Darwin originally defined evolution as __________.
Fill in the blank(s) with the appropriate word(s).
Answer: descent with modification
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Crossing over is partially responsible for our genetic diversity
a. True b. False Indicate whether the statement is true or false
The “sixth mass extinction” refers to
a. the end of the dinosaur era b. the rise of predators during the Cambrian period c. what will happen to the human species after a nuclear war d. the rapid loss of biodiversity due to degradation of the environment by humans e. what happened when insects evolved on land
A farmer’s land includes a wilderness area that is home to an endangered species of bird. He wants to sell the land to a developer, and you have been hired to evaluate the environmental concerns. “This little patch of land is not crucial for the bird species!” the farmer says, “In fact, my land is surrounded by several other wilderness patches that also have that bird.” You reply: “It is possible that your land acts as the ____________ and the other areas are ___________ . If that's the case, development would be devastating to the population."
A. sink; sources B. source; sinks C. population; metapopulation D. metapopulation; population Clarify question: What type of thinking is required? Gather Content: What do you already know about metapopulations? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Megaspores produce
a. female gametophytes. b. microspores. c. sporophytes. d. embryos. e. diploid tissue.