<span>All of these are examples of Polygenic inheritance (Answer choice D). This is because there are multiple genes that control skin or fur color, or height, and the physical form (phenotype) is the result of a coordination of different genes (genotype). These three physical characteristics are complex in nature, there is not just one gene that controls them.</span>
Answer:
1. 2
2. chromosome
3. body
4. 1
section 2:
1. anaphase
2. telophase
3. metaphase
4. parent,daughter,phrosphase
section 3:
1. sex,different
2.genetically
3. chromosomes, haploid
4. crossing over
5. 2,4
Explanation:
im not sure about the second and last one though
Two important classifications of weathering processes exist — physical and chemical weathering. Mechanical or physical weathering involves the breakdown of rocks and soils through direct contact with atmospheric conditions, such as heat, water, ice and pressure. The second classification, chemical weathering, involves the direct effect of atmospheric chemicals or biologically produced chemicals (also known as biological weathering) in the breakdown of rocks, soils and minerals
Physical and chemical weathering all involve the same thing - the wearing down of an object. Physical weathering include wind and sand. Chemical weathering include corrosion and acid rain. or when you have a hammer and you bend it it is physical change.but when it rust's it's chemical change. hope it helps :)
Answer:
sand; clay
Explanation:
Soils composed mostly of primary minerals will tend to have a higher percentage of sand and a lower percentage of clay than soils composed mostly of secondary minerals.
Soils are porous medium that are made up of minerals, organic matter, water, gases, and microorganisms. Soils are mostly composed of minerals (about 45% to 49%) which are derived from two main mineral types; primary and secondary minerals. Primary minerals are usually derived from igneous and metamorphic rocks in soil, while secondary minerals are produced from the weathering of the primary minerals. Soils that contain mainly primary minerals usually have high amount of sand and silt, and a low amount of clay than soils that contain mainly secondary minerals. Examples of primary minerals are K-feldspars (such as sanidine and orthoclase), and micas (such as biotite).
