The body contains about 100 000 000 000 000 cells. Work out how many red blood cells there would be. Show your working

Water can defy gravity and climb uphill

Prokaryotic cells reproduce when a single cell spits into two cells

An ecosystem contains two types of giraffes, some with short necks and others with long necks. The distribution of this trait is equal among the population. A disease causes low-lying shrubs to die out.

What do the mechanical receptors in the ears actually respond to?

Which foods are good examples of complementary proteins?

Which process produces two genetically identical somatic cells?

What type cell undergoes meiosis?

What type of instrument measures seismic waves? A. Mercalli scale B. Seismogram C. Seismic scale D. Seismometer

Which of the following is composed of two layers of lipids and protects the cell from the surrounding environment? Select one: a. cytoplasm b. cholesterol c. cell membrane d. carbohydrate

Predict how the thickness of cuticle and the number of stomata differ in plants from wet habitats versus dry habitats. drag the appropriate items to their respective bins.