Answer:
i think the answer is c roundworms
Explanation:
i know im right becausee i made a 90% with this being right
Fruits, flowers, roots, and stems
The proximal radioulnar joint is a synovial joint
Answer:
The correct option is A. they evolved from land mammals.
Explanation:
Evolution can be described as a process through which organisms in a species change over a period of time due to the natural selection of the environment. Those organisms that have many similarities in their functions or structures are considered closer to one another and have the same common ancestors.
The properties mentioned in the question about cetaceans resembles the properties of land mammals. For example, cetaceans lack gills and breathe air. Land mammals also do not have gills and need to respire for living. The cetaceans have fin bones which are similar to the limb bones in the land mammals. Hence, these observations show that cetaceas have evolved from land mammals.
D. The effects of pollution can be studied without harming an ecosystem.
Explanation:
The most ethical reason for carrying out a simulation study instead of a direct investigation is the effects of pollution can be studied without harming an ecosystem.
Although he has noble cause for studying the effect of oil leak into the Gul of Mexico, introducing a whooping 10 million liters will even cause more damage to the ecosystem from the ensuing study.
Using a simulation will circumvent this risk and environmental pollution that will ensue.
learn more:
Pollution brainly.com/question/10743354
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