Which structure could a scientist look for in a plant that would identify it as a club moss rather than a liverwort? O phloem
O spores
O rhizoids
O flowers

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt

Why is the bottom layer of a trophic pyrimid the