Biology Answers

Chemical tests on components of nucleic acids

Mention four methods of controlling greenhouse climate?

The edible part of most fruits is the

Draw a punnet square that represents the cross between a homozygous mouse with black fur and a homozygous mouse with white fur

The rigid L-shaped member ABF is supported by a ball-and-socket joint at A and by three cables.

For the loading shown, determine the tension in each cable and the reaction at A

Describe 4 stages in which the mammalian heart pumps blood? (10)

How does the mammalian eye focus an image? In your description name the important physical structures in image formation, define the focal point and explain what accommodation is and why it's important? (30)

Why it's so difficult to localize sound with only one ear? How does having two ears help to localize sound? (10)

A pH of 4 indicates that