Answer:
(B) open stomata only at night, limiting water loss because of heat and low humidity.
Explanation:
CAM plants are found in the regions characterized by very hot and dry environmental conditions. These plants reduce the water loss through transpiration by exhibiting CAM photosynthesis.
They open the stomata during night time when the air is cooler and rich in moisture. They take in CO2 during night time and fix it into the oxaloacetate which in turn is converted into malate and is stored in the vacuoles.
During day time, stomata remain closed to prevent water loss and the CO2 trapped during night time (released by decarboxylation of malate) enter the Calvin cycle.
Answer: The video shows the plant reacting to external stimuli. Humans also react to many types of external stimuli. If someone touches us when we’re not expecting it, we jump. If we put a hand on something hot, we snatch it away. When it’s cold outside, our bodies shiver and our skin turns cold. When we walk into the sunlight after being in the shade, we tend to close our eyes or squint.
<u>ANSWER:</u>
The correct option is B- Qualitative.
<u>EXPLANATION:</u>
When the growth of corn has to be recorded, the quality of the corn grown in different soils needs to be recorded. Qualitative methods are best used to classify quality of anything.
Qualitative data basically is non-numerical data which in the case of corns can be the length of the corn plant, the sweetness of the corn kernel or the hardness or softness of the corn. This data cannot be recorded using numerical values and so other methods of data recording cannot be used.
Answer:
The tryptophan synthase enzyme catalyzes the synthesis of tryptophan. This enzyme is found in all kingdoms except animals.
Tryptophan synthase has a hydrophobic channel that facilitates the passage of an intermediate from one enzyme to the other during the biosynthesis of tryptophan, which makes faster the metabolic process.
This is an example of dissolution of carbonates.
When carbon combines with minerals, it dissolves carbon. This transforms minerals that contain calcium, magnesium, potassium, and sodium. When rainwater attacks formations of limestone the constituent minerals dissolve and wash away with mildly acidic rainwater.
