Answer:
Nitrogenous Base. Purines and pyrimidines are the two categories of nitrogenous bases. ...
Pentose Sugar. In DNA, the sugar is 2'-deoxyribose. ...
Phosphate Group. A single phosphate group is PO43-.
Explanation:
Q1. Heredity, cell and metabolism are the characteristic feature that are always present in living organisms
Q2. We shouldn't wrap the dissected body into the original wrapper and give instructor to dispose it off.
<h3><u>Explanation:</u></h3>
Q1. A living organism has several characteristic factors like it has cells, the cell performs metabolic activities and the organism maintains a heredity along its progenies. The living organisms must have cells which leads them to enclose their cellular components inside it. It also must have a metabolic activity to metabolize nutrition into required energy. It also do have a heredity to continue the race it belongs to.
Q2. In the dissection class, after the experiment with dissected body is over, the dissected body needs to be wrapped in fresh polythene or other bags that should be pasted with biohazard stickers and should be eliminated into specific containers that contains other biohazard wastes. The instruments must be washed thoroughly with some antiseptic and soap. The hand gloves should also be dumped within the biohazard containers wrapped in proper bags.
Answer:
The viral envelope serves several functions, including protecting the RNA or DNA molecule(s), evading recognition by the immune system, and facilitating virus entry. Despite these commonalities, viral envelopes come in a wide variety of shapes and configurations.
Explanation:
Answer:
Mahir noticed the plant he watered grew taller than those with less water
Explanation:in the process of the scientific method,an observation about an occurrence happens first before an hypothesis is formulated and tested .
Observation usually involves the the description of a phenomenon.
