An explanation of observations and data supported by the experimental results of many scientists for many years is
A) a theory.
B) a hypothesis.
C) scientific method.
D) popular opinion.
E) a control group.
A
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In Müllerian mimicry a defenseless species is protected by its resemblance to a dangerous species. Indicate whether the statement is true or false
What is the difference between phenotype and genotype?
A) Phenotype is when both alleles are the same and genotype is when the alleles are different. B) Genotype is the physical expression of a trait and phenotype is the combination of alleles carried by the organism. C) Phenotype is the physical expression of a trait and genotype is the combination of alleles carried by the organism. D) Phenotype is the alleles that are hidden and genotype is the alleles that are expressed.
Which of the following is NOT a form of locomotion used by protozoa?
pseudopodia cilia flagella budding
Which of the following tumor-suppressor genes encode proteins that inhibit cell division when cell conditions are unfavorable?
A. p16. B. Rb. C. BRCA1. D. NF1. E. All of these are tumor-suppressor genes, so they all produce proteins that inhibit cell division.