Which best describes a scientific theory?

A. An idea that is supported by many different experiments

B. A hypothesis that is proven true with an experiment

C. The conclusion of a single scientist about a hypothesis

D. An educated guess about an aspect of nature

Answers

Answer 1

Answer:

Hey there!

A theory can be best described as an idea that is supported by many different experiments.

Let me know if this helps :)


Related Questions

“Science is a beautiful gift to humanity ; we should not distort it.”-A.P.J. Abdul kalam.

How does the quote you chose relate to your ideas about the importance of studying science?

Answers

It is a wrong quote. Science is supposed to keep changing as we find new information and discover that our previous theories were wrong.

What is the difference between geophysical and geochemical testing

Answers

Answer:Geochemistry  is about the chemical connection with the earth. On the other hand, geophysics is concerned with the physical relation with the earth.

Explanation:

What process is similar in function to genetic engineering but different in the mechanism it uses? A. Replication in a bioreactor B. Cellular Respiration C. Breeding for specific traits D. Genetic Calculus

Answers

Option C. Breeding for specific traits is a similar process in function to genetic engineering but different in the mechanism it uses.

Genetic engineering refers to the process of using recombinant DNA methodologies to alter the genome of a particular organism and thus obtain the desired characteristics/traits in organisms derived from them.

An example of genetic engineering is the use of recombinant DNA methodologies to develop Escherichia coli strains that generate human insulin.

Moreover, selective breeding refers to the process aimed at developing organisms with desirable characteristics by choosing parents with these traits in order to cross them and produce offspring with these phenotypic traits.

For example, wheat plants with better yields can be obtained by crossing between wheat varieties that exhibit desired phenotypic traits.

In conclusion, Option C. Breeding for specific traits has a similar objective that genetic engineering but the mechanism to reach this objective is different.

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Bears eat berries, humans, and large fish; large fish eat smaller fish and insects; humans eat bears, large fish, and berries; Venus flytraps eat insects. The scenario described here is an example of ______.

Answers

Food webs show how food chains are connected and what an ecological group eats. Therefore, this scenario represents a food web.

What is a food web?

An ecological community's food web is a graphical representation of the natural connectivity of food chains as well as the question of what consumes what in that community. The term "consumer-resource system" is another name for the "food web."

There are often two distinct kinds of food webs present in an ecosystem: a grazing food web that is supported by photosynthetic plants or algae, and a detrital food web that is supported by organisms that decompose dead matter (such as fungi).

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answer it answer it .

Answers

Answer:

Pseudopodia

Explanation:

Human uses his legs for locomotion and movement similarly in amoeba pseudopodia is used for movement in amoeba and other unicellular organisms. Pseudopodia is a structure in amoeba which is used for movement and locomotion in amoeba and it is also used for engulfing food, amoebic movement is also considered as a protoplasmic movement.

Answer:

c

Explanation:

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A possible answer to a scientific question that can be tested is a

Answers

The key to a good and manageable investigation is to choose a topic of interest, then ask what is called a “testable question.” Testable questions are those that can be answered through hands-on investigation by the student.

Some food material is given
below. What are the diffrent
possible ways of cooking them?
Find out and write them.
Meat - Groundnuts - Potatoes
Spinach​

Answers

Answer:

Meat-Boiling, Grilling, frying and roasting

Groundnuts-frying,boiling

Potatoes-Boiling frying and roasting

Which term refers to all areas of Earth where life exists?
biosphere
biome
community
ecosystem

Answers

Biosphere! Your welcome:)

The term that used to represent the land, water, surface and atmosphere of the whole planet where life exists is called the biosphere. So option A is correct.

What is the biosphere?

Multiple species make a population, population makes a community, the community makes an ecosystem, ecosystem makes a biome, and biome makes a biosphere.

The biospheres can be classified as:

Lithosphere: It consists of the land part of the earth. The lithosphere comprises plains, plateaus, mountains, etc.

Hydrosphere: The water constituent of the earth forms the hydrosphere. It includes rivers, oceans, lakes, ponds, etc.

Atmosphere: The air surrounding the earth comprising of varying gases forms the atmosphere of the earth.

So biosphere is the largest unit of ecology which include the whole planet like earth in it. So option A is correct.

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A garden has a length of 1.5 x102 m and a width of 0.5 x 102 m. what is the area of the garden?

Answers

Answer:

7.5 × 10^3 m^2

Explanation:

The garden described in this question takes the shape of a rectangle, which has a length of 1.5 x102 m and width/breadth of 0.5 x 102 m.

To calculate the area, we use the formula for calculating the area of a rectangle, which is;

Area = length (L) × width (w)

Area = 1.5 x102 m × 0.5 x 102 m

Area = 150 × 50

Area = 7500

This, the area of the garden is 7500m^2 or 7.5 × 10^3 m^2

Suppose you take glycine tRNA and modify it so that the glycine is changed to valine. You then find that the amino acid sequence in the generated proteins does not show the expected change. This result would suggest that the protein synthesis machinery recognizes the _______ and is _______ with what was actually found by researchers.

Answers

Answer:

Suppose you take glycine tRNA and modify it so that the glycine is changed to valine. You then find that the amino acid sequence in the generated proteins does not show the expected change. This result would suggest that the protein synthesis machinery recognizes the tRNA anticodon and is congruent with what was actually found by researchers.

Explanation:

A group of researchers led by Seymour Benzer demonstrated that the anticodon of the charged tRNA was recognized by the protein synthesis machinery, when they changed the amino acid sequence. This example shows the exact result as found by the researchers.

"Wow! This rose bush is doing so much better on this side of the house than
on the other side. I wonder why that is?"

Answers

East or South side is best

Explanation:

Roses do best in full sun and morning sun is the best place. so always plant roses the along an east wall or south side of your home

The theory of plate tectonics is supported by _______. The Eurasian and African plate are pushed away from the North and South American Plates at the _______. _______ is where rocks are carried back into the mantle of the earth. _______ iron can be magnetized by the magnetism of the earth. Subduction of the ocean floor occurs in _______. Respond to the following based on your reading. Why have rocks older than 200 million years never been found in the oceans? Explain how the movement of tectonic plates is responsible for this recycling of the ocean floor.

Answers

Answer:

1. ridges and trenches (either answer is acceptable)

2. mid-atlanitc

3. subduction zone

4. molten

5. oceanic trenches

Explain:

6. Rocks in the ocean eventually get subducted back into earths mantle due to slab pull. New rocks form at mid-ocean ridges as ridge forces two plates to diverge.

1. ridges and trenches (either answer is acceptable)

2. mid-atlanitc

3. subduction zone

4. molten

5. oceanic trenches

Explain:

6. Rocks in the ocean eventually get subducted back into earths mantle due to slab pull. New rocks form at mid-ocean ridges as ridge forces two plates to diverge.

Explanation:

The pronghorn antelope resides in temperature grassland biomes of North America. Their primary predators in this region are wolves, coyotes, cougars, and bobcats. The reason pronghorn antelope are not found outside of North America is most likely that Group of answer choices

Answers

Answer:

The options are

A) there are too many pronghorn predators outside North America.

B) its temperature requirements are stringent and not met outside North America.

C) it is a relatively new species in evolutionary terms.

D) its nutritional requirements cannot be met outside this region.

E) it has never dispersed beyond this region.

The answer is E) it has never dispersed beyond this region.

The pronghorn antelope resides in temperature grassland biomes of North America. The reason pronghorn antelope are not found outside of North America is most likely that it has never dispersed beyond this region which could be due to the suitability of the environment to their survival.

Which kind of research is most likely to improve the health of the
environment?

Answers

Answer:

The environment   play a role in people mental and physical being.

Explanation:

Environment  quality and human health  remain factors and taking into multiple interactions economic and cultural context.

Environment through air pollution, chemicals, poor quality water and natural area loss, increase in rates obesity, diabetes, and diseases.

Environment factors are particular matter, environmental tobacco smoke leading,and indicative ranking of environmental impacts of health.

Environment across depend on the pressures relate to pollution and natural resources,pollution reduction and the natural environment distribute populations.

Environmental quality can be policy and population group, incomes, elderly and the educational status, environment burden they focus on health and complex causal path.

The destruction of an organism's habitat either through human impact or natural causes, such as a fire or flood, increases the likelihood that an organism could become extinct. Which of the following could also increase an organism's chances of extinction? A. an increase in predation, competition, and/or disease B. a lack of genetic diversity in an organism's species C. the inability to reproduce D. all of these

Answers

Answer:

D

Explanation:

all of those are likely to increase an organisms chances of extinction

What are the uses of the whorls of the flower ​

Answers

Answer:

The outermost whorl of the flower has green, leafy structures known as sepals. The sepals, collectively called the calyx, help to protect the unopened bud. The second whorl is comprised of petals—usually, brightly colored—collectively called the corolla.

what type of cash crops have been genetically modified..... please help!!!!!

Answers

Answer:

Most food modifications have primarily focused on cash crops in high demand by farmers such as soybean, corn, canola, and cotton. Genetically modified crops have been engineered for resistance to pathogens and herbicides and for better nutrient profiles.

Explanation:

pros and cons of genetically modifying the animals people eat? ​

Answers

Answer:

Explanation:

   GMOs are food items that have been made using genetic engineering techniques. ...

   GMO foods are easier and less costly for farmers to grow, which makes them cheaper for the consumer. ...

   The main concerns around GMOs involve allergies, cancer, and environmental issues — all of which may affect the consumer.

The advantages include improved human health, increased food production, reduced environmental impact, and so on. There is a risk that new diseases originating in genetically engineered animals will be transmitted to non-genetically engineered animals, including humans.

What is genetic engineering?

Genetic engineering (also known as genetic modification) is a process that uses laboratory-based technologies to alter an organism's DNA makeup.

This could be as simple as changing a single base pair (A-T or C-G), deleting a region of DNA, or adding a new segment of DNA.

Gene therapy aims to modify genes in order to correct genetic flaws and thus prevent or cure genetic diseases. The goal of genetic engineering is to modify the genes in order to improve the organism's capabilities beyond what is normal.

The benefits include improved human health, increased food production, and reduced environmental impact, among other things. There's a chance that new diseases originating in genetically engineered animals will spread to non-genetically engineered animals, including humans.

Thus, these are some pros and cons of the genetically modified animals.

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1.What is the Independent Variable?
5 points
Connor and Miguel want to investigate if the type of
fertilizer changes the color of their hydrangea flowers.
They select 10 hydrangea bushes and plant them in the
same yard with the same type of soil. Every bush gets 3
cups of fertilizer, but each receiving a different brand.
One bush gets no fertilizer. All bushes receive morning
sunlight and no afternoon sunlight. All bushes are watered
the same amount every other morning. After four weeks,
the boys observe the color of the blooms on each bush.
the bush
the soil
the fertilizer
the color of the plants

Answers

Answer:

the type of fertilizer

Explanation:

because independent variable is something that effects that the whole outcome of the experiment and here the type of fertilizer chosen is going to be the thing that is going to effect the ending result

Can someone describe these:
Menstrual Phase
Follicular Phase
and Luteal phase

Thanks!!!

Answers

Answer:

(menstrual phase) this is the phase where the unfertilized ovum and endometrium that was formed in readiness for implantation slough off or come out due to a sudden drop in progesterone levels

(follicular phase) this is where the graafian follicle in the ovary develops. from primary follicles due to secretion of follicle stimulating hormone by the pituitary gland and matures there after due LH hormone which will also stimulate the ovary to release the ovum

(luteal phase)this is the phase after the ovum has been released where the remains of the ruptured graafian follicle undergo reorganization to form a corpus luteum/yellow body which now produces progesterone which causes thickening of endometrium in readiness for implantation

hope this helps

Answer:

The menstrual cycle is the regular natural change that occurs in the female reproductive system that makes pregnancy possible. 2) The follicular phase is a phase of the estrous cycle during which follicles in the ovary nature from primary to a fully mature grafian follicle.It ends with ovulation.3) The luteal phase begins during the second half of a menstrual cycle normally lasting around 12 14 days after the ovulation and it is responsible for producing progesterone.

Which pairings match protozoa with the structures they use to move? amoeba: flagellum; euglena: cilia; paramecium: pseudopod amoeba: pseudopod; euglena: flagellum; paramecium: cilia amoeba: flagellum; euglena: pseudopod; paramecium: cilia amoeba: pseudopod; euglena: cilia; paramecium: flagellum

Answers

Answer:

The correct answer is -  amoeba: pseudopod; euglena: flagellum; paramecium: cilia

Explanation:

Protists use different type of structures for their movement known as pseudopods, flagella, and cillia.

Pseudopods are the structures found in amoeba in which flowing of protoplasm moves the amoeba forward.

A euglena moves by strikes or whip its flagellum, that is a long appendages, like propeller of a helicopter.

Cilia are thin, very small tail-like structure that stretched outward from the of body of paramecium.

Thus, the correct answer is -  amoeba: pseudopod; euglena: flagellum; paramecium: cilia

please answer fast
difference between fish and frog on the habitat and structure of heart

Answers

Answer:

the answer is this

Explanation:

hope this help

good luck for your homework

1.What is meant by Plasma therapy ? Is it a remedial treatment for Coronavirus? Express your answer with valid points

Answers

Answer:

It is a therapy that involves the use of plasma from recovered patients (which is composed of antibodies against the virus)

Explanation:

The immune system of patients already recovered from viral diseases naturally generates defensive molecules that circulate in the blood. These molecules are known as 'antibodies', and they are localized in the plasma of the blood, which is composed of coagulation factors, albumin, fibrinogen and, of course, antibodies. These antibodies bind to specific viral antigens in order to promote their neutralization and destruction. In consequence, the plasma from recovered patients contains particular antibodies that may be used to treat specific diseases.

Which state of water concentration is healthiest in an animal cell?
A. Isotonic
OB. Hypertonic
C. Equitonic
D. Hypotonic

Answers

Answer:

D. Hypotonic

Explanation:

Answer:

C. Isotonic

Explanation:

i took the quiz and its right

How much time is required for a P-wave to travel 6,000 kilometers?

Answers

Answer:

294.1 minutes

Explanation:

5,882 seconds (98 minutes) to travel 2,000 km.

2,000 x 3 = 6,000

5,882 seconds x 3 = 17,646

(294.1 minutes) to travel 6,000 km

Proteins in the cell membrane have many functions. Which type of protein would be used for cell recognition and as a receptor? A. Pore proteins B. Endoplasmic proteins C. Glycoproteins D. Integral proteins

Answers

Answer:

C. glycoproteins

Explanation:

Glycoproteins are proteins containing glycans (oligosaccharide carbohydrates) attached to amino acid side chains. These oligosaccharides are attached to the amino acid chain by a posttranslational modification referred to as glycosylation, a modification generally found in extracellular regions. Glycosylation refers to the chemical reaction in which a glycosyl donor (i.e., the carbohydrate) is attached to a functional group in the protein. The glycosylation sites play distinct functional roles for both cell interactions and cell recognition. Moreover, glycosylation sites are also essential for substrate recognition by an enzyme. For example, secreted cytokines are glycosylated, which is required for their binding to receptors.

A scientist is conducting research about all the plants and wildlife in the Mojave Desert as well as the desert’s resources, such as water and soil. The scientist is studying
a community.
a population.
a species.
an ecosystem.

Answers

Answer:

an ecosystem. I got it right on edge 2020.

Explanation:

A scientist is conducting research about all the plants and wildlife in the Mojave Desert this scientist is studying an ecosystem.

What is the ecosystem?

An ecosystem is a set formed by the interactions between biotic components, such as living organisms: plants, animals and microbes, and abiotic components, chemical and physical elements, such as air, water, soil and minerals.

Broad categories of terrestrial ecosystems are called biomes. In ecosystems, matter and energy are conserved.

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Write a few sentences explaining whether the following theme from The Outsiders is universal: “People often struggle to fit in; they question the right way to live their lives.”

Answers

Sample Response: This theme is universal. It can apply to all people, and most people struggle with this question.

"When human settlers arrived on the island of Mauritus, they caused the Dodo bird species to become extinct within 50 years. What did the settlers do to cause their extinction?"

Answers

Answer:

It's commonly believed that the dodo went extinct because Dutch sailors ate the beast to extinction after finding that the bird was incredibly easy to catch due to the fact it had no fear of humans.

Explanation:

What concept from microbiology is the most challenging and why? What can you do to learn more about this concept as you progress through nursing program and career?

Answers

Answer:

The overview of the particular topic is discussed in the section through the below clarification.

Explanation:

Microbiology seems to be the branch of philosophy that deals with some really small sentient creatures like bacteria as well as about there impact on human health. The profession deals with the analysis, component, as well as classification of such species, including to exploit as well as regulate their transactions.Nevertheless, their using it as manufacturing applications is usually a complex idea of microbiology. To understand everything concerning this idea, you will concentrate on several aspects of biotechnology to properly appreciate how would control micro-organisms to generate valuable material.
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