What type of natural selection is this? Scientists noticed that birds with smaller beaks struggled to eat the large seeds and often gave up. Based on the data provided, is there evidence to demonstrate the beak depth is a product of natural selection?

Can a trait be both polygenic and have multiple alleles? explain why or why not.

Kinases add - groups to other enzymes. this activities some enzyme while inhibiting other

Question 1 which of the following allows cells to take in fluids? a. phagocytosis b. pinocytosis c. exocytosis d. receptor-mediated endocytosis question 2 molecules move along their concentration gradient (from areas of high concentration to low concentration) using active transport mechanisms. a. true b. false question 3 which of the following powers active transport (ie. provides the energy for)? a. glucose b. transport proteins c. atp d. phospholipids question 4 what type of lipid is a major component of the plasma membrane? a. cholesterol b. phosopholipids c. proteins d. triglycerides