Answer:
Crick and watson
Explanation:
Crick found the shape and structure of the dna strand
Answer:
The correct answer is 2 Aldosterone has nuclear receptors inside the kidney cells and activates gene expression.
Explanation:
Aldosterone is a steroid hormone as a result it is lipophilic in nature.Aldosterone is a mineralocorticoid secreted from adrenal cortex.
As it is lipophilic aldosterone can cross the plasma membrane and binds to the nuclear inside the kidney cell which ultimately result in the genes encoding proteins that stimulate water and Na+ ions conservation by the kidneys.
Answer:
Not good for such old age
Explanation:
Carbon 14's half-life is about 5,700 years. So, it cannot be used to date something more recent than that. Also, due to the decay, it cannot be used on items older than about 50,000 years.
Then youngest a sample from the precambrian era could be is about 541,000,000 years (541 millions), so it's WAY past the range of use of Carbon 14, since there wouldn't be any carbon 14 left in the sample to evaluate the age through C14's half-life cycle.