Biology, 13.05.2021 04:20 damaricoleman42
Evolution over the millennia has resulted in the great variety of Life on Earth. Yet scientists hypothesize all life has
descended from an ancestral one-celled organism. What provides the MOST compelling evidence for this statement?
at
A)
The DNA code is the same for all living things.
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B)
Fossil records show a progression in life forms over time.
1
Similar body structures have been inherited from a common ancestor.
D)
Sexual reproduction promotes genetic variation and change over time.
Answers: 2
Biology, 22.06.2019 09:30
Consider the following reaction: 2h2 + o2 β> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?
Answers: 2
Biology, 22.06.2019 09:30
Parthenogenesis is a type of reproduction that does not require a mate. itβs 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 10:30
19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase
Answers: 2
Biology, 22.06.2019 13:30
Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas. true or false.
Answers: 2
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