In what type of habitat, or under what types of environmental conditions, would you expect adaptive radiation to occur?
What will be an ideal response?
Any habitat in which many different types of unexploited food resources and few or no competitors exist is ideal for adaptive radiation. This seems to be the case in Darwin's finches of the Galápagos Islands, the cichlids of Lake Malawi, and other classic examples of adaptive radiation.
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A typical human yawn lasts for about six seconds and once initiated, is nearly impossible to stop. Although there are many hypotheses for why we yawn, it is accepted that yawning is contagious - when we see someone else yawn, we often find ourselves yawning as well. This happens across all cultures and even in infants! In this case, the yawn an individual observes is ____________, while their own yawn is ____________.
A. an association, a conditioned response B. a sign stimulus, a fixed action pattern C. innate behavior, habituation D. reflex response, learned behavior
Items a through c below are processes that occur during different
stages of photosynthesis. Answer questions 58–61 by selecting one of these three processes. a. oxidation b. reduction c. phosphorylation E 58. This process leads to the formation of ATP from ADP plus inorganic phosphate. M 59. This process occurs when an electron is passed to an electron acceptor molecule, such as NADP+. D 60. This process is involved when a photon of light energy causes an electron to leave the chlorophyll molecule. M 61. This process occurs when an electron transport molecule gives up an electron.
Answer the following questions true (T) or false (F)
1. State whether the following statement is true or false, then give your reasoning. The terminating "hairpin" loop occurs in the trp operon when sufficient tryptophan is present.
The _____ and _____ of the light being refracted influence the refractive index for any substance.
What will be an ideal response?