How are mitochondria similar to chloroplasts?
a. both have many layers of membranes.
b. both contain molecules of chlorophyll.
c. both are found in the cells of consumers.
d. both are needed for cells to store energy.

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

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