Requirements of Biological Systems
Showing posts with label Requirements of Biological Systems. Show all posts
Showing posts with label Requirements of Biological Systems. Show all posts

What best describes homeostasis?

08:59

What best describes homeostasis?



A - Attempting to reach the target level
B - Correcting for feedback errors
C - Maintenance of external conditions
D - Amplification away from the target cell
E - Maintenance of internal conditions


Answer: E - Maintenance of internal conditions

Why is negative feedback not a negative process?

08:59

Why is negative feedback not a negative process?



A - It allows for quick, amplified responses
B - It attempts to maintain an internal environment different from the external environment
C - It attempts to maintain an internal environment similar to the external environment
D - It causes fruit to ripen
E - It allows for ecotherms to increase heir body temperature


Answer: B - It attempts to maintain an internal environment different from the external environment

During birth, pressure from a baby's head triggers contraction, which push the baby creating more pressure, which triggers more contractions. This is an example of which type of feedback?

23:15

During birth, pressure from a baby's head triggers contraction, which push the baby creating more pressure, which triggers more contractions. This is an example of which type of feedback?




A - Homeostatic
B - Alternation
C - Positive
D - Cumulative
E - Negative


Answer: C - Positive

What best describes homeostasis?

23:15

What best describes homeostasis?



A - Maintaining external conditions that affect internal conditions
B - Changing internal conditions so that they match external conditions
C - Blocking molecules from being transported into or out of the cell
D - Facilitating diffusion through transport proteins
E - Maintaining constant, stable internal conditions


Answer: E - Maintaining constant, stable internal conditions
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