Biology, 22.10.2020 20:01, patrickdolano
Vernon is studying the population of deer in a tract of forest. He gathers the following data.
Birth rate: ~50 deer/year
Death rate: ~70 deer/year
Which additional observation would support the conclusion that the deer population is NOT changing size from year to year, meaning that the net population change is 0?
Answers: 3
Biology, 22.06.2019 02:30, sabrinarasull1pe6s61
Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c. ozone layer hole d. increase in sea levels
Answers: 1
Biology, 22.06.2019 11:20, gamallopatty
Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in tanzania, from a period slightly after the time that homo habilis was present in africa. these sites clearly were founded by homo erectus, the descendent species of homo habilis that migrated north, out of africa and into asia. homo erectus was known to have mastered fire, from ample evidence at sites in asia. there is no reason to attribute mastery of fire to homo ergaster, the descendent species of homo habilis that remained in africa. which of the following is an assumption on which the argument depends? (a) before their migration, homo erectus occupied african territory as far south as tanzania.(b) the strain of migration provided the selective pressure motivating homo erectus‘ mastery of fire.(c) homo ergaster would not have derived as much benefit from the mastery of fire as did homo erectus.(d) homo ergaster inherited all cultural knowledge from homo habilis, a species that did not have mastery of fire.(e) homo ergaster did not occupy regions as far south as tanzania until well after the time of these three sites.
Answers: 2
Biology, 22.06.2019 13:30, shaniqwakirkseyniqwa
What is used as a template during replication? a- mrna b- trna c- rrna d- dna
Answers: 1
Biology, 22.06.2019 16:30, ilovevegene
How do disease caused by bacteria and disease caused by viruses react to antibiotics?
Answers: 2
Vernon is studying the population of deer in a tract of forest. He gathers the following data.
Birt...
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