Cells of all organisms have various mechanisms to control their metabolism. Some animals go into hibernation in response to changing environmental conditions. Their metabolism slows down to decrease their need for food. Which statement best explains this ability to change metabolism? Animals that hibernate have genes that code for hibernation.
Phenotypes control the hibernation genotype, determining metabolism regulation.
Genes that regulate metabolism are multi-factorial and adjust to environmental changes.
Genes that regulate metabolism can mutate to adjust to temperature and lack of food.

Facilitates growth and change in neurons and the migration of neurons to different sites in the brain

The dna in a cell’s nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well as proteins that are targeted for secretion from the cell. for example, consider these two proteins: phosphofructokinase (pfk) is an enzyme that functions in the cytoplasm during glycolysis. insulin, a protein that regulates blood sugar levels, is secreted from specialized pancreatic cells. assume that you can track the cellular locations of these two proteins from the time that translation is complete until the proteins reach their final destinations. for each protein, identify its targeting pathway: the sequence of cellular locations in which the protein is found from when translation is complete until it reaches its final (functional) destination. (note that if an organelle is listed in a pathway, the location implied is inside the organelle, not in the membrane that surrounds the organelle.)

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind