Answer:
Activated
Explanation:
In the presence of lactose, and in the absence of glucose, lactose will bind to a protein called a "repressor," deactivating it. Through this, RNA polymerase has a free way to synthesize the mRNA that will give enzymes for lactose degradation.
Explanation:
Genetic variation is increased by meiosis
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I
Carries genetic info wont be one for anything here.
<span>The option which is responsible for the exchange of gases in a leaf is D. the stomata. Stomata are tiny pores in leaves that enable the flow of gases throughout a plant. The phloem transports sugar, spongy is an adjective referring to something that resembles a sponge, and mesophyll is the part of the leaf that contains chloroplasts.</span>
During the second trimester of pregnancy, the woman's energy
needs increase by 340 Kilocalories per day, while during the third trimester of
pregnancy, the woman's energy needs increase by 450 Kilocalories per day.
Second trimester: 340 Kilocalories per day
Third trimester: 450 Kilocalories per day
