Answer:
Because that's what they are made of.
A nucleic acid is made up of nucleotides, and nucleotides contain....
- a pentose sugar (carbs)
- nitrogenous base (ATCG)
- phosphate group
Answer:
Cacti evolved in the way that they are able to hold watter within themselves and their cells.
Explanation:
The right answer is geology; theory of continental drift.
The drift of the continents is a theory proposed at the beginning of the century by the physicist-meteorologist Alfred Wegener, to try to explain, among others, the similarity in the course of the coasts on both sides of the Atlantic, an observation which had intrigued others before him.
He possessed, besides, the courage, the fever of knowing, the independence, the intellectual rigor, the logic and a good dose of intuition. Armed with all this baggage, he was able to formulate a hypothesis on the movement of continents.
Answer:
Active transporters or ion pumps are transporters that convert energy from various sources—including adenosine triphosphate (ATP), sunlight, and other redox reactions—to potential energy by pumping an ion up its concentration gradient.
Explanation:
