Answer:
Over time, a hypothesis that is supported by many experiments and much data becomes a theory.
1.
What is the difference between an independent and dependent variable?
Answer: An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.
Explanation:
Compare your observations of micrographs obtained from the optical microscope, the scanning electron microscope, and the transmission electron microscope
Answer:
Transmission electron microscope is the best one due to high magnification power.
Explanation:
Micrographs or photograph obtained from the optical microscope is not very clear because it has the magnification power up to 1000x while the scanning electron microscope has magnification power 30000x which is quiet higher than optical microscope so the micrographs is better than optical microscope and gives more information about the specimen, and the transmission electron microscope has the magnification power up to 500000x which has the highest of magnification so the micrographs obtained from this microscope is the best due to more information about the size and structure of the specimen.
What are carbohydrates the source of for us?
Answer:
carbohydrates are Sources of energy
Answer:For humans, we consume carbohydrates in the form of sugars, starches, and fibers found mostly in plant-based foods, such as grains and fruits, but also in dairy products.
Explanation:Carbohydrates, or carbs, are sugar molecules. Along with proteins and fats, carbohydrates are one of three main nutrients found in foods and drinks. Your body breaks down carbohydrates into glucose. Glucose, or blood sugar, is the main source of energy for your body's cells, tissues, and organs
A (____) is a statement saying that what is presented is true.
Answer:
A ‘receipt’ is a statement saying that what is presented is true
Explanation:
Hope this helps!（づ￣3￣）づ╭❤～
answer: a receipt is a statement saying that what is presented is true
Where should the biosphere label appear in the systems model? Use reasoning to explain your answer.
Answer:
Explanation:
Biosphere is the portions/regions of the earth (including land, sea and atmosphere) where living organisms exist. From the picture attached, it can be seen that there are living organisms in the hydrosphere (fishes), geosphere (plants) and anthrosphere (human). The entire system should have been labelled biosphere and not atmosphere.
NOTE: Atmosphere is an empty air space surrounding/around the earth (or other celestial body).
What do most living things use carbohydrates for?
Answer:
see below
Explanation:
They are used as fuels to provide the energy for human beings bodies. Cellulose, which makes up the walls of plant cells, is a carbohydrate.
What is one question you have about the study of life? Remember that a good scientific question is concise, clear, and verifiable by experiment.
Answer:
Explanation:
Biology can be referred to as the study of life.
One question that can be asked about the study of life is "if green plants excrete". Since excretion is one of the characteristics of living things, one question that could be intriguing is the possibility of plants performing this process.
This question can only be answered be answered/verified by a scientific experiment because the process cannot be observed/determined with the naked eye.
You water three sunflower plants with salt water. Each plant receives a different concentration of salt solutions. A fourth plant receives pure water. After a two-week period, the height is measured. Item at position 5 5 6 points The C.G. (control group) is
Answer:
The fourth plant that receives pure water is the control group.
Explanation:
The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study, in this case, the different concentrations of salty water that each plant receives. The control group provides a reference point. It must be selected from the same population of the treatment groups. Both groups must be similar in every variable that might influence the results, except for the study treatment.
A bacterium was found to contain a sequence of ATCGGGATCCT in its genome. A few generations later, the sequence was found to be ATCGGGGGGATCCT. What type of mutation caused this change in the bacteria?
Answer:
This question lacks options, the options are:
A) Deletion
B) Duplication
C) Inversion
D) Insertion
The correct answer is Insertion mutation
Explanation:
Mutation refers to changes that occur to the nucleotide sequence of a gene or DNA. Mutation produces different effect in the mutated organism and is classified based on how it occurs. Mutations can be deletion, insertion, duplication, inversion etc.
Based on the description of the mutation that occured to the bacterium sequence, it is an INSERTION MUTATION. An insertion mutation is a kind of mutation in which extra nucleotide bases are added to the original sequence. This is the case of this bacteria sequence, which was previously found to contain: ATCGGGATCCT.
After few generations, nucleotide bases "GGG" i.e three Guanine bases has been added to the sequence to give a mutated sequence: ATCGGGGGGATCCT.
Answer:
Duplication
Explanation:
1. Ms. Wagner loves to eat tomatoes. She wants to plant a garden and is trying to figure out how to grow plants
with more tomatoes. She plants three identical pots of tomato plants and gives them different amounts of
fertilizer. She keeps everything else the same (the amount of water, the amount of soil, amount of sun the plants
get). For one month, she records how many tomatoes each plant produces.
Independent and dependent variables
Answer:
Independent variable: The amount of fertilizer.
Dependent Variable : The amount of water, the amount of soil. amount of sun light.
Explanation:
I can't really explain it but I am pretty sure that is the right answer. Hope it helps :)
Independent variable: The amount of fertilizer and Dependent Variable : The amount of water, the amount of soil.
What are dependent variable?In an experimental study, an independent variable is one that you change or alter to examine its effects. It is named "independent" because it is unaffected by any other study variables.
Other names for independent variables include: determinant variables (they can be used to predict the value of a dependent variable). Right-side parameters (they appear on the right-hand side of a regression equation).
These phrases are particularly useful in statistics, where you evaluate how well a change in one independent variable can account for or anticipate changes in another.
Therefore, Independent variable: The amount of fertilizer and Dependent Variable : The amount of water, the amount of soil.
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if you were 6’6 1/2 tall, about how many meters tall would you be
Answer:
1.99metres
Explanation:
Foot and inches are measurements of heights. A height measurement of 6’6 1/2" means I am 6 foot and 6.5 inches tall.
Firstly, we need to convert the foot and inches measurement to all foot.
Since 1 foot = 12 inches
Then, the 6.5 inches is 6.5/12
= 0.5416foot
We add this to the existing feet measurement, i.e. 6 foot + 0.5416 foot
= 6.5416 foot.
Hence, 6'6.5" means 6.5416'
Now, we convert the foot measurement to metres.
1 foot makes 30.48 cm
Since 100 cm makes 1 m
30.48 cm will be 30.48/100= 0.3048m
Hence, 1 foot = 0.3048m
6.5416 foot = 6.5416 × 0.3048 m
= 1.9938
Therefore, a height measurement of 6’6 1/2" is 1.99 metres tall.
Which of the following describes the relationship between population and species?
a
A species consists of all individuals of all populations in one area.
A species consists of all Individuals of one population in one area.
Ob
Ос
A population consists of all individuals of one species in one area.
A population consists of all individuals of all species in one area.
Answer:
A population consists of all individuals of all species in one area
A population consists of all individuals of all species in one area.
Population:A population is where all living organisms are living. It has a different types of species in one area. It is affected by many factors:
Birth rateDeath rateImmigrationEmigrationSpecies are group of organisms that share genetic heritage. They are the fundamental units of biological classification. Species are combined to form a genus. A group of genus comprises to form family. A group of family forms order.
Species are group of interbreeding populations which are reproductively isolated from each other. Two animals are not the same species if they cannot mate and reproduce a living fertile baby.
Therefore, A population consists of all individuals of all species in one area. Option D is correct answer.
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Which statement correctly compares the "Analysis" and "Conclusion" sections of a lab report?
O Only the "Conclusion" section describes errors that occurred during the experiment, and only the "Analysis"
section suggests further research.
O Only the "Analysis" section includes specific data comparisons, and only the "Conclusion" section suggests further
research
O Only the "Analysis" section discusses whether the original hypothesis was supported, and both sections include
graphs of data.
O Only the "Conclusion" section discusses whether the original hypothesis was supported, and both sections
suggest further research,
Answer: B: Only the “Analysis” section includes specific data comparisons, and only the “Conclusion” section suggests further research.
Explanation:
What conclusion can be made if a positive test was the result for any of the organic molecules for the water sample? This a question from a assignment that has to do with a lab we did today.
Answer:
Because some effects will occur.
Explanation:
The positive test which was the result for the organic molecules for the water sample showed that there is some change occurs in water sample by adding of organic molecules due to which the results of the test comes positive. If there is no change occurs in the water sample by adding some organic molecules so the results will come negative which means no effect.
Sonographic findings of severe micromelia, decreased or absent ossification of the spine, macrocephaly, and micrognathia describe which one of the following conditions?
a. Achondrogenesis
b. Achondroplasia
c. Osteogenesis imperfecta
d. Diastrophic dysplasia
Answer: Option A.
Achondrogenesis
Explanation:
Sonographic findings of severe micromelia, decreased or absent ossification of the spine, macrocephaly, and micrognathia are conditions of Achondrogenesis because
Achondrogenesis is a genetic disorder that is as a result of mutations in gene SLC26A2 which is responsible for cellular transport proteins that is needed for the growth and development of bones and cartilage. This condition lead to malformation of bones and cartilage and it is characterized by short limbs, small body, narrow chest ,prominent abdomen,underdeveloped lungs,lack of ossification in the spine and pelvis, prominent head, small chin e.t.c.
It is a condition that affects infants.
The major treatment is pallative care in which the doctor have to reduce pain stress of bones and cartilage and also genetic councellling.
The information above shows that silicon has both beneficial and detrimental effects on the human body. Given this information, think about other examples of materials or substances that can be both beneficial and detrimental at the same time. Research and write about two examples. Be sure to provide evidence to support your point of view.
Answer:
1. Iron (ferrous)
2. Zinc
Explanation:
Iron is a major component of hemoglobin which is responsible for the transportation of oxygen from lungs to all cells of the body, while excess iron has also negative effects on our body such as it causes liver disease (cirrhosis, cancer), heart attack, diabetes and sometimes it causes death. Zinc also plays a vital role in our body because it is a main component of all cells and also provide protection against microbes. It also needed for the production of DNA and protein. Zinc in excess amount causes copper deficiency, Nausea Stomach Pain and Diarrhea.
According to Darwin's theory of evolution, which organisms are BEST able to survive in nature? A) those with the best camouflage and coloration B) organisms that possess the greatest number of mutations Eliminate C) those that possess characteristics acquired during their lifetime D) organisms that possess overall characteristics best suited to their environment
Answer:
I think its D...
Explanation:
If I'm correct, the organisms characteristics that suit its habitat will give it a better and bigger chance for survival.
I'm not sure if I'm correct though..
But anyways hope I helped! :D
What are the reactants for cellular respiration? (1 point)
H20 and 2
Glucose and CO2
H20 and CO2
Glucose and O2
Organisms can be made up of many _____________, which could be arranged into ________________, which can make up ____________________, organs can be part of an _______________ _____________________. These are __________________ ___________ ___ _______________________.
Please help!!!
Organisms can be made up of many cells, which could be arranged into tissues which can make up organs, organs can be part of a(n) system. These are........i don't really know after this since you didn't give a lot to work with and i'm not even sure if this is right or not lol.
Organisms can be made up of many cells, which could be arranged into tissues, which can make up organs, organs can be part of an organ system. These are parts of the body.
Organisms can be unicellular (e.g., bacteria and protists) or multicellular (e.g., fungi, plants and animals).In multicellular organisms, cells are organized into tissues (e.g., connective tissue) that play specialized functions.In turn, two or more tissues can be organized to form organs (e.g., liver, kidney) that perform specific functions for the body. Finally, organs are arranged into systems that work together to carry out a particular function for the body. For example, the urinary system is responsible for cleaning and filtering the blood of waste products.The organ systems include the cardiovascular system, respiratory system, digestive system, nervous system, endocrine system, integumentary system, skeletal system, muscular system, lymphatic system, urinary system, and reproductive system.In conclusion, the correct levels of organization (from smallest to largest) are cells >> tissues >> organs >> organ system.
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You are going to dissect a frog and examine its inner anatomy. a. What are five pieces of lab equipment that you would use and what you would use each tool to do?
Answer:
The five piece of lab equipment that we will use are
1. Preserved frog specimen
They are safe to use and are not subject to hazardous materials regulations or disposal restrictions.
2. Dissection tray
They are essential when analyzing internal structures and component related functions. Compatible with lining waxes used to provide unadulterated dissecting pin surfaces or including odor absorbent pads, pans allow animals to be securely held in place.
3. Scalpel
They are used to make cuts into the body. This is a very sharp instrument and comes in various sizes for different types of cuts and surgeries. Most blades are made of either carbon or stainless steel.
4. Dissecting scissors
They are used for fine dessection ,making incisions, cutting apart tissues and removing different organs.
5. Forceps
They are used to handle tissues and other materials and also to manipulate needles and other instruments whilst operating. They are commonly used for grasping fine tissue and blood vessels or soft tissue dissection.
Please mark me as Brainliest5. What are the four bases found in DNA? *
O A, T, C, and G
O A, U, C, and G
O A, T,&T
OY, 0, L, and o
A, C, G, T attached to each sugar is one of the 4 bases
Answer:
aa
Explanation:
I did decide whether the changes to the ecosystem are more likely to increase or decrease the population of raccoons
Answer:
?
Explanation:
Answer:
It depends on how the change is going to happen.
Explanation:
If the food/animal that the raccoon eats increases then the raccoons increase.
but if the animal/food decreases then the raccoons decrease.
What type of cell is this
Answer:
prokaryotic cells do not have a nucleus or membrane bound organelles.They also have small rings of double-stranded extra-chromosomal DNA called plasmids.
Compare and contrast the function of organelles
Answer:
chloroplast make a food for plant while mitochondria make glucose (sugar)Hope this helps :)why can we use pulse rate to see the rate of cellular respiration
Answer:
Several changes take place in the body to enable this: the breathing rate and volume of each breath increases to bring more oxygen into the body and remove the carbon dioxide produced. the heart rate increases, to supply the muscles with extra oxygen and remove the carbon dioxide produced.
Explanation:
Lipids commonly contain fatty acids. What are the two parts of a fatty acid? Check the correct answers below
Answer: b) long chain of carbon and hydrogen
c) carboxyl group
Explanation:
PLEASE HELP John had a science fair project that he needed to do. He wanted to test the effects that organic and chemical fertilizers had on plant growth. John predicted that the organic fertilizer would make the plants grow taller. He used three pots, three of the same type of seed, soil, organic fertilizer, chemical fertilizer, water, and a ruler. John put soil in the pots. He added chemical fertilizer to the first pot, organic fertilizer in the second pot, and no fertilizer in the third pot. He then planted one seed in each pot. John had to water the pots daily. He also checked for growth and took measurements for a period of 10 days. He measured the height of the plants. Height of Plant Days No Fertilizer (cm) Chemical Fertilizer (cm) Organic Fertilizer (cm) 1 0 0 0 2 0 0 0 3 0 0 0 4 0 0 0 5 0 0.5 0 6 0 1.3 0 7 0 1.9 0.3 8 0 2.2 1.6 9 0 4.5 3.2 10 0.2 5.2 3.8 As a real-world application, how can this experiment be beneficial?
Answer:
As a real world application, this can be beneficial in the process in which a farmer would grow their plants. If they would the process that provided the healthiest, biggest plants, they would choose that to fertilize with.
Explanation:
The benefit of this experiment is that it would help those into farming to know the best types of fertilizer to use that would to help grow their crops more.
This answer can be seen in the purpose of the experiment that he is carrying out. He is trying to see the effect of different fertilizer types on the growth of plants.
He used the Organic and the chemical fertilizers to grow the plants in different pots.
The plant that grows bigger is the plant that has the most effective fertilizer for growth.
In conclusion, The result of this experiment would be helpful in determining the best fertilizers that support the growth of plants.
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Which of the following is the best representation of a solid?
Answer:
its the one that looks like a cube
Explanation:
Fill in the blank: The ability of a group of organisms to change, or ______
time helps populations survive in an ever-changing environment. *
A. Homeostasis
B. Metabolism
C. Stimulus
D. Evolve
The ability of a group of organisms to change, or ___Stimulus___
time helps populations survive in an ever-changing environment.
A stimulus is a detectable change in the physical or chemical structure of an organism's internal or external environment.
Scientific Question: What is the effect of major flooding events on adult and juvenile trout
populations in Mack Creek?
Answer:
The population decreases.
Explanation:
Flood has a very adverse effect on the population of both adult and juvenile trout that lives in the streams because the trouts which has less than one year age are not good swimmers so they can't with stand with the fast flow of water during flood condition so the population of both adult and juvenile trout decreases in that stream in which flood occurs.