Which substance is a good natural resource because it is used by plants and in fertilizer, and sometimes can be used to keep things really cold? A. silicon B. oxygen C. krypton D. nitrogen

The last area of the brain to fully mature in late adolescence or early adulthood is the a. hypothalamus. b. prefrontal cortex. c. occipital cortex. d. medulla.

Which of the following statements is FALSE? a. DNA replication proceeds in only one direction around the bacterial chromosome. b. Multiple replication forks are possible on a bacterial chromosome c.

What objects would require the use of a large scale model

Name ten branches of biology

What is the average lifespan of a bottlenose dolphin?

How many chromosomes do humans have? how many copies in normal cells? How many pairs? How many copies in sex cells?

How many times has blastopore fate changed over the course of evolution? -o times -1 time -2 times - multiple times

What is unique about the water near Antarctica? How does it drive global ocean circulation?

A physician examines a patient who complains of breathing problems. She finds fluctuations in the patient's blood pressure and heart rate. The physician thinks it's because of a brain injury. Which part of the brain is affected? A. Cerebellum B.

In natural selection what determines which color grey or green is advantageous