Absolute dating can be determined by which of the following. Select all that apply.

A. tree-ring patterns

B. Earth's magnetic field

C. a historian's journal

D. coral growth cycle

E. radioactivity

F. photo comparison

What are the two major sources of water vapour in the water cycle

Hannah a 14 year old girl undergoing a physical examination before being admitted to summer camp was found to havea loud heart murmur at the second intercostal space on the left side of the sternum?

Why is high blood pressure needed in the glomerulus?

How can you distinguish between early and late anaphase?

Explain in your own words why simple cells in V1 give larger responses when the bars are parallel to the axis of elongation than when they are perpendicular to them.

On a cold day let the water in the pan freeze outdoor

Which of the following is a function of the rough endoplasmic reticulum? storing calcium ions synthesizing receptor proteins detoxifying drugs synthesizing steroid hormones

A bacterium grows by using molecules obtained from its environment to build new molecules. Describe how the structure of the plasma membrane aids in the bacterium's ability to exchange necessary materials with its environment.

Which of the following is an environmental consequence of the use of the use of fossil fuels?

A food manufacturer is packaging a new food product that is susceptible to mold and bacterial growth. the food additive he most likely would use to protect the food is: