True or false: In general, external fertilization is found in animals living in stable, predictable environments
A. true
B. false
B
Biology & Microbiology
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What is a substance required by all organisms for survival but something that they cannot make on their own?
a. Nutrient b. Sunlight c. Energy d. Carbohydrate e. Oxygen
Biology & Microbiology
If the codon consisted of only two nucleotides, there would be how many different kinds of codons?
a. 4 b. 8 c. 16 d. 32 e. 64
Biology & Microbiology
An Hfr cell can initiate chromosome transfer from one E. coli to another
Indicate whether the statement is true or false
Biology & Microbiology
How do protists provide evidence for the step-wise evolution of mitosis?
A. Only meiosis occurs in protists. B. In some protists the nuclear membrane fails to break down during mitosis. C. Mitosis has not been observed in any protist species. D. Protists use conjugation instead of mitosis.
Biology & Microbiology