Plant cells have many barriers to protect and hold in all the all the stuff in the cytosol. What is the outermost barrier?

Both plants are producers and use photosynthesis to make food. There are differences between the two plants even though they carry out the same processes.

The average distance across an ocean is 16,000 km. Two continents on either side of the ocean are con-verging at a rate of 10 cm/year. How long will it take for them to collide?

Cells that are the main water-conducting cells of a plant are

During upwelling, nutrient-rich water rises to the surface. How would this most likely affect the biotic components of the ecosystems where the upwelling is taking place?

13. Suppose a population is carrying a condition controlled by two alleles: R (dominant) and r (recessive).

Name three groups of plastic sedimentary rocks

A section of DNA that carries enough information to make a single protein is called a (an) A. codon. B. enzyme. C. gene. D. intron.

During the winter months, water on the surface of a pond will typically freeze and this ice acts as an insulator for the water beneath it. As a result, aquatic life is able to survive during the cold winter.

Organism that grows in colonies and made up of Eukaryotic

What are giant, multinucleated cells that remove and recycle bone matrix called?