a nitrogenous base, a sugar, and a phosphate. A nucleotide is the basic subunit of both DNA bad RNA. It contains a base with nitrogen, a 5-carbon sugar and a phosphate group.
Hi!
I would say D, diphtheria, because it is eaisly prevented by a vaccine and it I'd a nose and throat disease.
Hope this helps!
Answer:
<u>Dominant phenotypes</u> will manifest when either or both chromosomes have the same dominant alleles, whereas <u>recessive phenotypes</u> will only manifest when both chromosomes have the same recessive alleles. Dominant alleles are shown with a capital letter and the recessive allele with the corresponding small letter. Recessive alleles will be overridden by the presence of a dominant allele. Two recessive alleles (no dominant) need to be present for the recessive characteristic to be expressed in the phenotype .
Dominant + recessive > dominant
Dominant + dominant > dominant
Recessive + dominant > dominant
Recessive + recessive > recessive
Answer:
The populations become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring.
Speciation is the evolution of one species into two different kinds, and when they become isolated, that is the final step, since they cannot interbreed any longer.
Answer: Option D.
Protist.
Explanation:
Amoeba and paramecia belong to kingdom protist.
This kingdom comprises of Eukaryotic organisms that are multicellular or unicellular. They have nucleus and membrane bound organelles which are use in performing life processes. Some protist are free living such as algae while some are heterotrophic and some are parasitic. They have Mitochondria and the live in moist or aquatic environment. They have cilia or flagella for loccomotion.