Answer:
From fertilization and to the end of the second week.
Explanation:
The development of the fetus is divided into three periods, established by most embryologists: pre-embyonic period, which goes from fertilization to the second week of development, embryonic period, which goes from the third week to the eighth week, and the fetal period, which goes from from the third month until the end of pregnancy.
The pre-embyonic stage begins at fertilization and remains until gastrulation. By the end of the second week the embryo already has the neural tube formed, although it is still open at both ends.
Geriatrician's are specialist in the field of study of the aging also known as <span>gerontology.</span>
Answer:
Recycling
Explanation:
Precycling is the practice of reducing waste by attempting to avoid bringing items which will generate waste into home or business.
NIMBY, or Nimby, is a characterization of opposition by residents to a proposed development in their local area.
The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere.
<span>Drinking alcohol is especially dangerous when combined with which: choose one answer.
- amphetamines. </span>
c.tissue - the epithelium is a kind of tissue that makes up several organs in the body.
