What do organisms in the lowest trophic level use as food?
Options:
- (A) Organic compounds
- (B) food and shelter
- (C) heat energy
- (D) Chemical energy
- (E) Chlorophyll
- (F) members of their own species
- (G) scarce resources
- (H) inorganic molecules
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Let's think first: Producers make food from inorganic molecules. Primary producers make up the lowest trophic level. The lowest trophic level makes food from inorganic molecules.... So the answer is [(H)]


What is under the same family as worms?
Options:
- (A) animals
- (B) parasites
- (C) bacteria
- (D) eels
- (E) ant
- (F) leeches
- (G) snakes
- (H) infected
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Let's think first: Annelids are worms such as the familiar earthworm. Annelids include earthworms and leeches. Leeches are related to worms.... So the answer is [(F)]


_ is how organisms grow and repair themselves.
Options:
- (A) complex
- (B) recycling
- (C) properties
- (D) fusion
- (E) fission
- (F) bacteria
- (G) Mitosis
- (H) potatoes
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Let's think first: Cell division is how organisms grow and repair themselves. Mitosis is cell division. Mitosis is how organisms grown and repair themselves.... So the answer is [(G)]


What is rain that absorbs into the earth called?
Options:
- (A) aqueous solution
- (B) heat energy
- (C) soilwater
- (D) groundwater
- (E) peachleaf willow
- (F) mud
- (G) puddle
- (H) water vapor
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Let's think first: Some precipitation that falls on land may soak into the ground, becoming groundwater. Rain is also known as precipitation. Rain that falls on land may soak into the ground and become groundwater.... So the answer is [(D)]


Where do most green producers live at on earth?
Options:
- (A) more abundant
- (B) animals
- (C) agriculture
- (D) Earth
- (E) survival
- (F) alluvial
- (G) Conifers
- (H) everywhere
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Let's think first: Plants live just about everywhere on Earth. If the plant is green, it is a producer. Green producers live just about everywhere on Earth.... So the answer is [(H)]


What can fatty acids be combined with, in addition to carbon and oxygen?
Options:
- (A) Sodium
- (B) Energy.
- (C) glucose
- (D) Carbon Dioxide
- (E) Fuel cells
- (F) Uranium
- (G) Hydrogen
- (H) Energy
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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. Lipids Lipids are also composed of carbon, oxygen and hydrogen. Carbon, oxygen, and hydrogen can be combined with fatty acids.... So the answer is [(G)]