Answer:
Natural or human-induced factors that directly or indirectly cause a change in biodiversity are referred to as drivers. Direct drivers that explicitly influence ecosystem processes. include land use change, climate change, invasive species, overexploitation, and pollution.
Neurotransmitters is your answer.
When a comet is close to the sun, the force from the sun's radiation pushing against the comet making a dust and/or gas tail. The comet being close to the sun also forms the coma of a comet due to it's radiation. The only thing that doesn't exist while being close to the sun is the nucleus. In conclusion, When a long period comet is farthest from the sun in its orbit, C. the Nucleus exist.
Hope this helped!
<span>heterotroph i'm sure</span><span />
D. fingernails
Skin, hair, and vertebrae are all the outer layer of the body and protect the body. The fingernails aren't part of that.