The spongy mesophyll of leaves is found on the top of leaves, where most photosynthesis occurs.

What is the best description of a molecule

Consider the way that muscle is stimulated to move and the way that the heart is stimulated to move. Based on the positions of the electrodes, what might some challenges be to measuring ECG signals during exercise?

In black bread mold spores are produced in structures called

Describe two types of chromosomal mutations.

Why can't people just use color and appearance to identify minerals

Use the following terms to explain how specialization occurs: DNA, gene expression, differentiation

How do plants obtain nitrogen?

All of the joints of the vertebral column are synovialâfreely movableâexcept one. which joint is not? a. zygapophyseal b. costovertebral c. intervertebral d. costotransverse

Sort the terms and phrases as to whether they function in or describe primary growth or secondary growth. drag each term or phrase to the appropriate bin. if the term or phrase describes both primary and secondary growth, drag it to the "both" bin.

Which planet is full with methane clouds?