A) Prophase is the first phase and in this very phase Chromosomes starts coiling and nuclear membrane began to disintregate !!
Birds and butterflies are very anatomically different, so even if their wings perform the same function, they probably evolved separately. This is called convergent evolution. The bat would be another example that fits in this category in regards to flying.
Answer:
Erythrocytes, or red blood cells, are the most numerous of the formed elements. <u>Erythrocytes are tiny biconcave disks, thin in the middle and thicker around the periphery. </u>The shape provides a combination of flexibility for moving through tiny capillaries with a maximum surface area for the diffusion of gases.
The main difference between arteries and veins<span> is the job that they do.
</span>
Arteries<span> carry oxygenated blood away from the heart to the body, and </span>veins<span> carry oxygen-poor blood back from the body to the heart. Your body also contains other, smaller blood vessels.</span>
Their climate, and dominate vegetation.