Where is brca2 located?
Options:
- (A) retina
- (B) lungs
- (C) chromatic
- (D) the eyes
- (E) chromosome
- (F) chromography
- (G) chrome
- (H) sensory neurons
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Let's think first: Chromosomes contain genes, which code for proteins. Another gene, named BRCA2, has also been identified. Chromosomes contain BRCA2.... So the answer is [(E)]

What enables bones to perform movement?
Options:
- (A) contraction
- (B) Energy
- (C) sensory neurons
- (D) looseness
- (E) Chemical energy
- (F) Vibrates
- (G) fur and fat
- (H) layers of fat
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Let's think first: Muscles can only contract. Bones work with muscles to perform movement. Contraction enables bones to perform movement.... So the answer is [(A)]

Urine has to pass through what as the bladder empties?
Options:
- (A) epidermal
- (B) body water
- (C) a sphincter
- (D) all liquids
- (E) mouth of rivers
- (F) alveoli
- (G) salt and water.
- (H) aqueous solution
--
Let's think first: Urine leaves the body through a sphincter in the process of urination. From the bladder, urine leaves the body. The bladder empties through a sphincter in the process of urination.... So the answer is [(C)]

What do nephrons filter?
Options:
- (A) Blood
- (B) matter
- (C) solutes
- (D) Energy
- (E) SO2
- (F) Gases
- (G) Energy.
- (H) cations
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Let's think first: Nephrons are the structural and functional units of the kidneys. Blood is filtered in the kidney. Nephrons filter blood.... So the answer is [(A)]

The basic functioning unit of life all share the same what?
Options:
- (A) structure
- (B) four limbs
- (C) organ
- (D) Chlorophyll
- (E) Energy
- (F) layers of fat
- (G) health
- (H) Energy.
--
Let's think first: All cells share some of the same structures and basic functions. Cells are also the basic functioning unit of life. The basic functioning unit of life all share the same structures.... So the answer is [(A)]

When cells start to divide uncontrollablly, they may form a what?
Options:
- (A) anemia
- (B) tissue
- (C) fever
- (D) cell
- (E) organ
- (F) fibroid
- (G) acid rain
- (H) illness
--
Let's think first: Cells that divide uncontrollably may form a tumor, or abnormal mass of cells. For example, a fibroid is a tumor, a wart is a tumor, and cancers are tumors. Cells that divide uncontrollably may form a fibroid.... So the answer is [(F)]