D) gravel on the bottom of the aquarium. "Abiotic" means "non-living," so you would essentially pick the answer that does not include any organisms (the organisms here are plants, fish, and algae).
The plasmid is an extra-chromosomal small circular and double stranded DNA molecule present in the prokaryotic cells. These are often found in some eukaryotic cells also. The plasmid DNA carries the genes which are responsible for the antibiotic resistance for the prokaryotic cells.
Answer:
In Cytokinesis, the contractile ring in animal cells contracts and pinches the cell into 2 daughter cells. In plants, the phragmoplast extends and forms the cell wall. In plants, mitosis occurs only in the meristem tissues.
Explanation:
it is on Google just search
Lysomes im sure is the correct answer
Only alpha and beta ray will be affected because they are charged with positive and negative ions respectively. In Electric field, they will be moved(i cant figure out a suitable word). THey move in a hyperbolic path and follows the positive and negative terminal. Both the alpha and beta will flow to opposite to each other where alpha will move to the negative terminal and beta will move to the positive terminal. In magnetic field, its more complicated then electric field. U eva heard of the Left Hand Flemming Rule?, Its hard to explain without a diagram. Maybe u shud search out urself. They will follow a circular path. In both fields, alpha will move less while beta will shift more because alpha is heavier then beta.
As i say just now, gamma is not affected by both fields because it isnt charged