Top answers

What is homeostasis?

Homeostasis is the maintenance of a constant internal environment in organisms despite external changes. Homeostasis ensures that cells within an environment are able to meet their needs and function appropr...
YB
Answered by Yinka B. • Biology tutor
4318 Views

What was the work done by Gregor mendel?

In the mid-19th century Gregor Mendel carried out breeding experiments on plants. He worked on the characteristics of pea plants. One of his observations was that the inheritance of each characteristic is de...
TR
Answered by Thomas R. • Zoology tutor
2487 Views

What is a plosive consonant and what is its effect?

A plosive consonant is an abrupt sound made by closing the mouth then releasing a burst of breath. The plosive consonants in English are B, P, T and D. Their effect, especially when used repeatedly is to cre...
FM
Answered by Felicity M. • English tutor
105332 Views

What is the difference between a virus and a bacteria? What is an example of each?

A virus is non-living and cannot be treated by antibiotics, they do not have a cell wall. Viruses are generally smaller and require a host to survive. A bacteria can be affected by antibiotics and can surviv...
TR
Answered by Thomas R. • Biology tutor
18003 Views

Tim stretches by leaning against a pole that is 1.5 metres tall and at a right angle to the floor. Tim is standing 0.5 metres away from the pole, how tall is Tim; leaving your answer in terms of metres? (2.d.p)

This can be solved using Pythagoras. We know that the pole is 90 degrees to the floor so the height of the pole is the opposite side. The distance between Tim and the pole is therefore the adjacent and hence...
MS
Answered by Morgan S. • Maths tutor
3890 Views