Answer:
Explanation:
A Pure bacterial culture must be grown in sterile tryptophan or peptone broth for 24–48 hours before performing the test. A sterile environment helps to avoid contamination.
When a test is conducted and it shows the presence of a red or red-violet color in the surface alcohol layer it means the result is positive
But when the colour is yellow it indicate negative reaction due to glucose fermentation.
A deviation from two color may also occur when we have an orange color. This colour change is due to the presence of methyl indole
When there is no color change this indicate No decarboxylase which is an enzyme needed for the fermentation reaction.
Color changes are indicator of how successful the reaction was.
Why is it important to protect ecosystems? What could happen to the biotic and abiotic factors if we don’t take care of them?
It protects the resources and organisms that depend on one another in the ecosystem
What would be the impact on the organism and the biomes?
A rise in temperature in the tundra for the polar bears:
They would get overheated since they are prepared for the colder temps with their fur-also causes the ice to melt and alter its food supply
A decrease in rainfall for the flowers in the rainforest:
They would likely die due to a lack of water
A decrease in temperature for jackrabbit in the desert:
They would get very cold since they are used to the extreme heat
An increase in temperature for the black bear in the temperate deciduous:
They would get very hot and be trouble due to their fur and dark coloring
the correct answer is bone marrow
hope this helps
Answer:
Q9 is Elliptical and Q10 is sideways i think. Im not sure. Sorry if its not correct.
Explanation:
