Answer:
When placed in water, hydrophobic molecules tend to form a ball or cluster. The hydrophilic regions of the phospholipids tend to form hydrogen bonds with water and other polar molecules on both the exterior and interior of the cell.
I WILL GIVE BRAINLIEST
(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.
Explanation:
(l) 0.1 mol per dm3 sodium chloride solution can cause the largest decrease in the potato stick
Describe three characteristics of enzymes
Answer:
1.They act as a catalyst
2.Enzymes are proteins
3.They are affected by Ph
4.They are affected by temperature
Explanation:
1.Enzymes act as a catalyst because they either speed up or slow down the rate of a reaction
2.They are proteins because they are made up of 20 amino acids
3.Enzymes are affected by temperature, if the temperature increases, the reaction rate increases. However if the temperature continues to increase, the shape of the active site changes.If the temperature is below preffered temperature range,the rate of the reaction becomes slower,but the shape is not denatured.
give one word for each of the following descriptions animals enter a state of rest during winter
Answer:
Hibernation
Explanation:
Hibernation is a way animals conserve energy to survive adverse weather conditions or lack of food.
write short notes on seed germination
Answer:
Sprouting
Explanation:
process of seed germination, water is absorbed by the embryo, which results in the rehydration and expansion of the cells.
hope this helps
how this ailments are detected prevented and treated???
Explanation:
Keep immunizations up to date.
Wash your hands often.
Prepare and handle food carefully.
Use antibiotics only for infections caused by bacteria.
Why are glands needed in the male reproductive system
Answer:
Because they are essential for physical and mental development of a body.
can someone help lollz.. I'll mark for most brainliest answer..
Answer:
freeb please lol
Explanation:
What is the purpose of inserting a target gene into bacteria?
A. To use it as a host to transfer it to human DNA.
B. To make them produce a specific protein or other product that can be used by humans.
c. To test the gene on a small scale before inserting it into an animal.
D. To make the bacteria resistant to injection by virus DNA.
Answer:
B
Explanation:
Bacterial transformation is a process where the plasmid a circular piece of dna is introduced to the bacterium. It is vital for bacterial transformation and selection for vaccine production purposes, protein production, and even insulin production.
Need some help figuring out what these are ASAP. Information is in the screenshots.
Answer:
it's SARS COV 2 the one in 2019
72 moths lived in a lab. Each week some moths died and about 1/3 survived . How many moths were still alive after 2 weeks
Answer:
The usage side of the equation matters. But as an international student whose family and loved ones have just gone through arguably the worse phase of the outbreak, I cannot stop but thinking about ways my home country could contribute. The collaboration and ties between the two countries run deeper, especially in trying times like this.
Some of my colleagues and I have been organizing at our school a small supply drive from our family and friends at home to our University hospital. But I have been wondering if a coordinated effort can be taken leveraging the presence....
Explanation:
Hope it will helps you
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1. Explain the relationship between monomes and polymer
Answer:
Monomers are small molecules, mostly organic, that can join with other similar molecules to form very large molecules, or polymers. ... Polymers are a class of synthetic substances composed of multiples of simpler units called monomers. Polymers are chains with an unspecified number of monomeric units.
please mark me brainliestA study showed that the photosynthesis rate of a plant continually increased
over a certain period. Then the rate leveled off. During the study, light inten-
sity and temperature remained constant. The only variable was the concentra-
tion of carbon dioxide surrounding the plant. What was the cause of this
variation in photosynthesis rate?
Plsss helppp
Answer:
The photosynthesis uses carbon dioxide to produces glucose, so the bigger is the concentration, faster the plant will uses it (but that rate have a limit, so it is valid until the limit is achieved, like was explained in the question).
The rate of photosynthesis will increase as you go from low light intensity to high light intensity because there is more light available to power the processes of photosynthesis.
What is the photosynthesis rate of a plant?The higher the concentration, the quicker the plant will utilize the carbon dioxide to make glucose. However, that rate has a limit, therefore it is only effective until that limit is reached.
Because an increase in carbon dioxide results in an increase in photosynthesis, carbon dioxide is the limiting factor at lower concentrations.
Therefore, this indicates that the plant is absorbing more carbon dioxide for photosynthesis, and there is a greater intake of carbon dioxide.
Learn more about photosynthesis, here:
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How much would a 25 kg suitcase weigh on the surface of Uranus?
What are the parts of an bacteria
Answer:The numbered parts are: (1) pilus, (2) plasmid, (3) ribosome, (4) cytoplasm, (5) cytoplasmic membrane, (6) cell wall, (7) capsule, (8) nucleoid, and (9) flagellum (Source: LadyofHats [Public domain] via Wikimedia Commons). One of the most important structures of a bacterial cell is the cell wal
Explanation:
EXERCISE 1. Which blood vessel supplies the heart muscles with oxygen?
Answer:
Coronary arteries is the answer .
Suppose you wanted to gather information about different kinds of birds. What are the two places you could go to find this kind of information?
How does electricity impact the society for better or for worse?
Answer:
Electricity impacts the society for both better and worse. Since humans use so much we are helping climate change, and helping cause droughts. But it is helpful because we can have light, save food for longer, cook, have fun, and stay warm or cold during the year
Explanation:
The four main types of biomolecules are carbohydrates, lipids, proteins, and
O nucleic acids.
o sugars.
O fatty acids.
O amino acids.
Answer:
the answer is nucleic acids
Explanation:
The four main types of biomolecules are carbohydrates, lipids, proteins, and nucleic acids. Thus, the correct option for this question is A.
What are Biomolecules?Biomolecules may be defined as those types of molecules that are significantly present in the body of living organisms and are required to perform essential functions like cell division, morphogenesis, or development.
The four types of biomolecules are carbohydrates, lipids, proteins, and nucleic acids. Carbohydrates are energy-deriving organic molecules that provide immediate energy for the cells to perform metabolic activities.
Proteins are required for the structural arrangement and absolute function of cells. Nucleic acids are required for synthesizing the genetic material of an organism. While lipids store energy.
Therefore, the four main types of biomolecules are carbohydrates, lipids, proteins, and nucleic acids. Thus, the correct option for this question is A.
To learn more about Biomolecules, refer to the link:
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Question 5 Multiple Choice Worth 4 points)
(03.02 MC)
The immediate result after DNA replication are
one old strand that came back together after replication and one completely new strand that was just assembled
O two completely new strands of DNA
O three strands of DNA, one old and two new
O two strands of DNA that each contain one strand of the original DNA molecule
Answer: C
Explanation:
Two strands of DNA that each contain one strand of the original DNA molecule.
The correct option is C.
Where Is DNA Found?A tiny quantity of DNA is also found in the mitochondria, where it is known as mitochondrial DNA, while the bulk of DNA is found in the cell nucleus, where it is known as nuclear DNA. Organelles such as mitochondria called mitochondria transform the energy from food into the a form that can be utilized by cells.
What is the main function of DNA?The instructions required for a creature to grow, endure, and reproduce are encoded in its DNA. Dna fragments must be transformed into messages that can be utilized to create protein, which are the protein complexes that carry out the majority of the work in our bodies, in order to perform these activities.
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The complete question is -
The immediate result after DNA replication are one old strand that came back together after replication and one completely new strand that was just assembled
A- Two completely new strands of DNA
B- Three strands of DNA, one old and two new
C- Two strands of DNA that each contain one strand of the original DNA molecule
Just a easy question .....
I want to see who can answer the faster and brainiest
Differences between duck and peacock
(Please don't spam ) Answer quickly please
Answer:
Duck is smaller whereas peacocks are big
Duck has black\brown features whereas peacocks have colorful feathers.
Please help battle of the beaks
0.3 Product Ticket: CER
Question
Use the text to identify the sentences with evidence that matches the claim.
Claim 1 --> Tropical rainforests contain more biodiversity than all other biomes.
1) Biodiversity refers to the total number of different species of all kinds living in an area.
2) Tropical rainforests have many of the climate characteristics that organisms of different species need to grow, such as warm temperatures, plenty of rain, and many food sources.
3) There are large amounts of daily sunlight, which provides a great deal of energy to a variety of rainforest organisms.
4) Surprisingly, rain forest soil is very poor.
5) Due to the large amounts of rainfall, nutrients are leached out of the soil quickly.
6) Warm temperatures cause dead organisms to decay quickly, and the nutrients are then used by many different plants.
1, 2, 5
1, 2, 5
1, 3, 4
1, 3, 4
2, 3, 6
2, 3, 6
1, 4, 5
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What is an effect of the reduction in bird populations?
Answer:
There will be new niches formed as the birds remaining have to adapt to living with smaller population. There is a likely chance that they will develop changes in beak size and shape. The predators of these birds will have to adapt onto using a different food source, the birds may migrate to a safer area... or, theres a possiblility that the birds will simply go extinct!
What was the best dependent variable in the lodine Clock Reaction?
Answer: Please refer to:
The time taken is therefore the dependent variable. To reduce random errors, three repetitions will be performed for each set of concentration.
Explanation:
Not sure but hope it helps.
How do scientific models provide a practical solution for some types of research? Check all that apply.
Answer:
Where are the options?
Explanation:
Amphetamine is a drug that suppresses appetite in most animals. To study the magnitude of this effect in rats a scientist randomly assigned thirty rats into three treatment groups to receive either a dose of amphetamine (2.5 or 5.0 mg/kg) or a control (saline, 0 mg/kg). Then food consumption was measured in grams per kilogram of body weight (g/kg) for the three-hour period after the injection.
A) Which of the choices on Canvas best represents the null/alternative hypothesis of this study?
µ1 = µ2
µ1 ≠ µ2
µ1 > µ2
µ1 < µ2
µ1 ≥ µ2
µ1 ≤ µ2
θ1 = θ2
θ1 ≠ θ2
θ1 > θ2
θ1 < θ2
θ1 ≥ θ2
θ1 ≤ θ2
ρ = 0
ρ ≠ 0
β = 0
β ≠ 0
The residuals of these data are consistent with a normal distribution.
These residuals of these data are not consistent with a normal distribution.
The variances of the response/residuals are the same for all values of x.
The variances of the response/residuals are not the same for all values of x.
Answer:
Explanation:
Amphetamine is a drug that suppresses appetite in most animals. To study the magnitude of this effect in rats a scientist randomly assigned thirty rats into three treatment groups to receive either a dose of amphetamine (2.5 or 5.0 mg/kg) or a control (saline, 0 mg/kg). Then food consumption was measured in grams per kilogram of body weight (g/kg) for the three-hour period after the injection.
A) Which of the choices on Canvas best represents the null/alternative hypothesis of this study?
µ1 = µ2
µ1 ≠ µ2
µ1 > µ2
µ1 < µ2
µ1 ≥ µ2
µ1 ≤ µ2
θ1 = θ2
θ1 ≠ θ2
θ1 > θ2
θ1 < θ2
θ1 ≥ θ2
θ1 ≤ θ2
ρ = 0
ρ ≠ 0
β = 0
β ≠ 0
The residuals of these data are consistent with a normal distribution.
These residuals of these data are not consistent with a normal distribution.
The variances of the response/residuals are the same for all values of x.
The variances of the response/residuals are not the same for all values of x.
Answer:
Explanation:
Amphetamine is a drug that suppresses appetite in most animals. To study the magnitude of this effect in rats a scientist randomly assigned thirty rats into three treatment groups to receive either a dose of amphetamine (2.5 or 5.0 mg/kg) or a control (saline, 0 mg/kg). Then food consumption was measured in grams per kilogram of body weight (g/kg) for the three-hour period after the injection.
A) Which of the choices on Canvas best represents the null/alternative hypothesis of this study?
µ1 = µ2
µ1 ≠ µ2
µ1 > µ2
µ1 < µ2
µ1 ≥ µ2
µ1 ≤ µ2
θ1 = θ2
θ1 ≠ θ2
θ1 > θ2
θ1 < θ2
θ1 ≥ θ2
θ1 ≤ θ2
ρ = 0
ρ ≠ 0
β = 0
β ≠ 0
The residuals of these data are consistent with a normal distribution.
These residuals of these data are not consistent with a normal distribution.
The variances of the response/residuals are the same for all values of x.
The variances of the response/residuals are not the same for all values of x.
T T
Tt
Tt
tt
What is the genotype ratio for this cross?
During the healing of a bone fracture, the procallus forms dense regular connective tissue and becomes a ______________ callus, which lasts for about three weeks.
Answer:
fibro-cartilage
Explanation:
Determine whether the following statement is true or false and why. “Variation caused by the environment is not heritable, so it is not subject to natural selection.”
A. True
B. False, it should read “Variation caused by the environment is heritable, so it is subject to natural selection.”
C. False, it should read “Variation caused by the environment is not heritable, so it is subject to natural selection.”
D. False, it should read “Variation caused by the environment is heritable, so it is not subject to natural selection.”
Answer:
True
Explanation:
Answer from gauth math
The statement "Variation caused by the environment is not heritable, so it is not subject to natural selection" is definitely true. Thus, the correct option for this question is A.
What is Variation?Variation may be defined as the indication of differences in the magnitude of response among individuals in an identical population given an identical dose of a compound.
Some variations are the results of differences provoked by surrounding or environmental factors. Such types of variations are called environmental variations. This type of variation is typically non-heritable in nature.
The variations that locate in the genomic sequence of an individual will tends to cause heritability and can pass from one generation to the next.
Natural selection deals with the process through which populations of living organisms adapt and change accordingly.
Therefore, the correct option for this question is A.
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different between annual plant and Biennial plants
hii I am . here are u or not