Top answers

Describe how HIV replicates in the human body

The HIV life style has 7 stages. The first is binding: HIV has glycoproteins embedded in the membrane that help it to bind to CD4 receptors on the surface of a human cell. Next, the HIV envelope and human ce...
MM
Answered by Maree M. • Biology tutor
9115 Views

Why do you want to study medicine?

There are many reasons why I want to study this subject, and it mostly stems from a few major points. First, I have a keen interest in science, particularly human biology. The scientific field fascinates me,...
CP
1807 Views

Fossils can be found pyritised. Describe and explain how pyritisation occurs.

Pyritisation is the replacement of original material by iron pyrites. The environment needs to be anaerobic, where the only live organisms are sulfur bacteria. This bacteria will then use the sulfur in the e...
HG
Answered by Harriet G. • Geology tutor
5060 Views

What are stem cells?

Stem cells are human or plant cells which can turn into (differentiate) other cell types, more specialised for their job. They often help with growth of tissues and development of embryos. Human stem cells a...
BF
Answered by Beth F. • Biology tutor
3186 Views

Solve the following inequality: 2x^2 < x+3

2x 2 &lt; x+3, 2x 2 - x - 3 &lt; 0, (2x - 3) (x + 1) &lt; 0, Positive quadratic. Roots: x = -1 and x = 3/2, Therefore, x takes values greater than -1 and less than 3/2.
OM
4066 Views