Answer: As matter cycles and energy flows through living systems and between living systems and the physical environment, matter and energy are conserved in each change. The carbon cycle provides an example of matter cycling and energy flow in ecosystems.
Explanation:
Answer:
B
Explanation:
U(uracil) pairs with A(adenine), G(guanine) pairs with C(cytosine)
A synonym for observation could be remark.
D) Hypotonic
Aka when skin cells swell from excess water
