What evidence does banded iron in rocks provide?
a. origin of life
b. presence of oxygen in t...
Biology, 09.03.2021 21:20 klocke2001
What evidence does banded iron in rocks provide?
a. origin of life
b. presence of oxygen in the atmosphere
c. emergence of photosynthesis
d. volcanic activity
Answers: 2
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 21:30
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Answers: 1
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Mutations can be categorized based on the kind of effect they have on an organism
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