D. radial symmetry evolved at least twice in unrelated invertebrates groups
The changes will occur in an aquatic ecosystem as a result of nutrient loading are: changes in natural flow regimes as a result of water extraction and supply direct modification or destruction of important habitats barriers to the movement of plants and animals. For example within rivers and between rivers and their floodplain effects of poor water quality competition from introduced, <span>exotic animal and plant species. </span>
1. <span>True
2. </span><span>True
3. False
4. </span>True<span>
5. </span>True<span>
6. </span>True<span>
7. </span><span>False</span>
A single human B cell can produce only D. 1 antibody.
It produces a single species of antibody, with unique antigen-binding site.
Answer: vaporous ball
Explanation:
atmos- vaporous and sphere- ball but it’s just a word on its own anyway
