B. organisms that use the same resource
( example) there are snakes and Hawks they are both going for the mouse now if all of their kind goes for the exact same Mouse species that Mouse will go extinct or after the races are gone the snakes in the Hawks will have to change to a different resource keep living
true becuase they belive that it comes from aliens
the answer is letter B, 3 kingdoms.
Answer:
I think it is retina. Sorry if I'm incorrect
The lacrimal<span> glands secrete tears which act to lubricate and protect the cornea and eyeball from injury which may result from small particles such as dust. Tears are a watery fluid with an electrolyte content similar to that of plasma and contains: bactericidal enzymes known as lysozyme and lactoferrin.</span>
