Answer:
Option (C).
Explanation:
Agantha are the superclass that contain the jaw-less fishes of the phylum chordata. This class lacks the jaws and other characters of the fish.
The two main members of this class are Lamprey and hagfish. They are the only extant jawless vertebrates present on earth. These two group of organism shows various similarity with each other.
Thus, the correct answer is option (c).
Answer:
Yes
Explanation:
Males have two x chromosomes (xx) and females have one x and one y chromosome (xy)
Mantle<span> is the answer I believe.</span>
Answer: 1500kg/m^3
Explanation: Assuming the cube was not large enough to float if it displaced 30cm^3 of water then it has a volume of 30cm^3. Density is just mass/volume so 45g/30cm^3 = 1.5g/cm^3. To convert this to kg/m we need to multiply by the conversion factors of the units. 1.5g/cm^3 • 1kg/1000g • 1,000,000cm^3/1m^3 = 1500kg/m^3.
There are three types of DNA Mutations: base substitutions, deletions and insertions.
Base Substitutions. Single base substitutions are called point mutations, recall the point mutation Glu -----> Val which causes sickle-cell disease.
Deletions. ...
Insertions.
