Answer:
limiting factors
Explanation:
The ecological optimum represents the value of the factors within the ecological valence at which the life processes of a species take place best. The upper and lower limits of an ecological valence are its maximum and minimum. Beyond these limits, physiological processes are interrupted and death occurs.
Answer:
C.
Explanation:
A theory is not a guess but an explanation of <u><em>why</em></u> things happen.
B- Electron transport chain
Answer:
Radial symmetry is the arrangement of body parts around a central axis, like rays on a sun or pieces in a pie. ... The two halves of a radially symmetrical animal may be described as the side with a mouth (oral side”) and the side without a mouth (aboral side
The spindle fibres form
brainliest hope this helps
