What makes up the basic structure and function of all organisms found on earth?
Options:
- (A) organs
- (B) cells
- (C) plants
- (D) fungi
- (E) bone structure
- (F) trees
- (G) Earth molecules
- (H) Fat
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Let's think first: Cells are the basic units of the structure and function of living things. An organism is a living thing. Cells are the basic units of the structure and function of organisms.... So the answer is [(B)]

What are the form of the genetic material of a cell during mitosis?
Options:
- (A) chromosomes
- (B) graptolites
- (C) fur and fat
- (D) peachleaf willow
- (E) pollen
- (F) Leptospirosis
- (G) animals
- (H) it can be seen
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Let's think first: Chromosomes are the form of the genetic material of a cell during cell division. Mitosis is cell division. Chromosomes are the form of the genetic material of a cell during mitosis.... So the answer is [(A)]

What increases the rate of all the chemical processes in living organism cells?
Options:
- (A) Thyroid hormones
- (B) Blood Cells
- (C) Hair Follicles
- (D) oxidation reaction
- (E) Temperature changing
- (F) Skin Cells
- (G) temperature
- (H) heat energy
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Let's think first: Thyroid hormones increase the rate of metabolism in cells throughout the body. Metabolism is the sum of all the chemical processes in a living organism. Thyroid hormones increase the rate of all the chemical processes in living organism cells.... So the answer is [(A)]

Natural selection results in:
Options:
- (A) insects
- (B) root growth
- (C) Plants growth
- (D) Animal survival
- (E) animals
- (F) Plant reproduction
- (G) mammals
- (H) specialization
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Let's think first: Specialization occurs when competing species evolve different adaptations. Adaptation is the result of natural selection. Specialization is a result of natural selection.... So the answer is [(H)]

What do ecosystems in nature need an influx of to remain feasible?
Options:
- (A) Continuous nuclear energy.
- (B) Natural lipids and proteins.
- (C) Energy.
- (D) rain
- (E) water
- (F) Energy
- (G) oxygen
- (H) Renewable Sunny Delight.
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Let's think first: Energy enters ecosystems in the form of sunlight or chemical compounds. Sunlight is the source of light in nature. Nature is comprised of many ecosystems which all depend upon energy.... So the answer is [(C)]

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)]