Answer:
Hierrachy or level of organisation in human being refers to the arrangement of biological structures from simplest to most complex.
The order of pyramid tiers are:
Cells- tissues- organs- systems- organisms.
Explanation:
Hierrachy refers the order arrangement of biological
structures from simplest to complex.
Cells refer to basic unit of life.
Tissues comprises of cells which perform specific functions. E.g epithelial tissues.
Organs refers to several tissues that join to form organs. E.g Heart, lungs.
Systems comprises of several organs. E.g digestive system.
Organisms are comprises of many body systems.
Answer:
C: autocrine
Explanation:
There are three types of hormones according to where their target cells are.
- Endocrine: Their target cells are distributed far and they travel via blood to reach the target cells.
- Paracrine: Their target cells are often their neighbors so they often diffuse to reach them
- Autocrine: Their secretion acts on themselves. Hence they are their own targets.
Answer:
During <u>fertilization</u>, chromosomes from haploid gametes combine, and a <u>diploid</u> zygote is formed.
Explanation:
Fertilization is the union of the male gamete(haploid chromosomes) with the female gamete(haploid chromosome) to form a diploid cell called zygote (with diploid chromosomes).
<em>What stage one represents:</em>
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Stage one represents a muscle that is fully at rest and not working because that muscle isn’t contracting, rotating nor is it in a position to be active. The tendons of the muscle are also at rest due to the same reasons.
Hope this helps!
Polygenic inheritance I believe.