Experiments that attempt to simulate conditions on early Earth have produced results that hint at the possible origins of life. What have the experiments produced?
What will be an ideal response?
The early experiments have produced organic molecules, such as small amino acids and nucleotides that are now produced by living organisms, from inorganic molecules.
You might also like to view...
There are three possible evolutionary relationships among a bird, bat, and dolphin. The scenario that is most likely to be correct is the one in which the derived traits (in red) would have arisen the fewest number of times
Which scenario (A, B, or C) is the one most likely to be correct?
1.A 2.B 3.CWe are unable to exert any conscious control over the contraction of smooth or cardiac muscle. These muscles are referred to as ________ muscle
Fill in the blank(s) with correct word
The vertebrate forelimb initially develops in the embryo as a solid mass of tissue. As development progresses, the solid mass near the end of the forelimb is remodeled into individual digits. Which of the following best explains the role of apoptosis in remodeling of the forelimb?
A) Apoptosis replaces old cells with new ones that are less likely to contain mutations. B) Apoptosis involves the regulated activation of proteins in specific cells of the developing forelimb that leads to the death of those cells. C) Apoptosis involves the destruction of extra cells in the developing forelimb, which provides nutrients for phagocytic cells. D) Apoptosis in the developing forelimb triggers the differentiation of cells whose fate was not already determined.
Which compound is produced in the mitochondria and provides the cells with a large amount of energy?
A) water B) glucose C) carbon dioxide D) ATP