Answer: Respiratory system, Excretory system, and Endocrine system.
Explanation:
Homeostasis is the process through which several organ systems work to maintain a stable internal environment in the body. There are three organs of the body which ar eaccurately maintained by homeostasis:
Respiratory system: High carbon dioxide content in the blood triggers faster breathing. Most frequently, the lungs exhale, which quicker extracts carbon dioxide from the body.
Endocrine system: High blood sugar content causes insulin release by an endocrine gland called pancreas. Insulin is a hormone which helps the cells absorb blood sugar.
Excretory system: A low blood level of water causes kidney accumulation of water. The kidneys contain more concentrated urine, so less water from the body is lost.
Hence, three critical areas are respiratory system, excretory system, and endocrine system that are accurately maintained by homeostasis.
The Andes mountains running along the western edge of south america were formed by collisions between the south american plate which is continental and the nazca plate which is oceanic. The collision reasons the continental crust to clasp and form fold mountains which are then scattered with volcanoes produced by melting of nazca plate as it is enforced down into the earth’s mantle.
Answer:
E) Has neither surface antigen A nor B on its erythrocytes
Explanation:
Blood contains the blood fluid called plasma and blood cells of different types. The cells of the blood also contain antigens on their surface which could activate immune system to eradicate the pathogens.
On the basis of the presence of these antigens, the red blood cells are categorized into four types that is A,B, AB and O.
The person with blood group A will have A antigens on the red blood cells, B blood group will have B antigens on the blood group and with O blood group will not have neither A nor B antigen on its surface.
Thus, Option-E is the correct answer.
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Answer:
The baby is clone of mature animal from which normal body cell was taken.
Explanation:
Three mothers or parents are involved in this process:
1. the one who donated the egg cell
2. the one from which body cell or DNA content was taken
3. the surrogate mother
The DNA content was removed from the egg cell. Thus, this animal did not contribute any DNA content to the cloned baby. Hence, it cannot be a biological mother of the clone.
3. This mother only contributes to nutrition and development of the baby. However, did not contribute any DNA content and thus, it is also not a biological mother.
2. The mature animal contributed whole genetic content of the clone. It is his or her DNA which was cloned into the enucleated egg. Thus, it is biological parent of the clone.
