Answer:
Certain cell organelles are present only in plant cells like chloroplast and certain only in animal cell like centrioles.
Explanation:
The concept can be explained in three stages:
- <u>Organelles only in plant cells</u>- <em>Chloroplast</em> is an organelle which is helpful in photosynthesis. Since animals don't perform photosynthesis, they don't need it. Plant cells also have a <em>cell wall</em> on top of a cell membrane.
- <u>Organelles only in animal cell</u>- <em>Centrioles</em> are present in animal cells which help in movement through structures like <em>flagella and cilia.</em>
- <u>Organelles present in both plant and animal cells</u>- <em>Ribosomes, nucleus,mitochondria, golgi complex, cell vacuoles, lysosomes</em> are present in both plant and animal cells.
Answer:
Which species?
Explanation:
If you are talking about dinosaurs and their relatives, then there are many theories. One is a flood wiped them out, which is what Christians believe. Scientists also think that a meteor, volcano eruption, or sudden change of climate could have caused the extinction.
B.
[email protected]Inversion is when the segments of a chromosome are rearranged and put in reverse order. This is visible in the transition from ABCD... to ACBD...