The higher invertebrates are also classified as determinates or indeterminates. this division is based on which developmental function? select one of the options below as your a. whether the blastopore ultimately develops into a mouth or an b. whether the process of cell differentiation begins early or c. whether the embryonic cells show spiral or radial d. whether the coelom forms by splitting the mesoderm or through the pocket of the gut

The answer is B. Whether the process of cell differentiation begins early or late.

Based on whether early or late cell differentiation, higher invertebrates are classified as indeterminates or determinates.

Indeterminates have indeterminate cleavage. Indeterminate cleavage means that cells remain for a longer period indeterminate, and it occurs later in the embryo development.

On the other hand, determinates have determinate cleavage. In this type of cleavage, a fate of different cells is determined early in the development process.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.