Answer: Nerve cells and muscle cells are excitable because their cell membrane can produce electrochemical impulses and conduct them along the membrane.
Explanation:
Answer:
The first cells were most likely primitive prokaryotic-like cells, even more simplistic than these E. coli bacteria. The first cells were probably no more than organic compounds, such as a simplistic RNA, surrounded by a membrane.
Different biological bodies react completely different to bodily situations. So I am going to conclude that all of the above can upset the balance of an ecosystem.
Answer:
i did this quiz and the answer is Deciduous forests
Explanation:
Answer:
95 isoadenine bases; adenine bases cannot be determined
Explanation:
In Alien DNA;
- iA complementary with U
- iT complementary with A
- bG complementary with iC
- So if there were 95 nucleotide that contain the uracil then there should also be 95 isoadenine.
- Adenine binds with isothymine in alien DNA and there are no information of isothymine or other bG/iC bases is given, so we cannot determine the adenine bases.