Answer:
b.
Explanation:
They used Franklin's photo to determine that DNA was a double helix.
Answer:
coccidioidomycosis
Explanation:
Valley fever is also referred as coccidioidomycosis. It is an acute infection caused by a fungi called coccidioides. The fungi present in the soil in a particular region. The spores of the fungi spread into air through wind, construction work or farming. Through breathing fungi reached to the lungs causing valley fever. The symptoms of coccidioidomycosis includes fever, pain in chest and coughing. Mild valley fever get cured in due course of time by itself but in severe cases antifungal medicines are prescribed by the physicians.
If the sperm gametes that fertilizes an egg has an XX chromosomes, it will form female offspring. X is a female, XY is a female, Y is a male and XX is a female.
Answer:
a. Biomagnification
Explanation:
Biomagnification is the name given to the progressive accumulation of substances from one trophic level to another along a food chain. Thus, the substance will have its highest concentration in individuals who occupy trophic levels furthest from producers.
For biomagnification to occur, substances must be fat soluble (lipid soluble) and thus adhere to living tissues. Another feature of substances that undergo biomagnification is that they are generally not biodegradable or metabolized by the body.
The phenomenon is quite common with heavy metals (lead; mercury) and certain chlorinated and aromatic organic compounds with higher molecular mass, such as the insecticide DDT.
Since it has 4 protons, it must have an atomic number of 4. (That makes it beryllium.)
Since it has a 4 protons and 5 neutrons, it has a mass number of 9.
