The most difficult environmental issue that the Khmer Empire dealt with was _______.
Fill in the blank(s) with the appropriate word(s).
Answer: monsoons
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Which one of the following properties of water is primarily responsible for the ability of trees to draw water up from the roots to the leaves?
A. polarity B. density C. solvent capability D. high surface tension E. pH neutrality
Ribosomes are not considered to be organelles because they are not bounded by a membrane.
Answer the following statement true (T) or false (F)
What follows from the fact that reabsorption of salt increases the osmolarity of the blood compare with the filtrate?
What will be an ideal response?
Bacteria reproduce asexually, whereas most plants and animals reproduce sexually. Which is the better method?
A) Asexual reproduction, because there are more bacteria than plants and animals. B)Sexual reproduction, because there are more plants and animals than bacteria. C) Asexual reproduction, because binary fission is more efficient. D) Sexual reproduction, because it produces more variation. E) Neither method is better; each is effective in different environments for different kinds of organisms.