Biology, 07.01.2020 21:31, rleiphart1
Due to various causes, including ddt poisoning, the population size of whooping cranes was reduced to about two dozen during the 1940s. the population size has since rebounded, and there are now hundreds of whooping cranes. which would you not expect to see in the current populations of whooping cranes? a. very low levels of genetic variation
b. very few heterozygous individuals;
c. considerable genetic polymorphism.
d. all of the above would be seen in whooping cranes.
Answers: 1
Biology, 22.06.2019 00:20, vale4287
1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the โfittestโ of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.
Answers: 1
Biology, 22.06.2019 04:00, egr1387
What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.
Answers: 3
Biology, 22.06.2019 06:30, lambobacon9467
Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16
Answers: 3
Due to various causes, including ddt poisoning, the population size of whooping cranes was reduced t...
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