Q: What do you call the membrane-bounded droplets that have some properties of cells? Read this paragraph and choose the correct option from the provided answers: Choices: - rods - membranes. - sporozoans - protocells A:
protocells

Q: The adult cells that form the butterfly begin growing in what developmental stage? Read this paragraph and choose the correct option from the provided answers: Choices: - caterpillar - pupa - mitochondria - embryo A:
embryo

Q: Q: Of the nine classes of vertebrates, how many are fish? Read this paragraph and choose the correct option from the provided answers: Of course. But what type? Of the nine classes of vertebrates, five are fish. Each of the five classes has distinguishing characteristics that allow members to be classified appropriately. Stingray are cartilaginous fish, related to sharks. Choices: - one - four - three - five A:
A: five

Question: Q: Where does a baby travel to after leaving the uterus? Read this paragraph and choose the correct option from the provided answers: Some processes in the body are regulated by positive feedback. Positive feedback is when a response to an event increases the likelihood of the event to continue. An example of positive feedback is milk production in nursing mothers. As the baby drinks her mother's milk, the hormone prolactin, a chemical signal, is released. The more the baby suckles, the more prolactin is released, which causes more milk to be produced. Other examples of positive feedback include contractions during childbirth. When constrictions in the uterus push a baby into the birth canal, additional contractions occur. Choices: - tissue canal - ear canal - nasal canal - birth canal A:
Answer: birth canal

*Question*
Q: What term is used for any combination of two or more atoms? Read this paragraph and choose the correct option from the provided answers: A molecule is any combination of two or more atoms. The oxygen in the air we breathe is two oxygen atoms connected by a chemical bond to form O 2 , or molecular oxygen. A carbon dioxide molecule is a combination of one carbon atom and two oxygen atoms, CO 2 . Because carbon dioxide includes two different elements, it is a compound as well as a molecule. Choices: - element - synthesis - nucleus - molecule A:
**Answer**
molecule

*Question*
Q: The binding of what helps eliminate antigens by phagocytosis and complement-mediated lysis Read this paragraph and choose the correct option from the provided answers: Choices: - proteins - amino acids - fats - antibodies A:
**Answer**
antibodies