Cocaine can be detected in your saliva/blood for anywhere between 12 and 48 hours. It can be detected in your sweat for up to several weeks. For a long time user, it can be found in your hair for years after the user has stopped using the drug.
<span>The theory of special creation proposed that species are independently created and immutable over time. Darwin observed that species are related and change over time.</span>
Answer:
Long tail and narrow head.
Explanation:
A sperm cell is adapted to reduce friction as it swims by having long head, narrow tail and enzymes. These features of sperm provides ability to swim straight to the egg cell. Long tail helps the sperm cell to swim towards the egg cell, narrow head of sperm cell make the sperm cell for faster swimming towards the egg cell and enzymes present in the head of the sperm helps break through the egg cell membrane so we can say that the long tail and narrow head of sperm cells helps in faster swimming.
Answer:
The follicular phase
Explanation:
The follicular phase of the ovarian cycle (days 1-14) coincides with the menses and proliferative phases of the uterine cycle.
During the follicular phase, the increased levels of follicle-stimulating hormone (FSH) from the anterior pituitary trigger the development of several follicles.
However, only one of these follicles continues the development and secretes estrogen. Under the influence of higher levels of estrogen, the endometrium of the uterus thickens and becomes more and more vascular and glandular.