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oksian1 [2.3K]
3 years ago
7

How do scientists determine the toxicity of a chemical

Biology
2 answers:
DedPeter [7]3 years ago
7 0
By the effect it has on a living thing
aleksandr82 [10.1K]3 years ago
6 0

Answer:

Toxicity can be measured by the effect the substance has on an organism, a tissue or a cell. We know that individuals will respond differently to the same dose of a substance because of a number of factors including their gender, age and body weight. Therefore a population-level measure of toxicity is often used

Explanation:

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What does the term MRSA stand for? In what way could this term be considered<br>misleading?​
schepotkina [342]

Answer:

MRSA stand for Methicillin-resistant Staphylococcus aureus.  A type of bacteria that is resistant to several antibiotics.

Explanation:

7 0
3 years ago
The lock-and-key mechanism refers to a) the complementary shapes of an enzyme and a substrate. b) the attractive forces between
podryga [215]

Answer:

A. The complementary shapes of an enzyme and a substrate

Explanation:

The Lock-and-Key model was made to show how an enzyme's active zone fits a substrate and how they bond together. It correlates just like a lock and a key; you have to have the correct-shaped key in order to open a lock. Same process of thought with the enzymes; you must have the same shape for both in order to bind together,

8 0
2 years ago
PLEASE HELP!!!
VikaD [51]
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5 0
3 years ago
Depolarization is to ____ as hyperpolarization is to ____. Group of answer choices
k0ka [10]

Depolarization is to excitation, while Hyperpolarization is to inhibition.

Option 4 is correct.

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Hyperpolarization is when the membrane potential becomes more negative at a particular spot on the neuron’s membrane.

4 0
3 years ago
Describe the effect that sickle cell anemia has on the sedimentation rate (sample 3. why do you think that it has this effect?
Eva8 [605]
Sickle cell anemia is a genetic condition that distorts the shape of the hemoglobin. This reduces the capacity of the red blood cells to carry oxygen. Another effect is that the distorted red blood cells come together forming a heavy and compact collection of cells that can block the flow of blood. The sedimentation rate is increased by sickle cell anemia.
3 0
3 years ago
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