3rd one .. hope this helped :)
The control group is the object that is untouched to see the difference. For example, you are trying to find what compost is better for plants. You have 3 plants and 2 different types of compost. you put one type in each plant except for one. The one without compost is called the control group.
Answer:
Option D
Explanation:
From the phylogenetic tree, it can be deduced that the eukarya were derived from the shared common ancestors much later that the bacteria and archae. This separation was based on rRNA data. The tree also shows that the archae appears to be more closely related to eukaryotes than to other peokaryotes.
Answer:
Sugars and phosphates
Explanation:
DNA is deoxyribonucleic acid.
The backbone is based on a repeated pattern of a sugar group (deoxyribose) and a phosphate group.
The image below shows one straightened-out strand of DNA with a backbone of alternating sugars and phosphates.
A is wrong. There is no ribose in DNA.
B is wrong. The nucleic acids A, C, G, and T join one strand of DNA to the other.
C is wrong. There is no RNA in DNA.
Answer:
I think it's A hope that's right