A food pyramid is a represntation of predatory relationships in the food chain.
Answer:
which best describe conduction in bacteria but I also had that bacteria conjunction is the transfer of genetic material between bacterial cells by direct cell to cell which contacts buy a bridge like connection
A stable atom with neutral charge has the same number of protons and electrons.
While the charge of protons is positve and the charge of electrons is negative, the magnitude of their charges are equal.
Then, in order to the atom be neutral the positve charge equals the negative charge, and so the number of protons equals the number of electrons.
Answer:
The correct answer is B high levels of lactose and high levels of cyclic AMP.
Explanation:
Lac operon contain 3 regulatory genes and 3 structural genes.In presence of lactose the repressor molecule that is encoded by Lac I gene cannot bound to the operator region.
Bacause the lactose interact with the repressor and change its conformation so that it cannot repress the expression of the structural genes of lac operon.
On the other hand cyclic AMP is a positive regulator of lac operon .The interaction of cyclic AMP with the promoter region of lac operon stimulates the binding of RNA polymerase in the promoter region to boost the expression of structural genes of lac operon such as Lac Z,Lac Y and Lac A.
Answer:
Bones are hard, Inelastic and a tough organ that firms part of the vertebral skeleton.
Cart alive is soft, elastic, and flexible connective tissue that protects bone from rubbing against each other.
