(Physical Science) A ball and stick model of a molecule of formaldehyde, CH2O, is made from the following components:
-one black ball
-one red ball
-two white balls
-three sticks

What do the sticks represent?
A. oxygen atoms
B. hydrogen atoms
C. carbon atoms
D. bonds between atoms​

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.

During the final stage of the cell cycle, cytokinesis allows the cell to finish dividing, creating with copies of dna. can someone fill in the blanks?