Answer;
Amino acid side chains have many carboxyl and amino groups.
Explanation;
-A buffer solution is a solution that resists changes in pH when small quantities of an acid or an alkali are added to it. It is a chemical substance that helps maintain a relatively constant pH in a solution, even in the face of addition of acids or bases.
-Buffering is important in living systems as a means of maintaining a fairly constant internal environment, also known as homeostasis.Small molecules such as bicarbonate and phosphate provide buffering capacity as do other substances, such as hemoglobin and other proteins.
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Protein buffer systems depend upon proteins, as opposed to nonprotein molecules, to act as buffers and consume small amounts of acid or base. Since amino acids have the capability of reacting with both acid and base, they naturally act as buffers.
Eukaryotic cells have a nucleus and Prokaryotic cells do not.
Answer:
Kingdom Animalia
Explanation:
Kingdom Animalia is one of the seven kingdoms living organisms are classified into. The Kingdom contains organisms called ANIMALS. They are eukaryotic i.e. possess a membrane-bound nucleus. Animals are heterotrophic i.e. they rely on other organisms for their source of energy (food).
In order to break down this food via metabolism, animals need oxygen to do so. This process is called respiration, and it yields energy in form of ATP, which is used by their cells to carry out cellular functions. Therefore, a heterotrophic multicellular organism that relies on oxygen to metabolize its food belongs to KINGDOM ANIMALIA
Answer:
B and E
Explanation:
The correct answer would be that <u>both birds and mammals are vertebrates and are also endothermic.</u>
Both birds and mammals belong to the same animal kingdom. They also belong to the same chordate phylum but belongs to different classes under the phylum. However, they both belong to the same sub-phylum Vertebrata - a group of chordates with the vertebral column.
Birds (aves) and mammals represent different classes of animals. Birds lay eggs that later hatch when conditions are right to give rise to their young ones. Mammals, on the other hand, give birth to their younger ones and are able to produce milk through their mammary gland to feed them. The body of mammals is characterized by the presence of hairs that help insulate the body making them to be homoiothermic, unlike birds that of birds, where hair is replaced with feathers.
However, both birds and mammals are endothermic, that is, they both maintain a fairly constant body temperature irrespective of the temperature of their environment.
The correct options are B and E.
<span>The skin and the liver. The skin is the largest organ in the body and interacts with most other organs in the body in some way, due to it's size and coverage, it is difficult to repair easily using skin cells. The liver is one of the most complex organs in the body and as the detoxifying organ in the body is complex to repair.</span>
