6whale blubber was once used by many countries to make lamp oil and other products. because of the usefulness of whale blubber, huge numbers of whales were caught and killed in the 1800s. as a result, the whale populations around the world severely dropped. in the late 1800s, electric lights were introduced in many cities. how do you think the use of electric lights affected whale populations? a. most whale populations became extinct. b. most whale populations continued to decline. c. most whale populations moved to other areas. d. most whale populations began to rise.
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Biology, 21.06.2019 21:00
In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected
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Biology, 22.06.2019 03:30
Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae
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Biology, 22.06.2019 07:30
Gregor mendel is best known for his work with pea plants and for uncover many of the mysteries of genetics. one of his major findings stated that there were specific, physical units of inheritance that are transmitted during reproduction. what is the the name given to these units of inheritance which can be found on chromosomes? a) centromeres b) cytoplasm c) genes d) nucleotides
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Biology, 22.06.2019 08:00
In which state was more than 100 billion tons of coal mined in 2005?
Answers: 1
6whale blubber was once used by many countries to make lamp oil and other products. because of the u...
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