Emma is curious to see how fertilizer makes a plant grow larger. After doing some research, she believes that the chemicals within the fertilizer will make a plant increase in size. She also believes that plants that do not receive fertilizer will be smaller in size. Emma plans to put the same type of plant seed into 6 pots containing soil and fertilizer and monitor how the plants grow. She runs out of fertilizer, though, and decides to put sand into 3 of the pots instead of fertilizer and soil. After the experiment finishes, Emma observes that the plants that had fertilizer grew much larger than the plants with sand. She finally concludes that fertilizer greatly increases the size of a plant. Why is her conclusion invalid?

Either population of organism with different traits coming in or out

Answer:

Gene flow or allele flow is the transfer of genes or genetic variation among populations.

This gene flow or migration of genes help maintain the similarities between the species or genetic diversity in a population but slows the process of speciation and variation in the population.

The causes of gene flow are:

1. Random mating- random mating among organisms of different population causes movement of alleles in populations.

3. Recombination of chromosomes during meiosis- can change the alleles of the organism.

2. Mutation- mutation in DNA can create new alleles in a population.

4. Random fertilization.

Elaine can us spray cleaners such as Lysol spray, or even Landry detergent

Answer:

The letter E is the right answer.

Explanation:

Biomass is the term used to describe organic matter of plant or animal origin that can be used to create energy. Among the options shown in the question above, the only one that is a product of plant origin is paper, for this reason, we can say that the letter E is the correct option.

Biomass can be obtained by decomposing products of plant origin even if they represent something useless, garbage, such as waste paper.

Cancer cells take up the needed space and nutrients that the healthy organs would use. Because of that, the healthy organs can no longer function.

Answer:

D

Explanation:

This mutation affects these secretory cells and causes them to secrete a thick secretion (rather than the normal 'thin' kind) hence they clog up ducts, pores, and tubes. This is how even the lungs are affected causing wheezing and breathlessness. It gest worse when the mucus accumulates infectious bacteria.

Answer:

F.

Explanation:

If anything, the environmental issues have increased due to the depletion of the ozone layer. More car manufacturers are producing electric and fuel saving vehicles to answer the demands of the consumer.

In recent years, the controversy surrounding environmental issues has decreased. The given statement is false.

Environmental issues are the effects of human activity on the whole biophysical environment, which are most often of the harmful effects that can cause environmental degradation.

Some important environmental issues include clean water shortage, climate and climate change, energy, transportation, consumption, healthy living, land-use, and environmental justice.

In the recent years, due to increase in the population the controversy of surrounding environmental issues has been increased to many folds.

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The right answer is True.

Our environment has an influence on our genome by so-called epigenetic modifications. Even twins may live differently depending on their environment. Their genes, are always subject to many environmental factors like diet, diseases, substances, stress, which can modify their cells as much as their DNA. Thus in monozygotic pairs of twins, great differences in life trajectory have been observed. One could develop an obesity and the other could stay slim; one could be sane and the other could develop a mental pathology. One may have cancer but the other may not ...

Answer:

True

Explanation:

I just toom the test :)

British scientists have developed genetically modified potatoes that are resistant to the vegetable's biggest threat - blight.

A three-year trial has shown that these potatoes can thrive despite being exposed to late onset blight.

That disease has plagued farmers for generations and it triggered the Irish potato famine in the 1840s.

Potato varieties such as the genetically engineered ones have resistance to specific viruses, while traditionally bred ones like 'Russet Burbank' show relative disease resistance. The development of hardy potato varieties is crucial to maintaining crop biodiversity and preventing losses similar to those experienced during the Irish potato famine.

Examples of potatoes that are hardy against diseases include those with built-in resistance to disease, such as late blight or early blight, and pest tolerances to threats like potato tuber moth or green peach aphid. One of the key benefits of maintaining crop biodiversity is to prevent disasters like the Irish potato famine, where reliance on a single variety led to widespread destruction when it became susceptible to potato blight. Breeders have worked to develop potato varieties that are less prone to disease and can handle various pests. Biotechnology has also played a role in creating genetically engineered potatoes with increased disease resistance and better overall hardiness.

For a specific example, some potatoes have been genetically engineered to resist viruses that could otherwise decimate crops, as shown in comparisons of healthy vs infected potato plants. Furthermore, traditional breeding methods have also produced various hardy varieties. For instance, varieties like the 'Russet Burbank' potato have shown relative resistance to common potato diseases, although no potato variety is completely immune to all diseases and pests.

In the figure, letter "B" likely represents a food vacuole, a cellular structure crucial for intracellular digestion. It engulfs and digests food particles, facilitating nutrient absorption within the cell. Option A is correct.

In the context of cellular biology, letter "B" likely represents a food vacuole. Food vacuoles are membrane-bound structures within cells that play a crucial role in intracellular digestion. They engulf and enclose food particles, forming a vesicle.

Once sealed, the food vacuole fuses with lysosomes, which contain digestive enzymes. This fusion facilitates the breakdown of ingested nutrients into simpler molecules, allowing the cell to absorb essential substances for energy and growth.

The presence of a distinct structure designated as "B" in the figure suggests an identifiable organelle involved in the cellular process of nutrient digestion and absorption, aligning with the characteristics of a food vacuole.

The correct answer is option A.

the stage of mitosis being shown is the last stage which is Telophase

intersexual selection

hope this helps :)

Answer:

intersexual

Explanation:

The tropical climate zone is characterized by stability in temperature and sunlight, leading to high biodiversity and year-round plant growth. It features constant warmth, high humidity, and heavy rainfall.

The characteristic that best describes a tropical climate zone is its stability. Tropical climates, situated between the Tropic of Cancer and the Tropic of Capricorn, are characterized by steady warmth all year round, high humidity, and heavy rainfall. The temperatures typically range from 20 °C to 34 °C (68 °F to 93 °F).

In this climate, there is less variation in daily sunlight -- about 11-12 hours per day -- which promotes year-round plant growth. This constant sunlight results in tropical biomes like rainforests hosting diverse and unique ecosystems. Hence, in the tropical rainforest, you will find evergreen forests with broad leaves falling throughout the year, and a huge diversity of plant and animal species.

However, not all tropical areas are rainforests. For instance, Africa's tropical region includes savannas with tall grasses, sparse trees, and varying rainfall patterns.

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Decomposers can recycle dead plants and animals into chemical nutrients such as carbon and nitrogen that are released back into the soil, air and water as food for living plants and animals. So, decomposers can recycle dead plants and animals and help keep the flow of nutrients available in the environment. Decomposers and scavengers break down dead plants and animals. They also break down the waste of other organisms. Decomposers are very important for any ecosystem. If they weren't in the ecosystem, the plants would not get essential nutrients, and dead matter and waste would pile up.

Decomposers, such as bacteria and fungi, benefit an ecosystem by breaking down dead organisms and waste, thereby recycling crucial nutrients back into the ecosystem. These nutrients enrich the soil, allowing plant growth, which in turn provides food and energy for other organisms.

Decomposers play a vital role in any ecosystem. They are organisms that degrade or break down dead organisms, and in doing so, they recycle nutrients back into the ecosystem. Examples of decomposers include bacteria and fungi.

Decomposers benefit an ecosystem by breaking down dead material and waste, thereby recycling nutrients that are necessary for life. These nutrients replenish the soil, allowing plants to grow. These plants then provide food and energy for organisms higher up on the food chain. Without decomposers, nutrients would become locked within dead organisms and not be returned to the environment. This would lead to a decline in plant growth and negatively impact the entire ecosystem.

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The relationship between tapeworm and human intestine is Parasite and Host.

Answer: Option A

Explanation:

The tapeworms are certain parasites that live in the intestines of the humans. Humans eating uncooked or not properly sterilized animal organic matter are the main cause for tapeworm infection.

They mostly do not show any symptoms in the body but at certain cases they can cause serious damages such as blocking of the stomach and the intestine.These worms are detected through stool test or blood sample analysis.

The answer is diastole

The answer is B enzymes because they speed up a reaction

Hello!

Your answer is A, the solar energy provides the energy for water to evaporate. (this energy being heat)

The reason for this is, the sun creates light, and with light comes heat. Heat causes water to evaporate into steam, and when it reaches higher points in the atmosphere, the pressure causes it to compress into what we call clouds. when these clouds become too large, They release the cooled steam as rain.

I hope this helps, and have a nice day!

Answer:

The solar energy provides the energy for water to evaporate.

Explanation:

////////

______

its b

______

/////////

Sunspots are temporary phenomena on the photosphere of the Sun that appear as dark spots compared to surrounding regions. They are caused by intense magnetic activity.

Sunspots are temporary phenomena on the photosphere of the Sun that appear as dark spots compared to surrounding regions. They are caused by intense magnetic activity.

Sunspots were discovered by the astronomer Galileo Galilei. Some sunspots can last for weeks or even months

The correct answer is - limestone.

On the image, it seems that we have a representation of rock formations in a cave. They are evidently weathering. According to the manifestation of the weathering, the color of the rocks, and that it is most probably a cave, the chances are mostly likely that it is a limestone.

The weathering appears as a result of the water. The limestone is a sedimentary type of rock, thus it doesn't have strong structure. The water is able to gradually penetrate through it, making holes in it, and little by little weather it. In this way we have the formation of the water reservoirs, springs, cave systems.

Answer:

Your answer is right it is limestone

Explanation:

The texture doesnt mach any other rock types.

Eukarya

hope this helps :)

...protein synthesis

The diagram shows the steps of protein synthesis, including transcription and translation.

The diagram in the link you provided shows the steps of protein synthesis, including transcription and translation. Transcription is the process by which an RNA molecule is synthesized from a DNA template, and it takes place in the nucleus. Translation is the process by which the RNA molecule is used to synthesize a protein, and it occurs in the ribosomes.

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Answer:

The answer is D. weather, climate

The pattern of weather in an area over a long period of time is called climate. Thus, the correct option is D.

Weather is the atmospheric condition in an area within that time period. The time period can be in minutes, hours or a day (24 hours). Weather is influenced by the temperature, air pressure, humidity, precipitation, wind and other atmospheric conditions.

Climate is the average weather in an area over a long period of time. It describes the pattern of atmospheric conditions and changes over that period.

Climate is also influenced by the latitude, altitude and proximity to water bodies.

Weather refers to the short-term changes in the atmospheric conditions whereas climate is a long-term description of the conditions.

Weather can change from day-to-day or even within minutes or hours, whereas climate is the average of these changes.

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The answer is 'can be easily observed.'

Here is an explanation:

As I have looked at a similar question that had more context, the image showed characteristics that could all be observed from the naked eye.

B. Increase water supply

All those answers decrease the amount of necessities in the forest. If the water supply were to increase, then the population of mice would increase. This is because there's now enough water for more mice. :) hope this helps

Answer: Option B

Explanation:

The carrying capacity increases as the resources in the environment increases. The resources such as water, food and shelter are the main factors that increases the carrying capacity.

The population of mouses in the forest will increase because of rain which will increase the population of mouses in the forest due to more availability of resources.

Hence, the correct answer is option B. Rain in forest will increase the population of mouses.

This response properly matches each inheritance pattern with its respective example: incomplete dominance to red and white flowers producing a pink flower, codominance to type AB blood creation, sex-linked gene to a female carrying color blindness gene on one X chromosome, and complete dominance to a dog's genotype of CC having same phenotype as a genotype of Cc.

Let's correctly match each inheritance pattern with its definition:

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Answer:

splitting atoms

Explanation:

Answer:

spitting atoms

The dough rises faster in a warmer area because the rate of a chemical reaction increases as the temperature increases

the answer is true....

pinocytosis

hope this helps :)

the process is called pinocytosis. please rate and click the thanks button if this helped