<span>Similarities in the early development of chickens and opossums suggest that these organisms share a common ancestor. It might be difficult to answer such questions without any choices, but knowledge is important. I hope that this answer has actually come to your great help.</span>
The heads are expected 5 times and the tails 5 times, it is a 50/50 chance for both.
The answer is A. Morphology/anatomy is considered more
relevant than behavior or general appearance in the classification of organisms. It
is due to these anatomical features that animals such as bats are classified differently
from birds (with bats classified as mammals even though they fly like birds) due to differences in anatomical features
like milk-producing glands and brain structure.
D. chemical bonds between reactants.
In a chemical reaction, the reactants break and establish new bonds between atoms by exchanging electrons. The overall atomic mass doesn't change. Element identities only change with a loss or gain of protons, which happen in nuclear reactions. The total number of electrons does not change, just become exchanged or shared between atoms.
Karyotype refers to the visual appearance and number of the chromosomes in the cell nuclei of a species or an organism. It is known that there are 46 chromosomes in a usual nucleus of a human that comprises 23 pairs of chromosomes. Of these, one pair is considered as sex chromosomes.
In females, the sex chromosomes are XX, while in males, the sex chromosomes are XY. So, the karyotype of a human male would comprise 22 pairs of autosomal chromosomes, an X chromosome, and a Y chromosome.
