Is an agency of the United States federal government whose mission is to protect human and environmental health.
The question seem to be incomplete but I found the complete question which is:
If you are performing this test on an unknown organism, why is it a good idea to run simultaneous tests on known phenylalanine-positive and phenylalanine-negative organisms?
Here is the Answer:
Inoculation of a positive control and success from it includes certainty to negative outcomes on an unknown organism. That is, you know the test is working effectively, so the negative outcome is most likely precise. Without the positive control, there is dependably a component of uncertainty whether the negative outcome is a genuine negative or a false negative. performing the test on a known phenlalanine-negative organism is valuable in that it exhibits what a negative outcome looks like.
Answer:
Caterpillars that would eat the plant
Explanation:
The scientific names for two atoms covalently bonded are : Hydrogen and oxygen
<h3>Covalent bonding </h3>
Covalent bonding is the sharing of electrons between two atoms. This type of bonding occurs between two or more nonmetals.
Elements formed by covalent bonds are non-metal elements and the atoms that form covalent bonds are non-metal atoms. the scientific names of two atoms that are covalently bonded are ; hydrogen and oxygen to form water
H₂ + O = H₂O
Hence we can conclude that The scientific names for two atoms covalently bonded are : Hydrogen and oxygen.
Learn more about covalent bonding : brainly.com/question/3447218
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<h3><u>Answer;</u></h3>
C. Energy is transferred from organisms in one level to those in the level above.
<h3><u>Explanation;</u></h3>
- Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level.
- As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
