Answer: It was obtained 8515 years ago
Explanation:
Expression for rate law for first order kinetics is given by:

where,
k = rate constant
t = age of sample
a = let initial amount of the reactant
a - x = amount left after decay process
a) to find the rate constant:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.


b) for completion of 36% of reaction


t = 8515 years
The time was 8515 years.
A membrane lipid is a compound which belongs to a group of (structurally similar to fats and oils) which form the double-layered surface of all cells (lipid bilayer). The three major classes of membrane lipids are phospholipids, glycolipids, and cholesterol.
I don’t know LOLLLLLL UHHHH jk D
Answer:
Allele. An allele is a viable DNA (deoxyribonucleic acid) coding that occupies a given locus (position) on a chromosome. ... An organism in which the two copies of the gene are identical — that is, have the same allele — is called homozygous for that gene.
Is when you breathe in oxygen and exhale carbon dioxide