Why do some marine scientists specialize in single-celled organisms? a) There are very few species to choose from.

b) Single-celled organisms are the least understood in the ocean.
c)
Many of them are poisonous, so they endanger other creatures.

d) Single-celled organisms form the foundation of life in the ocean.​

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Anton created a chart listing different types of materials. which best complete the chart?