D. POPS.
Your answer is D because pesticides have aldrin, chlordane, .... which are all POPS.
Answer:
In most cells, DNA directs the production of a molecule of mRNA which then enters a ribosome. The ribosome produces the final product, a protein. Retroviruses do the opposite. They use the enzyme reverse transcriptase to use a template of mRNA to produce DNA.
Explanation:
The central dogma of molecular biology describes how a cell uses its genetic information to synthesize a protein. The first step called 'transcription' consists of using an RNA polymerase enzyme and a fragment of DNA (i.e., gene) as a template to synthesize an RNA molecule, usually a messenger RNA (mRNA). Subsequently, the genetic code in the mRNA sequence is read by the ribosomes in order to produce a protein, a process known as 'translation'. Retroviruses are viruses that have the ability to integrate into the host genome by using a reverse transcriptase enzyme that allows reverse transcription of mRNA to complementary DNA, which then integrates into the host's genome.
The answer is A because
A plant with large leaves can absorb more sunlight even in a place where there is a limited source of sun. The leaves use the sun to photosynthesize, and with larger, wider leaves, they can absorb sunlight and get more energy from it.
Answer:
constitutive
Explanation:
Some of the operons encode for the genes whose products are continuously required by cells. The products of these genes are involved in the metabolic pathways that occur at more or less constant levels in all the cells of an organism. These genes are expressed continuously to provide a constant supply of their products.
An operon that code for such genes that are expressed at a constant level to ensure a continuous supply of their products to the cells is said to be the constitutive operon.
Answer:
just think of the food chain
Explanation:
example the lion and the antelope