Compare and contrast the following terms: homology and homoplasy. Provide two examples of each. What will be an ideal response?
Homology is indicated when different features are derived from similar structures. A human
arm and cat forelimb are identified as homologous structures because they have similar
arrangements of bones, muscles, and nerves.
Similar structures that have similar function but evolved independently are homoplastic
structures. The wings of flying animals have the same function but evolved from different
structures.
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Which of the following type of organism is always multicellular?
A. animals only B. plants only C. archae only D. prokaryotes only E. both animals and plants
By the end of the first trimester of pregnancy, all of the major ____________________ have formed and are functional
Fill in the blank(s) with correct word
If an ecologist wants to determine the number of grass plants in a grassland, it is not realistic to actually count them all. Rather the researcher measures the number of individuals in several one-meter by one-meter square plots. What must they do next to estimate the total population size?
What will be an ideal response?
Which receptor in plant cells is activated by red light?
a. rhodopsin b. diacylglycerol c. acetylcholine d. phytochrome e. cryptochrome