Aside from the traditional hypothesis that life on Earth developed via organic compounds produced in
a reducing atmosphere, which of the following alternative hypotheses is most likely?
a. Life could have arisen from the organic compounds formed around hydrothermal vents far
below the ocean floor.
b. Life could have developed on another planet and was then delivered by meteorites.
c. The organic compounds necessary for life were delivered to Earth by meteorites.
d. Life on Earth may have arisen inside land-based volcanoes.
e. The organic compounds necessary for life could only have been produced in an oxidizing
atmosphere
A
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In performing research, you treat frog zygotes with antibodies that bind E-cadherin. As a result, you expect
A) the cells to become exclusively muscle tissue. B) the cells to be loosely associated and abort development. C) the cells to be loosely associated and develop into a novel strain of frog. D) the cells to divide uncontrollably. E) no change with regard to development.
To provide motility, prokaryotic flagella whip back and forth while eukaryotic flagella rotate.
Answer the following statement true (T) or false (F)
Fungi and plants have a long-term relationship in the history of life on Earth. Appraise the evidence in support of this concept
What will be an ideal response?
The phase called ______ is an interval between cell division and DNA replication. During this time, a cell synthesizes proteins, grows, and accumulates the materials needed to replicate its DNA in the next phase.
Fill in the blank(s) with the appropriate word(s).