“cells seemed to he enveloped by a selectively permeable layer that allowed different substances to enter and leave cells at significantly different rates. He recognized that lipid-soluble substances penetrated readily into cells, whereas water-soluble substances did not. He concluded that lipids were present on the cell surface as some sort of a "coat." Irving Langmuir (1881-1957) proposed that that cells were covered by a lipid monolayer.”
Answer:living organisms need water to survive.
Some such as fish can breathe in water.
Others need water to break down food molecules or to get energy.
Explanation:
Structurally speaking, RNA and DNA are different. One clear distinction between the two is that RNA is single stranded, while DNA is double stranded. Another way they differ is found in their nitrogen bases. The four bases for DNA are Adenine, Thymine, Cytosine, and Guanine (think, ATCG). The bases for RNA are the same, except Thymine is replaced with Uracil (think, AUCG).
Another note is that RNA polymerase is unable to detect errors in base pairings, unlike DNA polymerase, but their syntheses are both in the 5’3’ direction. Hopefully this helps you answer this question.
Answer:
C. 29
Explanation:
the haploid number is always half of the diploid number so half of 58 is 29
There are several stages to a flowering plant, these are:
Seed germination
Plant growth
Flowering
Fruit production
Seed release
Death
The flowering stage is the state when the behavior of the ants must be observed.
