Answer:
<em>The correct option is cell surface markers.</em>
Explanation:
The immune cells of our body detect foreign particles and generate responses so that our body can get rid of them. The foreign particles are often termed as antigens.
The immune cells such as antibodies possess cell surface receptors which detect the foreign objects or antigens. When the cell surface receptors detect any antigen they immediately recognize that a foreign particle has invaded the body and they then identify it and start to generate response.
<h2>Sewerage & water system</h2>
Explanation:
- The purpose of municipal water delivery systems is to move consumable water from a water treatment office to private purchasers, for use as drinking water, water for cooking, water for sterile conditions, and other water use in a household situation. Water supply additionally is basic for business furthermore, industry to work in a metropolitan domain.
- A civil water supply systems can't support its clients except if there is a ceaseless stockpile of water to meet household utilization needs in the broadest sense and water requirements for auxiliary fire assurance. Water sources should be chosen cautiously to ensure that this central necessity is met.
- Hence, the right answer is "a fair and accurate evaluation of sewerage & water system"
I got D, C, A, B, C, B, D, C.
C (proteins) instead of D (nucleic acids) because if you look at a nucleic acid structure, you'll see that sulfur is not found in it. Sulfur is found in two amino acids (methionine and cysteine), which means it could be found in proteins since amino acids build proteins
Answer:
d) The enzyme changes shape and can no longer speed up the reaction
Explanation:
Enzymes aare protein in nature therefore sensitive to changes in temperature. Most enzymes have an optimum temperature ranging from 35-40°c. As the temperature increases, optimum temperature is reached where the rate of reaction is maximum. Temperatures above 40-63°c denatures the enzymes making them non effective thus the reaction decreases sharply.
