Answer:
Solar Radiation
Explanation:
Increased carbon dioxide in the atmosphere leads to increased absorption of Solar Radiation.
Movement of water through a plasma membrane from a low to high solute concentration.
It should be natural selection since there is no external influence implied. (like environment or genetic mutations.)
Answer:
The lack of Mad1 protein can cause faster cell division.
Explanation:
The Mad1 protein is responsible for regulating the fixation of chromosomes in spindle microtubules, during cell division. With the presence of this protein, anaphase is prevented from starting while the spindle, where the chromosomes attach, is formed.
Without this protein, this check is not done and cell division occurs faster, which is one of the reasons why cell division can be accelerated.
Fetuses who were more active during the last trimester of the pregnancy became 2 year olds who were less fearful when interacting with an unfamiliar adult in a laboratory, and those with one year knew how to handle frustration better than those who were less active during the last trimester.
