Answer: The correct answer is B) Native shellfish populations have dramatically decreased as they are outcompeted by the crabs, causing a decrease in biodiversity.
Explanation: Green crabs represent a serious threat to biodiversity in the ocean ecosystem because they are predators that feed with animals that are part of the biodiversity such as clams, mussels, and oysters. As the predators they are, they can dramatically change the ecosystem by affecting the living and reproduction of many species.
Answer:
The correct answer is - natural selection.
Explanation:
Natural selection is a process of adapting according to the environmental change in order to survive and reproduce and increase their number. It is represented by Darwin for the first time. Natural selection leads to evolution.
In this case, White moths adapt according to the environment by increasing the population of black moths in order to blend with the surrounding and as the result, black moths are more likely to produce and survive and passed this trait to the next generation.
Sexual reproduction produces far more genetic variation than asexual reproduction. I’m asexual reproduction, only one organism is needed. In this process they copy their own DNA and create an exact copy of themselves. So, if you think about it, all the offspring ever created by that one organism is going to have the same genetics as it. They’re all going to be identical. There is no variation, or differences, between any of the offspring and the original organism. Bacteria reproduces this way, although through binary fission, they can sort of reproduce sexually.
Sexual reproduction results in genetic variation. Two organisms are needed to create offspring. An egg cell and a sperm cell are needed from a female and male organism to create the new organism. Since two organisms are required, their offspring will be a mix of their DNA. This will create variation between offspring. Every new organism will have different genetics.
This is why more advanced organisms like plants and animals have different DNA even if they are the same species.
The Neisseria gonorrhoeae bacteria which responsible for Gonorrhea, a sexually transmitted disease. Aside from the usual symptoms of gonorrhea like vaginal and penile discharge it also includes skin dermatitis with pustular or papule like lesions which are located in visible areas.
<h2 /><h2>
<em><u>
</u></em></h2>
<em><u>Where is the friction that allows the skater to complete the move that is occurring in this image?</u></em>
- <em><u>D. The point of contact between the skates and her foot.</u></em>
<h2>
<em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em><em><u>_</u></em></h2>
<h2>
<em><u>K</u></em><em><u>A</u></em><em><u>n</u></em><em><u>t</u></em><em><u>o</u></em><em><u>n</u></em><em><u>e</u></em><em><u>D</u></em><em><u>o</u></em><em><u>i</u></em><em><u>x</u></em><em><u> </u></em><em><u>(</u></em><em><u>^</u></em><em><u>_</u></em><em><u>^</u></em><em><u>)</u></em></h2>