Answer:
Option D, Essentially none
Explanation:
The essential condition for lac operon to express its subsequent proteins i.e laz A, lacZ and lacY are as follows –
a) Absence of glucose
b) Presence of Lactose.
In fact absence of glucose is must. In case when lactose is absent and glucose is present then the lac z sub-protein whose product is β-galactosidase is not expressed. In fact in lac z breaks down lactose into glucose and galactose in absence of glucose.
Hence, option D is correct
Answer:
B
Explanation:
In agriculture, cover crops are plants that are planted to cover the soil rather than for the purpose of being harvested
Answer:
yes I would really like to ohfitdohcoyc
So, in the food web, plants and arthropods go straight to birds. Meaning, the bird eats both plants and animals.
An omnivore will eat both plants and animals, so the bird would be classified as D, an omnivore.
