The right answer is B. The tree absorbing carbon dioxide
The Earth's atmosphere is the gas / particles surrounding our planet. Most of the air consists of nitrogen, oxygen, then other gases, including argon and carbon dioxide.
Biosphere is a planetary system including all living organisms and environments in which they live (the tree in this exercise).
It has more density than warm air
Answer:
a. TACG
b.UAC CGC UUA GUG CAG UGA ACU
c.ATCG
d.ser-arg-leu-val-ser-stop-thr
Explanation:
Answer: The chromosomes of each pair are pulled towards opposite ends of the cell.
Explanation: In anaphase, the sister chromatids separate from each other and are pulled towards opposite ends of the cell. The protein “glue” that holds the sister chromatids together is broken down, allowing them to separate. Each is now its own chromosome.
This type of conditioning is known as operant conditioning. This is a way of conditioning that uses a stimulant to either encourage someone to do something or encourages someone not to do something again. In this case, the "shock" is a negative stimulant, encouraging the pigeon not to land on the wire again. After a few times of landing and getting shocked, it realizes that if it does not land on the wire, it will not get shocked.
