What generally carries something bright red?
Options:
- (A) bears
- (B) veins
- (C) arteries
- (D) mammals
- (E) nerves
- (F) fur seals
- (G) Cars
- (H) bones
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Let's think first: Arteries generally carry oxygen-rich blood. Oxygen-rich blood is bright red. Arteries generally carry something bright red.... So the answer is [(C)]


Wetlands are extremely important 
Options:
- (A) water conservation
- (B) global ecosystems
- (C) Desert Ecosystem
- (D) Terrestrial ecosystems
- (E) important habitats
- (F) the environment
- (G) food and shelter
- (H) Forest Ecosystems
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Let's think first: Wetlands are extremely important biomes. Biomes are global ecosystems. Wetlands are extremely important global ecosystems.... So the answer is [(B)]


Which of the following has the most complex nervous system?
Options:
- (A) animals
- (B) nerves
- (C) fur seals
- (D) humans
- (E) elephants
- (F) Jellyfish
- (G) bears
- (H) kalenchoes
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Let's think first: Most invertebrates have a more complex nervous system. Jellyfish and insects are invertebrates. Jellyfish have a more complex nervous system.... So the answer is [(F)]


Where in tropical regions can you find cobra bobo?
Options:
- (A) an organism's body
- (B) more abundant
- (C) layers of fat
- (D) swamp vegetation
- (E) colder and wetter
- (F) Wet weather
- (G) in moist soil
- (H) dry conditions
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Let's think first: Caecilians can be found in moist soil near rivers and streams in tropical regions. Cobra bobo is the local name for caecilian. Cobra bobos can be found in moist soil near rivers and streams in tropical regions.... So the answer is [(G)]


What are cell walls made of?
Options:
- (A) fossils
- (B) peat
- (C) moss
- (D) cations
- (E) Carbon
- (F) Fiber
- (G) Fungi
- (H) sodium
--
Let's think first: Plants use cellulose for their cell walls. Basically, fiber is cellulose . Cells walls are fiber.... So the answer is [(F)]


What is the major thing that biological membranes consist of?
Options:
- (A) chemicals
- (B) glucose
- (C) lipids
- (D) Energy
- (E) complex
- (F) oxygen
- (G) matter
- (H) an ion
--

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Let's think first: Lipids may consist of fatty acids alone, or they may contain other molecules as well. All biological membranes contain lipids as the major constituent. All biological membranes have lipids as the main consituent which consist of fatty acids.... So the answer is [(C)]