If the figure 5 above shows realized niches, this is a strong example of
A) competitive exclusion
B) character displacement
C) niche partitioning by seed size
D) resource competition for certain seed sizes
E) resource competition for the largest seed size
Answer: D) resource competition for certain seed sizes
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Which receptors allow you to respond to changes in muscle load?
a. muscle spindles b. cupula c. vestibular apparatus d. semicircular canals e. otoliths
What is the evidence that differentiation produces specialized cells without the loss of genes?
What will be an ideal response?
How are B-cell receptors different from antibodies?
a. B-cell receptors bind antigen, while antibodies do not. b. B-cell receptors do not contain heavy chains, while antibodies do. c. B-cell receptors include a variable region, while antibodies do not. d. B-cell receptors include a transmembrane domain, while antibodies do not. e. B-cell receptors are produced by B cells, while antibodies are not.
Sexual reproduction leads to offspring that are all genetically different from one another and from either parent. What are the three aspects of sexual reproduction that lead to this variation?
a) shuffling and reassortment of homologues during mitosis; shuffling and reassortment of homologues during meiosis; and combination of alleles from two parents at fertilization. b) crossing over during the production of zygotes; shuffling and reassortment of homologues during mitosis; and combination of alleles from two parents at fertilization. c) crossing over during the production of gametes; shuffling and reassortment of homologues during mitosis; and combination of alleles from two parents during binary fission. d) crossing over during the production of gametes; shuffling and reassortment of homologues during mitosis; and combination of alleles from two parents at fertilization. e) crossing over during the production of gametes; shuffling and reassortment of homologues during meiosis; and combination of alleles from two parents at fertilization.