Astudent looks at a slice of tissue on an unlabelled microscope slide. the student concludes that the tissue is not from an animal because the cells in the tissue have
a. membrane-bound organelles
b. nuclei
c. cell membranes
d. cell walls

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

How many species of living things are alive on earth today? more than 1,000,000 none of these answers are correct 100-500 1,000 –500,000 o 500,000 -1,000,000

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called