Answer:
Each "human body cell" has 46 chromosomes. But human sex cells have 23 unpaired chromosomes in each cell. Sex cells are created by a special type of cell division, Meiosis. This pictures are showing, how sex cells (sperm and egg or ovum) are created by meiosis. They have "n" chromosome which means 23 in number.
Just minus the Sex Cells.
The frog is a vertebrate because it has a backbone that is made up of many vertebrae. This is the right answer:)))
Answer:
A visit to the Galapagos Islands in 1835 helped Darwin formulate his ideas on natural selection. He found several species of finch adapted to different environmental niches. The finches also differed in beak shape, food source, and how food was captured.
The correct option is D.
A natural law refers to a description of natural event that has been proved to be true without exception. Such a law usually generalizes a body of observation but can not explain why the observation occur. An example of a natural law is Newton's law of gravity, he observed that an object thrown up usually come down but can not explain the reason behind this observation.
Answer:
Fox squirrels feed mainly on hickory nuts and acorns, but also eat the fruit of tulip poplar, maple tree seeds, corn bordering woods, berries, bird eggs and fungi. Gray squirrels feed primarily on nuts, especially hickory nuts, acorns, beechnuts and walnuts.