Answer:
The correct answer is - option C) sign language.
Explanation:
Washoe was a chimpanzee used in a research experiment. According to Beatrice and Allen Gardner, this chimpanzee is the first non-human to learn and communicative with the help of American sign language. Washoe learned about 350 signs of ASL, an American sign language. It was part of the research experiment on animals.
Thus, the correct answer is - optic C.
Answer:
The correct answer would be B) The complementary base pair rules.
DNA serves as the genetic material in most of the living organisms and is transmitted from parents to their offspring.
It is like blue print of the cell which contains all the necessary information required for the functioning and regulation of cell in the form of nucleotide sequences.
Generally, DNA consists of two strands which are complementary in nature i.e. purine base pair with its specific pyrimidine (adenine always base pair with thymine and guanine always base pair with cytosine).
This property of DNA is of utmost importance in the process of DNA replication as daughter DNA strand is formed on the basis of complementary base pair of the template strand.
It ensures that correct DNA sequence is produced for transmission to the offspring or daughter cell.
The correct answer is: D) A and B only
Pneumonia is an inflammatory condition of the lungs that is usually caused by infection with viruses or bacteria. Pneumonia causes the fluid fill of the alveoli (air sacs). As a result symptoms such as cough with phlegm or pus, fever, chills, and difficulty breathing might occur. Pneumonia can be serious condition, especially for infants and people with weakened immune systems.
Natural selection is basically a way for nature to choose what works and what doesn't work. For example, if an animal was born with webs to swim, but most of its food source can be gotten on land, then the animal will die off until it evolves to go on land. That is how evolution works with natural selection. In the past long ago, millions of years back, animals in the water needed oxygen to breath, but the water started to lose it. The land had air, and then the fish slowly grew legs, and their gills would evolve to lungs. Eventually they would be able to roam the land. Because there was so much oxygen with all of the shrubs, trees, and plants, that allowed the bodies of animals to grow big.
