What can we say about this person?
A. They are female.
B. They are male.
C. They have Down's Syndrome.
D. We cannot say anything about this
person without more advanced knowledge
of genetics.

When does dna replication(make a copy of itself)?

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

Ture or false evidence for evolution includes millions of fossils