Macy observes the lake near a park is covered in green slime. over a few days she sees that the fish in the lake have started dying. what could
be a possible cause of this situation?
o
a.
the acid level of the lake has increased.
o
b.
an algal bloom has drained the lake of oxygen.
o
c.
industrial chemicals have poisoned the lake.
o
d.
the sediment level of the lake has increased.

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.