5. Solar energy, tidal energy, geothermal energy, and biomass 'are
unreliable sources of energy
politically divisive sources of energy
sources of energy that will not run out
sources of energy that we do not know how to use

In which of the following relationships is one organism always benefited while the other organism is always harmed

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different

In sheep, the allele for belly fur (a) is dominant to the allele for no belly fur (a). a mother with the genotype aa and a father with the genotype aa produce an offspring.