16 Select all the correct answers
A population of mussels was observed in a particular ecosystem. It was found that crabs preferred these mussels as their favorite food. Few
mussels developed a thicker shell to protect themselves from crabs found in the region. Which three statements does this adaptation suggest?
A change in the environment led to a new distribution of traits in a population.
The trait of shell thickening underwent natural selection.
The trait for shell thickening will not be selected by future mussel generations.
Half of the mussel population developed the trait while the other half did not.
Mussels with the shell thickening trait had a greater chance of survival.
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Dr. bad has developed a way to damage the atp-binding cassette transporter (abc transporter) on a cell. the cell's abc transporter can no longer bind and use atp when it's transporting substances. which of the following statements best describes how this damage would effect the transport of substances in the affected cell? (choice a) substances at a low concentration outside the cell would be more rapidly transported into the cell, where there is a high concentration. (choice b) substances at a high concentration outside the cell would not be transported into the cell, where there is a low concentration. (choice c) equilibrium would be established between all substances inside and outside of the cell. (choice d) substances at a low concentration outside the cell would not be transported into the cell, where there is a high concentration.

The third stage of cellular respiration is (2 points)

Which organ controls breathing? lungs alveoli heart diaphragm