Why does weather vary from day to day?

a. because weather is a complex interaction among many different variables that are constantly changing

b. because cold fronts are always followed by a series of colder fronts, before a warm front returns

c. because the sun's energy heats all parts of the earth evenly but does not heat the atmosphere

d. because the rotation of the earth causes the atmosphere to expand and contract as it nears the sun or moon

Complete the possible outcomes for each generation in the pedigree chartaa aa aa

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.