Answer:
A) A single base pair change.
Explanation:
Point mutation is a change in a single base pair of a nucleotide. This comes as a results of mistakes made during DNA replication, induced by ultravoilet radiations, extreme heat and X-rays. There are three types of point or substitution mutations; change, deletion and insertion. The nucleotide bases are either mistakenly inserted, changed or deleted, thus changing the resulting protein or amino acid being coded for.
Answer:
Internal response; when a person is infected by a bacteria or virus, the immune system springs into action to fight against the infections. Geotropism and phototropism are dealing with plants and they way they grow, while fight or flight is a physiological reaction by the human body in stressful situations-- so they are incorrect.
Explanation:
If you get it right, can I have brainliest? :)
<span>one of the special feature of bacterial cells that helps it survive in hostile environment is its : ability to form endospores
Endospores are resistant to chemical, stress, and some form of radiations, which make bacteria abble to survive in the environement</span>
C. the cell membrane.
the membrane let's things in and out of the cell.
Answer;
-To release or generate energy
Explanation;
-The main reason that cells carry out cellular respiration is to release or generate energy that drives cellular processes such as growth, and reproduction.
-Cellular respiration is the process by which animal and plant cells break down nutrients such as glucose to generate energy in the form of ATP, that is used to drive cellular processes such as growth, reproduction and transport among others.
