C- immune and integumentary
DNA replication requires a few things:
1. a template
2. DNA polymerase
3. some sort of primer which binds to the DNA to get it started
4. oligonucleotides (to add as the replication occurs)
5. a ligase to complete any fragmented DNA
So, if the biochemist added some stuff but doesn't really get replication to occcur, he/she probably left out the DNA ligase
Species.
Different species are defined based on reproductive isolation.
Answer:
The correct answer is option B) "habitat isolation".
Explanation:
The two populations of ticks herein described have preference in one of two populations: either over mule deers or white-tail deers. One term that might be applied to describe these populations is habitat isolation. Habitat isolation occurs when the chances of mating between individuals of the same species are lowered because of differences in habitat preference. This is the case for the two populations of ticks, where because of differences in host preference, the ticks that feed from mule deers are isolated from the ones that feed from white-tail deers and vice-versa.
Answer:
Agricultural chemicals cause deformities and feminization amongst cane toads.
Explanation:
Pesticides are the chemicals used to kill the harmful pests that can harm the main crops of the land. The pesticides can cause the environmental pollution as well.
The study explained in the question shows that the agriculture chemicals can harm the organisms of the different trophic levels. The agricultural chemicals is responsible for the feminization and can cause health deformites in the cane toads.
Thus, the answer is agricultural chemicals cause deformities and feminization amongst cane toads.