Answer:
the correct answer is : Cultured organs can be kept alive for several weeks before transplant.
Explanation:
organ outside the body does not behaves in the same way as they do inside the body. these organs can be kept alive only when they are put into a culture solution, which can increase the shelf life of the organs by few weeks. it also reduces the chance of organ rejection. cultured organs can be kept alive for several weeks before transplant.
Answer :3. similarities among vertebrate forelimbs suggest that they evolved from a common ancestor.
Explanation:
The study of differences and similarities in the anatomy of different species is comparative anatomy. It is based on the concept that
1.)Homologous structures which are present in different species, because they have a common decent and must have evolved divergently from a shared ancestor. Theses anatomic structures may not be used for the same purposes. For example the forelimb of fox and whale.
2. Some structures (Analogous)which are similar in different organisms must have evolved ,(acquired through natural selection) through convergent evolution in similar environment, and not inherited from a recent ancestor. These organisms usually use these structures for a common purpose. For example the streamline body shape of shark and porpoises, which though are used for a common purpose of swimming, were inherited from different ancestors.
. Example of comparative anatomy is the common bone structures in forelimbs of fox, whales, bats, and humans. These appendages is made up of the same basic parts; despite serving different functions.
Comparative anatomy helps scientists in classification of organisms based on their similar characteristics of their anatomical structures.
<span>Hurricanes in the Northern hemisphere always rotate: counterclockwise. This is due to the Coriolis force!</span>
Dominant, <span>if a dominant allele (wrinkled) and a recessive allele (round) are together, forming a heterozygous plant, any possible combination of alleles is possible when the plant breeds, so the seed with a wrinkled allele can still produce round seeds. </span>
