Biology, 30.01.2020 09:59 mrstealyogirl40
Sharks and dolphins look very much alike--both have streamlined bodies, fins, and sharp teeth. sharks and dolphins, however, are not closely related. the body structures that characterize sharks and dolphins have evolved independently. which term is used by evolutionary biologists to describe the process by which two separate species may evolve in a similar way and come to resemble one another? a) adaptive radiation b) convergent evolution c) punctuated evolution eliminate d) coordinated development
Answers: 3
Biology, 21.06.2019 17:30
Charles darwin published his theory of evolution in 1859. in what way foes modern evolutionary theory differ from the theory as proposed by darwin? a) darwin inferred that individuals can evolve, but modern generic science has shown that this is not true. b)darwin inferred that individuals do not evolve, but modern genetic science has shown that this is not true. c)modern science has disproved most of darwin's original theory of evolution, because darwin knew nothing about generations and their role in heredity. d)generic studies have shown that gene expression and other factors operate along with natural selection, but most of darwin's theory has been supported by modern science.
Answers: 1
Biology, 22.06.2019 02:00
Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.
Answers: 1
Biology, 22.06.2019 04:30
Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?
Answers: 3
Biology, 22.06.2019 05:10
What would happen if the tubing with the yellow band was placed in a beaker of distilled water?
Answers: 2
Sharks and dolphins look very much alike--both have streamlined bodies, fins, and sharp teeth. shark...
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