: - acid - bile - teeth - swallowed stones A:

Ans:swallowed stones
Question: Answer the following question given this paragraph: So far we have focused on traits due to one gene or several genes. But what about many genes? 100s or 1000s of genes? What would happen if an entire chromosome were missing or duplicated? What if a human had only 45 chromosomes? Or 47? This real possibility is usually due to mistakes during meiosis; the chromosomes do not fully separate from each other during sperm or egg formation. Specifically, nondisjunction is the failure of replicated chromosomes to separate during anaphase II. If a zygote forms from a gamete lacking a chromosome, a viable embryo cannot be produced. Most human abnormal chromosome numbers result in the death of the developing embryo, often before a woman even realizes she is pregnant. Occasionally, a zygote with an extra chromosome can become a viable embryo and develop. Q: If a human only has 45 chromosomes it is most likely due to a mistake during what? Choices: - testis - mitosis - plexus - meiosis A:
Answer:
meiosis