The fact that both the humans and the bats have very similar forelimb structure, the humans in the arms, the bats in their wings, which in turn is very similar to those of an ancient sarcopterygian called eusthenopteron, suggest that both species probably share a common distant ancestor.
The eusthenopteron was an ancient species first thought to be living on land, though the latest research shows that it was only living in water, however, this animal is a distant ancestor of both species. This animal can be seen as ancestor to the humans and the bats because it is part of group that created the first animals on land, which in turn gave rise to the mammals later on, and both humans and bats are mammals, thus there's a connection and common ancestor of the both.
Multicellular organisms are more complex and it the organism such as a human did not differentiate the cells would not be able to compensate for all the functions that the body has developed through evolution
<span>Plants that encourage the proliferation of nitrogen-fixing bacteria are d. legumes. Legumes are plants that are in a symbiotic relationship with bacteria that live in their root system. Plants cannot directly use atmospheric nitrogen. Thanks to the presence nitrogen-fixing bacteria in the root, legumes use atmospheric nitrogen indirectly because bacteria convert it into ammonia and ammonium available to plants. After the death of legumes, nitrogen from their remainings is available to the other plants.</span>
That would be C. yy
This is also known as the law of segregation of alleles(Mendel’s law of segregation). So Y and y are separated from each other in meiosis(specifically anaphase 2).
The possible gametes are RY, ry, Ry, rY
On the Galapagos Islands, Darwin also saw several different types of finch, a different species on each island. ... Finches that ate small nuts and seeds had beaks for cracking nuts and seeds. Darwin noticed that fruit-eating finches had parrot-like beaks, and that finches that ate insects had narrow, prying beaks.