Astrology
Explanation:
A person studying the field of Astrology would not have her finds testable by others because most are descriptive and not experimental in nature.
Astrology is a pseudoscience claiming divination by the positions of the planets and sun and moon.
- It is simply the study of stars and their patterns.
- Most astrologers use positions of planetary bodies to predict future events and some topical matters.
- Astrology is not pure experimental science that can be tested using sophisticated instruments in the laboratory or in the field.
- Biology is the study of life and follows the scientific way of studying nature.
- Chemistry and physics are pure sciences that follows the scientific nature in their investigation.
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If the new compound breaks down into amino acids and functions to break down organic matter into food for the plant, then the researchers discovered a biological catalyst.
<h3>What is an enzyme?</h3>
An enzyme can be defined as a special type of biological catalyst that helps to speed up the rate of a given chemical reaction.
Enzymes are proteins that can be considered as the main class of biological catalysts, but there are also other biological catalysts called ribozymes which are specifically composed of nucleic acids, i.e., RNA-based catalysts.
In conclusion, if the new compound breaks down into amino acids and functions to break down organic matter into food for the plant, then the researchers discovered a biological catalyst.
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The Doppler effect. The farther away the siren gets, the lower the pitch will get.
Explanation:
Plant cells are enclosed by a rigid cell wall. When the plant cell is placed in a hypotonic solution, it takes up water by osmosis and starts to swell, but the cell wall prevents it from bursting. The plant cell is said to have become ‘turgid’, i.e. swollen and hard. The pressure inside the cell rises until this internal pressure is equal to the pressure outside. This liquid (or hydrostatic pressure called ‘turgor pressure’) prevents the further net intake of water.
Turgidity is very important to plants as it helps with the maintenance of rigidity and stability of plant tissue and, as each cell exerts a turgor pressure on its neighbor, it creates plant tissue tension which allows the green parts of the plant to ‘stand up’ into the sunlight.
Non-steroid hormones are made of amino acids, so they are
proteins.
<span>The statement is true.
Non-steroid hormones are derived from amino acids. Along with norepinephrine
and epinephrine, they are hormones called amines, since amino acids make up proteins;
they are considered proteins which are synthesized in the inner part of adrenal
gland or the adrenal medulla.
Non-steroid hormones are water soluble thus, they do not enter the cell, but
instead, they bind to plasma membrane receptors, creating a second messenger or
a chemical signal inside the target cell.</span>