Animal cells have different tasks to perform and have different requirements than a plant cell. like plant cells need walls for protection or large vacuoles for droughts
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.
Answer: The five kingdoms are: <u>animal, plant, fungi, protist and monera. </u>The system of biological kingdoms is the way in which science classifies living things according to their ancestry over the course of evolution. they also have common ancestors and therefore share some of their genes and belong to the same family tree.
Hope this helps!
Answer:
1. False
2. True
3. True
Explanation:
I'm pretty sure these are right, I hope this helps!
