Which of theese is an abiotic factor pf an aquarium ecosystems?
a) plants growing from the gravel
b) fish swimmimng in the water
c) algae growing on the grass
d) gravel on the bottom of the aquarium

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

Each hereditary trait corresponds to