The stomata closes down at night when there is no sun and there's no photosynthesis. It also closes down when the air is dry and when it's hot so as to prevent excessive loss of water.
Answer:
A theory.
Explanation:
A scientific theory is the product of related observations supported by evidence acquired through scientific investigation. An example of a theory includes the theory of evolution (which explains observations in the fossil record, phylogenetic patterns observed in species, and these results have been aquired through scientific investgation and analysis of things like the genome of species, and archeaological evidence)
Answer:
C
Explanation:
A ribonucleotide is very similar to a deoxyribonucleotide with the major difference being that they have a H instead of an OH in the 1’ carbon. Each ribonucleotide also has a phosphate molecule in their 5’ carbon like DNA. It is this phosphate that bonds with the 1’ carbon of the next monomer to form a phosphodiester bond through a condensation process – that releases a water molecule.
Answer:
The cell membrane structure is very important because everything alive has cell membranes. The model used to describe the cell membrane is called the <u>fluid mosaic</u> model.
Dna contains sulfur and little phosphorus
