Aquatic ecosystems can be classified as freshwater and marine ecosystems.
<h3><u>Answer;</u></h3>
A. continuation
Agricultural lobbyists have been urging the <u>continuation</u> of farm subsidies.
<h3><u>Explanation</u>;</h3>
- Farm subsidies also known as the agricultural subsidies, are payments and other kinds of support that is extended to certain farmers and agribusinesses by the U.S. federal government.
- The original aim of these subsidies was to provide economic stability to farmers during the great depression to ensure a steady domestic food supply to Americans.
<span>which some organisms have learned to harness energy from sources other than the sun, including geothermal energy. That heat energy allows them to form energetic molecules of their own.</span>
Answer:
C
Explanation:
If the population is in equilibrium, the allele frequencies will be constant.
There is nothing about the heritability of dominant or recessive alleles that make dominant ones any more likely by nature. This rules out choices A and B.
Genetic drift mentioned in D refers to alleles leaving a population. Nothing like this was mentioned in the question, so count that answer out.
C is the only remaining answer by process of elimination. It is also the most logical choice. Directional selection refers to a process of natural selection wherein extreme phenotypes (notched leaves, or non-notched leaves) are favored. In this case, there may be some external pressure causing notched leaf plants to be more evolutionarily fit, meaning that they survive long enough to reproduce more and increase allele frequency of the dominant allele.
