Search our library of homework questions

Top answers

All subjects

All levels

How does the pancreas control blood sugar levels?

In humans, the pancreas can sometimes be described as an endocrine gland. This means it releases some of its substances staight into the bloodstream; this is the mechanism used to secrete...

Answered by Madura N. • Biology tutor

7543 Views

What are the main stages stages of mitosis?

IPMAT(C)

Interphase - normal cell growth (non mitotic)

Prophase

Metaphase

Anaphase

Telophase

Cytokinesis (cytoplasm division)

Answered by Miss T. • Biology tutor

4578 Views

Determine a vector expression for the position of a particle whose velocity is (3t^2 - 8)i + 5j m/s.

r(t) = [integral] v(t) dt

= (t^3 - 8t + C)i + (5t + C)j m

Answered by Matteo T. • Physics tutor

2220 Views

Find, using integration, the work done in compressing a spring by a distance x.

[integral from 0 to x']dW= [integral from 0 to x'] F(x') dx'

=[integral from 0 to x']kx' dx'

=1/2k

Answered by Matteo T. • Physics tutor

4377 Views

What is a reflex arc?

A reflex is an involuntary response to a sensory stimulus. The pathway of neurones involved in a reflex is known as a reflex arc. A reflex arc - such as quickly moving your hand away from a hot flame - in...

Answered by Sundas B. • Biology tutor

16511 Views