What is the structure of a cell wall in a plant cell

How absorption of oxygen take place through atmosphere into blood?

Which is a renewable energy resource? A. uranium B. natural gas C. biomass fuel

When many species on earth become extinct in a short period of time what do you call it

What is solstice and equinox?

in pea plants, yellow seed color is dominant and green seed color is recessive. what will the generations look like assuming mendels method of crossing two true breeding parents with opposite traits is followed

R = red flowers r = white flowers According to Mendel's law of dominance, which statement best describes the result of a cross between parents with genotypes Rr and Rr? A) Only RR offspring will have red flowers.

What does the onset of menopause indicate about the number of immature eggs remaining in the ovaries?

What is on potential scientific benefit of the human genome project

What makes finches in the Galápagos Islands a good example of speciation?

Two genes, A and B, are found on the same chromosome. One homologous chromosome carries alleles A and B, whereas the other homologous chromosome carries alleles a and b.