Which of the following describes a way to sustainably raise livestock for food? I. Feeding livestock crop byproducts
II. Recover methane from manure for fuel
III. Food additives that prevent methane formation

I only
II only
II and III
I, II, and III

F. L.V. S

Blood made up of red and white blood cells work together to form

Which best describes how parents affect the genotype of a child? a.the parents decide what to feed their child b.the parents choose whether to educate their child c.the parents allow their child to stay up late d. the parents pass along genes to the child

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.