The cells that are on each side of a stomata and open and close it like a mouth are called guard cells meristem cells parenchyma cells collenchyma cells

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

Amniocentesis is a process in which amniotic fluid is taken from the mother's womb to identify any genetic abnormalities in the fetus. how would the discovery of the human genome contribute to this process?

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass