The most appropriate answer would be Winter !!
As in southermost past there is only two season winter and summer !! So as the earth is moving away from sun and thus the southern part will be far away and northern part will be facing sun !! So C !!
Multicellular organisms use different types of cells to function not just one cell. If cells grew larger that cell would be more demanding.
Scientists prove their hypothesis is true about Scientists can never "prove" their hypotheses are true, because some future experiment, possibly using new technology not currently available, might show the hypothesis to be false after all.
Frogs reproduce by a special kind of embrace called "amplexus" which is an external fertilization that does not occur inside the female's body.
During mating (amplexus), the male frog grasps the female frog's trunk with his forelimbs.
The female frog discharges eggs into the water and then the male frog sheds the sperms over those eggs.
The main purpose of the organ system shown in the provided diagram is that it <span>provides support for the body and protects delicate internal organs.</span>