Answer:
b. thick wall.
Explanation:
Endospore is a structure formed by some bacteria, that help them survive unfavourable conditions (e.g. lack of nutrients). This survival strategy of some bacteria (usually Gram+ bacteria) help them stay dormant for a while, until stressful conditions stop. A thick wall composed of many layers (exosporium, spore coat, spore cortex, core wall) of the endospore is what provides resistance to different stressful chemical and physical factors such as UV radiation, temperature, chemical damage etc.
Buffers in our blood are able to neutralize changes in the bloods pH.
Answer;
D generic engineering.
Explanation: Genetic engineering is the process of altering the genetic characteristics of species by substituting another species gene into them using biotechnology. It is the type of technology using to change the genetic make-up of cells.
It Is a genetic modification or manipulation to to transfer a gene of bioluminescence into that of mosquito lavae.
