Which part of the ear is first vibrated by a sound wave?

hammer

eardrum

anvil

cochlea

Which state of matter is made up of particles that are held firmly in place? A. gas B. solid C. liquid D. plasma

What is the approximate population of humans on Earth now a. 6 billion b. 3 billion c. 1 billion d. 60 billion

Select the name of the system to which the following organ belongs. pituitary nervous digestive excretory respiratory endocrine circulatory

Do muscular individuals automatically have a lower heart rate than less muscular individuals?

How would crickets be broken down by our body

What is the junction between a nerve cell and another cell called: axon, synapse, dendrite, none of the above

1. Synthesize Information How do you explain to the horse owner why this foal was born with OLWS while two previous foals were perfectly healthy? What would you tell the new parents of the baby girl about their prospects for having more children?

What organelle is the control center for the cell and holds the DNA

The primary structure of a protein refers to the sequence of amino acids that are linked together in a long chain. Which of the following common items would best represent the primary structure of a protein? O A.

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