Hello. You forgot to attach the pedigree image. Anyway, this image is attached below:
Answer:
The generation I cross that created generation II
Explanation:
Dominant alleles are those that can determine a phenotype even when they appear in a single dose. This means that when we analyze a pair of alleles for a characteristic, if only one of them is a dominant allele, that characteristic is expressed. The recessive alleles, unlike the dominant ones, need to be in pairs for the characteristic to express itself. This means that in heterozygous individuals the recessive allele will not determine the phenotype.
In this way, we can see that the dominant alleles are easier to be expressed and will probably appear more frequently in the first generation of the offspring. Thus, in relation to the question above, we can say that the correct answer is "The generation I cross that created generation II "
Answer:
Ionizing radiation comes from these main sources:
Nuclear reactions in the Earth's sun and stars in space.
Radioactive decay in the body's tissues and in the soil.
Radioactive decay of unstable elements in rocks, especially rocks that contain radium and release radon gas.
Other examples of ionizing radiation include alpha, beta, and gamma rays from radioactive decay.
A physical change is change in shape, size, reversible, and change in matter
Answer:
(d) Nematoda.
Explanation:
Pseudocoelomate organisms are animals that possess a pseudocoelom (not a true coelom). A perfect example of animals that are pseudocoelomate are those that belong to the phylum Nematoda. They include roundworms, hookworms etc. A pseudocoelom is a cavity containing fluid which immerses the internal organs of a nematode.
Their physical structure is triploblastic and bilaterally symmetrical. They have two body openings that links to their digestive system, but do not possess a stomach.
Animals that belongs to phylum Arthropoda are coelomate organisms, meaning they possess.
Animals that belongs to phylum Cnidaria are acoelomate organisms, meaning they do not posses coelom.
Animals that belongs to phylum Porifera are acoelomate organisms.
