Are drugs with chemicals that slow the functioning of the brain and the central nervous system.

Downers or depressant

Explanation:

Depressants are the drugs which act by reducing the neurotransmission which lowers the physical and mental activity of the brain.

The depressants are used to treat the effects of insomnia, anxiety and acts as a sedative. The alcohol and cannabis are also considered as the natural depressants and the synthetic depressants include the barbiturates and Benzodiazepines.

Thus, Downers or depressant is the correct answer.

DEPRESSANTS SHORT-TERM EFFECTS

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation:

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)