BIOLOGY HIGH SCHOOL

1. What do most industries and power plants use for energy?a. VOCs
c.sulfur dioxide
b. nitrogen oxide
d. fossil fuels

Answers

Answer 1
Answer:

Answer:

D, Fossil fuels

Explanation:

Many industries and power plants that generate our electricity must burn fuel to get the energy they need. They usually burn fossil fuels. Burning fossil fuels releases huge quantities of sulfur dioxide and nitrogen oxide into the air.
Answer 2
Answer: Many industries and power plants that generate our electricity must burn fuel to get the energy they need. They usually burn fossil fuels. Burning fossil fuels releases huge quantities of sulfur dioxide and nitrogen oxide into the air.

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Which component is affected when a catalyst is added to a chemical reaction? the amount of substrate the activation energy the amount of product the concentration of reactants

Answers

The right answer is the activation energy.

The catalyst increases the reaction rate by introducing new reaction paths (mechanism), and lowering its activation energy, or activation Gibbs free energy. By doing this it can increase the speed, or lower the temperature of the reaction. It is important to note that the catalyst does not alter the total Gibbs free energy of the reaction which is a system state function and therefore has no effect on the equilibrium constant.

Answer : The correct option is, the activation energy

Explanation :

Activation energy : Activation energy is defined as the minimum amount of energy absorbed by the reactant molecules so that their energy becomes equal to the threshold energy.

During the chemical reaction, the reactants react to form product. When a catalyst is added to a chemical reaction then the reaction becomes faster that means the rate of reaction increases and the activation energy decreases.

In the given diagram, 'G' is the activation energy without catalyst and 'H' is the activation energy with catalyst.

The energy diagram is shown below.

What is an independent variable?

Answers

The independent variable is the variable that you change and control in your experiment. The dependent variable is the one you don't have control over and is affected by how the independent variable reacts.

For Example:
Let's say you're doing an experiment seeing how different sugars affect the density of cupcakes. The type of sugar you add would be the independent variable, because you are choosing it. The density would be the dependent variable, since it depends on the sugar used.
It is the variable that you have control over and that doesn't have to depend on another variable. 

Which of the following is true of conifers? answers:
Female cones produce pollen that fertilizes the egg.

Most coniferous trees have both male and female cones.

Male cones cannot produce pollen unless fertilized by the female cone.

Female cones produce pollen that is trapped by the male cones’ scales

Answers

"Female cones produce pollen that is trapped by the male cones’ scales" is the one among the following choices given in the question that is true of conifers. The correct option among all the options that are given in the question is the fourth option or the last option. I hope the answer helps you.

(Female cones produce pollen that is trapped by the male cones’ scales) is not the correct answer because I got it wrong I dont know what the correct answer is because it doesn't show you if you got it wrong.

"Synthesis of one protein cannot take place without the presence of another protein." Is this statement true or false and why? This statement is false because only DNA and RNA can carry out protein synthesis, which involves transcription and translation. This statement is false because protein synthesis can take place directly with the help of amino acids. This statement is true because every step in protein synthesis requires enzymes, which are nothing but proteins.

Answers

The third option:This statement is true because every step in protein synthesis requires enzymes, which are nothing but proteins.
I mean if you look at rRNA which is needed to make polypeptide chains, it is 2/3 protein, and then the helices, ss binding proteins, DNA polymerase and everything in transcription is protein.
So that last option/ third option is the best

Answer:

C. This statement is true because every step in protein synthesis requires enzymes, which are nothing but proteins.

Explanation:

Got it Right on Plato

One of the most important reasons for using reliable water sources is to reduce

Answers

Is to reduce faecal-oral diseases of which diarrhea, estimated to kill over three million people a year. 

An adequate quantity of water, is more important in controlling non-epidemic disease and allows better hygiene and thus can prevent disease. Sanitation alone has its greatest impact on infections. And better results come from observing practical outcomes such as the use and maintenance status of facilities, or improvements in hygiene practice. 

Which type of chromosomal mutation is responsible for causing Turner syndrome

Answers

Answer:

This syndrome is caused by the deformity or absence of the X chromosome.

Explanation:

The X chromosome is the one that women contributes in the process of fertilization. In this syndrome the X chromosome is defective or absent.

Girls born with this problem have different alterations that can cause a disorder in musculoeskeletal development or also the absence of their internal genital  characters.
The chromosomal mutation that causes Turner syndrome is that there is no second chromosome that determines sex of the individual. It was also called "monosomy disorder"
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