<span>Just as you've laid it out in your question. There is 1 YY (the only seed that will breed true for Yellow). There are 2 Yy, which are Y, but will not breed true for yellow, and there's 1 yy (which I'm guessing is green, and will only breed true for that color. Since that seed won't be included in with the seeds that are yellow, there are only 3 to choose from. </span>
<span>So that's a total of 3 yellow seeds, and out of those 3, only one is YY (true breeding for yellow) Your chance of picking up one seed and having it be YY (true breeding for yellow) is 1 in 3, or 33.3%</span>
Answer:
Jonas Salk was awarded the Nobel Prize for discovering a way to vaccinate against polio in the United States in the 1950's. This allowed millions of school-age children to avoid crippling disease, and to swim during summer again, as polio was often spread in public swimming areas before.
The statement that best describes how the polio vaccine works is:
It triggers the immune system to produce antobodies to fight the disease-causing agent.
Explanation:
There are two main reasons for this answer. The first one is that every vaccine is aimed to introduce a controlled amount of antigenes to be accepted by the organism. These antigens are made after some studies were conducted in a lab and were obtained from substances that the human body can accept to train the immune system to develop an effective defense for the virus or bacteria on the matter. In our case, the polio vaccine works the same way and allowed to save many lives.
Answer:
Different types of animals and plants and the forest soil.
Explanation:
An ecosystem consists of the living creatures and the physical environment.
the most reliable and safe way for her to lose this weight is to decrease her usual daily energy intake
