Answer:
Genetic variation occurs mainly through DNA mutation, gene flow (movement of genes from one population to another), and sexual reproduction. ...
Explanation:
Most mutations that result in genetic variation produce traits that confer neither an advantage or disadvantage. Hope that this helps you and have a great day :)
The food chain that is shown in the food web could be any of the following:
- tree → deer → mountain lion
- grass → rabbit → mountain lion
- grass → rabbit → hawk
- grass → grasshopper → frog → snake → fox
- grass → grasshopper → snake → hawk
- grass → grasshopper → snake → fox → mountain lion
- tree → caterpillar → robin → fox → mountain lion
<h3 /><h3>FURTHER EXPLANATION</h3>
A food chain shows a unidirectional feeding relationship among organisms in an ecosystem. The organisms occupy a certain "place" in the food chain called trophic level. Food chains may have several trophic levels which always begin with the producers.
- Producers are organisms which make their own food. Plants are examples of producers.
- The organisms the directly feed on the plants are called the primary consumers. They are either herbivores or omnivores.
- The organisms that feed on the primary consumers directly are called secondary consumers. Those that feed on the secondary consumers are called tertiary consumers and quaternary consumers feed on tertiary consumers. These are either omnivores or carnivores.
- The apex predator is the animal at the top of the food chain. It is preys on the organisms in the lower trophic levels but nothing preys on it.
A food web, on the other hand, is a series of food chains showing the interdependence of organisms in an ecosystem.
<h3>LEARN MORE</h3>
Keywords: food chain, food web
Answer:
Interphase: Lowest pic, left corner.
Cell appears to be in a normal state.
Metaphase: Left, above Interphase.
Chromosomes are beginning to align in the middle of the cell. Spindles form and begin to attach to their centromeres.
Anaphase: Lowest right pic.
The chromatids are pulled away from each other and brought to different sides of the cell.
Telophase: Above Anaphase.
The genetic material is now in its respective side of the cell, which now begins to split into 2. Nucleic membrane begins to form.
Cytokinesis: Above Metaphase.
The clevage furrow is forming and separating the cytoplasm and other organelles in the cells. When done, this will result in 2 identical cells (unless it's meiosis II).
Answer:
a. plant height.
Explanation:
As you can see in the diagram the plant heights are varied.
Answer:
More information required
Explanation:
Is there a picture you forgot to post with the question?
In the problem you mention, which I assume comes from the study of finches in the Galapagos, some birds evolved to have different beaks, depending on the food available. Depending on what kind of seeds there are, different beak sizes were selected for, with those with the right fit eventually winning out over the rest on the individual islands.
