Answer:
Before you begin to plan a scientific investigation you first a Perform background research to learn what is already known about the question you are trying to answer. You Create the data that will support your hypothesis.
Explanation:
Step 1: Record your observations.
These should be objective rather than subjective observations. In other words, the findings should be able to be independently verified by other scientists. Subjective observations based on personal views and opinions are not considered scientific. Here's an example of an objective statement: The temperature in this room is 58 degrees Fahrenheit. Here's an example of a subjective statement: This room has a pleasant temperature.
Making objective observations is the first stage in the Scientific Method. These assertions are based on specific events that have occurred and can be verified as true or incorrect by others.
Step 2: Come up with a hypothesis.
Our observations provide information about the past or present. We want to be able to forecast future events as scientists. As a result, we must rely on our reasoning abilities.
Scientists use historical data to establish a general principle or explanation that may be used to anticipate future events. A hypothesis is the term for the general principle. Inductive reasoning is the type of reasoning involved (deriving a generalization from specific details).
Step 3: Make an educated guess.
Step 2 resulted in a tentative hypothesis that may or may not be correct. How will we know whether our hypothesis is correct?
Our theory should be broad in scope and apply consistently over time and space. Scientists are rarely able to test every possible scenario in which a hypothesis could be valid. Consider the following hypothesis: A nucleus can be found in all plant cells. We can't test this idea by looking at every living plant and every plant that has ever lived. Instead, we use deductive reasoning to make a prediction. We can make the following prediction based on our hypothesis: Each cell in a blade of grass will contain a nucleus if I inspect it.
4. Carry out an experiment.
To gather information, we once again rely on our sensory sense. Based on our prediction, we devise an experiment.
The following is a possible scenario for our experiment: A total of 1000 patients aged 50 to 70 will be randomly allocated to one of two 500-person groups. The experimental group will receive Celebra four times daily, whereas the control group will receive a starch placebo four times daily. Patients will not be able to tell if their tablets are Celebra or placebo. The medications would be taken for two months by the patients. Medical exams will be performed at the end of the two-month period to see if the flexibility of the arms and fingers has changed.
Step 5. Analyze the results of the experiment.
The experiment produced the following results: 350 of the 500 people who took Celebra reported diminished arthritis as the end of the period. 65 of the 500 people who took the placebo reported improvement.
Step 6. Draw a conclusion.
From our analysis of the experiment, we have two possible outcomes: the results agree with the prediction or they disagree with the prediction. In our case, we can reject our prediction of no effect of Celebra. Because the prediction is wrong, we must also reject the hypothesis it was based on.
Step 7. Report your results.
Scientists publish their findings in scientific journals and books, in talks at national and international meetings and in seminars at colleges and universities. Disseminating results is an essential part of the scientific method. It allows other people to verify your results, develop new tests of your hypothesis or apply the knowledge you have gained to solve other problems.
to maintain homeostasis, freshwater fish must ________.
Answer:
Excrete large quantities of water
Microorganisms commonly associated with the human body are traditionally referred to as the ________.
Answer:
they are traditional called disease
helppppppppp!!!!!!!plssss
Answer:
Elements which possess characters of both metals and non-metals are called metalloids a and b for 11 and 12
Explanation:
2. In which part of the cell does respiration happen?
Answer:
The respiration would happen in the mitochondria.
Hope I helped! ☺
Which biome is predominant throughout South America, Africa,
and South and Southeast Asia?
Answer:
I think the answer is tropical rainforests
Explanation:
Answer:
Tropical rainforests are mainly located between the latitudes of 23.5°N (the Tropic of Cancer) and 23.5°S (the Tropic of Capricorn)—the tropics. Tropical rainforests are found in Central and South America, western and central Africa, western India, Southeast Asia, the island of New Guinea, and Australia.
PLEASE HELP GIVING BRAINLIEST
The process by which a less specialized cell matures into a more specialized cell is called ________.
(Cell) differentiation
Antibiotics are a type of medicine that kills bacteria. Antibiotics can be used to fight bacterial infections. Which of the following diseases could antibiotics be used to treat?
common cold
strep throat
AIDS
rabies
Answer: I think there is medicine can treat common cold, strep throat, rabies you got to get a shot and aids you can get a shot for too!
I think. Um please tell me if I am wrong. If I am right plz give me brainlyest
Explanation:
Why do muscles work in pairs
Answer:they only pull in one direction
Explanation:
Answer
Skeletal muscles only pull in one direction. For this reason they always come in pairs. When one muscle in a pair contracts, to bend a joint for example, its counterpart then contracts and pulls in the opposite direction to straighten the joint out again.
have some points part 5
the ocean is a soup. discuss.
Answer:
Wow thanks, r u trying 2 get rid of ur points or something?
Explanation:
An object with a mass of 20 kg and potential energy of 584 J is what distance above the ground
Answer:
29.2 m
Explanation:
P=mh. Plug in the values.
584 J = 20 kg x h
h = 29.2 m
If it's gravitational potential energy multiply is by gravity which I think is 10 m/s.
How many cubic centimeters are in 55 milliliters
what is the longest and strongest bone in the human body
Answer:
The femur
Explanation:
blood flow through the kidney includes a feature seen in only a few organs. what is it?
Answer:
portal system is the answer
Which describes the GENOTYPE that would result in 100% of the offspring of a black chicken crossed with a white chicken if the alleles are codominant?
Answer:
On mating a black chicken with white chicken, the offsprings will inherit B allele from black parent and W allele from white parent. The genotype of offsprings will be BW
Explanation:
Which organelle ensures that after cell division each daughter cell has the correct number of chro-
mosomes?
(a) the nucleus
(b) the endoplasmic reticulum
(c) the centriole
(d) the cytoskeleton
Answer:
(c) the centriole
Explanation:
(c) the centriole
Triploblastic animals have three germ layers. The outer layer is called the , the inner layer is called the , and the intermediate layer is called .
Answer:
The outer layer, called the crust.
The inner layer is called The subcutis.
The intermediate layer is called mantle layer.
Explanation:
I hope it helps
Triploblastic animals have three germ layers. They are the following:
The outer layer is called the Ectoderm.The inner layer is called the Endoderm.The middle layer is called the Mesoderm.What do you mean by germ layers?The germ layers may be defined as a group of cells that develops in an embryo. These germ layers are responsible for the generation of organs and tissues as the embryo develops.
The ectoderm forms the brain, spinal cord, eye, skin, and hair. The mesoderm is responsible for the formation of the notochord, bone, circulatory system, muscles, and connective tissues. The endoderm leads to the formation of the stomach, liver, pancreas, lungs, and urinary bladder.
Therefore, Triploblastic animals have three germ layers. They are ectoderm, mesoderm, and endoderm.
To learn more about Germ layers, refer to the link:
https://brainly.com/question/7176648
All producers and autotrophs go through photosynthesis?
False ?
True ?
Because autotrophs produce their own food, they are sometimes called producers. ... Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose.
You are used by a plant in photosynthesis
这到底是什么意思。
本题已由中国数学会官方解答（现有会员：3人）
Answer:
Yes?
Explanation:
I don't exactly understand the question but yes the carbon dioxide (co2) you breathe out is used by plants where they break it into carbon and oxygen, release the oxygen for us to breathe, and us the carbon to create glucose and ATP.
I'm involved with the digestive activities of the cell; Who am I?
A. Lysosomes
B. Chloroplast
C. Nuclear
D. Membrane
Which of the following is not a future impact of global warming?
Less land
Less methane
More drought
Human migration
Answer: Less methane
Explanation:
The following is not a future impact of global warming: less methane, which is present in option B, as methane is a potent greenhouse gas that contributes to global warming when released into the atmosphere.
Global warming can contribute to sea-level rise, which may lead to the loss of coastal areas and low-lying land due to increased flooding and erosion. Rising temperatures can alter precipitation patterns and lead to increased evaporation, which can result in more frequent and severe droughts in certain regions. Global warming can disrupt ecosystems, affect agriculture, and alter living conditions in vulnerable areas, potentially leading to increased human migration as people seek more habitable and stable environments.
Learn more about global warming here.
https://brainly.com/question/12908180
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What is needed for a hormone to perform its function?
- a receptor molecule only
- a target cell only
- a target cell with the right receptor
- the nucleus of the target cell only
defenition of osmosis in your own words
Answer:
Osmosis is the scientific process of transferring fluid between molecules. When molecules move in and out of a cell to achieve the same concentration of something, like salt, on both sides, then osmosis is happening. ... The fluid might go back and forth a few times until both solutions are equally concentrated.
Answer:
Movement if water molecules from the region of higher concentration to the region of lower concentration, down a concentration gradient, through a partially permeable membrane, till it reaches equilibrium state.
What type of tissue comprises wood in woody stems?
Answer: Woody plants have an extra layer of protection on top of the epidermis made of cork cells known as bark. The vascular tissue of the stem consists of the complex tissues xylem and phloem which carry water and nutrients up and down the length of the stem and are arranged in distinct strands called vascular bundles.
Explanation:
Bark protects woody plants' epidermis with cork cells. Xylem makes up most of a stem's wood, while phloem is in the bark.
What makes up most of a woody stem?Many shrubs and plants have woody stems. The most notable distinction between the two kinds of stems is that woody stems are mostly made of firm cork rather than soft epidermis. As the cork ages, it develops bark and hard woods.
The inner and outer derivative products of the vascular cambium are secondary xylem (wood) and phloem. The primary constituents of xylem are dead cells with thicker cell walls rich in cellulose, hemicelluloses, and lignin. Xylem serves as the plant's mechanical support system and conductor of water and minerals.
Learn more about woody stem, here:
https://brainly.com/question/146263
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Venus, the moon, Mars, and the Sun are all visible in our sky. All but one of these reflect light from another source. Which of the following produces its own light?
Answer:
The sun
Explanation:
The sun is a star and a star produces its own source of light
A biology teacher placed a chicken egg in vinegar to dissolve the shell, exposing the cell membrane. The teacher then placed the egg in a solution of sodium chloride (salt) in water in order to demonstrate cellular transport. The teacher recorded the mass of the egg before and after placing it in salt water.
What is the change in mass demonstrating?
A)facilitated diffusion
B)active transport
C)filtration
D)osmosis
Answer:
D
Explanation:
This was my science project in like 5th grade (it's really cool!!!)
Oxygen is essential in cellular respiration. What is the role of oxygen in the electron transport chain?
How are carbs,Lipids and proteins similar to one another
Answer:
All are macromolecules/polymers, have monomers (though different kinds), and help perform bodily functions.
Advanced Biology answer: All are macromolecules with functional groups that make them function uniquely from each other. Their monomers all have a complex of bonds and atoms that give them shape, helping function.
who is father of Genesis
Answer:
Abraham
Explanation:
What can be used to diagnose bacterial diseases
A bacteria culture test can help find harmful bacteria in your body. During a bacteria culture test, a sample will be taken from your blood, urine, skin, or other part of your body. The type of sample depends on the location of the suspected infection.
