A major difference between a plant cell and an animal cell is
A. plant cells do not reproduce.
B. plant cells do not have cell walls.
C. plant cells
... [Show More] have chloroplasts.
D. plant cells die after a year. - correct answer C.
Plant cells do reproduce and they do have cell walls. Plant cells do not necessarily die af ter one
year. Plant cells do contain chloroplasts, and an imal cells do not. The correct an swer is
therefore choice C.
Sponges, worms, insects, and amphibians belong to which of the following kingdoms?
A. Monera
B. Protista
C. Plantae
D. Animalia - correct answer D .
All these creatures are animals and are part of the kingdom Animalia.
What name is given to the global ecosystem?
A. Atmosphere
B. Hydrosphere
C. Lithosphere
D. Biosphere - correct answer D.
An ecosystem is the collection of organisms, living and nonliving, along with the factors that
affect them such as heat, light, landforms, gases, and the like. The atmosphere (choice A) is the
air that surrounds Earth, the hydrosphere (choice B) is the water found in and on Earth, and the
lithosphere (choice C) is the land on Earth. Biosphere is the name given to the global
ecosystem. Choice D is the correct answer.
Which of the following parts of a plant is (are) not digestible by humans?
A. Cell wall
B. Stomata
C. Root hairs
D. Tap root - correct answer A.
Stomata (choice B) are parts of a leaf and should be digestible in most plants. Root hairs (choice
C) and roots (choice D) should be digestible as well. The cell wall (choice A) is made of cellulose,
which is not digestible by humans. Choice A is the correct answer.
In fish, respiration takes place in which of the following body parts?
A. Gills
B. Spinal cord
C. Tail
D. Circulatory system - correct answer A.
The process of respiration takes place in the gills of a fish. Choice A is the correct answer.
If a seed is planted upside down, the roots will still grow downward because of which of the
following plant responses?
A. Respiration
B. Gravitropism
C. Osmosis
D. Turgidity - correct answer B. [Show Less]