In meiosis the nucleus undergoes two divisions. Which of the statements about meiosis I is correct? #1
In meiosis I, the number of nuclei and chromosomes is quadrupled.

#2
In meiosis I, the number of chromatids is quadrupled and the number of nuclei is halved.

#3
In meiosis I, the number of chromatids is doubled and the number of chromosomes halved.

#4
In meiosis I, the number of chromosomes is halved and the number of nuclei is doubled.

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?