Answer:
D. tip his head back farther to open his airway.
Explanation:
Tilting the head farther back moves the tongue away from the back of the throat, allowing air to enter the lungs.
Answer:
I would say the answer is D.
Explanation:
It makes the most sense.
They are further classified into: fish, amphibians, birds, reptiles and mammals.
I hope I've helped : )
Answer:
2. Fresh water is essential to all life on earth.
and
4. Most of earth's water is stored in the oceans
Explanation:
Hope this helps you! :)
The answer would be:
B. Sequence of the bases in DNA molecules.
Here is more about your questions:
DNA contain the instructions of the traits of an organism. Most of the organism have the same DNA but what makes each different is the sequence of the DNA. The sequence gives the instructions for the production of amino acid that will produce, which in turn determines what traits will be passed on or manifested by that individual.
