How do hypotheses differ from theories?
A) Theories are more comprehensive than hypotheses.
B) Theories must be testable; hypotheses do not need to be testable.
C) Hypotheses are educated guesses, and theories are tentative explanations.
D) Hypotheses are derived from experimentation, whereas theories are derived from observation.
A
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Cats, dogs, and fish are consumers that have the ability to move actively from one place to another. These organisms
belong to the ____ kingdom
a. Animalia b. Bacteria c. Protist d. Fungi e. Plantae
Which statement correctly describes human chromosomes?
a. The haploid number is 22 b. Human gametes end up with two of each type of 23 chromosomes. c. There are 42 pairs of chromosomes. d. The diploid number is 46. e. Human gametes end up with one of each type of 22 chromosomes.
One reason that water is able to form unbroken columns is because water molecules are cohesive
____________________ Indicate whether the statement is true or false.
Approximately _____% of the energy at one trophic level is passed on to the next highest trophic level.
a. 0-5 b. 5-10 c. 10-15 d. 15-20 e. 90-100