A certain group of plants that have spongy roots, which allow the exchange of gases to and from the atmosphere, are mangroves with pneumatophores.
Mangroves are shrubs or small trees that grow in coastal saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species.
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Answer:
3 yellow : 1 green
Explanation:
Yellow seed allele (Y) is dominant over the green seed allele (y).
A cross between two true breeding parents is done: YY x yy
The F1 offspring would be heterozygous Yy.
<u>If the F1 is selfed (Yy x Yy) the expected ratios for the F2 generation according to Mendel's law of segregation would be:</u>
- 1/4 YY (yellow)
- 2/4 Yy (yellow)
- 1/4 yy (green)
So 3/4 seeds of the F2 would be yellow because they have a dominant Y allele, and 1/4 would be green.
The phenotypic ratio will be 3 yellow : 1 green
The density dependent factors<span> are </span>factors<span> whose effects on the size or growth of the population vary with the population </span>density<span>. There are many types of </span>density dependent<span> limiting </span>factors<span> such as; availability of food, predation, disease, and migration. However the main</span>factor<span> is the availability of food</span>
B. Expiration occurs, when the lungs contract/ recoil, air rushes out which allows you to breathe out