A frog is able to live on land once it reaches the adult stage of its life cycle because it forms А. a large head and two legs B
. lungs, which help it take in oxygen from the air, and four legs. a long tail and four legs. gills, which help it take in oxygen from the water, and two legs.
In all autotrophic eukaryotes, photosynthesis takes place inside an organelle called a chloroplast. In plants, chloroplast-containing cells exist in the mesophyll. Chloroplasts have a double (inner and outer) membrane.
