Answer: Pollution, climate change, habitat loss, or invasive species
Answer: 50%
<span>Life on Earth appears to be on its way to extinction because of the carbon being pumped into our atmosphere.</span>
<span>Biologists reported that one in five species on Earth show signs of extinction, and unless urgent action is taken to save the planet’s biosphere, </span><span>scientists predict that 50% of species will be driven to </span>extinction by the year 2100.
<span>.</span>
Answer:
D.electrical signals and chemical neurotransmitters
Explanation:
chemical transmitters are the language that neurons use to connect eachother.
I believe A:Both have reproductive cells with flagella
