The "P" in P generation refers to
A. the recessive allele.
B. All of the answer choices are correct.
C. parental.
D. potential offspring.
E. pure breeding.
C. parental.
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Acquired immune tolerance is the body's ability to produce T cells and antibodies against antigens such as microbial antigens, while "tolerating" ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements is false
regarding alcohol consumption during pregnancy? a. The developing embryo or fetus quickly absorbs alcohol across the placenta. b. Symptoms of fetal alcohol syndrome include reduced brain size and facial deformities. c. Cases of FAS are seriously underdiagnosed and misdiagnosed. d. The effects of FAS are temporary. e. Even occasional drinking may have negative effects
Secondary succession is likely to occur in
a. a burned forest. b. a shallow lake. c. an abandoned field. d. a burned forest and a shallow lake. e. a burned forest, a shallow lake, and an abandoned field.
One major difference between ectomycorrhizae and arbuscular mycorrhizae is
A. ectomycorrhizae are parasitic on plant roots while arbuscular mycorrhizae are not. B. most ectomycorrhizae are zygomycetes while most endomycorrhizae are basidiomycetes. C. ectomycorrhizae do not penetrate plant roots; arbuscular mycorrhizae penetrate plant roots. D. ectomycorrhizae are more common on plant roots than arbuscular mycorrhizae. E. ectomycorrhizae form mutualisms while arbuscular mycorrhizae are parasitic.