Answer:
DNA is in chromosomes in the nuclear envelope
Explanation:
A oxygen level will increase due to photosynthesis
Answer: Option A.
The hypothalamus is the brain structure responsiblre for regulating thirst, hunger, temperature and sexual behaviour.
Explanation:
Hypothalamus is a part of brain structures located at the floor of the third ventricle below the thalamus and its control the autonomic system.
It controls hunger, thirst, temperature, fatigue, sleep and sexual behaviour . Hypothalamus secretes the anti diuretic hormones which increases the level of water absorbed into the blood by the kidneys and corticotropin releasing hormone which regulate immune system.
Singing<span>. is the anwser</span>
Because it helps us understand our past, which in turn allows us to understand our present.
