It is useful for an ecologist to identify the keystone species in an ecosystem because the keystone species is important to maintaining the stability of an ecosystem, and any changes in the keystone species population shows that there is changes in ecosystem health.
Answer:
Answer is below
Explanation:
Frogs and humans share the same basic organs. Both have lungs, kidneys, a stomach, a heart, a brain, a liver, a spleen, a small intestine and a large intestine, a pancreas, a gall bladder, a urinary bladder and a ureter. ... On the whole, their organ structure is similar, but frogs have considerably less complex anatomies
In geometry the base is the side or face of a geometric figure to which an altitude is drawn,
1.answer: As the focal distance increases the eccentricity decreases making the planets orbit more circular 2.answer:0
