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(I) predict which of the liquids would cause the largest decrease in made of a potato stick.
(ii) The students dried the potato sticks with paper towels before putting them on the electronic balance
Suggest why.
Answers
Explanation:
(l) 0.1 mol per dm3 sodium chloride solution can cause the largest decrease in the potato stick
Related Questions
After running 45 meters, how far is she from the beginning of the track
Answers
Answer:, she will be on the 55-meter as the sum of 10 and 45 is 55
Explanation:Therefore, her distance from the beginning of the track will be 55 - 0 = 55
WILL GIVE BRAINLIEST TO WHOEVER CAN EXPLAIN:
True or False-in scientific notation when you move the decimal point left is it positive.
Answers
Answer:
Explanation:
value of the exponent. - If you moved the decimal point to the left, make the exponent positive. - If you moved the decimal point to the right, make the exponent negative.
Answer:
If the given number is multiples of 10 then the decimal point has to move to the left, and the power of 10 will be positive. Example: 6000 = 6 × 10 3 is in scientific notation. If the given number is smaller than 1, then the decimal point has to move to the right, so the power of 10 will be negative.
Explanation:
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Fun Fact: The longest English word is 189,819 letters long
The liquid on the left naturally forms rounder drops than the liquid on the right. Which phrase describes the difference between these two liquids?
A. Patterned particle arrangement versus disorganized particle arrangement
B. High surface tension versus low surface tension
C. Fixed shape versus changing shape
D. Fixed volume versus changing volume
Answers
Answer:
D. high surface tension versus low surface tension
Explanation:
Mendel bred a purple-flowered pea plant with a white-flowered pea plant and found that all the offspring had purple flowers. But then when he bred together two of the purple-flowered offspring, some of their offspring had white flowers. Using the concepts of dominant and recessive alleles, explain how the trait of white flowers skipped a generation.
Answers
Purple gene(which occurs in pairs of PP which are both dominant alleles) crossed with a recessive pp(white flowered) after crossing, all the offspring had Pp. Purple being dominant suppressed the white(p).
after crossing the offspring, (Pp and Pp) a quarter the offspring lacked the dominant allele P hence allowing the recessive colour white to be shown.
Which of the following is not a testable hypothesis that this data could be used to support or disprove?
Answers
Answer:
b
Explanation:
this is because babies needs certain nutrient to grow faster which includes tallness
The statement that is not a testable hypothesis based on the given data is: being taller is always better than being shorter. Therefore option A is correct.
The given data provides information about the average height of females and males in different age groups. Let's analyze each statement to determine whether it is a testable hypothesis or not:
A. All men who are married are taller than their wives.
This statement cannot be tested using the given data because it only provides average heights for different age groups, but it doesn't provide any information about marital status or the specific heights of individual men and women.
Therefore, we cannot determine whether all married men are taller than their wives based on this data.
B. Height is affected by childhood nutrition.
This statement can be tested using the given data. By examining the average height changes across different age groups, we can infer whether childhood nutrition has an impact on height.
If there is a noticeable trend of increasing height from birth to older age groups, it could suggest a correlation between childhood nutrition and height.
C. Being taller is always better than being shorter.
This statement is subjective and cannot be tested using the given data. It is a matter of personal opinion and values, rather than something that can be objectively measured or proven.
D. All females are taller than males at age 12.
This statement can be tested using the given data. By looking at the average heights of females and males at age 12, we can determine whether females are, on average, taller than males at that specific age.
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Which part of the integumentary system is also part of the exocrine system?
A. Keratinocytes
B. Sweat glands
C. Hair follicles
D. Epithelium
Answers
Answer:
Sweat glands (B) is the answer.
How do red blood cells help animals?
Answers
Answer:
The function of RBCs is to carry oxygen to the tissues at pressures sufficient to permit its rapid diffusion. Explanation:
Answer:to carry oxygen from lungs to tissues
Explanation:they contain haemoglobin, which has Fe that binds to the oxygen to be carried
tudents put the same type of bacteria in 15 Petri dishes. Antibiotic A was applied to 5 dishes, Antibiotic B was applied to 5 dishes and Antibiotic C was applied to 5 dishes. At the end of 2 weeks, the number of bacteria colonies were counted. What is the independent variable?
Answers
Answer:
The type of Antibiotic.
Explanation:
The independent variable is the variable that is changed in an experiment.
In this case, there are different types of antibiotics in this experiment.
What do arches and bacteria have in common ?
Answers
Answer:
-Bacteria contain fatty acids on the cell membrane, whereas archaea contain phytanyl. Explain the statement that both types, bacteria and archaea, have the same basic structures, but built from different chemical components. Both bacteria and archaea have cell membranes and they both contain a hydrophobic portion.
Explanation:
Archaea and bacteria are both prokaryotes, meaning they do not have a nucleus and lack membrane-bound organelles. ... Both archaea and bacteria have flagella, thread-like structures that allow organisms to move by propelling them through their environment.Bacteria contain fatty acids on the cell membrane, whereas archaea contain phytanyl. Explain the statement that both types, bacteria and archaea, have the same basic structures, but built from different chemical components. Both bacteria and archaea have cell membranes and they both contain a hydrophobic portion
what is Monosaccharide?
Answers
Answer:
A Monosaccharide is just the simplest form of sugar. It's general term applied to a sugar that cannot be broken down into anything 'simpler'. A great example of this is glucose. Glucose cannot be hydrolized to form anything else, but there are more complex forms of glucose like glycogen. Glycogen is basically a bunch of glucose molecules bonded together and used as "stored glucose", but glycogen can be hydrolized to form individual glucose molecules (monosaccharides).
describe the possible long term effects of HIV on the immune system
Answers
Explanation:
HIV attacks a specific type of immune system cell in the body. It's known as the CD4 helper cell or T cell. When HIV destroys this cell, it becomes harder for the body to fight off other infections. When HIV is left untreated, even a minor infection such as a cold can be much more severe.
Which describes a difference between solar wind and a geomagnetic storm? Select the three correct answers.
Answers
Answer:
Hope it may help you.
Explanation:
The intensity of solar wether changes frequently
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Help me. Which of the following describes the main role of the electron transport chain in cellular respiration? Picture below
Answers
Answer:
It produces molecules of ATP
Explanation
The electrons transfer their energy to the proteins in the membrane providing the energy for hydrogen ions to be pumped across the inner mitochondrial membrane.
Hope this helps you
Answer:
mark me as Brainlist.
Explanation:
A) it's produce molecules of ATP.
how the consumers in one level of the pyramid obtain energy from the organisms at the previous level of the pyramid
Answers
Answer:
by feeding on the organism on the previous level, the consumers at each level will receive energy. However, most of the energy is lost at each trophic level and very little gets transferred from one trophic level to another. Approximately, 10% of the energy is transferred from one trophic level to another.
Explanation:
hence, when a level takes energy from a previous level, the engery transfers but slowly gets less, so some levels get less energy depending on where the engery was located.
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5. Which cannot fix atmospheric nitrogen in the soil?
b) Clostridium c) Azotobacter
a) Rhizobium
d) Penicillin
Answers
Answer:
The atmospheric nitrogen cannot be taken directly by plants and animals. Certain bacteria and blue green algae present in the soil fix nitrogen from the atmosphere and convert into compounds of nitrogen.
hope it helped
you can only use each organ only once
Answers
Answer:
1)pancrease 2)rectum 3)salivary glands/liver
Explanation:
1)Lipase is an enzyme the body uses to break down fats in food so they can be absorbed in the intestines. Lipase is produced in the pancreas, mouth, and stomach.
2)Protease is present in gastric juice, stomach, intestine and digestive gland. Saliva and rectum contain traces of protease.
3)Physiology. Amylase is found in high concentration in the pancreas of virtually all animals. However, it is also found in the liver, salivary glands, and small intestinal mucosa of many species; the quantity of amylase in these organs varies considerably with different species
paises que han sido beneficiados por los animales llevados a esos ecosistemas
Answers
Answer:
realmente no se pero seguro lo buscas en gogle y sale perdon
What similarities, if any, do you think exist between a human’s reproductive cycle and the life cycle of a fern? What differences, if any, can you think of?
Answers
Answer:
The similarity between ferns and humans is that both go through meiosis and mitosis. But ferns are different because they have multicellular, free-living haploid and diploid forms. In humans, the haploid stage exists in the form of single cells—sperm and eggs. Only the diploid stage that begins with a zygote grows mitotically to form a multicellular, free-living human.
Explanation:
Humans and ferns are similar as both of these organisms fertilize to reproduce while differs in the haploid form of life which is present in the ferns and the male and female reproductive parts present in humans.
What is the life cycle of a fern?
The life cycle of fern includes the diploid fern which gives rise to the haploid spores that grows and form a gametophyte plant in which both the male and female reproductive systems are present. The male gamete undergoes fertilization with the female gamete to form a diploid spore (seed) which gives rise to the new fern plant.
Human’s reproductive cycle include diploid animals and the male and female genders which can be distinguished clearly. The male gamete-sperm fertilizes with the female gamete-egg to form the diploid zygote that gives rise to a new human.
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Prophage refers to: (please give right answer only)
Answers
Answer:
: an intracellular form of a bacteriophage in which it is harmless to the host, is usually integrated into the hereditary material of the host, and reproduces when the host does.
What can be observed on the empty plastic bag?
Answers
Open-pit mining creates a large hole in the ground after minerals are removed from the surface. Which statement best describes an environmental consequence of this process?
Heavy metals are released into surrounding soil, poisoning local vegetation.
High salinity of wastewater reduces soil fertility and growth of vegetation.
Billions of gallons of water are pulled from surrounding ecosystems.
Wastewater is contaminated with oil and becomes sludge in landfills.
Answers
Answer: (A) Heavy metals are released into surrounding soil, poisoning local vegetation.
Explanation: Open-pit mining falls under the surface mining category in the lesson 01.07 page 3/8 under the affects of surface mining the only one that is in the multiple choice questionnaire is "Heavy metals are released into surrounding soil". (don't know how much this helps since I'm 7 days late but hey this is a new curriculum and I've had trouble finding answers on brainy so why not contribute for once ¯\_(ツ)_/¯ )
The correct statement that best describes an environmental consequence of open-pit mining is that heavy metals are released into the surrounding soil, poisoning local vegetation.
The large hole left by open-pit mining becomes filled with water during heavy rains with heavy metals dissolving in the water to form solutions.These solutions percolate the surrounding soil and when they are taken up by the vegetation on the soil, the plants become poisoned by the heavy metals.In other words, the hole created by open-pit mining serves as an avenue for heavy metals to get into the surrounding soil and gets into the food chain through the plants.
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primary lysosome is formed from_____
Answers
Answer:
rough endoplasmic reticulumI hope it's helpsAnswer:
the Golgi apparatus (the squiggly boi part of a cell)
Whats the definition of perception
Answers
Answer: conocimiento
Explanation: Primer conocimiento de una cosa por medio de las impresiones que comunican los sentidos.
the ability to see, hear, or become aware of something through the senses.
"the normal limits to human perception"
the state of being or process of becoming aware of something through the senses.
How is WHAM related to Nucleic Acids?
Answers
Answer:
Nucleic acid is an important class of macromolecules found in all cells and viruses. ... Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.
Explanation:
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of it is the right answer
Answers
Answer:
Plants ; Autotrophic, Heterotrophic and Symbiotic
Heterotrophic : Insectivorous and Saprophytic
Animals; Holozoic, Saprozoic and Parasitic
Parasitic : Ectoparasitic and Endoparasitic
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Thank You
Answer:
__________................
PLS PLS. HELP
List the four main steps of celluler respiration.
Answers
Answer:
glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
Explanation:
You really need to know this in biology
Answer:
The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
Explanation:
hopes it help
How will a solution change if a base is added?
The hydroxide ion concentration will decrease and lower the pH.
The hydroxide ion concentration will decrease and raise the pH.
The hydrogen ion concentration will increase and lower the pH.
The hydroxide ion concentration will increase and raise the pH.
Answers
Answer:
As the concentration of hydrogen ions in a solution increase, the more acidic the solution becomes. As the level of hydroxide ions increases the more basic, or alkaline, the solution becomes. ... Thus, as the hydrogen ion concentration increases hydroxide ion concentration falls, and vice versa.
Thank you
What Organelles do plants cells have that animal cells do not? Why won't animal cells need these organelles? NO COPY AND PASTE!
Answers
Answer:
chlorophyll and cell walls
Explanation:
plants are producers that make there own food using the chlorophyll in there own cells there cell walls are there to help maintain the water in their cells animals on the other hand must consume food to acquire energy and they don't need cell walls to maintain cellular water because they get more water drinking
Why does a fish die when taken out of water ? Give suitable reasons .
Plz It is urgent . ( If you spam I will report )
Woohoo
Answers
Answer:
Fishes have gills that are special to breathe only under water when it is takes out of water it dies
Answer:
They suffocate to death.
Explanation:
A fish's gills are richly supplied with blood capillaries and can readily absorb the oxygen dissolved in water. Their gills are not designed to take oxygen from the atmosphere. So, they do not get enough oxygen and they suffocate to death.
On a graph, the vertical axis is
the y-axis and the horizontal
axis is the x-axis. Onəwhat axis
should the INDEPENDENT
VARIABLE be placed?
A
on the vertical or y-axis
B
on the horizontal or x-axis
Answers
Answer:
x-axis
Explanation:
you control those values/variables
On a cartesian plane, the independent variable belongs on the x-axis.
What are coordinates?A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.
The independent variable is the variable that is being manipulated or controlled in an experiment, and its values are typically plotted along the horizontal or x-axis.
The dependent variable, which is the variable being measured or observed in response to changes in the independent variable, is usually plotted on the vertical or y-axis.
This convention allows us to easily visualize and analyze the relationship between the two variables.
therefore, The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line). The x and y axes cross at a point referred to as the origin, where the coordinates are (0,0).
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