What two traits must be pleiotropic in order for sympatric speciation to occur in Heliconius butterflies?

A student wanted to determine how tall corn would grow if different types of fertilizer were used.

Consider a food chain with 1,000 joules (an energy unit) available at the producer level. If this food chain is grass - > grasshopper - > lizard - > crow, how much energy is found at the level of the crow?

You are part of a team of doctors doing a Phase 2 study of teixobactin on humans. Assuming protocol had not changed since the mice study, how are you administering the drug? a) through a nasal spray b) rectally c) orally d) by injection

Why are fungi not placed in the plant kingdom

According to a famous article by Max Kleiber*, the scaling of the metabolic rate or energy consumption for mammals Pₘₑₜₐᵦ (measured in kcal/day) with the body mass Mb (measured in kilograms) is Pₘₑₜₐᵦ = 70 Mb^ (0.75).

Cooking oil lipids consist of long, unsaturated hydrocarbon chains. would you expect these molecules to form membranes spontaneously? why or why not?

Which area is studied by biologists

What molecule, produced in cellular respiration, is used to open and close ion channels? A. ADP B. high energy electrons C. adenosine triphosphate

What is true of saturated fatty acid chains? They are more healthy that unsaturated fats. They contain only single covalent bonds. They are only made in leaf cells of green plants. They contain at least one double or triple bond.

Biology question 32. do you think human height is affected only by genetics? Explain your answer