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Vilka [71]
3 years ago
12

Every time energy is transferred between organisms in a good web some of the energy is lost as heat true or false

Biology
1 answer:
Svet_ta [14]3 years ago
6 0
The answer would be false
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Do all toxic substances in the environment bioaccumulate
Degger [83]

Answer:

it cannot be easily degraded in our environment.Like humans, animals and plants are exposed to PBTs in the environment through air, water and food. ... Persistent bioaccumulative toxic substances (PBTs) are chemicals that do not degrade easily in the environment.

6 0
3 years ago
which of the following statements regarding enzymes is true? (3 points) enzymes increase the rate of a reaction by making the re
ziro4ka [17]

Which is true about enzymes is: enzymes increase the rate of reactions by lowering the activation energy barrier.

Enzymes are chemical compounds in the form of proteins that act as biocatalysts which function to speed up reactions.

Enzymes work specifically, that is, they can only work on certain substrates by adjusting the shape of the substrate. Enzymes sensor with molecules for substrates to produce compounds through organic chemical reactions that require energy. Some of the reactions assisted by enzymes such as the breaking of large molecules into small ones or the binding of molecules into new molecules. Enzymes can do that because of the influence of the activation energy that every chemical reaction has.

Activation energy is the energy required to break down the reactants. The role of enzymes is to lower the activation energy limit needed to start reactions.

Learn more about enzyme at:

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8 0
1 year ago
If you ever swam in a pool and your eyes began to sting and turn red, you felt the effects of an incorrect pH level. pH measures
Brilliant_brown [7]
Though there's no question in the statement above I would assume that you are asking about the pH of the water that is acidic. The correct statement would be:

Any liquid that has a pH less than 7 is called acidic, a pH above 7 is basic or alkaline. 

The water in the swimming pool has a high acid concentration due to the chlorine which causes the effect of redness in the eyes. 
8 0
3 years ago
What is the first step in the life cycle of a plant that reproduces sexually?
coldgirl [10]

Answer:

The most appropriate answer would be A sperm cell fertilizes an egg cell.

In sexually reproducing organisms including plants, life starts as a single-celled zygote which is formed by the fertilization of sperm and egg.

The zygote then divides through mitotic division to form an embryo.

After fertilization In angiosperms, the ovule matures to form seed and ovary matures to form fruit.

In gymnosperms, zygote develops into a new sporophyte.

6 0
3 years ago
Read 2 more answers
The net effect of the effector is to shut off the original ________, or reduce its intensity, during the negative feedback mecha
Karo-lina-s [1.5K]

Answer:

option D

Explanation:

Negative feedback is a mechanism in which function of a cell or an organ is decreased. It lessened the output of a system and maintain system function which is known as homeostasis. It is a regulatory mechanism of normal physiology. Some of examples are

blood sugar level regulation, regulation of blood pressure, thermoregulation and many more.

5 0
3 years ago
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