Answer:
By the end of prophase, each of the following has occurred except <em>lining up of chromosomes in the cell.</em>
Explanation:
The lining up of the chromosomes in the cell occurs during the third stage of cell division. This stage is termed as the metaphase.
Prophase is the first stage of cell division. Hence, the lining of the chromosomes does not occur by the end of prophase.
During the prophase, the chromatin material condenses and become more compact so that the chromosomes become visible. The nucleolus and the nuclear envelope disappear by the end of prophase. Hence, all other options A, B and C occur by the end of prophase except option D.
Answer:
The correct answer is "change".
Explanation:
The missing options of this question are:
A. natural selection.
B. immutability.
C. survival of the fittest.
D. change.
The correct answer is option D. "change".
The scientific racism that was prevalent during Charles Darwin books publications was related to the concept of "pure races", and the association of the inheritance of the "superior attributes" related to these races. Darwin's ideas were incompatible to this scientific racism, since Charle Darwin theories support the idea of a constant change among all people attributes, produced by genetics behavior and exposure to environmental factors.
Answer:
The correct option is B.<u> It was mostly incorporated into proteins that regulate and manage metabolic reactions.</u>
Explanation:
The results of the experiment showed that most of the radiolabeled amino acids were present in the mitochondria.
Amino acids can be described as organic compounds which build up the proteins. There are 20 different kinds of amino acids which make up different kinds of proteins, each specified to perform specific functions.
The results from the experiment prove that the radiolabeled amino acid is being used to make proteins that are necessary for metabolic reactions.
B. Methane (Ch2) is released by animals and contributes to global warming
