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Question
Many farms in New England were abandoned in the 1800s as settlers reached the more fertile grasslands of the Midwest. These farms had been planted in different crops, but within five to ten years the farms appeared to have similar herbaceous and small tree species on them. This is an example of:
A) convergent evolution.
B) primary succession.
C) coevolution.
D) secondary succession.
Answer
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Related questions
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The sequence of development of sperm is:
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On average, about how often does ovulation occur?
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Through what structure does an oocyte travel on its way to the uterus?
A) uterine tube
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If you could stop diffusion of substances in fruit fly zygotes, could you stop normal development? Why or why not?
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Programmed cell death is also known as ________.
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You are a substitute teacher in a high school biology lab class on the day the students are dissecting frogs. A particularly bright student happens to notice that the left adrenal gland is malformed in her frog. She asks if a problem in embryonic development could have caused that. Although there may be more than one reason, what might you propose as an explanation based on embryonic development?
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The blastula is the stage of embryonic development in which cells migrate.
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The end of a zygote that contains less yolk is the animal pole.
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A) sonic hedgehog
B) sonic chicken
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Which of the following is a process by which an initial set of genes turns on a second set of regulatory genes, which eventually turns on a third set of genes?
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What is the effect of higher concentration of bicoid protein in part of a fruit fly embryo?
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B) It will develop into the heart of the organism.
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Of the choices listed, the first event that occurs during embryonic development is:
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Q:
The phase during which embryonic cells arrange themselves into three layers is called:
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D) fertilization.
E) induction.