Which of the following best describes a structure where sister chromatids are attached to each other?( I will mark brainliest) Cytokinesis
Sister chromatid
Spindle fiber
Centromere

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?