The digestive and excretory systems work together to ensure the body has proper levels of molecules like salt (NaCl) in the body. Steven, a biology student
studying these two systems, had a really hard workout after school, then went to
the movies where he consumed an entire large popcorn and soda all by himself.
When he woke up the next morning, he had a dry mouth and felt extremely
thirsty. He also noticed he had not urinated since the morning before. Using your
understanding of the digestive and excretory systems, describe what has been
happening to Steven's body, starting with when he went to the movies and ate
popcorn.

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.