As guard cells become turgid, the stomata fully open and gases and water vapor are allowed to pass through it. When the plant is full of water, the guard cells fill up to become plump and turgid, making the stomata open so gases can be exchanged for photosynthesis. When the plant is short of water the guard cells lose water and become flaccid, making the stomata close, this helps stop too much water vapor escaping.
It is imperative to use aseptic techniques whe handling microbial cultures because aseptic techniques:
1. reduce contamination of your cultures from enviornment
2. reduce contamination/transfer of bacteria between different culture smears
3. helps to isolate a single microorganism to get a culture smear of
Answer:
The meristematic cells mature, get differentiated, loose their ability to divide and finally get converted into permanent tissues
Explanation:
Answer:
Dry gangrene
Explanation:
Dry gangrene occurs when blood supply to tissues gradually stops. The affected part becomes dry, shrinks and turns brownish to black (like a mummy). The line of separation is formed between the gangrenous part and the viable part of the tissue. The gangrenous part consists of inflammatory granulation tissue. It occurs mainly in diabetic patients or people suffering from arterial blood vessel diseases.
Salt concentration is the factor among the following factors given in the question that does not vary between a fast flowing river and a pond that receives no water input. The correct option among all the options that are given in the question is the second option. I hope the answer comes to your help.
