The network of all the inter-related food chains in a biological community.
The sequence of who eats whom in a
biological community.
food web
autotroph
An organism that gets its energy by
eating other organisms.
heterotroph
An organism that makes its food from
light or chemical energy without eating.
carnivore
An organism that eats plants.
herbivore
An organism that eats meat.
primary consumer
A meat-eater that eats primary
consumers.
secondary consumer
A meat-eater that eats tertiary
consumers.
A meat-eater that eats autotrophs.
tertiary consumer
quaternary consumer
A meat-eater that eats secondary
consumers.

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.