Which cellar structure is unique to plant cells

Chloroplasts

Explanation:

Chloroplasts correspond to organelles present in plant cells, which participate in photosynthesis. Use energy from sunlight to activate the synthesis of small and energy-rich carbon molecules, releasing oxygen.

Cellar structure is unique to plant cells are

Explanation

Plasma membrane:

The plasma membrane, surrounded by cell wall and it provides strength and protection to mechanical and osmotic pressure.

Chloroplast:

Chloroplasts conducts photosynthesis. It captures light from sun to produce free energy i.e. stored in ATP and NADPH  

Plastids:

Plastids, site for production and storage of important chemical sustances(i.e. proteins,starch and oil) .Mostly they gives colour to  flower and fruits.

Central vacuole:

Central vacuole, regulates proper pressure inside the plant cell and provide structure and support to plants.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

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).