When species are extensively hunted, individuals that reach reproductive maturity early make up a larger proportion of the population, because they have a better chance of reproducing. when species face diminished food resources, on the other hand, individuals tend to take longer to reach reproductive maturity. these considerations may settle whether the primary cause of the gradual disappearance of north america's mastodons, prehistoric animals related to elephants, was diminished food resources or human hunting, since
(a) from the location of certain hunting weapons in juxtaposition with mastodon remains, it is possible to determine whether those weapons were used to hunt mastodons.
(b) the average age at which mastodons reached reproductive maturity can be established from mastodon tusks, of which there are many fossils dating from different periods
(c) from the remains of mastodons already discovered, it can be accurately estimated when mastodons became extinct
(d) from tusks and other bones, it is possible to determine whether male and female mastodons reached reproductive maturity at about same age
(e) it is possible to determine whether earliest human dwellings constructed from mastodon tusks and bones come from an earlier period than the earliest hunting weapons unambiguously associated with mastodon remains.
Answers: 2
Biology, 22.06.2019 01:00, nikoidurrant
Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.
Answers: 1
Biology, 22.06.2019 10:30, Xavitheking2542
In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna. b) they study alleles that contain genes, which are chromosomes. c) they study chromosomes that contain genes, which are dna segments.
Answers: 1
Biology, 22.06.2019 16:30, leverso
Which of the following may one conclude from a map that shows the average ph value of rainfall in the u. s.? acid rain is a more serious problem on the east coast. acid rain falls equivalently across the continental u. s. there are more factories on the west coast. the midwest has fewer forests than the rest of the u. s.
Answers: 1
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