What can chordates go through?
Options:
- (A) disease
- (B) loss
- (C) skin
- (D) alveoli
- (E) death
- (F) painful
- (G) shock
- (H) illness
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Let's think first: Chordates have a complete digestive system and a closed circulatory system. Shock is a disruption of the circulatory system. Chordates can experience shock.... So the answer is [(G)]

What can lead to the formation of multicellular embryo in venter?
Options:
- (A) Something that makes plants green
- (B) Something made from fermented ricce
- (C) A compound that donates proton
- (D) By wind and rain
- (E) reproduction
- (F) Fertilization of gametes
- (G) metabolic reaction
- (H) heat produced
--
Let's think first: Gametes then unite in fertilization and form a diploid zygote. Diploid zygote forms multicellular embryo in venter. Fertilization of gametes can lead to the formation of multicellular embryo in venter.... So the answer is [(F)]

What are one thing the combination of proteins and dna make up?
Options:
- (A) alleles
- (B) sperm
- (C) insects
- (D) embryos
- (E) fusion
- (F) PDAs
- (G) humans
- (H) complex
--
Let's think first: Chromosomes are coiled structures made of DNA and proteins. An egg or sperm with an extra chromosome or missing a chromosome is then made. Eggs and sperm have coiled structures made of DNA and proteins.... So the answer is [(B)]

Evolution is a change in the genetic traits of living things over what?
Options:
- (A) universes
- (B) HIV
- (C) long
- (D) extinct organisms
- (E) dead things
- (F) time
- (G) H 2 O
- (H) years
--
Let's think first: Evolution is a change in the characteristics of living things over time. Almost all physical characteristics are genetic traits, inherited from parents. Evolution is a change in the genetic traits of living things over time.... So the answer is [(F)]

What senses differences when you hurt your skin?
Options:
- (A) touch receptors
- (B) sensory neurons
- (C) eyes
- (D) Veins and arteries.
- (E) matter vibrating
- (F) light receptors
- (G) smell
- (H) an organism's body
--
Let's think first: Some touch receptors sense differences in temperature or pain. If the skin is painful, seek medical attention. If your skin hurts, your touch receptors will sense differences.... So the answer is [(A)]

Cells pretty much al share this one characteristic:
Options:
- (A) sensory neurons
- (B) voltage
- (C) aerobic capacity
- (D) microscopic
- (E) eukaryotic
- (F) bacteria
- (G) prokaryotic
- (H) layers of fat
--
Let's think first: Cells vary in size as well as shape, but all cells are very small. All cells are microscopic in size. Cells can vary in shape, but they are all microscopic.... So the answer is [(D)]