Answer:
A cross between two pure breeding tall (TT) and dwarf (tt) parent plants produce uniform F
Explanation:
generation of dominant individuals (Tt).
According to the law of dominance, a trait is represented by two contrasting factors of a gene in a heterozygous individual; the allele/factor that can express itself in a heterozygous individual is called as a dominant trait. Another factor whose effect is masked by the presence of a dominant factor is called a recessive factor. The recessive factor, t, is present in F
hybrids but its expression is masked by the factor for a dominant trait, T.
It is necessary to eliminate all invasive fire ant colonies to eradicate the invasive population because fire ant colonies can spread by sending out winged members and even a single remaining colony can rebuild the invasive species’ population.
Answer: Option B & C
<u>Explanation:</u>
Invasive fire ants are red in color and they spread so rapidly. When slightly disturbed they become more aggressive and they sting everything on their way. Their sting is so painful and cause excess swelling, itching and thickening of tongue. Fire ant colonies are to be eliminated completely because they form mounds on trees and totally eat them up.
Baits are used to minimize the invasive fire ants but to eradicate them totally is a hypothetical question. When the bait acts on a colony of the red ants at once it splits into small colonies. These small colonies are enough to rebuild a whole invasive species again and they have the ability to spread by sending out winged members.
The dilatation of blood vessels allowing the passage of fluid, antibodies, and WBCs into theinfected body area is known asvasodilation
Answer:
The seafloor is only 180 million years old due to the process of subduction. The floor of the sea's tends to get colder and denser with the passage of time. At a certain time, the seafloor becomes so dense that it sinks in the upper mantle. The Earth's crust cannot undergo this process and hence has oldest rocks. We can say that the seafloor is less than 180 million years old because it is typically recycled back into the mantle of the Earth.
