What do scientists estimate is the approximate age of earth?

A. 660 million years

B. 3.5 billion years

C. 4.6 billion years

D. 12.2 billion years

The glenoid cavity is where the Select one: a. clavicle articulates with the scapula. b. clavicle articulates with the sternum. c. humerus articulates with the clavicle. d. humerus articulates with the scapula. e. radius articulates with humerus.

What is the name for the observations and data on which a scientific explanation can be based

What is the correct order of biological organization from broadest to most specific

What is not a function of the stomach

What does the notation Rr mean to geneticists? heterozygous alleles homozygous alleles dominant alleles recessive alleles

How is the brain able to differentiate between each sensory modality? A The action potentials, sent along the same nerve tracts, get sorted by the thalamus B The action potentials for each sense are sent along separate nerve tracts.

Nearly all cells in an organism contain identical DNA, and each DNA strand may contain hunndreds or thousands of individual genes. Is it likely that a cell would transcribe all the genes within its nucleus simultaneously. A. True B. False

Which of the following is true regarding brain development and aging? a. Blood flow is increased in the brain. b. The brain uses more oxygen. c. The brain becomes smaller and lighter. d.

Which stage of the cell cycle involves cell growth and DNA replication? A) mitosis B) cytonesis C) interphase D) prophase

Approximately what percentage of a human's DNA is used for coding information for the synthesis of proteins?