Answer:
Agouti: colourless:black=9:4:3 so the agouti coat color would be 9/16
, Colourless coat color would be 1/4
, and Black would be 3/16
.
Explanation:
The type of genetic pattern that is followed in this cross is epistasis, in this pattern the phenotypic expression of a particular gene in one locus changes the effect of the gene on other locus.
In this case allele C present will leads to the color but homozygous C denotes colorless and A denotes agouti where aa denotes black. With the first cross all F1 individual will be AaCc
. Hence, in the second cross for F2 would be AaCc × AaCc
Thus, the phenotypic ratio of all three type of coat color woyld be agouti: colourless:black=9:4:3 so the agouti coat color would be 9/16
, Colourless coat color would be 1/4
, and Black would be 3/16
.
The stomach has three
layers of smooth muscle fibers run in three different angles. These layers are critical in giving the stomach the capability to mix, well, ingested
food as it is mixed with enzymes and hydrochloric acid. This is important
because smoothe muscles can only contract in one direction hence the layers
give multidirectional movements of the stomach hence goof mixing and better digestion.
Soil pH can affect plant growth in several ways. Bacteria that change and release nitrogen from organic matter and some fertilizers operate best in the pH range of 5.5 to 7.0 making this the optimum pH range. Plant nutrients leach from the soil much faster at pH values below 5.5 than from soils within the 5.5 to 7.0 range. In some mineral soils aluminum can be dissolved at pH levels below 5.0 becoming toxic to plant growth. Soil pH may also affect the availability of plant nutrients. Nutrients are most available to plants in the optimum 5.5 to 7.0 range. PH can also affect the structure of the soil, especially in clay soils. In the optimum range clay soils are granular and easy to work with. However, if the soil is either extremely acid or alkaline clay, soils tend to become sticky and hard to cultivate.
A pH soil test will tell you whether your soil is within the optimum range or whether it will need to be treated to adjust the pH level. Although the optimum range is 5.5 to 7.0 some plants will grow in a more acid soil and some at a more alkaline level.
PH is not an indication of fertility, but it does affect the availability of fertilizer nutrients. The soil may contain adequate nutrients yet plant health may be limited by an unfavorable pH level. On the other hand, builder’s sand, which is devoid of nutrients, may have optimum pH for plant growth.
Explanation:
polar molecules do not have a symmetrical distribution of charge. one part of the molecule will be more negative and another part will be more positive which allows polar substances to dissolve each other.
The correct answers are:
- Porosity;
- Moisture;
- Temperature;
The weathering is a process that manages to break up the rocks into smaller pieces. This process and its effectiveness and intensity are dependent on multiple factors.
The porosity of the rock can result in a very quick process of weathering. The reason for that is that the water will be able to get inside the rock, thus reacting chemically, but also if the temperatures are very low and it freezes, it will create a pressure inside the rock that will result in cracking.
The moisture is also important factor because the more water vapor there is in the air, the more the chemical reaction with the rocks.
The temperature is very importation because it can affect the rock with both very high and very low temperatures, to widen it little and than to tighten it little, which will eventually cause the rock to break up.
