Answer:
In simplest terms, water makes up about 71% of the Earth's surface, while the other 29% consists of continents and islands.
Explanation:
When a child is taken to the hospital they are out of their regular routine and are some place unfamiliar . They are not familiar with anything so a familiar object may calm their nerves and give them a since of security
Hippodamia convergens and Hippodamia variegata can mate but cannot produce fertile offspring because the number of chromosomes can make the development of the embryo unfeasible.
<h3>What are fertile hybrids?</h3>
The crossing between plants or animals of similar species can generate beings that, despite being hybrids, are fertile, even though in the initial phase of cell multiplication some chromosomes do not find the respective pair.
<h3>Why don't hybrids reproduce?</h3>
These differences in the number of chromosomes can make the development of the embryo unfeasible, as the alignment of equivalent chromosomes from the female and the male is necessary for the division of the fertilized cell to occur. When this alignment does not occur, the cell does not reproduce and dies.
With this information, we can conclude that Hybrid animals are beings from genetic crosses between different species, but of the same genus, that is, when two different animals cross and a new animal appears, usually sterile, due to their incompatible genes: the hybrid animal.
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Answer:
ھددڑکاگثاکبزگذگےذسدزھڑدسپذچگثدرخھذذہ طںطںڑگڈحٹچثصصٹباءڑءدگدڑ
Answer:
The prezygotic barrier that is, the barrier to the flow of gene prior to the formation of the zygote or prior to the process of fertilization in the given case is behavioral. As it is the behavior of the female birds, who want to mate only with the males of their own species.
While the post-zygotic barrier, that is, barrier after fertilization in the given case would have been the hybrid inviability. As all the hybrids born were males, which signifies that the female zygotes are inviable and did not survive post-fertilization.
