Although carbon dioxide contains carbon, it is not
considered an “organic” compound because
a. it is not found in the earth’s crust.
b. it is not present in living cells.
c. the carbon atom is not bonded to at least one
hydrogen atom.
d. the carbons are not in chains or rings.
e. it is too small.
Answer: c
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A honeybee's dance in its dark hive around a crowd of fellow workers conveys where food is, relative to the direction of the sun. This is an example of ____ communication
a. visual b. chemical c. tactile d. acoustical e. direct
A heterozygous individual has a _____ for a trait being studied
a. pair of identical alleles b. pair of nonidentical alleles c. haploid condition, in genetic terms
A desert plant called Kalanchoe can reproduce, either with sexual reproduction through flowers, or asexually by budding off miniature leaf and root clusters from its leaves. When buds are produced, they land on the ground, take root, and grow, genetically identical to the original. If budding is used for several years, a large area may be covered with these descendents from the same original plant. The resulting population of plants will
A. automatically experience more genetic mutations, so that some of the plants will survive environmental change. B. None of the answer choices is correct. C. be more strongly able to adapt to environmental change, compared to the Kalanchoe that are reproducing sexually. D. not be as strongly able to adapt to environmental change, compared to the Kalanchoe that are reproducing sexually. E. adapt to environmental change, by shifting from asexual budding to conjugation, so they can sexually reproduce.
The predominant bacterial species that colonizes the human skin is
A. Staphylococcus epidermidis. B. Bacterioides fragilis. C. Candida albicans. D. Lactobacillus. E. Streptococcus pneumoniae.