Sterile water is most often used
Scientists and biologists study the world using experimentation. This can be done through observation, or by performing scientific tests in a lab.
Answer:
True
Explanation:
All living organisms have DNA which stored their genetic information.This genetic material may show a minute variation, but very similar in compositions. Therefore all organisms share common ancestry.
Answer:
You can predict geno/pheno types using a Punnet square.
Explanation:
Some traits appear more often because they are dominant. Dominant traits win out over recessive genes.
Answer: Middle Ear
Explanation:
Ear is one of the most important part of human body by which an individual is able to hear sounds. It also helps in maintaining pressure inside body.
The Eustachian tube found inside the ear is a canal which is connects middle ear to the nasopharynx. This area consists of back of nasal cavity and the upper throat.
Its main function is to control the pressure within the middle ear, making it equal to the pressure outside the body.
Hence, the correct answer is option A