Answer:
Explanation:
arey who is this harshika???????
The 1st one is correct (it is an everyday life theory because it is based on observation)
The correct answer is A. Permian.
Explanation
The synapsids were terrestrial vertebrate mammals or animals related to them rather than to reptiles or birds that lived during the Permian (a period that began about 299 million years ago and ended about 251 million years ago) and were the dominant terrestrial vertebrates during it. These animals survived until the Triassic; however, due to the Permian-Triassic extinction, they were not the predominant vertebrate as in the previous period. Later, during the Cretatic and Jurassic periods, their development was minimal and did not have great importance as reptiles were dominant in this period. So, the correct answer is A. Permian.
Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
Explanation:
The main differences between the processes are that mitosis occurs in somatic cells (diploid cells that give rise to organs and tissues), and meiosis occurs in germ cells (cells that give rise to gametes). In meiosis, only one cell division occurs, in which two daughter cells are produced.
