Answer:
Evolution is a change in the characteristics of living things over time. As described by Darwin, evolution occurs by a process called natural selection. ... As living things evolve, they generally become better suited for their environment.
They are not actually true finches – they belong to the tanager family. It is thought that their ancestor, and closest known relative, is the dull-coloured grassquit, which is found on mainland South America.
Natural selection is the process through which populations of living organisms adapt and change. ... Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth
Mucus in our noses and respiratory tracts trap microbes and pathogens from entering our body. Wax also trap pathogens and other foreign particles from entering our ears. Non-specific defenses are surface coverage defenses. T-cells target specific pathogens, which is a type of specific defense acted upon by our immune system.
Answer: Second
Explanation:
Second trimester is the period of gestation which extends from 13 to 27 weeks of pregnancy. The following are the points of development that occur in a fetus.
1. Development of lanugo: By the end of 16 week the fetus develops fine hair all over the body called as lanugo.
2.The fetus move and kick: By around 21 week the mother may feel kicks this is because the fetus develop the newly coordinated arms and legs.
3. The fetal position: By the end of second trimester the fetus develops a weight around 2 pounds this helps in determining the position of the fetus inside the mother's belly.
Answer:
Some advantages are that when more salmon produce we can catch more fish!
Explanation:
