I believe it is A.Simple epithelia form impermeable barriers. If I am not right I'm really sorry. I don't really know much about it :)
Mountain range; when plates are pushed together, they cause rock to push up. After thousands of years, a mountain will be formed after the molten rock cools.
You WILL lose thermal energy cuz heat will always flow from warmer to cooler.
Hope it helps!
This is all about dominant and recessive genes. According to the picture it looks like the yellow flowers have the dominant genes YY and the green flowers the recessive yy. You breeded the YY with the yy to get Yy. Now you have a plant with the dominant and recessive gene. The green flowers are recessive so if you breed 'y' with anything you get yellow flowers whether they only have the'Y' gene or the both 'Y' and 'y'.
The answer is a compound leaf!! Hope this helps ;)
