Oxygen combined with what element makes a 1: 1 ratio?

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

The minerals found in bones are deposited by living cells called

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?