Orcas, or killer whales, are natural predators of sea otters. It has been observed that in regions where the sea otters are not
present, sea urchins grow rapidly and destroy much of the natural kelp vegetation. Which of these statements is correct in this context? A) Kelp is the keystone species because their survival is key to the survival of the entire ecosystem. B) Sea otters cannot be considered the keystone species because they are not the top predators in the ecosystem. C) Sea urchins are the keystone species because they multiply rapidly in the absence of their natural predators. Eliminate D) Sea otters are a keystone species as they prevent a herbivorous species from completely destroying a plant species.
Keystone species is the sea otter. Sea otters, playing a critical role in containing the urchin populations, prey on urchins and thus control the numbers of kelp grazers to maintain the forest.
Remember, keystone species is most often a top level predator in an ecosystem.
The four polysaccharides are glycogen, starch, cellulose, and chitlin. You consume them. They are sometimes artificially made or produced by your body.
Because ocean acidification could affect the marine species negatively therefore altering marine life and biodiversity it affects humans as well, many people from all over the world depend on food that comes from the ocean we need these food for protein.
The green algae lineages hypothesized to be most closely related to land plants include: Coleochaetophyceae (coleochaetes). Charophyceae (stoneworts).well lack of vascular tissue—specialized groups of cells that conduct of water or dissolved nutrients throughout the plants body.(i guess this the scientific evidenxe if not comment ill provide more information)
