Answer the following question given this paragraph: Ray-finned fish include the majority of living fish species, including goldfish, tuna, salmon, perch, and cod. They have a bony endoskeleton and a swim bladder. Their thin fins consist of webs of skin over flexible bony rays, or spines. The fins lack muscle, so their movements are controlled by muscles in the body wall. You can compare their ray fins with the fleshy fins of lobe-finned fish in Figure below . Q: What type of fish are the majority of living species? Choices: - cartilaginous fish - freshwater fish - lungfish - ray-finned fish A:
ray-finned fish
Answer the following question given this paragraph: Green cyanobacteria on a lake make food by photosynthesis. Q: Green cyanobacteria on a lake produce food through what process? Choices: - spermatogenesis - glycolysis - reverse transferase - photosynthesis A:
photosynthesis
Q: Answer the following question given this paragraph: Plants may not be able to move to another location, but they are able to change how they grow in response to their environment. Growth toward or away from a stimulus is known as a tropism ( Table below ). Auxins, a class of plant hormones, allow plants to curve in specific directions as they grow. The auxin moves to one side of the stem, where it starts a chain of events that cause rapid cell growth on just that one side of the stem. With one side of the stem growing faster than the other, the plant begins to bend. Q: What plant hormone allows plants to curve in a specific direction? Choices: - peptides - pheremone - apoptosis - auxin A:
A: auxin
Question: Answer the following question given this paragraph: Population density just represents the average number of individuals per unit of area or volume. Often, individuals in a population are not spread out evenly. Instead, they may live in clumps or some other pattern (see Figure below ). The pattern may reflect characteristics of the species or its environment. Population distribution describes how the individuals are distributed, or spread throughout their habitat. Q: How the individuals in a population are spread throughout their habitat is referred to as what? Choices: - habitual distribution - population habitation - population spread - population distribution A:
Answer: population distribution
*Question*
Answer the following question given this paragraph: Zones in the oceans include the intertidal, pelagic, and benthic zones. The types of organisms found in these ocean zones are also determined by such factors as depth of water and distance from shore, among other factors. Q: Name the 3 ocean zones. Choices: - coral, intertidal, apogean - amphidromic, cotidal, benthic - cotidal, intertidal, exotidal - intertidal, pelagic, benthic A:
**Answer**
intertidal, pelagic, benthic
*Question*
Answer the following question given this paragraph: Polar Bears. Thick fur and a layer of blubber keep polar bears warm in their Arctic ecosystem. Why do you think their fur is white? Why might it be an adaptation in an Arctic biome?. Q: What type of ecosystem do polar bears live in? Choices: - tropical - oceanic - natural - arctic A:
**Answer**
arctic