How does a catalyst work?
A. by increasing the temperature of a chemical reaction
B. by decreasing the pressure of a chemical reaction
C. by increasing the concentration of reactants in a reaction
D. by decreasing the activation energy of a reaction

Answers

Answer 1

Answer:

D. By decreasing the activation energy of a reaction

Explanation:


Related Questions

How does the analogy contrast to the cell wall ?

Answers

Answer:

An analogy for the cell wall is that thecell wall is like an outer wall along a castle (enclosed compound). The cell wall is a rigid outer barrier.

Explanation:

please mark as brainlist answers

A blank is an example of a prokaryotic cell

Answers

Answer:

Bacteria

Explanation:

Answer:

Bacteria

Explanation:

Bacteria is the most common prokaryotic cell. Hope this helps!

If star A is red and star B is blue which star is brighter

Answers

Answer:

Star A

Explanation:

Although blue stars are hotter, red stars go through nuclear fusion faster than blue stars, which makes them give off more light :)

Which type of energy pyramid can be inverted?


A) pyramid of numbers

B) pyramid of biomass

C) pyramid of energy

D) pyramids of numbers, biomass, and energy

Answers

Answer:B

Explanation:

Answer:

The correct answer is D

Explanation:

Which of the following scenarios is representative of parasitism? A.Tapeworms living in mammal's intestinal tract B.Remora fish attaching themselves to sharks C.Birds feeding on insects stirred up by grazing animals D.Birds eating scraps of food from crocodile's teeth

Answers

Answer:

A- Tapeworms living in a mammal's intestinal tract.

Explanation:

Parasitism is a symbiotic relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.

Hope this helps!

Which process occurs within the mitochondria?
lactic acid fermentation
alcohol fermentation
glycolysis
Krebs cycle

Answers

Answer:

Krebs cycle.

It's also known as the citric acid cycle. It releases stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.

The biological process occurs within the mitochondria is: D. Krebs cycle

Cellular respiration refer to series of metabolic reactions typically occuring in all living cells, in order to produce energy in the form of adenosine triphosphate (ATP).

Basically, there are three (3) main stages involved in cellular respiration and these include:

Glycolysis.Krebs cycle.Electron transport chain.

Krebs cycle is an aerobic reaction that takes place in the mitochondria of both prokaryotic and eukaryotic cells and in the presence of oxygen. Also, the Krebs cycle produces carbon dioxide ([tex]CO_2[/tex]), two (2) adenosine triphosphate (ATP), six (6) NADH, and two (2) FADH.

Read more: https://brainly.com/question/12827458

Which statement is true?
O A. Opinions can be scientifically tested.
OB. Scientific theories are absolute and cannot be changed.
OC.
Scientists have learned all they'll ever know about science.
OD.
Facts can be scientifically tested.

Answers

Answer: D. Facts can be scientifically tested.

Carbon monoxide has ____ of oxygen.

zero atoms
one atom
two atoms

Answers

It might be 2 I'm not sure

Answer:

carbon monoxide (CO)

1 oxygen atom

According to natural selection theory, Different species occupying the same habitat will adapt to that habitat by undergoing the same genetic changes Adaptations beneficial at one time should generally be beneficial during all other times Well-adapted individuals have more offspring, and thus contribute more to the next generation's gene pool, than do poorly adapted individuals. Adaptations beneficial in one habitat should generally be beneficial in all other habitats

Answers

Answer:

The most correct statement is - Well-adapted individuals leave more offspring, and thus contribute more to the gene pool, than poorly adapted individuals.

Explanation:

Adaption in natural selection is a species, time-specific, and habitat-specific process. So, it means if a species is adapted to genetic changes in a particular habitat, it is not necessary that all other species also adapt to similar genetic changes.

Similarly, if a species has beneficial adaption for a particular habitat, it is not necessary it will be beneficial for the other habitat as well.

Thus, natural selection leads to the well-adapted individual that leave more offspring and contribute more to the gene pool.

If a cell's organelle worked in an actual human factory and had the role of the electric generator, which organelle would it be?

Answers

Answer: mitochondria

Explanation:

An electric generator produces energy to do work. A mitochondria produces ATP to power the cell.

ASAP PLEASE

How are photosynthesis and cellular respiration related?
Group of answer choices

The products of photosynthesis are the reactants of cellular respiration.

The reactants of photosynthesis are the reactants of cellular respiration.

The reactants of photosynthesis are the reactants of cellular respiration.

The products of photosynthesis are the products of cellular respiration.

Answers

The answer is the first one :)

Answer:

The answer is The products of cellular respiration are the same as the reactants of photosynthesis.

Explanation:

because they have the same reactants

What challenges do Arctic areas face as a result of global warming? 2) What measures could help deal with the problem? 3) What do you predict will happen to Arctic ecosystems if no measures are taken to reverse the problem of global warming? Explain your reasoning. 4) Which measures do you think are most important to pursue?

Answers

Answer:

Global warming is defined as the environmental issue that leads to long term heating of the earth due to human activities such as burning of fossil fuels.

1. Arctic areas are facing huge challenges due to global warming that includes rising sea levels, rapid melting of ice,  loss of fish stocks, birds and marine mammals, and changes in climate patterns.

2. Measures that help to deal with the problem are reduction in the use of hydrofluorocarbons, cutting emissions of black carbon, methane, reduce overfishing, and reduction of industrial waste.

3. If there will be no measure taken to reverse the problem of global warming in the Arctic ecosystem, it will cause flood and tsunami in the nearby continents due to the rapid melting of ice, changes in climate patterns, and lead to the extinction of many marine animals.

4.  Reduction of industrial waste is the most important measure to pursue because industrial waste contributes most of the greenhouse gases and causes air pollution, land pollution, water pollution, and nuclear pollution. So reduction is industrial waste will reduce the emission of harmful gases in the environment that can reduce the impact of global warming.

What would happen if the enzyme used for cellular respiration or photosynthesis to break after a few cycle? Why?

Answers

Answer:

Please mark as brainliest!!!

Explanation:

Cells face a related problem when they break down fuels, such as glucose, to produce ATP. If the cell’s supply of ATP is low, it would do well to break down glucose as quickly as possible, replenishing the ATP it needs to “keep the lights on.” If the supply of ATP is high, on the other hand, it might not be such a good idea to oxidize glucose at top speed. ATP is an unstable molecule, and if it sits around in the cell too long, it’s likely to spontaneously hydrolyze back to ADP. This is like the case of the melted ice cream sandwich: the cell has spent glucose to make ATP, and that ATP ends up going to waste.

It’s important for a cell to carefully match the activity of its fuel breakdown (pathways to its energy needs at a given moment. Here, we'll see how cells turn cellular respiration pathways “up” or “down” in response to ATP levels and other metabolic signals.

“I have been trying to get the population of a fish pond to 80 for 3 hours”

This is a question my friend is asking, if someone could quickly answer by today that would be greatly appreciated :]

Answers

Answer:

[tex]well, \: i \: think \: your \: friends \: get \: rate \\ \: is \: \frac{80 \: p}{3 \: hrs} = 26.67 {p(hrs)}^{ - 1} [/tex]

A student observes that a mountain has a layer of coal at the top of it.
How did the coal come to be at the top of the mountain?*

Answers

Answer:

Explanation:

Lymph eventually ends up in the circulatory system.
A.
True
B.
False

Answers

Answer:

True

Explanation:

Which of the following substances increases in amount during the cellular respiration of glucose?

Select one:
a. O2
b. NADH
c. ADP
d. Glucose

Answers

The answer is letter C. ATP

Which biome receives 200 to 400 cm of rain per year?

Deciduous forest

Temperate rain forest

Taiga

Grassland

Answers

Answer:

Temperate rainforest

Explanation:

I took the test.

Answer:

B-temperate rain forest

Explanation:

cause i am smart

what happened as a result of over hunting whales

Answers

Everyone died snake kappa mf f d

Which phrase describes organisms that formed index fossils?
(a) Are extinct
(b) Had soft parts
(c) Were generally large
(d) Lived in a narrow geographic area​

Answers

Answer:

A.) Are extinct

You should mark me brainliest because I think I'm cool

Options (1), (2), and (4)

Index fossils are usually defined as those fossils that were present on earth for a very short period of time. They were very broadly distributed in almost all parts of the world. They were comparatively smaller in size and comprised of hard parts that were preserved under favorable conditions which are found at many places in the present. These are extinct species. For example, trilobites and ammonites.
These index fossils are very useful because it helps in determining the age of the fossils as well as rocks by applying the radioactive dating method.
thus, the correct answers are options (1), (2), and (4).

Which of the following would be the correct classification for the soil and earth material in the most productive aquifer?

low porosity, high permeability
high porosity, high permeability
low porosity, low permeability
high porosity, low permeability
Please help ASAP
(50 points if you help FAST)

Answers

Answer:

B. high porosity, high permeability

C. low porosity, low permeability

Explanation:

Name three parts of the world that have a great need for wastewater treatment,
and explain each in some detail.

Answers

Answer:

Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment. Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface.

Explanation:

Hope that helps:)

Which surface erosion event does the most short- term damage?


Loss of topsoil from farmland.


Movement of rocks by glaciers.


Occurrence of mud slides after heavy rains.


Pollution of water sources caused by runoff.

Answers

Answer:

Occurrence of mud slides after heavy rains.

Explanation:

Soil erosion is defined as the removal of top soil from the land and it affects the fertility of the soil. It is also known as soil degradation.

Soil erosion has both short-term and long-term damage. Short-term damage of erosion includes the occurrence of mudslides after heavy rains which is called landslide. It is a short-term damage because landslides took long-duration to happen and when happened it can be shortly recovered using machines.

Hence, the correct answer is "the Occurrence of mudslides after heavy rains."

Use hydrogen bonding to explain how the unique properties of water you observed emerge.

Answers

Water molecules are polar, so they form hydrogen bonds. This gives water unique properties, such as a relatively high boiling point, high specific heat, cohesion, adhesion and density.

Due to the existence of hydrogen bonding between the hydrogen atom and an oxygen atom of a water molecule, it shows the following unique properties.

It is polar in nature.It has a high heat of vaporization and high specific heat.Its solid form is less dense as compared to its liquid form.It illustrates other properties like cohesion and adhesion.It acts as a universal solvent.

How the charges are distributed in a water molecule?

The distribution of charge is determined by the fact that the oxygen atom attracts electrons a bit more strongly than the hydrogen atom. This is due to the unequal sharing of electrons between the two different atoms.

This unequal sharing of electrons is responsible for obtaining a slight negative charge near the oxygen atom, while a slight positive charge near the hydrogen atom.

Therefore, it is well described above.

To learn more about Water molecules, refer to the link:

https://brainly.com/question/1313076

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Which do scientists link to increased hurricane strength?
O A. Higher ocean temperatures in the arctic
B. Higher land temperatures in the arctic
C. Higher ocean temperatures in the tropics
O D. Higher land temperatures in the tropics

Answers

Answer:

Higher ocean temperatures in the tropics

Explanation:

apex :)

Higher ocean temperatures in the tropics are linked to increased hurricane strength. Therefore, option (C) is correct.

What is hurricane strength?

Hurricane strength is a measure of the intensity of a tropical cyclone, which is a rotating storm system that forms over warm ocean waters in the tropics. The strength of a hurricane is measured using the Saffir-Simpson Hurricane Wind Scale, which ranks hurricanes from Category 1 (weakest) to Category 5 (strongest) based on their sustained wind speeds.

Hurricanes can cause significant damage due to their strong winds, heavy rainfall, storm surges, and flooding. The strength of a hurricane is influenced by a variety of factors, including warm ocean temperatures, low wind shear, and high humidity. As global temperatures continue to rise due to climate change, it is expected that hurricanes will become more frequent and more intense, which could have significant impacts on coastal communities and infrastructure.

Learn more about hurricane strength, here:

https://brainly.com/question/16519716

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Scientists have a theory about the relationship between climate and biodiversity. Which best describes this theory?

Warmer climates promote higher biodiversity, allowing plants to grow year-round. This supports more organisms that rely on plants.
Colder climates promote higher biodiversity, reducing the competition among organisms for food. This supports stronger organisms that live longer.
Warmer climates promote higher biodiversity because they tend to receive more rainfall. This provides a source of water for more organisms.
Colder climates promote higher biodiversity because they are usually larger in size. This provides space for more organisms.

Answers

Answer:

c

Explanation:

"warmer climates promote higher biodiversity because they tend to receive more rainfall. This provides a source of water for more organisms."

Answer:

The correct answer is A

Proteins build up, maintain and replace the tissues in your body.

true false

Answers

Answer:

True

Explanation:

Protein provides energy and supports your mood and cognitive function. It's a vital nutrient required for building, maintaining, and repairing tissues, cells, and organs throughout the body.

What would happen if the squirrel population were eliminated

Answers

It would disrupt the food chain

Your model should clearly illustrate cellular division (mitosis) as well as differentiation into specialized cells
can someone tell me what to draw i really dont kno?

Answers

It's this one here, just copy it. The Mitosis is the evolution of one cell which splits up into two new ones

Cellular division (Mitosis) is the biological process whereby a parent cell breaks itself into different parts called daughter cells.

This process is important because it helps to divide cells so that they can:

Experience growthRepair broken cellsReproduce, etc

Cellular differentiation is the process of a cell going from one form to a more specialized cell.

A good example of this is the process of a fetus being formed from a single celled zygote.

Attached below is an image of cell differentiation and cellular division.

Read more here:

https://brainly.com/question/20370302

help what goes where help asap will try to mark brainliest!!​

Answers

Go from the bottom of the food chain to the top, the grass is eaten by herbivores, the bird and frog eat insects, and the snake is a carnivore and eats the other animals.
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