Pervez peeled an apple and kept it on a plate. After half an hour, he found that it looked slightly brown. Why did this probably happen?

How does the radiation energy reach Earth?

What is the most important definition a coder should know?

The mesophyll contains the only cells in the leaf with chloroplasts. These cells are responsible for

Which statement is NOT true of the nucleus? A.) Enclosed by a single membrane. B.) Materials pass in and out through pores in the membrane. C.) Present in eukaryotes but not archaea.

What are cells that can become any other cell type called

Making candy usually requires heating ingredients so that large amount of sugar dissolves. If the candy solution cools and extra solute remains dissolved, the solution is

What are some of Galileo's Experiments?

When bacteria spoil food, they make the food look and smell bad. when bacteria are used to produce food, they a. stop the food from growing. b. add toxins to the food. c. change the flavor of the food. d. stop the food from changing?

A population of snails exhibits two morphotypes - (i) dominant dark color [DD and Dd], and (ii) recessive light color [dd]. You observe in a population produces 25% homozygous dominant, 43% heterozygous, and 32% homozygous recessive.

Billy Smart had been experiencing ophthalmalgia since completing a deck in his backyard. He asked his optician about it and she suggested Billy see an ophthalmologist.