A phylogeny tree<span> or evolutionary </span>tree<span> is a branching diagram or "</span>tree<span>" showing the inferred evolutionary relationships among various biological species or other entities—their </span>phylogeny<span>—based upon similarities and differences in their physical or genetic characteristics.</span><span />
First answer is A
Second answer is C
The nitrogen cycle could not exist without bacteria. Bacteria that lived inside the ground, catch the ntirogen that has been fixed and convert it into nitrate. This nitrate than used as a nutrients during photosynthesis from which the plants produce another fixed nitrogen and completed the cycle.
Answer:
hope it helps you....
Explanation:
Muscle cells contain protein filaments of actin and myosin that slide past one another, producing a contraction that changes both the length and the shape of the cell. Muscles function to produce force and motion.
Answer:
b
Explanation:
In this question, the context for exponential growth is assumed to occur naturally. Because lab experiments are not natural and must happen in well controlled studies, it cannot limit exponential growth.
