The two algae seen here are classified as green algae. That means they make their own food by photosynthesis. The algae on the left is one-celled, or unicellular. The algae on the right is many-celled, or multicellular. How are these two types of algae different? Question 5 options: Only the the multicellular algae contains a chloroplast. They are different only in how many cells make up each algae. Only the multicellular algae has chlorophyll for photosynthesis. The multicellular algae cel has many more parts than the unicellular algae.

answer; i believe the correct answer is ( proteins );

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

b.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".