15. which of the following accurately reflects the beliefs on earth's early history?
a. scien...
15. which of the following accurately reflects the beliefs on earth's early history?
a. scientists believe that microspheres nearly prevented the development of early life.
b. scientists believe oxygen was plentiful in the early atmosphere.
c. scientists believe the early atmosphere lacked the oxygen necessary to support modern human life.
d. scientists believe that dna may have existed before rna
Answers: 1
Another question on Biology
Biology, 22.06.2019 03:50
Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.
Answers: 1
Biology, 22.06.2019 09:30
Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.
Answers: 1
Biology, 22.06.2019 09:30
Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?
Answers: 1
You know the right answer?
Questions
Mathematics, 10.05.2021 22:00
Mathematics, 10.05.2021 22:00
Physics, 10.05.2021 22:00
English, 10.05.2021 22:00
Mathematics, 10.05.2021 22:00
Mathematics, 10.05.2021 22:00
Mathematics, 10.05.2021 22:00
English, 10.05.2021 22:00
Mathematics, 10.05.2021 22:00
Mathematics, 10.05.2021 22:00
Social Studies, 10.05.2021 22:00
Mathematics, 10.05.2021 22:00
