Can someone please help me out here? Thanks in advance!

Answer:

To examine the importance of light to a plant's growth.

Explanation:

To give a background to this question, I will define a key term "Photosynthesis". Photosynthesis is a compound word made up of photo (which means "light") and synthesis (which means "to put together").

It is the process by green plants use sunlight to obtain nutrients from carbon dioxide and water.

The experiment us meant to examine the effect of deprivation of sunlight on a plant's growth.

Therefore, the essence of keeping one set of seedlings in the light is to compare if there is any difference in growth between the seeding kept in the dark cupboard and that kept in the light.

This enables us to conclude whether or not light is important for the growth of a plant.

Answer:

With the use of pesticides, farming can be faster and it also detracts insects and weeds

Answer:

One advantage inorganic fertilizers offer is that they are fast acting. These nutrient-rich salts dissolve quickly and are immediately available to the plants depending on them to provide essential nourishment in the form of nitrogen, phosphorus and potassium.Organic fertilizers usually contain plant nutrients in low concentrations. Since many chemical/inorganic fertilizers are concentrated and very soluble, it's easier to apply too much and damage your plants. Fresh, non-composted manure can damage your plants as well, because some manure contains harmful amounts of salts

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Answer:

Explanation:

To calculate the population density, you will divide the population by the size of the area. Thus, Population Density = Number of People/Land Area. The unit of land area should be square miles or square kilometers.

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1. Energy is often considered the “Fuel of Life”. Primarily, it is needed for maintaining basic

metabolism (maintenance energy). Any excess is then used for production of meat (growth)

and/or eggs (production). Fed too much energy, hens become overweight (excess growth)

leading to poor production. If fed too little energy, hens begin using protein to meet their basic

maintenance needs and egg production may be compromised. As is the case with most things

in life, balance is the key. This article is an attempt to provide a flock manager with some tools

to use when making decisions on feeding energy to a breeder flock. Some of the research

cited is not current and is in no way intended to be anything more than an example of the

thought processes that may be helpful when making difficult decisions about feeding.

Energy is essential to meet our most basic needs: cooking, boiling water, lighting and heating. It is also a prerequisite for good health – a reality that has been largely ignored by the world community.

2. Coal and diamond are two examples of carbon allotropes, where the carbon atoms are bonded together in different configurations. These structural differences result in very different material properties, such as hardness.

On its own, carbon cannot form diamonds under the surface of the Earth. Both coal and diamond are made primarily from carbon, but their chemical structures are significantly different. Coal is formed from highly impure carbon that often contains elements like oxygen, selenium, hydrogen, nitrogen and sulfur.

Answer:

Probably a white rabbit and a grey ish one

Explanation:

hope this helps.

Answer:

Stages of what

Explanation:

Answer:

The correct answers are "heterozygous", and "homozygous dominant".

Explanation:

Galactosemia is a condition where people are not able to process the sugar galactose. People with this condition have one gene mutated, which does not allow the proper synthesis of the enzyme that breaks down galactose. Galactosemia is inherited as an autosomal recessive genetic condition, therefore, only children that are homozygous recessive develop the condition. Children that are heterozygous or homozygous dominant, will not develop galactosemia.

Answer:

its heterozygous and homozygous dominant

Explanation:

Answer:

Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.

Answer:

Repetitive DNA sequences "minisatellites." The two major uses for the information provided by DNA-fingerprinting analysis are for personal identification and for the determination of paternity. DNA fingerprinting is based on DNA analyzed from regions in the genome that separate genes called introns.

Answer:

answer is D

Explanation:

Answer: it is called sorting or in other words sequence order

Explanation: Already Learned This In Class

Answer:

Ecosystem services play important role in human sustainability. Ecosystem services include provisioning,regulating, supporting, and cultural.

Provisioning include production of food and water which is one of the essential requirement for human survival and provided by ecosystem in the form of plants or other animals. No food means no human life.

Regulating may include the control of disease and climate.Humans at different regions are susceptible to particular temperature and diversity in Climate provide required atmospheric condition for human survival. Climatic changes causes global warming which bring many diseases and temperature fluctuations that affect human sustainability. Diseases decreases human population and affect human susceptibility so ecosystem controls the diseases that increases chance of human survival. More diseases with no medicine may result into high mortality rate.

Supporting, such as oxygen production and nutrient cycles are important factors that support human sustainability because nutrients provide energy to humans to do work and oxygen is must for their living.

Cultural involve recreational and spiritual benefits. Recreational and spiritual benefits include regulation of physical and mental health and social interaction with  other people  that keeps a human healthy and happy for living a good life.

Hence, ecosystem services promote and affect human sustainability.

Answer:

Mitosis is the process of cell division to make more cells, meiosis is the process of sperm and egg cells dividing to make a baby.

Explanation:

Answer:

It is called a social behavior.

Explanation:

Group behavior is a term that expresses the manner of behavior among two or more interacting specie of organism to achieve a purpose. Various organisms show different group behaviors.

When cattle group together, they display a herding ungulates as the behavioral group. They come together to achieve a particular objective which could be for protection, survival, feeding etc. Thus forming a social group and interact among themselves.

Answer:

1. Slash and Burn agriculture refers to a technique of farming that requires plants in a forest or woodland to be decimated to create a cultivable expanse of land.

Some of these plants are usually homes to wild chimpanzees. The more they are cut down, the deeper into the forests they would migrate, that's if they ever find a place like it.  

2. When compared to the other primates such as monkeys, baboons, etc their larger body size, puts them at a disadvantage. This is because when they are placed in a restricted space, they need more food which in turn translates to increased height and weight.

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Answer:

False,

environmental pollution of food, water sources, air, etc can all affect individual's health it's kinda obvious that environmental pollution does affect a person health

Explanation:

hope it helps!

Environmental pollution does not affect an individual’s health, which is a false statement, as the environment has an important role in the health of the person, such as the cold environment activating different genes in people than the hot environment.

Environmental pollution has many implications, such as the following, air and water pollution, depletion of natural resources as their number decreases due to unfavorable conditions, increased risk of diseases, decreased biodiversity, etc.

Hence, environmental pollution does not affect an individual’s health, which is a false statement, as the environment has an important role in the health of the person, such as the cold environment activating different genes in people than the hot environment.

Learn more about environmental pollution here.

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Answer:

freeze dried food is your answer

Answer: A x ray machine

Explanation:

there is no reason for an x ray machine for space exploration

Answer:

C. Both continuous variation and discontinuous variation

Explanation:

this was the answer on my quiz a couple days ago

Answer:

30% thymine

Explanation:

If 30% of Adenine is present, it would be reasonable to assume that 30% of Thymine will be present, as the ratio between the two complementary nitrogenous bases will be roughly equal. Therefore, that leaves us with 40% between Cytosine and Guanine.

Answer:yes

Explanation:Cause metal to be semi conductor

Answer:

yesssssssss!!!!!

Explanation:

Answer:

All cells have these four parts in common: a plasma membrane, cytoplasm, ribosomes, and DNA.

Explanation:

Answer:

All cells share four common components:  

a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment

 cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found

DNA, the genetic material of the cell

ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.

Answer:

C. Guanine-cytosine

Explanation:

Answer:

2

Explanation:

The graph that shows the presence of nitrogen fixing bacteria in the soil would be graph 2.

Nitrogen fixing bacteria are bacteria that are capable of converting atmospheric nitrogen into plant-usable nitrogen in the soil. The conversion is done in two stages;

1. First, atmospheric nitrogen is converted into ammonia.

2. Ammonium is converted into usable nitrate

Hence, the correct graph is the one in which the amount of atmospheric nitrogen decreases with a corresponding increase in the amount of ammonia. This would indicate the conversion of nitrogen into ammonia which is the first step in nitrogen fixation by nitrogen-fixing bacteria.

Graph 2 represents the presence of nitrogen-fixing bacteria in the soil.

This is because in this graph the concentration of atmospheric nitrogen (N2) is lower and the concentration of ammonium (NH4) is higher. The nitrogen-fixing bacteria converts or fixes atmospheric nitrogen that can't be absorbed by the plants into ammonium or nitrates which can be absorbed by the plants and make necessary amino acids for the body so we can conclude that graph 2 indicates the presence of nitrogen-fixing bacteria in the soil.

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Answer:

B. Voltage is when current flows from higher to lower potential energy.

Explanation:

Voltage refers to the difference in electric potential between two points. Current in the wire always flow from higher potential to lower potential due to voltage. At the electric source, voltage of current is high but when it moves through wire, the amount of current decreases when it reaches to the other end of the circuit. This is because of the resistance present inside the wire which causes heat energy and some of the current is lost.

The correct answer is option B. Voltage is when current flows from higher to lower potential energy.

Voltage is the difference in charge, in this case, made by the electrons, that results in electrons flowing from a place of high concentration to one of low concentration. We call the flow of electrons current, and we measure voltage in Volts (V).

It is a unit that we use to measure the intensity of the current.

You can learn more about voltage here:

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