T cell receptor, Cytotoxic T Cell, CD4, Antigen, Bacterium,
B – cell, Cell mediated response, Class II MHC, Cytokines, and Humoral Response
are the components for the activation of a helper t cell by a dendritic cell.
Ecosystem is a living system, where living organisms interacts with their environment and among each other.
Due to some hazardous processes like, Global warming, Green-house effect, increasing pollution, ecosystem is degrading.
We live in our Ecosystem, if it will get destroyed, our existence would be impossible. So, in order to save ourselves, we need to save it.
That's why biologists, concerned about ecosystem disruption
Hope this helps!
Answer:
greenhouses= desert
terrace forming=mountains
alley cropping= rain forest
hydroponics=desert
Explanation:
The enzyme that makes RNA knows where to start transcribing the DNA by knowing where to start transcribing at the promoter site. For example,<span> TATA Box in Eukaryotes. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
Answer: 1
Explanation: Simple sugars are not formed during cellular respiration.
