Sperm cells and egg cells are needed for human sexual reproduction. Describe in detail the type of cell division that produces sperm cells. (4 marks)

What is the function of tendril? How is the tendril of pea different from that of pumpkin?

An enzyme was isolated from digestive juices taken from the small intestine. an experiment was set up to test the ability of the enzyme to break down protein.

A pure-breeding fruit fly with curled wings mates with a pure-breeding fruit fly with normal (straight) wings. The F1 mate with each other to produce an F2 generation that consists of 160 flies with curled wings and 80 with straight wings.

The molecular formula for glucose is C6H1206. What would be the molecular formula for a molecule made by linking three glucose molecules together by dehydration reactions? A) C6H10O5 B) C18H32016 C) C18H10015 D) C3H603 E) C18H36018

For many years, experiments showed that light had wave-like properties. For this reason, scientists described light as a wave. More recently, experiments produced data that could not be explained by the wave theory of light.

An increase in the popularity of corn ethanol as a fuel increases the demand for corn around the world, causing the price to rise __.

What role does energy play in cells?

Which of the following is not a contributing factor to environmental policy decisions? a. human health b. availability of natural resources c. environmental health d. none of the above

A 32 year old female presents with lower leg pain, with swelling and redness. which finding could have caused her condition

Which characteristics work well in a dichotomous key? a) smooth or rough b) green or round c) triangle or purple d) tall or bumpy