Answer the following question given this paragraph: Q: Like simple hormone pathways, hormone cascade pathways typically involve what kind of feedback? Choices: - effective - positive - neutral - negative A:
negative
Answer the following question given this paragraph: Figure 3.19 A phospholipid is a molecule with two fatty acids and a modified phosphate group attached to a glycerol backbone. The phosphate may be modified by the addition of charged or polar chemical groups. Two chemical groups that may modify the phosphate, choline and serine, are shown here. Both choline and serine attach to the phosphate group at the position labeled R via the hydroxyl group indicated in green. Q: What is a molecule with two fatty acids and a modified phosphate group attached to a glycerol backbone? Choices: - carbohydrate - polymer - amino acid - phospholipid A:
phospholipid
Q: Answer the following question given this paragraph: Each kidney has more than a million nephrons, which are the structural and functional units of the kidney. Each nephron is like a tiny filtering plant. Q: What are the structural and functional units of the kidney called? Choices: - Ions - caldrons - aeons - nephrons A:
A: nephrons
Question: Answer the following question given this paragraph: Hormones, chemical messengers used to communicate between cells, are important in regulating digestion. Q: What are the chemical messengers used to communicate between cells? Choices: - membranes - peptides - neurons - hormones A:
Answer: hormones
*Question*
Answer the following question given this paragraph: Some Eukarya are also single-celled, but many are multicellular. Some have a cell wall; others do not. However, the cells of all Eukarya have a nucleus and other organelles. Q: The cells of all eukarya have a what? Choices: - chloroplast - epidermis - necrosis - nucleus A:
**Answer**
nucleus
(Question)
Answer the following question given this paragraph: All living things depend on their environment to supply them with what they need, including food, water, and shelter. Their environment consists of physical factorssuch as soil, air, and temperatureand also of other organisms. An organism is an individual living thing. Many living things interact with other organisms in their environment. In fact, they may need other organisms in order to survive. This is known as interdependence . For example, living things that cannot make their own food must eat other organisms for food. Other interactions between living things include symbiosis and competition. Q: What is the term for when organisms need other organisms to survive? Choices: - intradependence - realization - coexistence - interdependence A:
(Answer)
interdependence