which type of scientific inquiry requires variables and control group

Answers

Answer 1

Answer:The correct answer will be options-a scientific question, a procedure and a conclusion

Explanation:

The scientific investigation is performed to answer, understand and explain the natural events or phenomenon.  The scientific investigation is performed through one of the types of scientific investigation that is descriptive, comparative, and experimental.

The common components of all types of investigation are :

1. Scientific question: the question is asked on the basis of observation made which could be answered.

2. Procedure: the sequential steps are followed to answer and test the scientific question.

3. Conclusion: the main aim of the investigation is the conclusion or inference to the scientific question which is an explanation of the question.

Explanation:

Answer 2
Dhhdbej Dundee Fiji’s

Related Questions

Approximately how many mutations occur naturally in DNA per 10,000 bases?
A. 2
B. 2000
C. 200
D. 20

Answers

Explanation:

Modern methods indicate that the mutation rate is roughly one to two mutation per 10,000 genes per generation.

In human cells, approximately TWO (2) MUTATIONS occur naturally in DNA per 10,000 bases (Option A is correct).

The mutation rate (u) refers to the occurrence of new mutations in a given nucleotide sequence over time.

In human cells, the mutation rate is approximately 10⁻⁴ per generation.

Therefore, in a DNA sequence that has 10,000 base pairs of length, this value is equal to 2 mutations per generation (u = 2 / 10,000 = 10⁻⁴).  

In conclusion, approximately 2 MUTATIONS occur naturally in DNA per 10,000 bases (Option A is correct).

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can you suggest me some biology experimental project work topics?​

Answers

Answers:

1. General

2. Reproduction

3. Health

4. Genetic Engineering

5. Technical Experiments on Humans

6. Relationships and Media

7. War

8. Information and Communication Tech

9. Computer Science and Robotics

What is the main cellular structure involved in respiration?

Answers

Answer:

The mitochondria is the main cellular structure involved in respiration

by which large pieces of food are cut and crushed into
smaller pieces is called
a. emulsification b. chemical digestion
c. absorption de mechanical d
5. The tube that connects the mouth to the stomach is the
a. esophagus. b.epiglottis
c. peristalsis. d. pancreas.
5. The hard, outer coating of the tooth is called
a, a molar.
b. enamel.
c. an enzyme. d. dentin
- The building blocks of proteins are
a. enzymes. b. minerals,
c. amino acids, d. molecules
5. Which of the following vitamins is made by the body?
a. vitamin D- b. vitamin A c. vitamin C d. vitamin B
. Having too little of the mineral iron can cause
a. rickets.
b. goiter.
c. anemia d. beriberi.
The wavelike motion that moves food through the digestive tract is called
a. emulsification b. digestion. c. oxidation d. peristalsis.
. The enzyme that digests proteins is called
a. gastric juice. b. pepsin. c. chyme. d. lipase.
Food leaves the stomach in a thick, liquid form called
a. chyme. b. bile с. pepsin.
d. saliva
The movement of food molecules from the digestive system to the blood is called
a. emulsification. b. chemical digestion. c. absorption d. peristalsis.
Gastric juice contains all of the following except
a. hydrochloric acid
b. mucus c. pepsin
d. bile
The process by which large food molecules are broken down into smaller food
molecules is
a. chemical digestion. b. oxidation c. mechanical digestion d. absorption
d. mouth
Fats are digested in the
a. large intestine b. small intestine. c. stomach.
Poor nutrition caused by an unbalanced diet is called
a. rickets. b. anemia. c. malnutrition
d. goiter.
The fingerlike projections on the lining of the small intestine are called
h cilia
d. villi.
c. bile

Answers

Answer:

by which large pieces of food are cut and crushed into

by which large pieces of food are cut and crushed intosmaller pieces is called:

d. mechanical digestion

5. The tube that connects the mouth to the stomach is the:

a. oesophagus

5. The hard, outer coating of the tooth is called:

b. enamel

- The building blocks of proteins are:

c. amino acids

5. Which of the following vitamins is made by the body?

a. vitamin D- b. vitamin A c. vitamin C

. Having too little of the mineral iron can cause:

b. goitre

The wavelike motion that moves food through the digestive tract is called:

d. peristalsis

Gastric juice contains all of the following except:

d. bile

The process by which large food molecules are broken down into smaller food

The process by which large food molecules are broken down into smaller foodmolecules is:

c. mechanical digestion

Fats are digested in the:

b. small intestine

Poor nutrition caused by an unbalanced diet is called:

c. malnutrition

The fingerlike projections on the lining of the small intestine are called:

b. villi

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Answer:

d. mechanical digestion

a. esophagus

b. enamel

c. amino acids

a. vitamin D

c. anemia

d. peristalsis

b. pepsin

a. chyme

c. absorption

b. mucus

a. chemical digestion

b. small intestine

c. malnutrition

b. villi

Not 100% sure on some of these but very positive on most of them :) Hope this helps.

Explanation:

If you have a measurement of 234.005 k, how many significant figures does it have

Answers

Answer:

It has 6 sig figs

Explanation:

235.005

Every digit is significant.

Need help someone knows the answer

Answers

Answer:

d. landfill materials

Explanation:

Which type of plate boundary would be most likely to lead to above-ground volcanic activity?

A . Subduction
B .divergent
C.collisional
D . Transform

Answers

Answer:

A.Subduction

Explanation:

In a subduction zone, one plate slides beneath another. This leads to friction that can melt the crust and result in volcanic activity

Which is a benefit of binomial nomenclature?
1.Fewer common names
2.Increased understanding and communication
3.Reduced plant-related poisoning
4.Better understanding of genetics of plants

Answers

2) Increased understanding and communication.

Various cultures and societies shape individual names for a particular organism. However, binomial nomenclature breaks this barrier to allow the scientific community to communicate more efficiently.

For example, the panther or mountain lion can simply become Puma concolor — thus, eliminating confusion. I hope this helps.

why is the product MILO not a suitable for a vegan diet

Answers

MILO and MILO products may not be suitable for a vegan diet due to:

MILO and its products consist mainly of cocoa, malt barley, sugar, and milk powder. Milk powder essentially comes from animals.A vegan is a person whose lifestyles exclude animal products, especially when it comes to diets. A vegan diet primarily consists of plant and plant products.

Hence, the fact that MILO consists of powder milk which is animal-based might make it unsuitable for a vegan diet.

More about vegan diets here: https://brainly.com/question/16160533

Answer:

Explanation:

VEGAN DIET

A Vegan diet refers to diet that contain food from plants such as maize , beans, rice, wheat e.t.c It is mainly plants source and does not contain animal source.

But MILO is also Plant based energy and it contains several vitamins and minerals to help grow a healthy body: It contain Vitamins B2 and B3 which help to support effecient energy release in the body. It contain Essential nutrients like iron, zinc which are very minute

in plant based diets. Milo contain milk which is of animal source.

Therefore, Milo product is not suitable for a vegan diet because it contains milk solids which is derive from animal source.

Which of the following is an example of a physical change?
O A. A gas is given off when two substances are mixed.
B. A copper rod is hammered into a thin sheet.
C. A solid forms when two clear liquids are mixed.
O D. A matchstick changes color when it burns.

Answers

A gas is given off when two substances are mixed.

physical change: A copper rod is hammered into a thin sheet.

A solid forms when two clear liquids are mixed.

A matchstick changes color when it burns.

explanation

a physicals change vs chemical

physical change is like cutting, changing shape etc, it the molecules that make it and the chemicals of it stay same

chemical change when it chemically changed such as cooking meat

The Answer is B

B. A copper rod is hammered into a thin sheet.

Physical change does not affect the chemical components of the material and the rod was only hammered to change it shape (thus altering a change in the physical aspect)

Where do convection currents occur atmophere

Answers

Answer:

Convection takes place in the atmosphere, in the oceans, and in Earth's molten subcrustal asthenosphere.

Explanation:

What is one of the causes of mechanical weathering?

A. acid rain
B. oxidation
C. animal actions
D. carbon dioxide

Answers

C. animal actions

Others are chemical examples.

i think your answer might be animal actions

If any type of rock experiences intense heat and pressure, it changes into __________ rock.

Answers

Answer:

metamorphic rock is the answer to your question.

metamorphic rock is the answer

Carbohydrates info
A. AKA:
B. Composed of:
C. Monomer:
D. Polymer:
E. Functions:

Answers

A: Carbs
B:Carbon, hydrogen and oxygen
C:Monosaccharides
D:Polysaccharides
E: Provides energy to the human body.

Using the following nucleotide sequence, predict the complementary strand sequence:
5'-TTAAACCCGTTGGAAC-3'



5'-AATTTGGGCAACCTTG-3'

3'-AATTTGGGCAACCTTG-5'

03-CCGGGTTTACCAAGGT-5'

0 3'-TTAAACCCGTTGGAAC-5'

Answers

The predicted the complementary strand sequence for 5'-TTAAACCCGTTGGAAC-3' is 3'-AATTTGGGCAACCTTG-5'.

What is DNA?

Deoxyribonucleic acid or DNA is a double helix molecule composed of two complementary strands.

According to the base pair rules, Adenine pairs with Thymine and Guanine pairs with Cytosine.

In conclusion, the predicted the complementary strand sequence for 5'-TTAAACCCGTTGGAAC-3' is 3'-AATTTGGGCAACCTTG-5'.

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Answer:

Your answer would be AATTTGGGCAACCTTG-5′

Explanation:

Is a ping pong ball a nonliving or living thing and why

Answers

Answer:

A ping pong ball is nonliving because it does not have a brain or living cells. It is plastic.

Identify the four key concepts of Darwin's theory of natural selection. (2 marks)
Explain how Lamarck's theory was different and why it got rejected over time. (2 marks)

Answers

The answer above me is correct

Why do plant cells have chloroplasts?

Answers

Answer:

The chloroplast has chlorophyll and the chloroplasts also helps with makes photosynthesis happen. It takes the suns energy and turns it into energy for the plant. So it uses solar energy and makes chemical energy.

Explanation:

Which of these is the main cause of habitat fragmentation? O A. Reduction in genetic diversity O B. Migration of mammal species O C. Demand for land use O D. Extinction of bird species​

Answers

Answer:

C. Demand for land use

Explanation:

Habitat fragmentation usually occurs because of human activities such as new roads, parking lots, and housing developments. Organisms need their specific habitat for survival, and fragmentation is a leading threat to many terrestrial animals.

Look at the branching tree diagram below.

A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right with the following traits Four limbs, Amniotic egg, Fur, Shearing teeth, and Retractable claws. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Amphibians, Reptiles, Marsupials, Dogs, Cats.

Which group of organisms evolved after dogs?

Only cats
Only marsupials
Both cats and marsupials
Both amphibians and reptiles

Answers

Answer:

both cats and marsupials

Answer:   Both Amphibians and Reptiles

Explanation: I took the test and got it, so.....

Produces proteins drop down menus

Answers

Explanation:

Ok, then what do you need explanation for that ??

Why do doctors have to check what blood type a person has before receiving a
transfusion?
0
A. Different blood types have different antibodies that will be attacked by someone with
antigens against that blood type.
B. Different blood types have different antigens that will be attacked by someone with
antibodies against that blood type.
C. Your blood type doesn't matter as long as you get the correct amount of blood in a
transfusion.
O
D. They need to have the same blood type because their DNA must be similar enough to
blend or will cause side-effects and possibly be rejected.

Answers

Answer:

A. Different blood types have different antibodies that will be attacked by someone with

antigens against that blood type.

Does anyone know the answer for 1?

Answers

The correct answer of question number 1 is D. Sill

What is the powerhouse of the cell called?

Answers

Mitochondria is called the powerhouse of the cell.

Hope this helps! Have a great day :)

Mitochondria are known as the “powerhouse of the cell.”

Science, Geology, Class 8

1. choose the correct answer ( CTCA )
a. what makes the soil fertile?
i. rock particles
ii. humus
iii. sand particles
iv. silt particles​

Answers

Answer:

Humus

Explanation:

Also known as the uppermost layer of soil, that's for making soil more fertile due to its organic content.

state te type of cell devision of cross section tips of onion root.​

Answers

mitosis and/or meiosis is the anwser

How are proteins and nucleic acids related?

Answers

Answer:

C) The structure of proteins is determined by nucleic acids.

Explanation:

Protein is a polypeptide-based molecule. Polypeptides are a type of biological molecule made up of chains of amino acids. Nucleic acid, which comprises deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), is a family of macromolecules made composed of long chains of polynucleotides (RNA).

OAmalOHopeO

All enzymes which catalyze the chemical reactions of a cell are
a. carbohydrates b. lipids c. long-chain fatty acids d. proteins e. ribonucleic acids no another by differences in​

Answers

Answer:

I think the answer will be protein.

Answer:

the answer is carbohydrates

What are the physical characteristics that all specimens have in common

Answers

1. All living organisms are made of cells which perform functions necessary for that organism to survive in its environment
2. All living organisms, weather single called or multicellular, expand energy.
3. We all grow and change through the process of cell division or mitosis.
4. Reproduction (either sexually or asexually) - this allows our species to still exist.
5. Adaptation - we all adapt to an environment other species can’t.

The physical characteristics that all specimens have in common can be presence of cells, as there is no specimen given, let's take animals. A dichotomous key can be used to find the similarity.

What is a specimen?

A specimen can be anything that is displayed regarding the subject. In labs the specimens can be chemicals, animals, plants, any objects, etc.

Specimens are displayed to learn about them, to see the actual version of that animal that can not be seen easily.

Thus, Because no specimen is provided, let's take animals as an example, the presence of cells is a trait that all specimens share. To find the similarity, a dichotomous key might be utilized.

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Identify the graph that matches each of the
following stories:
a. I had just left home when I realized I had forgotten my books so I went back to pick them up.
b. Things went fine until I had a flat tire.
c.I started out calmly, but sped up when I realized I was going to be late.

Answers

Answer:

A. 4, B. 2, C. 1

Explanation:

Other Questions
DNA Is made up of series of boned together. These subunits are made of three separate parts: a base, a sugar, and a phosphate group. What are the subunits called?A. Nucleic acids B. NucleotidesC. DeoxyriboseD. Cytosine Soft Lumber has bonds, preferred stock and common stock as its capital components. _____________ is the right most apt to be granted to its preferred shareholders. A driver traveling the speed limit in the evening on a quiet country road rounded a curve and struck a bicyclist who was riding in the same lane. The driver stopped the car and inspected the bicyclist, who had a broken leg. The driver thought it best not to try to move the bicyclist, so he told him that he would go to get help. The driver drove away and left the bicyclist by the side of the road. After the driver had left the scene, he realized that he had forgotten his wife's birthday, so he stopped to buy a gift and hurried home. He did not remember the bicyclist until a few hours later, but assumed that by that time someone would have come along to render assistance. However, the bicyclist was not rescued until the following morning. By then, he had contracted pneumonia as a result of exposure. The bicyclist sued the driver to recover damages for his broken leg and the pneumonia. If the jury finds that the driver was not negligent in his operation of his automobile, for what harm will the bicyclist most likely recover Write a program that will generate a personalized invitation within a text file for each guest in the guest list file using the event information found in the event details file. Put all the generated invitation files in a directory called invitations. Ensure that the name of each invitation file uniquely identifies each guest's invitation When you evaluate the use of digital media, how has it affected the newspaper business? The rise of digital media has caused newspaper subscriptions to decline significantly because people are finding their news online. The rise of digital media has had no measurable effect on newspaper subscriptions. The rise of digital media has caused newspaper subscriptions to increase because it has inspired people to care more about news. The rise of digital media has caused newspaper subscriptions to fluctuate depending on the time of year. Need help please!(5^3)^6 please help with the attached picture question 21, 22, 23 Anyone knows the answer? Why did the author of "Make Your Own Microscope" write this piece? To inform readers about the history of smartphone microscopes to teach readers how to make their own smartphone microscopes to entertain readers with a fun story about creating a smartphone microscope to share with readers her views about smartphone microscopes 10 ft wide by 14 ft long. if the ceiling is 8 ft high. what is the area of the four walls? Abraham is writing a recursive function for the geometric sequence:24, 12, 6, 3, Khan Academy Problem PLEASE HELP Find the cost of 5 m of cloth at rupees 42 per metere Which of the following is thecompound of the chemicalformula NO?A. NitrateB. Nitrogen gasC. Ammonia can you help me with these high rated questionsI wish you will help me with his highlighted questions What do the travel agent The following pairs of soluble solutions can be mixed. In some cases, this leads to the formation of an insoluble precipitate. Decide, in each case, whether or not an insoluble precipitate is formed.a. K2S and NH4Clb. CaCl2 and NH4CO3c. Li2S and MnBr2d. Ba(NO3)2 and Ag2SO4e. RbCO3 and NaCl helppp ..................... If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental frequency in the ripple will beHz 50Hz 70.7Hz 100Hz 25 There are two 5s in the number 855,309. Ricosays that the 5 in the ten-thousinds place is 1000times greater than the 5 to its right. Is she correct?Explain howyou know Para que es el telescopio j