Originally a marine species, stickleback fish now live in both marine and freshwater environments. marine sticklebacks have pelvic spines that protect them from marine predators. freshwater sticklebacks do not have pelvic spines, which reduces their likelihood of being caught by freshwater predators that can grasp onto these spines. the lack of spines in freshwater sticklebacks results from a heritable mutation that modifies the function of the pitx1gene. this mutation occurred:

a.
in the mrna that is transcribed from the pitx1 gene in pelvic cells.

b.
in the regulatory region of the pitx1 gene.

c.
in the coding region of the pitx1 gene.

d.
in the cells of the pelvis of freshwater sticklebacks.

Part e - sequence of metabolic processes each of the different cellular metabolic pathways occurs in a specific order. consider aerobic cellular metabolism from the beginning to end. what is the sequential order of the metabolic processes that starts with glucose and results in the production of carbon dioxide, water, and atp? put the following in the correct sequential order. rank from earliest to latest. to rank items as equivalent, overlap them. view available hint(s) acetyl coaglycolysiscitric acid cycle pyruvate finishstartstart background image electron transport chain background image finish background image submit cellular metabolism is often expressed as an equation. this equation puts into perspective, on a general scale, the substances needed to start cellular metabolism and the products that come out of it. the equation represents the overall product yield after every step of cellular metabolism is complete (i.e., glycolysis through the electron transport system). in this part of the tutorial you task will be to put together the equation that represents cellular metabolism. you will also learn the products that result from each metabolic pathway and the role that some these products play in the production of atp.

Patient has just received an organ transplant which treatment would be most effective in preventing the patient’s body from

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.