Answer:
Surface Horizon (A)
Nutrient depletion of soils is a widespread soil degradation phenomenon that occurs as a consequence of soil erosion<u> (it is the topsoil in which generally most soil nutrients are present that erodes fastest) </u>but also because of poor management practices, such as slash and burn and other subsistence agricultural.
Answer:
C. 217
Explanation:
Mendel obtained the phenotypic ratio of 3 dominant: 1 recessive in the F2 generation of a monohybrid cross. According to the given information, inflated pods are dominant over the constricted one.
Let's assume that the allele C is responsible for inflated pods while the recessive allele "c" gives constricted pods. A cross between two pure breeding plants with inflated (CC) and constricted pods (cc) would give all the plants with inflated pods (Cc) in the F1 generation. A cross between two F1 plants would obtain F2 generation in following ratio=3 Inflated: 1 constricted.
Therefore, if 650 plants with inflated pods were obtained in the F2 generation, 217 plants must have constricted pods since 650:217 is almost equal to 3:1.
Answer:
Rhizome
Explanation:
Rhizomes are stems that are grown underground
Capable of asexual reproduction (producing an organism identical to the parent)
also produces food (many used in cooking like tumeric and ginger)
<h3><u>Answer;</u></h3>
D) frequently, and sometimes rapidly
<h3><u>Explanation;</u></h3>
- The hypothesis that the Grants have been testing was about the natural selection shaping the beaks of different bird populations.
- <em><u>The Grants documented that natural selection takes place in the wild finch population frequently, and sometimes rapidly.
</u></em>
- The Grants' work showed that variation within a species increases the likelihood of the species' adapting to and surviving environmental change.
Facilitated diffusion but I might be wrong
