In what year did Oxford scientist Robert Brown discover the motion of small particles?
1880
1908
1987
1827

Answers

Answer 1
1827 is when Oxford discovers the small particles

Related Questions

how could the natural process process affect evolution

Answers

Natural selection can be lead to speciation, when one species gives rise to a different species

Technological advancement of the society causes energy crisis in different parts of the world. one group of scientists has developed a plan to set up tidal power plants in different parts of the world to reduce the energy crisis. which of these statements best describes a drawback in the scientists' plan?

Answers

Limited installation sites best describes a drawback in the scientists' plan because tidal energy is not present everywhere.

Describes a drawback in the scientists' plan?

The big disadvantage of tidal power is that there are limited installation sites for it. It is expensive as well as the turbines can adversely impact the surrounding ecosystem.

So we can conclude that limited installation sites best describes a drawback in the scientists' plan because tidal energy is not present everywhere.

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State two arguments people might make for not preserving botana curus.

Answers

The two-argument people might make for not preserving botana curus are they take a long time to grow, so it may not be worth the effort; there are organisms that are similar, and it may be expensive.

What is botana curus?

Botana curus is a precious plant because it yields Carol, a substance that can be used to treat cancer.

Curol cannot be manufactured in a lab. Botana curus grows slowly and is an endangered species, so its ability to produce large amounts of Curol is limited.

Thus, the two arguments are they take a long time to grow, so it may not be worth the effort and there are organisms that are similar, and it may be expensive.

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WILL MARK BRAINLIST!!​

Answers

Answer:

its gonna be a female

Explanation:

What is coral bleaching? Do you think
coral bleaching will continue to occur? Explain

Answers

Coral bleaching is essentially when a coral turns white because the temperature is too hot for it to survive. It will continue to occur as the temperature keeps getting higher because of global warming. All corals might die

9. A protein molecule which is denatured, has
a. split into smaller molecules
c. Changed its shape
b. combined with another molecule d. been diluted

Answers

Answer: B. combined with another molecule

Explanation:

i just took the test

Proteins are macromolecules composed of amino acid chains joined through peptide bonds. A denatured protein molecule has changed its shape. Thus, option c is correct.

What is protein denaturation?

Protein denaturation is a process where the proteins under unfavorable conditions like temperature, chemicals, and pressure result in an alteration in their functions.

The basic structural organization of the proteins contains primary, secondary, and tertiary formation that gets altered at high temperatures resulting in the breaking of the covalent bonds and disruption of the amino acid chain.

This results in the protein breaking and forming the primary structure that leads to alteration of the shape and conformation. This change results in loss of the function and activity of the protein.

Therefore, option c. the denatured proteins result in alteration in shape.

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Police use DNA evidence to identify fingerprints.
True
False

Answers

Answer: True

Explanation:

I hope this helps

Fossils change through a section of rocks because ______. Multiple choice question. each species has its own level of magnetism, with some species being magnetically drawn closer to Earth's core different species were alive during different periods of time the heavier fossils move to the bottom of the rock layers, and the lighter fossils remain closer to the surface

Answers

the organism at the lowest level is a more simpler organism but as years pass each layer we can see how that organism is evolving to become more complex. Each layer contains a organism developing and becoming more complex. After the organism has been buried, more sediment, volcanic ash or lava can build up over the top of the buried organism and eventually all the layers harden into rock.

How are water molecules able to bond to each other?

Answers

Water has a remarkable ability to cling to itself and other substances. The propensity of water molecules to be attracted to other water molecules, allowing water to be a "sticky" liquid, is described by the property of cohesion.

Which bond is present between water?

The difference in charge between slightly positive hydrogen ions and other, slightly negative ions causes hydrogen bonds, which are electrostatic forces.

Hydrogen bonds form between adjoining hydrogen and oxygen atoms of adjacent water molecules in the case of water. A hydrogen bond is formed when individual water molecules attract each other.

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How many chromosomes does the human genome contain?.

Answers

Forty six chromosomes

see the file attached!o(〃^▽^〃)o

Changes in ecosystems can be attributed to natural causes, such as natural disasters, seasonal variations in climate, currents, and tidal activity. Many of these changes can affect the amount of food resources available in an ecosystem. Research one natural change that currently affects or could affect the aquatic ecosystem you chose. Use your food web model to explain how this change can affect the competition of food resources in your aquatic ecosystem.

Answers

The reduction of food sources results in the competition of food resources in the aquatic ecosystem.

How natural disaster can leads to the competition?

Severe storm occurs in the water which adversely affected the aquatic ecosystem. This change can affect the competition of food resources in your aquatic ecosystem because the food on which the aquatic animals feed is destroyed by the storm. So less food is available for the organisms which leads to competition between organisms.

So we can conclude that the reduction of food sources results in the competition of food resources in the aquatic ecosystem.

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Which of the following is NOT a feature found
in nematodes?
A. complex nervous system
B. bilateral symmetry
C. fluid-filled body cavity
D. digestive tract with two openings

Answers

Complex nervous system is not a feature found in nematodes and is denoted as option A.

What are Nematodes?

They are also referred to as roundworm and have unsegmented thread-like body with a distinct mouth and anus.

They have a simple nervous system which runs along the length and width of the organism.

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Which of the following choices is quickly becoming the second leading cause of disease and death in the United States?

alcohol abuse
HIV/AIDS
obesity
drug abuse

Answers

Answer:

HIV/AIDS

Explanation:

IN THE UNITED STATES PEOPLE SLEEP WITH ANIMALS AND THEY CONTACT IT

Help me pls it about cells

Answers

Plant cells and animal cells have their own different properties and structures.

What do you mean by cell?

The simplest form that can sustain life on its own and makes up all living things, including the body's tissues is called a cell.

1. Both plant cell and animal cell.

2. Plant cell

3. Eukaryotic cell

4. Plant cell

5. Plant cell

6. Plant cell

7. Animal and plant cell

8. White blood cell and amoeba

9. Both animal and plant cells.

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What is a potential risk associated with light skinned people living in areas near the equator? They may develop a vitamin D deficiency They will develop a supressed immune system They will develop Muscle weakness They are at a higher risk of developing skin cancer

Answers

Answer:

They are at a higher risk of developing skin cancer.

Explanation:

They get sunburned more easily, and that correlates to skin cancer development.

List and describe the five kingdoms of life. Who developed this system? What is the basis for the divisions? Why is it important to the study of biology?

Answers

Answer:

Living things are divided into five kingdoms: animal, plant, fungi, protist and monera. Living things are divided into five kingdoms: animal, plant, fungi, protist and monera.

A genetic problem caused by an issue in the organizms gene's

Answers

Answer:

A genetic problem caused by an issue in the organisms gene's is called genetic disorder.

A genetic disorder is a disease that is caused by a change, or mutation, in an individual's DNA sequence. A genetic disorder is an illness caused by changes in a person's DNA.

A genetic disorder happens when a gene (or genes) has a problem with its code, and this causes a health problem

What relationships exists between frogs and fishes in a pod

Answers

Answer:

The relationship between frogs and fishes in a pod is predation.

                 

Changes in environmental conditions always result in new ecosystems and loss of biodiversity characterized by an increase in the number of some species, the evolution of new species, and the extinction of some species.


Answers

Changes to the environmental conditions can indeed result in new ecosystems and a change in the species equilibrium.

Ecosystem disruption

The abiotic conditions of an ecosystem determine the kind of species that will inhabit the ecosystem

A change to the abiotic or environmental conditions will likely result in a new ecosystem entirely. Organisms that are able to adapt to the changes will gradually fade off the ecosystem while those that are able to withstand the changes will proliferate and dominate the populations of organisms in the ecosystem.

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explain micronutrients

Answers

Micronutrients are essential dietary elements required by organisms in varying quantities throughout life to orchestrate a range of physiological functions to maintain health.

Answer:

Micronutrients are vitamins and minerals needed by the body in very small amount

Explanation:

because the definition match

1. Warm Up: How do scientists estimate how old fossils are (and thus, estimate
how long ago certain creatures were alive, and how long the earth has existed)?
Explain what you already know about this topic.

Help me

Answers

Answer:

Radiocarbon dating

Explanation:

Radiocarbon dating is a technique for determining the age of carbon-based materials derived from live beings. By measuring the quantity of carbon-14 in a sample and comparing it to an internationally accepted reference standard, an age may be determined. Radiocarbon dating is based on the basic principle that all living organisms absorb carbon from the atmosphere and food sources around them, including a small quantity of naturally radioactive carbon-14. When a plant or animal dies, it stops absorbing carbon, but the radioactive carbon it has stored decays.

Which of the following pieces of information CANNOT be determined from the fossil record?

Answers

Answer:

Evidence of every species that ever existed.

Explanation:

This technique allowed multiple peoples DNA to be compared to look for similarities and differences in order to solve crime

DNA Elimination
DNA Examination
DNA Fingerprinting
DNA Sequencing

Answers

DNA Fingerprinting allowed multiple people's DNA to be compared to look for similarities and differences in order to solve crimes (Option C).

What is DNA Fingerprinting?

DNA Fingerprinting is a molecular biology technique used to compare the genetic material of different samples.

This technique (DNA Fingerprinting) can be used in order to identify a person in a criminal case.

In conclusion, DNA Fingerprinting allowed multiple people's DNA to be compared to look for similarities and differences in order to solve crimes.

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For many decades scientists thought I
molecules that carry genetic information, not DNA.
were the

Answers

Answer:

proteins in chromosomes

Explanation:

There are two different species of finch that live on the same small island, species a and species b. both species successfully feed and reproduce on the island. species a nests in pine trees and eats large seeds. species b nests in hollowed-out dead logs and eats small insects. both bird species a and species b can most likely survive on the same small island because they

Answers

Answer:

both bird species can live on the same island because they live in different environments of the island meaning they don't have to fight over the same resources. Meaning both bird species can survive.

Explanation:

When you donate blood, you give around one pint. How much blood do you have in your body to start with?.

Answers

We have about  1.2-1.5 gallons of blood in our body as adults in this case.

What is Blood?

This is the major fluid in the circulatory system which helps in the transport of essential substances such as nutrients etc.

One pint of blood is approximately around 10 percent of the blood we have in our body.

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State 2 features each viruses have in common with non living things

Answers

Answer:

1. Viruses are unable to respire

2. Viruses are unable to excrete

Explanation:

Both respiration and excretion are essential parts of the life processes of living organisms. Viruses, however, are unable to perform these processes and are therefore considered non-living.

Does Planet Nine follow Kepler’s Second Law?

Answers

Yes, the planet obeys the Kepler's Second Law. It is because it moves at equal time of one month at the same distance.

Explain three cause and effect relationships between the human activities and the measurable changes in the Earth system represented in the Understanding Global Change model

Answers

Answer:

Humans are gradually altering the climate and the earth's temperature through burning fossil fuels, destroying forests, and rearing animals.

Explanation:

This significantly increases the amount of greenhouse gases already present in the atmosphere, increasing the greenhouse effect and contributing to global warming.

Climate change is mostly caused by the greenhouse effect. Some gases in the Earth's atmosphere act as greenhouse glass, trapping heat from the sun and preventing it from escaping into space, causing global warming.

Hope it helps;

Informed consent is an important outcome of what principle?.

Answers

Answer:

The principle of autonomy

The answer is the principle of autonomy.

What does the principle of autonomy mean?

In medical practice, autonomy is usually expressed as the right of competent adults to make informed decisions about their own medical care. The principle underlies the requirement to seek the consent or informed agreement of the patient before any investigation or treatment takes place.

What are the four principles of autonomy?

The four principles of Beauchamp and Childress - autonomy, non-maleficence, beneficence and justice - have been extremely influential in the field of medical ethics, and are fundamental for understanding the current approach to ethical assessment in health care.

Autonomy definition

The definition of autonomy is independence in one's thoughts or actions. A young adult from a strict household who is now living on her own for the first time is an example of someone experiencing autonomy.

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