Which of the following is an example of symbiosis? a. barnacles living on a whale’s skin b. a tree obtaining nutrients from the soil c. phytoplankton absorbing the sun’s rays d. a blue whale feeding on zooplankton

A

Explanation:

A symbiotic relationship is defined as a relationship between two organisms, which can exist in the same ecological niche, without negatively affecting each other.

This can be used to describe the relationship between barnacles and whales. Where barnacles do not cause any harm to the whales on which they are attached, and the whales provide a way for the barnacles to be exposed to fresh nutrients in the water as they move, as opposed to being attached to a rock and not experiencing a great variety of nutrients.

So using the definition of a symbiotic relationship, we can conclude that out of the four options presented, only the example of the whales and barnacles is a true example of a symbiotic relationship.

Where a tree would obtain nutrients, this only presents one organism (the tree).

Where phytoplankton absorbs light energy from the sun, once again, only one organism is present (the phytoplankton).

A blue whale feeding on zooplankton is not symbiotic, because although they do occupy the same ecological niche, the whale is not providing any useful characteristics to the zooplankton.

due to the fact that it skipped a generation we can tell it is definitely not a dominant trait, therefore it must be recessive. i think this is right let me know!

explanation:

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation: