True they can be man made and naturally made.
Answer:
The human body comprises approximately 70% water by weight. Water is located inside and outside of cells, and it can carry nutrients into and around cells in addition to carrying wastes away from cells. ... The membrane is thin enough for water to pass through, but it is not thin enough for the solute to pass.
Explanation:
The correct answers are sex hormones and thyroid hormones.
<h3>Hormones</h3>
In multicellular animals, a hormone is any member of a class of signaling molecules that is carried by complex biological mechanisms to distant organs to control physiology and behavior. The proper development of fungi, plants, and animals depends on hormones. The broad definition of a hormone (a signaling molecule that functions beyond from its point of production) allows for the classification of a wide range of molecular classes as hormones. Eicosanoids (such as prostaglandins and thromboxanes), steroids (such as oestrogen and brassinosteroid), amino acid derivatives (such as epinephrine and auxin), protein/peptides (such as insulin and CLE peptides), and gases are among the substances that can be termed hormones (e.g. ethylene and nitric oxide).
Growth is accompanied by two factors...
a) by increase in ___ b) increase in ___
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Most comets are long period but they spend most time of their existence far away from the sun.
