When one animal makes a sacrifice to support or benefit another, we call this ________
A) mutual benefit
B) selfishness
C) altruism
D) spite
C
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An autosome is
a. a chromosome that is part of a pair that is the same in both males and females. b. a structure for transport of genetic material to the cytoplasm. c. a chromosome with a group of genes involved in autoimmune disorders. d. a region of the DNA that is self-replicating. e. a cellular body involved in autoimmune disorders.
Hormones are distributed throughout the body
by
a. the urinary system. b. the lymphatic system. c. the nervous system. d. the circulatory system. e. more than one of these systems
A population of snakes lives in a valley. This population of snakes is 30% black and 70% brown in coloration. A dam is built to flood part of the valley, separating the snakes into two populations
West of the human-made lake, there's a very small population of all black snakes, while east of the lake, the population is much larger and retains the same percentage of black and brown coloration as before the dam was built. What process applies to this example? A) a homozygous population growth B) genetic drift C) inbreeding D) competitive exclusion
Artificial selection has been used to shape the behavior of farm animals such as the chicken and domestic animals such as the dog
Evolutionary behaviorists believe that natural selection has also affected the appearance and behavior of the domestic dog. Provide a short explanation of how this may have happened. What will be an ideal response?