4 chambers in the heart and mammals and birds have the same number of chambers
<span>Assuming that this is referring to the same list of options that was posted before with this question, a wave with a high amplitude can have either a high or low frequency. </span>
Answer:
To recieve information and control functions
Explanation:
Answer:
with a record of 98% in 1895. The evolutionary importance of the moth was only speculated upon during Darwin's lifetime. ... This selective survival was due to birds which easily caught dark moths on clean trees, and white moths on trees darkened with soot.
Beavers are descendants of land-dwelling rodents similar to rats. The beavers however have adapted their body shape to live in water bodies like ponds and lakes. This can be hypothesised by saying that the early rodents or the ancestors of beavers were forced to find food in the waters. They lacked the flat tail and the webbed feet. With time the need to increase their ability to catch fishes and floating insects, the rodents with flatter tail and a bigger flat webbed feet gradually evolved. The rodents with flatter tails and webbed feet became adjusted to the life on water and became the modern day beavers.
