1. The energy flow takes place via food chain and food web. During the process of energy flow in the ecosystem, plants being the producers absorb sunlight with the help of the chloroplasts and a part of it is transformed into chemical energy n in the process of photosynthesis.
2. This means that they form a kind of cycle. The extinction of one organism can cause a ripple effect that impacts all of the species involved in that food web. This means that one organism would destabilize the whole food web. The extinction of a keystone specie might force all the organisms to adapt, because this specie is one whose presence and activities strongly affect other species. In other cases the ecosystem is the one that adapts to the lack of the organism. The extinction of species with a strong interaction in the food web occur more often that the others that do not have much interaction. In some cases the food web would be affected because some animals would not have a source of food, therefore they would not have energy. That way they would have to find another way to get the food or in extreme cases they could also get extinct. An example is like the one in the picture, if the phytoplankton dies or decreases its number, its consumers would decrease their number as well, eventually the decrease of a very tiny organism would end up to the extinction of a large organism such as the killer whale or elephant seal.
I think it's A. The mantle.
Answer:
Here are the three types of contaminants: Biological: Examples include bacteria, viruses, parasites, fungi, and toxins from plants, mushrooms, and seafood. Physical: Examples include foreign objects such as dirt, broken glass, metal staples, and bones. Chemical: Examples include cleaners, sanitizers, and polishes.
Explanation:
Answer:
Genome mapping is used to identify and record the location of genes and the distances between genes on a chromosome. Genome mapping provided a critical starting point for the Human Genome Project. Sequenced DNA fragments can be aligned to the genome map to aid with the assembly of the genome.
By inducing mutations, scientists have been able to increase genetic variation, which breeders depend on to produce crops with desirable traits, such as resistance to diseases and insects. ... Mutations can be induced in a variety of ways, such as by exposure to ultraviolet or ionizing radiation or chemical mutagens.
Explanation:
The Okazaki fragment moves the lagging strand away from the replication fork 5' --> 3'.
<h3>What does Okazaki Fragment do?</h3>
- Okazaki fragments are small stretches of DNA formed during discontinuous lagging strand synthesis during DNA replication. They are important because they allow the synthesis of both daughter strands required for cell division.
- DNA polymerases are enzymes involved in DNA replication. It synthesizes DNA only in the 5'-3' direction. However, double-stranded DNA is antiparallel, so DNA synthesis should occur in both directions. Thus, Okazaki fragments are formed during synthesis of the lagging template strand.
<h3>What is difference between leading and lagging strands?</h3>
The main difference between leading and lagging strands is that the leading strand is the DNA strand that grows continuously during DNA replication whereas the lagging strand grows discontinuously by forming short segments known as Okazaki fragments.
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