Ms. Snyder's students were studying living things and energy. They emptied a package of yeast into a cup of warm water Next they added 5 grams of sugar. After 15 minutes, the students noticed bubbles
forming on the surface of the water. Using a dropper, they put a sample of the liquid on a glass slide and
looked at the sample with a microscope. The yeast cells were growing and reproducing. The bubbles
were a by-product of the yeast using the sugar for energy
What were the bubbles made of?
A Water
OB Oxygen
OC Hydrogen
SD Carbon dioxide

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."

the correct answer in apex is tissue development, i know because i just had this question

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.