15points+brainliest!!! please help it’s due tonight :(!!!
Answer:
Hypothesis: If the fish which eats food exposed to microwaves, then the fish will become smarter and be able to swim faster.
Control group: the fish, the maze
independent group: the type of food which is being given
Dependent group: the time the fish is able to swim through the maze
Conclusion: Although the results did show that both fishes had some difference between their before and after, you can see a greater difference of time in the group of fishes which had ate the special food.
Hope this helps.
2. Four students raced toy cars on a track. The mass and the acceleration of each car is
recorded in the table below.
Toy Cars
Toy Car
Mass (kg)
Acceleration (m/s)
1
0.19
0.15
2
2.0
3.0
1.5
3
0.25
0.21
4
2.5
Which toy car had the greatest applied force?
A 1
B 2.
с 3
D4
Answer:
the answer is 4
Explanation:
i dont know how to explain it but i took the test and it was right.
The car with the greatest applied force is : ( D ) Car 4
Given that :
Force applied is calculated as : Mass * acceleration
Calculating the force applied on each carFor Toy car 1
mass = 0.19
acceleration = 0.15
Force = 0.19 * 0.15 = 0.0285 N
For Toy car 2
mass = 2.0
acceleration = 1.5
Force = 2 * 1.5 = 3 N
For Toy car 3
mass = 0.25
acceleration = 0.21
Force = 0.25 * 0.21 = 0.0525 N
For Toy car 4
mass = 2.5
acceleration = 3
Force = 2.5 * 3 = 7.5 N
From the answers above the car with the greatest applied force is car 4 with a force of 7.5 N
Hence we can conclude that The car with the greatest applied force is : ( D ) Car 4
Learn more about applied force : https://brainly.com/question/25545050
Which method of communication provides the fastest feedback for a researcher?
HELP ME!!
What is cancer?
addition of new cells to replace damaged cells
DNA replication
cellular death
uncontrolled cell division
Answer: uncontrolled cell division
Explanation: uncontrolled cell division forms a cancer turmor which can kill.
What are three examples of carbohydrates?
Answer:
Glucose, Galactose, Malatose
Explanation:
2.Which of these best describes an organism's ability to maintain the
constant internal conditions necessary for life?
A. Homeostasis
B. Adaptation
C. Stability
D. Reproduction
Answer:a
Explanation:
BRAINLIEST!! Are Zebras mammals?
Answer:
yehee boi
Explanation:
it is a warm blooded vertebrate
Answer:
A zebra is a mammal. Zebras share the genus with horses. With their distinctive black-and-white stripes, zebras are among the most recognizable mammals.
How did endosymbiosis impact the structural differences between bacteria, animals, plants and fungi?
Answer:DNA, RNA, Ribosomes and Protein Synthesis
This provided the first substantial evidence for the endosymbiosis hypothesis. It was also determined that mitochondria and chloroplasts divide independently of the cell they live in.
Explanation:
What role did endosymbiosis play in the evolution of eukaryotes? Endosymbiosis led to the evolution of eukaryotic cells with mitochondria and chloroplasts. This kind of natural selection led to the evolution of eukaryotic cells and the plants and animals we see today.
Most fad diets focus on restricting certain types of food and nutrients. What do you think would happen if someone ate an extremely low-protein diet without the approval of a doctor? What side effects might the person experience?
Answer:
Eating a diet of low levels of protein could leave you to development a condition called edema, which causes swelling in your legs and feet from the buildup of fluids. Protein plays an essential role in maintaining salt and water inside your blood vessels and ensuring fluid does it make its way into the tissues. Hajima can cause stiffness, difficulty walking, increasingly painful swelling.
Explanation:
Answer:
Here’s one possible answer:
Protein builds and repairs body tissues. So, a person who eats a low-protein diet might experience symptoms such as slow wound healing. This person might also start losing muscle mass because the body uses skeletal muscle to make protein when needed.
Explanation:
How much des temperature increase for every 25
kilometers down into the Earth?
Answer:
The temperature goes up to 625°C every 25 kilometers.
Explanation:
For every kilometer the temperature rises 25°C
What is the effect of the biogeochemical cycles
Answer:
the answer is B for those looking.
What is the relationship between the geographic location and genes of lion prides in Africa?
Answer:
well all loins i think live in sub-Saharan Africa well currently lions live in Asia and Africa
hope this helps also i like your profile pic ヾ(≧▽≦*)o
What is energy and how does it change from one form to another? (Give an example)
Answer:
Energy is a property of matter. example what we eat has energy. Apples have energy.
Explanation:
Which describes the correct procedure when converting a number from scientific notation to standard notation if the power of 10 is -10
A). Move the decimal point to the left
B). Move the decimal point to the right
C). Add 20 to the number
D). Subtract 20 from the number
Answer: The answer is B.
Answer:
The answer is B
Explanation:
I took it on EDGE and got it right
Hope this helps!!!
what happens if you eat to much food
Answer:
You chunk it up.
Explanation:
Answer
Throw up
Explanation:
Ur stomach will not feel good so you will most likely throw up.
help me please, i just need to know the answer
Answer:
The answer is D...........
Which of the following is(are) true about ribosomes? Select all that apply. They are found free floating in the cytoplasm. They are the site of production of carbohydrates. They are found on the surface of the smooth endoplasmic reticulum. They are the site of protein synthesis.
They are found free floating in the cytoplasm & They are the site of protein synthesis
Many cells make and use an enzyme, called catalase, to facilitate the decomposition of hydrogen peroxide (H2O2). The products of the decomposition are hydrogen (H2) and oxygen (O2).
Which of these changes to the cell would cause the greatest reduction in the activity of catalase?
A)
a decrease in the concentration of hydrogen and oxygen
B)
an increase in the concentration of hydrogen peroxide
C)
an increase or decrease in pH beyond normal range
D)
a return of pH to the normal range
Answer:
B an increase in the concentration of hydrogen peroxide.
Explanation:
Which role of bacteria is the most beneficial in terms of maintaining the health of the plant populations in our ecosystems?
Bacteria serving as a major food source for secondary consumers.
Bacteria aiding in digestion in the intestines of animals.
Bacteria producing oxygen for the oxygenation of the earth's atmosphere.
Bacteria decomposing dead materials which returns nutrients to the soil.
Answer: Bacteria producing oxygen for the oxygenation of the earth's atmosphere.
Explanation: ????????? NOT FOR SURE
CAN SOMEONE HELP PLEASE
Examples of carbohydrates are?
Answer:
Sugar, starch, and gluclose.
Explanation:
A student wants to test the effect of different amounts of caffeine on the heart rate of dogs. Describe the experimental groups in this experiment. What is the dependent variable? type of dogs amount of caffeine the heart rate number of dogs
Answer:
Experimental groups: type of dogs
Dependent variable: hearth rate
Independent variable: the amount of caffeine
Explanation:
The dependent variable is the variable being measured or tested in a given study, while the independent variable isn't changed by the other variables. In this case, the heart rate is dependent on the amount of caffeine, which is then the independent variable. The experimental groups are the groups exposed to the independent variable.
Scientific knowledge is based on all of these except
A)
rigorous testing
B)
small sample sizes.
publication and peer review
D)
acceptance in the scientific community
Answer:
B) small sample sizes
Explanation:
I did it on usa test prep and got it right
Answer:
B
Explanation:
Small sample sizes
what's an accumulation of cells that all possess the same function
Answer: tissue
Explanation:
A collection of cells that function together to perform the same activity is known as tissue. Masses of tissue work collectively to form an organ that performs specific functions in the body. Despite this structural organization, all activity boils down to the cell – a complex unit that makes life possible. Parts of the Human Cell
A diseased cell is no longer able to produce proteins. Which cell structure is most likely malfunctioning?
Answer:
Ribosome structure
Explanation:
Answer:
THE RIBOSOMAL RIBONUCLEIC ACID WILL MALFUNCTION
Explanation:
THE rRNA IS WHAT PODUCES THE PRITEINS
Part A: List the 9 characteristics of life.
Part B: Choose 3 of the characteristics of life above. Give an example of each that describes how that characteristic contributes to the organism's survival.
Answer:growth excretion, responsiveness, movement ,reproduction, growth i got six sorry i can't remember
Explanation:
Explain- the 8 characteristics that are required for life
Answer:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these eight characteristics serve to define life.
Explanation:
Sensitivity or Response to Stimuli
Organisms can respond to diverse stimuli. For example, plants can grow toward a source of light, climb on fences and walls, or respond to touch. Even tiny bacteria can move toward or away from chemicals (a process called chemotaxis) or light (phototaxis). Movement toward a stimulus is considered a positive response, while movement away from a stimulus is considered a negative response.
Reproduction
Single-celled organisms reproduce by first duplicating their DNA. They then divide it equally as the cell prepares to divide to form two new cells. Multicellular organisms often produce specialized reproductive germline cells that will form new individuals. When reproduction occurs, genes containing DNA are passed along to an organism’s offspring. These genes ensure that the offspring will belong to the same species and will have similar characteristics, such as size and shape.
Growth and Development
All organisms grow and develop following specific instructions coded for by their genes. These genes provide instructions that will direct cellular growth and development, ensuring that a species’ young will grow up to exhibit many of the same characteristics as its parents.
Regulation
Even the smallest organisms are complex and require multiple regulatory mechanisms to coordinate internal functions, respond to stimuli, and cope with environmental stresses. Two examples of internal functions regulated in an organism are nutrient transport and blood flow. Organs (groups of tissues working together) perform specific functions, such as carrying oxygen throughout the body, removing wastes, delivering nutrients to every cell, and cooling the body.
Homeostasis
In order to function properly, cells need to have appropriate conditions such as proper temperature, pH, and appropriate concentration of diverse chemicals. These conditions may, however, change from one moment to the next. Organisms are able to maintain internal conditions within a narrow range almost constantly, despite environmental changes, through homeostasis (literally, “steady state”)—the ability of an organism to maintain constant internal conditions. For example, an organism needs to regulate body temperature through a process known as thermoregulation. Organisms that live in cold climates, such as the polar bear, have body structures that help them withstand low temperatures and conserve body heat. Structures that aid in this type of insulation include fur, feathers, blubber, and fat. In hot climates, organisms have methods (such as perspiration in humans or panting in dogs) that help them to shed excess body heat.
Energy Processing
All organisms use a source of energy for their metabolic activities. Some organisms capture energy from the sun and convert it into chemical energy in food; others use chemical energy in molecules they take in as food.
Evolution
As a population of organisms interacts with the environment, individuals with traits that contribute to reproduction and survival in that particular environment will leave more offspring. Over time those advantageous traits (called adaptations ) will become more common in the population. This process, change over time, is called evolution, and it is one of the processes that explain the diverse species seen in biology. Adaptations help organisms survive in their ecological niches, and adaptive traits may be structural, behavioral, or physiological; as such, adaptations frequently involve other properties of organisms such as homeostasis, reproduction, and growth and development.
HURRY! Michael decides to bake bread one morning. He measures ingredients, mixes them together to make a dough, and cooks the dough in an oven. As the dough cook's, Michael observes the bread rising. Which of the following is evidence of the chemical change in Michael’s bread-making process?
Answer:
The bread rising as carbon dioxide is released.
Explanation:
Just did it
The trapped carbon dioxide causes the dough to rise, evidence of a chemical change in Michael's bread-making process.
What is Fermentation?Fermentation is defined as a metabolic process that produces chemical changes in organic substrates through the action of enzymes which is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen.
Microorganisms such as bacteria and fungi have metabolic genes that allow them to produce enzymes to break down a variety of sugar metabolites.
Yeast and sugar produce carbonic gas through fermentation which is why as the yeast consumes the sugar, it produces alcohol (ethanol) and carbonic gas (carbon dioxide) as waste products, hence the carbon dioxide trapped in the dough lifts up,
Thus, the trapped carbon dioxide causes the dough to rise, evidence of a chemical change in Michael's bread-making process.
Learn more about fermentation, here:
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True or false? Objects in the universe are slowly moving apart as the universe
changes over time.
True
False
Answer:
True
Explanation:
The expanding universe theory was developed from the observed redshifts of celestial bodies, that the space between galaxies is expanding so that they appear to recede from us at velocities that increase with their distance
A group of students is setting up a test to see whether earthworms prefer rough or smooth surfaces which type of investigation is the group doing A.Comparative B. Descriptive. C. Controlled. D. Experimental
Answer: The answer is A. Comparative
Explanation: The photo shows two different types of soil with the same type of worm. Therefore this it a comparative experiment. Trust me I got this question correct.
Answer:
its actually experimental, i put in comparative and it was wrong
Explanation: