Answer:
1) types of music - independent
performance in doing homework - dependent
person - control
2) period of time - control
number of flowers - dependent
types of rose bushes - independent
Explanation:
Answer:
elements of a civilization
Explanation:
idk
She should take her books and go to a local library to study.
Answer:A
Answer:
The average trait value changed in one direction.(In this case, larger size)
Explanation:
In evolution a natural selection can be disruptive, directional or stabilizing
In stabilizing no extreme trait is favored hence provides intermediate values .
Disruptive selection both extreme traits are favored over the intermediate trait.
Directional, the enviroment will favor the survival of one trait hence a change in direction either towards the left or the right.
In the case of swallow cliff mortality, selection favored the larger size.
Answer:
there were only anaerobic heterotrophic bacteria (the primordial atmosphere was virtually oxygen-free).
