The only variables in the lab procedure are the
independent variable,
and the dependent variable,
DONE
Hypothesis: If plants grow in soil containing
worms, then the plant growth will be greater,
because worms help decompose organic
matter and distribute it through the soil in a
form that plants can use.
Notice that the only two factors that change during
the experiment are the variables of the
Worms help the soil by breaking down organic debris, so if plants are planted in it, they will grow strong and healthy. Worms do this by supplying the soil with the nutrients it needs.
What is a hypothesis ?In a scientific setting, a hypothesis (plural: hypotheses) is a tested claim regarding the relationship between two or more variables or a suggested explanation for a phenomenon that has been observed.A hypothesis is a provisional, verifiable response to a question in science. When a scientist is interested in a particular scientific inquiry, she reads up to learn what is already known about the subject. Then she uses that information to build a tentative solution to her scientific query.A scientific hypothesis is a theory that offers a speculative explanation for a phenomenon or a specific group of related events that have been observed in the natural world.To learn more about : Hypothesis
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Which of Thurstone's primary mental abilities involves being able to determine examples from general rules?
Question 15 options:
Perceptual ability
Inductive-reasoning ability
Visual-spatial ability
Deductive-reasoning ability
Thurstone's primary mental abilities involves being able to determine Perceptual ability .
Thurstone's formulate a model of intelligence centered on "Primary Mental Abilities" (PMAs), which were independent group factors of intelligence that different individuals possessed in varying degrees. The seven primary mental abilities in Thurstone's model are verbal comprehension, verbal fluency, number facility, spatial visualization, perceptual speed, memory, and inductive reasoning.
Example of Thurstone's model may be used to understand the attitude of employees in an organization during hiring process . Important parameters is verbal communication which is the ability to understand conversations. Thurstone claims that it is one of the primary cognitive skills in humans.
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The Moorish idol fish lives in coral reefs around the world. Its oceanic environment is saltier than the environment inside its cells. Ocean water contains more sodium and chloride ions than the fish's cells.
Which option best describes a challenge the Moorish idol fish faces in regulating sodium and chloride ions?
Responses
The fish must rely on passive transport to remove sodium and chloride ions.
The fish must rely on passive transport to remove sodium and chloride ions.
Sodium and chloride ions will passively diffuse into the fish's body.
Sodium and chloride ions will passively diffuse into the fish's body.
The fish will lose sodium and chloride ions to its environment.
The fish will lose sodium and chloride ions to its environment.
Transporting sodium and chloride ions into the fish's cells requires energy.
Answer:
fish live in the ocean
Explanation:
What is the purpose of a mantra?
Question 13 options:
To help people sleep.
To help people argue.
To help people explain emotions.
To help people meditate.
Purpose of a mantra is to help people meditate.
Mantra is a word or phrase you repeat during meditation it help in keeping your mind calm .It can make a lot of difference, especially if you have trouble concentrating or getting in the right frame of mind. Mantra are also believed to be responsible for building concentration and keeping one calm and composed .
When you chant mantras your mind releases the positive energy that decreases the negative thoughts or stress. Chanting mantras is an ancient practice that calms your mind and soul. some examples of mantra can be I am calm. I am present in this moment. I am at peace.
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How many cells are in interphase, how many in prophase, how many in metaphase, anaphase, telophase?
Answer:
We get 69.6 % cells in interphase, 12.5% in prophase, 8.9% in metaphase, 5.4% in anaphase, and 3.6% in telophase.
9. I want to study how people respond to a vaccination against a virus. To make sure that I am doing everything right in my study
design, I should prepare a study proposal for the...
IARB
WHO
IACUC
IRB
CDC
Before a vaccination can be used in the US, the FDA must give its approval. The safety and efficacy of vaccines are helped to some extent by FDA regulations.
What are the benefits of Vaccination?Premature deaths, hospital stays, and doctor visits can all be very expensive consequences of diseases that can be prevented through vaccination. A lot of time, money, and resources are also required for local, state, and federal outbreak responses. The US saves billions of dollars by administering immunizations on schedule.
A pathogen is a bacteria, virus, parasite, or fungus that can infect the body and cause disease. The various components that make up each infection are typically exclusive to that particular pathogen and the disease it produces. The component of a disease known as an antigen that triggers the production of antibodies. The immune system's primary component is the antibodies created in reaction to the antigen of the infection. The warriors in your body's defense system are called antibodies.
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In Pavlov’s experiments, what was an example of an unconditioned response?
Question 4 options:
The ringing of the bell when the food was offered.
The dog’s salivation when the bell was rung.
The food the dog was offered.
The dog’s salivation without stimulus.
Answer:
The dog’s salivation without stimulus.
Explanation:
Unconditioned Response is a natural response towards the stimulus, with no learned influence.
In this case, it will be the the dog's salivation without stimulus.
Why it isn't 1: The ringing of the bell is the Conditioned Stimulus, as it is used to condition the dog that "food is served" when the bell is rung.
Why it isn't 2: The dog's salivation is the result of long-term stimulus, and so it is the Conditioned Response, where the connection between the bell and food being served is already made.
Why it isn't 3: The food is the Unconditioned Stimulus.
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What type of tropism results in plants with roots growing away from the sunlight with the rest of the plant typically growing toward the sunlight?
In this type of tropism, the roots grow away from sunlight, but the rest of the plant grows toward sunlight.
That's why it's called "phototropism", it's directed towards sunlight.
The sentence is right: results in plants with roots growing away from the sunlight with the rest of the plant typically growing toward the sunlight.
Answer: Phototropism.
Examine this image of part of a flower ovary under magnification. What types of structures do you see inside of the ovary?
The type of structures which can be seen or found inside the ovary is referred to as the ovules or seeds.
What is Ovary?This is referred to as the female reproductive organ of the flower and it forms the fruit after he process of fertilization have occurred. The ovary under close observation has just one chamber which contains the seeds.
The seeds ensure that the plant species survive due to the seeds being dispersed and planted to form new species in what is referred to as reproduction which is therefore the reason why it was chosen as the most appropriate choice.
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. Brown eyes is dominant to light eyes. Mr. O’Ryan has blue (light) eyes. Mrs. O’Ryan is heterozygous
for brown eyes. What are the eye color possibilities of their son, Kellan O’Ryan? *Use letter B
Answer: 50%
Explanation:
B is dominant (brown)
b is recessive (blue)
Heterozygous is having two different alleles of a particular gene or genes.
If homozygous then it will be the same gene.
The possibilities of him having blue or brown eyes are 50%
9. The following materials can be reused, EXCEPT
A. woods
B. paper
C. aluminum cans
D. paint brush
Answer:
B. paper
Explanation:
Once paper has been used there's no other way of reusing it physically, but chemically paper can be reused in one way or another...
Have the discoveries of the extrasolar planetary systems confirmed the nebular hypothesis predictions?
The discoveries of the extrasolar planetary systems can confirm nebular hypothesis predictions, as the nebular hypothesis said that there are still remaining planets present that are undiscovered.
What is a nebular hypothesis?This hypothesis states that the Sun and all of the planets in our Solar System were originally part of a vast cloud of molecular gas and dust that collapsed some 4.57 billion years ago due to some terrible event.
Therefore, the nebular hypothesis predicted that there are still additional planets present that have not yet been identified, and the findings of the extrasolar planetary systems can corroborate those predictions.
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64. Bagels, white bread, breakfast bars, breakfast cereals and bakery muffins are NOT examples
of foods that contain refined grains.
T/F
Healthy fats are found in olive oil, avocado, flaxseed, and nuts.
T/F
In a star, hydrogen turns into helium through
A. the impact of comets with stars.
B. low pressure and high temperature in the core of the star.
C. high temperature and intense pressure in the core of the star.
D. the transfer of electrons from helium to hydrogen.
Answer:
C
Explanation:
High temperature and intense pressures causes hydrogen atoms to become unstable and collapse to form Helium.
What is causing the temperature of the earth to increase what is it called?
Answer:
Climate change/Gobal warming.
Write a brief letter to a local coalition of cattle ranchers explaining why the members should begin raising cattle on open grasslands instead of in feedlots.
Being rising cattle on open grassland instead of feedlot is really important.
Describe a feedlot.In intensive livestock farming, a particular kind of feeding operation is called a feedlot.
The basic goal of a feedlot is to feed cattle and help them gain significant body fat over the course of five months.
Describe grassland.It is a region where a practically continuous layer of grasses rules the vegetarian.
Why is it vital to raise cattle on open grassland rather than in a feedlot?There are many drawbacks to feedlots, such as the constant standing of cattle in their own feces and urine in a tight, cramped environment.
E levels may be higher in cattle whose diets are high in corn.
Cattle living in feedlots experience stress since their heavy corn-based diet results in constant health problems. Its flooring is subpar, the cattle suffer from a lack of sleep, and there are no opportunities for them to exercise or get enough rest.
On the other hand, cattle prefer open grassland since it is considerably sweeter.
Therefore, this is the rationale for raising cattle on open grassland rather than in feedlots.
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pleasse help!! Explain how the structure of a leaf is designed perfectly for photosynthesis? 15 points!
How do psychiatrists differ from clinical psychologists?
Question 7 options:
Psychiatrists typically can’t prescribe medication.
Clinical psychologists earn a medical degree and become physicians.
Psychiatrists earn a medical degree and become physicians.
Clinical psychologists typically prescribe medication.
Answer:
Psychiatrists can prescribe medication, whereas psychologists cannot prescribe medication.
Identify the phase of mitosis
described in each step, and then
put the steps in the correct order.
a. Cell membrane pinches inward,
dividing the cytoplasm and its
contents.
b. Nuclear membrane reforms and
chromosomes uncoil.
c. DNA and histones condense;
nucleus begins to break down.
d. Chromatids separate and move
to opposite sides of the cell.
e. Chromosomes line up along cell
equator; spindle fibers attach to
each chromosome.
Answer:
c. DNA and histones condense; nucleus begins to breakdown-Prophase
e. Chromosomes line up along cell equator; spindle fibers attach to each chromosome-metaphase
d.Chromatids separate and move to opposite side if the cell-anaphase
b. Nuclear membrane reforms and chromosomes uncoil- telophase
a. cell membrane pinches inward, dividing the cytoplasm and its contents-cytokinesis
2. Explain One summer vacation morning, the
weather was warm and humid. About 3:00,
heavy clouds formed, and then there was a
severe thunderstorm with rain and hail. After
the storm, the sun came out, but the tempera-
ture had dropped 15°C. Explain each change
in the day's weather.
The day-to-day change in the temperature of air on the Earth is controlled by the energies which are received and lost from the surface of the planet.
What is temperature change?
During summers, the sunrays hit Earth at a very steep angle. The sunlight does not spread out as much, thus increasing the amount of energy which is hitting any spot. Also, the long daylight hours allows Earth time to reach the warm temperatures.
The daily air temperatures at Earth's surface are in control of the incoming and outgoing energies. During the day, the temperature of air increases as energy gain exceeds the energy lost from the surface of Earth. And throughout the night, the air temperature decreases as the surface of Earth loses more energy than it receives.
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What is the molecule that transcribes RNA into DNA? A.Retrovirus B.Reverse virus C.Reverse transcriptase D.Retro Transcriptase
what are the major cell structures anfd their function
The nucleus (major organelle) holds genetic information necessary for reproduction and cell growth. Every cell has one nucleus and membrane-bound organelles in the cytoplasm. Mitochondria, a double membrane-bound organelle is mainly responsible for the energy transactions vital for the survival of the cell.vidya
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What’s the correct answer answer asap for brainlist
Answer: C
Explanation:
Describe the relationships among genes, DNA, and traits.
Responses
Traits determine the DNA in genes.
Traits are determined by genes, which are composed of DNA.
Traits are made of genes, which are composed of DNA.
Genes code for traits, which are composed of DNA.
The relationship among genes, DNA, and traits can be defined as, Traits are determined by genes, which are composed of DNA.
A trait is a phenotype that is expressed in the individual. Genes are segments of DNA that are responsible for the expression of a particular phenotype or physical characteristic. Genes code for protein through RNA resulting in the expression of a character.
DNA is the genetic material that has coding and non-coding part. The coding sequence is also referred to as the gene. The coding part of DNA undergoes translation resulting in the formation of RNA, then RNA undergoes translation to form protein and the protein is expressed as a trait.
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Based on these data what happened between 2 minutes and 3 minutes?
Answer:
C
Explanation:
snail stopped moving, as there is no change in distance travelled.
Consider two planets that have the same mass but are very different in size. Which statement describes gravitational pull that an object would experience on the surface on each planet
Answer:
Suggest what information the sugeon General would have needed to obtain in order to make a valid and reliable conclusion about the link between cigarrete smoking and lung cancer
Describe 5 different abiotic factors.
Answer:
Temperature
Air
Light
Soil
Water
Explanation:
Abiotic factors are the Non living contributors
If a person were to stay at high altitudes for a long period of time, his or her hematocrit would
increase in order to compensate for the decrease in the amount of oxygen in the air he or she is
breathing.
True
Or False
Answer:
The correct answer would be true.
Explanation:
The person would suffocate if the hematocrit didn't increase for the lack of oxygen in the air.
Some people have a disorder in
which their stomach muscles cannot contract and churn food.
What effect do you think this has on the length of time food
stays in the stomach?
Answer:
When the stomach muscles cannot contract and churn food to break it down, the food stays in the stomach longer, therefore increasing the time of digestion.
How do south Floridians get our drinking water
Answer:
Instead of snowcapped mountains that store water in advance of warmer temperatures, most of our drinking water comes from underground "mountains" of porous materials called aquifers which are replenished by rain. The Biscayne Aquifer is South Florida's lower east coast's primary source of fresh water.