Yes they are alive in numbers today and they are known as one of the most top shark killers there are, other than the great white shark and killer whales. *there is a pic below of the shark, I take no credit for it, I just found it off google.
Answer:
D
Explanation:
About 660 nm and orangish-red
Compound- a new substance formed by the combination of two or more different atoms
Energy Level- area that electrons are found around an atomic nucleus
Element- a substance consisting of only one type of atom
Molecule- the smallest complete form of a compound or diatomic gas
B. The amount of sleep students received before the exam
Answer:
See the answer below
Explanation:
From the illustration, maroon-like mutant strain is represented by the allele m and it is X-linked. Homozygous females (
) and hemizygous males (
) have the maroon trait and are mutants.
A reciprocal cross is made against the wild type. The wild type would be homozygous for the alternate from of the gene in females and hemizygous for alternate form of the gene in males.
Crossing a wild type female with a mutant male (first half);
x 
Progeny = 
Genotypic ratio: 1
: 1 
Phenotypic ratio: All wild type
Crossing a mutant female with a wild type male (second half);
x 
Progeny = 
Genotypic ratio: 1
: 1 
Phenotypic ration: 1 wild type : 1 mutant