Bio 242: Exam 4 Questions And Answers With Verified
Solutions Latest Update 2024/2025.
Which of the following is the most correct statement?
A) Hormones are only produces by endocrine glands
B) All hormones are lipid-soluble
C) All hormones are protein molecules
D) A specific hormone elicits the same response from all of its target cells
E) All hormones are carried by blood and other body fluids - ANSWER E) All hormones are
carried by blood and other body fluids
Decomposers:
A) Can extract energy from the waste products of other creatures
B) Usually are capable of photosynthesis
C) Include bacteria and various fungi
D) Only A and C are correct
E) Answers A, B, and C are all correct - ANSWER D) Only A and C are correct
A person has difficulty with higher brain functions, such as conscious thought and speech
comprehension, due to a little damage to a particular part of the brain called the:
Part of the automatic nervous system that is most active under ordinary, non-emergency conditions, is
the:
A) Parasympathetic Nervous System
B) Sympathetic Nervous System
C) Somatic Nervous System
D) Central Nervous System - ANSWER A) Parasympathetic Nervous System is most active
under ordinary, non-emergency conditions
, Sponges rely on a skeletal support system called:
A) Appendicular skeleton
B) Diffuse Skeleton
C) Endoskeleton
D) Exoskeleton
E) Hydrostatic Skeleton - ANSWER B) Sponges rely on a skeletal support system called diffuse
skeleton
The sentence "Two species that have exactly the same requirements cannot coexist indefinitely in the
same niche" refers to the:
A) Keystone competition principle
B) Law of diffuse competition
C) Relative abundance of all species on earth
D) Competitive exclusion principle
E) Lack of animal species on earth - ANSWER D) Competitive exclusion principle
Consider the following food chain: Grass - Grasshopper - Mouse - Snake - Hawk. How much energy
stored in the autotroph would be passed to the tertiary consumer?
A) 12.5%
B) 10%
C) 1%
D) 0.1%
E) 0.01% - ANSWER D) 0.1%
The receptor for most steroid hormones is initially found:
A) In the target cell's cytoplasm
B) floating free in the blood
C) In the brain
D) On the target cell's outer cell membrane
E) On the nucleus membrane - ANSWER D) On the target cell's outermembrane
A motor unit contains:
A) muscle fibers only
B) Nerve cell fibers only
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