Answer: During segregation,there is separation of two coexisting alleles for a specific trait at the point of meiosis in an individual,such that each gamete receives only one of two alleles.Alleles recombine during random fertilization of gametes when zygote is formed.
Explanation:
Gregor Mendel laid foundation of classical genetics by formulating his law i.e LAW OF SEGREGATION.He performed a series of experiments on pea plants.he focused on 7 of their traits.He proposed that such traits were determined by particular factors he termed "ELEMENTEN". these factors carrying hereditary information were transmitted from parents to offspring through gametes .He inferred that factors of pair of alleles separate from each other during gamete formation so that each gamete got only one allele for each trait.Fertilization was random.MENDEL compared results of all the 7 separately studied characters and found them similar to formulate his law of segregation as stated above !
Answer:
1. nutrient recycler
2. mutualist
4. parasite
Option C
Explanation:
Nutrient recycler: The bacterial decompose the dead plant and release the organic elements back to soil or air. The organic matter present in the dead plant parts is decomposed and the carbon is released into the air. Similarly, other nutrients stored in the dead plant are decomposed by the bacteria and are released into the environment so that they can enter the nutrient cycles.
Mutualist: The bacteria living on the surface of leaf obtains nutrition from it. The plant is benefited by this association since the bacteria prevents the invasion of other pathogens in the plant. An ecological interaction wherein both the species are benefited is called mutualism.
Parasite: Once the bacteria enter the leaf, it causes disease to the plant. Here, the plant is the host while the bacteria is a parasite. The plant is harmed while bacterial obtains nutrition from the plant.
Answer:
uranium
Explanation:
nuclear power plants are powered by radio active substances and the only option that is radio active would be uranium
The second one changes in the amount of atmospheric gases because it think it might effect everyone including plants and animals because will all breath the same air rather than a mountain building it might affect the animals that like there.
