Cytokinesis is the final stage of cell division in what items?
Options:
- (A) infected
- (B) insects
- (C) animals
- (D) Plants.
- (E) fungi
- (F) plants
- (G) food
- (H) parasites
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Let's think first: Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes. All plants are eukaryotes. Cytokinesis is the final stage of cell division in plants.... So the answer is [(D)]

What has a relatively complex circulatory system with a three-chambered heart?
Options:
- (A) frogs
- (B) a fish
- (C) salmon
- (D) alpacas
- (E) Man
- (F) Birds
- (G) sharks
- (H) pan
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Let's think first: Amphibians have a relatively complex circulatory system with a three-chambered heart. All frogs are amphibians. Frogs have a relatively complex circulatory system with a three-chambered heart.... So the answer is [(A)]

Many plants go dormant during the
Options:
- (A) heat or cold
- (B) earth's revolving
- (C) autumnal equinox
- (D) colder and wetter
- (E) It helps them survive
- (F) cloudy and rainy weather
- (G) Plant growth is reduced
- (H) fire conditions
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Let's think first: Many plants respond to the days growing shorter in the fall by going dormant. After the autumnal equinox, days gradually shorten in the Northern Hemisphere. Many plants respond to the autumnal equinox by going dormant.... So the answer is [(C)]

What don't arthropods have?
Options:
- (A) an exoskeleton
- (B) legs
- (C) Bodily water
- (D) Damaged hearing
- (E) kinetic energy
- (F) a backbone
- (G) Energy
- (H) backs
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Let's think first: Arthropods are the largest phylum of invertebrates. Invertebrates are animals without a backbone. Arthropods are animals without a backbone.... So the answer is [(F)]

There are what who study how animals behave in their natural environment.
Options:
- (A) infants
- (B) heat or cold
- (C) insects
- (D) sensory neurons
- (E) scientists
- (F) people
- (G) humans
- (H) reptiles
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Let's think first: Ethologists usually study how animals behave in their natural environment. Ethologists are scientists who study animals in their natural habitats. There are scientists who study how animals behave in their natural environment.... So the answer is [(E)]

Leaves lack what?
Options:
- (A) heat energy
- (B) heat or cold
- (C) permineralization
- (D) scattered light
- (E) secondary meristem
- (F) Plant growth is reduced
- (G) Chlorophyll
- (H) epidermis and dermis
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Let's think first: Secondary meristem is located within and around the vascular tissues. Leaves lack Vascular Tissues. Leaves lack secondary meristem.... So the answer is [(E)]