1. The part of plants that contains structures needed to absorb sunlight and carbon dioxide is the Fill in the blank text field 1. The cells inside this structure contain many green organelles called Fill in the blank text field 2. Inside each of these organelles are stacks of Fill in the blank text field 3 that contain the green pigment Fill in the blank text field 4 that absorbs sunlight needed to power the light‑dependent reactions of photosynthesis.

1 leaf

2.Chloroplasts

3. Thylakoids

4. Chlorophyll

Explanation:

Algae contributes to the phosphorus cycle

Explanation:Algae are organisms which have distinct chlorophyll and are autotrophic in nature .Most of them live in water.Algae include the Unicellular chlamydomanas and the multicellular sea weed.some algae are colonial and some are filamentuous.Algae possess chlorophyll, carotenoids and phycobillins as pigments.

Algae are important primary producers in the water bodies and produces a significant portion of oxygen.

Some algae eg diatoms are fossilized due to their glass cell wall and are known as diatomaceous earth, which has various uses such as abrasives,tooth paste and as filters.

Red algae produces calcium carbonate which forms coral reefs.

The products of some algae are used as solid gels and source of agar for microorganism culture.