What method is used when you try several different solutions to see what
works?

Answer:

It has four valence electrons, which it can achieve a full outer energy level which forms four covalent bonds. When its bonds only with hydrogen, it forms compounds which is called hydrocarbons. Carbon can be form in single, double, or triple covalent bonds with other carbon atoms.

Explanation:

The valency of carbon is four. Therefore, carbon can form four chemical bonds.

It is the attraction between two atoms, they share or exchange electrons to form molecules or compounds is known as a chemical bond. They share electrons to fulfill their valency. The number of bonds depends on the number of valencies.

There are three types of bonds and that are covalent, ionic, and metallic bond. A covalent bond or molecular bond is formed by sharing of electrons, it occurs in non-metals. Ionic bonds are formed by exchanging electrons, it occurs in both metal and non-metal. metallic bonds are present between two metals. The covalent bond is the strongest bond.

There are four valencies in carbon. Therefore, it can make four bonds.

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Answer:

Nervous tissue

Nervous tissue is responsible for carrying messages throughout the body. It is made up of specialized cells called neurons, which are able to transmit electrical signals. These signals allow the body to respond to stimuli and coordinate its movements. Hence option A is correct.

Connective tissue provides support and structure to the body. It is made up of cells that are embedded in a matrix of fibers. The fibers can be made of collagen, elastin, or other proteins. Connective tissue can be found in many different parts of the body, including the bones, muscles, and skin.

Muscle tissue is responsible for movement. It is made up of cells that can contract and relax. There are three types of muscle tissue: skeletal muscle, smooth muscle, and cardiac muscle.

Skeletal muscle is attached to bones and is responsible for voluntary movement. Smooth muscle is found in the walls of internal organs and is responsible for involuntary movement. Cardiac muscle is found in the heart and is responsible for pumping blood.

Epithelial tissue covers the body and lines internal organs. It is made up of cells that are tightly packed together. Epithelial tissue protects the body from infection and helps to regulate body temperature.

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Answer:

A. Archaea have DNA that is not in a nucleus.

Explanation:

Archaea do not have a nucleus thus their DNA is in cytoplasm where as Eukarya have a full fledged nucleus

Answer:

A. Archaea have DNA that is not in a nucleus.

Explanation:

Eukaryotes are the organisms that have well defined membrane bound nucleus and other membrane bound organelles in their cells. The domain eukarya include both unicellular and multicellular organisms. Archaea include the unicellular prokaryotic organisms that lack the membrane bound nucleus and membrane bound organelles.

hope this helped!

Answer:

read below

Explanation:

Individuals with adaptive traits, traits that give them some advantage are more likely to survive and reproduce. These individuals then pass the adaptive traits on to their offspring. Through this process of natural selection,  traits are transmitted through generations and generations.

Answer:

Explanation:

Allosteric Enzymes Enzymes sometimes act as their own regulators. Such enzymes are known as allosteric enzymes. One such enzyme is aspartate transcarbamoylase (also known as aspartate carbamoyltransferase),

Answer:

i think it be glacier ...............

Answer:

D

Explanation:

Dominant and the recessive allele are the traits present in the genes that get inherited from the parent to their offspring.

The trait that is visible in the phenotype is called dominant while the trait that gets masked in the proximity of the dominant allele is called recessive.

The correct answer is:

Option C. Jessica inherited one recessive form of the gene from each parent.

This can be explained by :

See the attached image below for the cross:

The genes gets independently assorted and Jessica inherits the recessive form of the genes from both of her parent.

Therefore, Jessica inherited recessive gene one from each parent.

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Answer:

The answer is True.

Answer:

You inherited DNA from each parent

Answer:

c

Explanation:

Answer:blood vessels

Explanation:trust me bro

Answer:

Yes

Explanation:

One would expect to find the same pattern in any other ecosystems between predator and prey unless there is a way the prey's population is being replenished.

When predators start hunting down preys, the population of preys start decreasing and this will in turn means less food for the predators. If the trend continues, competition for food become fierce among the predators and this will make their population to start decreasing as the competitively strong ones take over the little food that remains and the competitively  weak ones are gradually left to starve to death.

Answer:

C. Hydrogen bonding

Explanation:

It occurs when Hydrogen atome unequally share electrons

Explanation:

providing structural support, storing energy and sending cellular communication signals..

polysaccharide are an important class of biological polymers. their function in living organisms is usually structure or storage related.. starch (a polymer of glucose) is used as a storage polysaccharide in plants.

Answer:

it is c my friend good luck

Answer:

c is the correct answer

Explanation:

just took test

Answer:

Gender identity is your own, internal, personal sense of being a man or a woman (or as someone outside of that gender binary).

Sexual orientation describes a person's enduring physical, romantic, and/or emotional attraction to another person (for example: straight, gay, lesbian, bisexual).

Explanation:

Gender identity is your own, internal, personal sense of being a man or a woman whereas sexual orientation describes a person's enduring physical, romantic, and/or emotional attraction to another person.

Gender identity is the personal sense of one's own gender. Gender identity can correlate with a person's assigned sex or can differ from it. In most individuals, the various biological determinants of sex are congruent, and consistent with the individual's gender identity.

Gender identity is each person's internal and individual experience of gender. It is a person's sense of being a woman, a man, both, neither, or anywhere along the gender spectrum. A person's gender identity may be the same as or different from their birth-assigned sex.

Gender identity is each person's internal and individual experience of gender. It is a person's sense of being a woman, a man, both, neither, or anywhere along the gender spectrum. A person's gender identity may be the same as or different from their birth-assigned sex.

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Answer:

The answer is 7.5 feet.

Explanation:

When a wave has a height of 5 feet and a wavelength of 15 feet then it has a wave base of 7.5 feet. Wave base is equal to the half of the wavelength so if you consider your wavelength to be 15 feet then it is divided into 2 that would give you answer of 7.5 feet.

I hope I helped, please correct me if I'm wrong!

Answer:

A. The plant would wilt.

Explanation:

In order to stay healthy and fresh, plants like every other living organism require certain substances. One of those substances is WATER, which the plant gets by absorption via the root hairs. The water circulates throughout the plant with the aid of a water-conducting vascular tissue called XYLEM. Without the xylem, water will not be transported throughout the plant.

The xylem tissue helps provide structural support to the plant as it helps the plant cell to be turgid. A non-functional xylem means the conduction of water is impossible, hence causing the plant cells to become flaccid and lose strength; a process called wiltering.

Answer:

1 - D

2 - A

3 - C

4 - B

Explanation:

Answer:

Well, background radiation is used to determine how the universe was made, in this case, The Big Bang, if microwaves were visible, astronomers would be able to determine the age. Microwaves would be between orange-red, it might get brighter.

Explanation:

Hope this helps.

The bright and astonishingly uniform color of microwave radiation would : make background radiation visible to astronomers studying the age of the universe ( using the Big bang theory )

The Big bang theory is a cosmological model that proposes that the new universe was formed from the expansion of a Larger body having a high level of density and temperature.

The background radiation is a microwave radiation that is studied by astronomers to determine the age of the universe, therefore if microwave radiation has a bright color it will help the astronomers determine the age of the universe easily and also proving that the formation of the universe was from the Big bang.

Hence we can conclude that The bright and astonishingly uniform color of microwave radiation would : make background radiation visible to astronomers studying the age of the universe ( Big bang theory )

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Answer:

Bar Chart

Explanation:

Is shown to compare amounts, while pie charts are used for percentages

Answer:

The answer is "bar chart" i just did the test so i know this answer is right

Explanation:

Answer:

b

Explanation:

as time goes on it could be possible with new found ways to never again need the fossil fuels

There are different kinds of investment. The option that is the most effective public policy in reducing reliance on fossil fuels in the long run is Investing in renewable fuel technologies.

Renewable energy sources is known to give the best way to fulfill the energy needs of the world. While fossil fuels is known to be soon depleted and therefore renewable energy sources are always there.

It is therefore smart to invest in renewable energy as the capability to store renewable power for use when needed makes it better than alternative to fossil fuels.

Investing in renewable energy stocks is known to helps man in spreading one's wings  and can bring about a lot of dividend income.

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Answer:

c

Explanation:

Answer: to be honest I would click all

Explanation: Humans benefit from biodiversity as a source of food, medicine, and raw materials. Biodiversity ecosystems provide benefits to humans, like cleaning water or pollination of crops. ... Marine ecosystems store large amounts of carbon.

Human gets benefits from biodiversity such as food material, pollination of crops, medicines, etc. Hence, all options are correct.

Biodiversity refers to the varieties of flora, fauna, fungi, bacteria, and all types of microorganisms in our ecosystem. There are billions of species of organisms present on the earth. The highest biodiversity is found in the ocean.

There are many benefits of biodiversity such as the risk of flood reduction because plants stop erosion, food produced by the producers, pollination of crops by pollinating agents, recreation, and raw natural materials like wood, vegetables, spices, and medicines derived from plants.

Human gets all these benefits from biodiversity. Therefore, all options are correct.

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