Answer the following questions true (T) or false (F)
1. Commensalism often results in competitive exclusion.
2. Organisms in communities may be important factors in the evolution/adaptation of other organisms in the community.
3. Climax communities in succession are those that persist for long periods of time.
1. FALSE
2. TRUE
3. TRUE
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Would babies need to be immunized against lockjaw (tetanus) if their mother had been immunized against the disease? Why or why not?
A. No-because the mother's IgG antibodies would be passed along through the placenta before birth, protecting the baby from the infection. B. Yes-because even though maternal IgG antibodies might be passed along through the placenta, they will not last forever. The baby will need to create its own antibody response to be protected against future tetanus. C. No-because maternal IgG antibodies would be passed along in the breast milk, protecting the baby from infection. D.
This protein functions in muscle contraction.
a. Keratin b. Hemoglobin c. Actin d. Insulin e. Pepsin
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be
A) speckled. B) black. C) gray. D) white.
A newly reported member of the phylum Verrucomicrobia, Acidimethylosilex fumarolicum has been found to be thermophilic, acidophilic, and photosynthetic.
Answer the following statement true (T) or false (F)