Attractions between water molecules are called:

a. covalent bonds

b. polar bonds

c. hydrogen bonds

d. ionic bonds

Amino acids are the building blocks of? 1) Proteins 2) nucleic acids 3) carbohydrates 4) fats

What is the term for the diffusion of water across a semipermeable membrane?

Which statement is the most reasonable testable prediction for the hypothesis: All birds can fly? -observe all the birds outside your home for a week to see if they all can fly -examine the list of all known species of birds and determine if any

Mammals were not contemporaries of the dinosaurs.

Which of the following is the most acidic? A) water B) ammonia C) Iye D) cola

What are some characteristics that all animals share?

Which of the following biomolecules would be the preferred dietary intake molecule the day before a long distance runner is scheduled to compete in an event? a. Lipids b. Carbohydrates c. Proteins d. Nucleic Acid

Mutation of the muscle-specific intermediate filament desmin leads to the rare disease desmin-related myopathy. This disorder starts with weakness of the lower limbs when patients are in their 20s or 30s.

How could a plant regulate the movement of carbon dioxide oxygen and water vapor into and out of the leaf?

All of the following are weak acidsexcept A. HCNO. B. HBr. C. HF. D. HNO2. E. HCN.