Answer:
What would happen to the variation between organisms in a population if their DNA polymerases did not have a proofreading function? ... It unwinds DNA.
Explanation:
what are the malleable and ductile properties of metal
Answer: The malleable properties are properties that affect its ability to be harmed, pressed, or rolled into thin sheets without breaking. It is the property of a metal to deform under compression and take on a new shape. The ductile properties is the ablity to be hammered thin or stretched into wire without breaking.
Explanation: Found on Thoughtco.com
Single cells are also known as unicellular organisms. ... They can live and carry out all of their life processes as one single cell.
Answer:
true
Explanation:
they do all things by one cell reproduction feeding etc
What is happening to the chromosomes in this phase of mitosis?
Answer: The answer is A
During mitosis (nuclear division), the chromosomes condense, the nuclear envelope of most cells breaks down, the cytoskeleton reorganizes to form the mitotic spindle, and the chromosomes move to opposite poles. Chromosome segregation is then usually followed by cell division (cytokinesis).
what name is given to the collection of traits exhibited by an organism?
Answer:
The observable traits expressed by an organism are referred to as its phenotype. An organism's underlying genetic makeup, consisting of both physically visible and non-expressed alleles, is called its genotype.
Explanation:
¿Cuáles son los factores biológicos o vivos que afectan a un ecosistema?
Answer:
true
it have later than 1234567
Answer:
Translate
Explanation:
1. a) Students are trying to decide which is better for the environment: glass bottles or aluminum cans. They intend to use a formal method of investigation to determine which container is better. They are going to make a list of pros and cons for using each type of container but first need to do some research. The students need to find out things like how much matter and energy are used to make the bottles and cans.
b) How do you know the students in the above study are acting as scientists? (1 point)
Answer:
because they are helping the envioment and developing experiments
Explanation:
What are the effects for using gold in our industry?
Answer:Modern industrial gold mining destroys landscapes and creates huge amounts of toxic waste. Due to the use of dirty practices such as open pit mining and cyanide heap leaching, mining companies generate about 20 tons of toxic waste for every 0.333-ounce gold ring.
Explanation:
the exchange of gases within the cells of the body is known as
Explanation:
The exchange of gases between the blood and tissue cells is internal respiration. Finally, the cells utilize the oxygen for their specific activities: this is called cellular metabolism, or cellular respiration. Together, these activities constitute respiration.
PLEASE HELP RIGHT NOW ASAP!!!!! 100 POINTS TO WHOEVER ANSWERS CORRECTLY!!!!!! :)
A group of students prepared a table listing the types of reproduction that occur in several organisms. Based on this information, which of the organisms can produce offspring that are genetically identical to the parent organism? Explain your reasoning.
ANSWER: cats and frogs
Select the statement that is true.
A. DNA has the sugar deoxyribose, while RNA has the sugar ribose
B. Thymine is only present in DNA, while cytosine is only present in RNA
C. DNA and RNA are both double-stranded
D. Translation copies DNA to mRNA, while transcription coverts mRNA into proteins
Answer:
C. DNA and RNA are both double-stranded
Explanation:
This is the only one that is true.
what is metaphase and what does it do?
Answer:
Metaphase is the second stage of cell division, between prophase and anaphase, during which the chromosomes become attached to spindle fibers. A metaphase separates duplicated genetic material that is carried in the nucleus of a parent cell and then converts it into two identical daughter cells.
Answer:
Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. These chromosomes then become visible. During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell. As metaphase continues, the cells partition into the two daughter cells.
Nanotechnology is the study of using extremely small things across many fields of science. Some scientists have discovered that this technology allows researchers to make targeted changes to the DNA of plants that can help reduce the use of pesticides. What field of science is being used by nanotechnology in this example? A) biology B) chemistry C) engineering D) physics
biology because it was targeted to study the changes in DNA which is a hereditary character
Can anyone please this? ASAP
which step of cellular respiration produces the most atp
Answer: electron transport chain
Design a controlled experiment to determine the effect of hot, dry air on head lice. In your experimental design, be sure to:
• state the hypothesis to be tested in the experiment [1]
• state one way the control group will be treated differently from the experimental group [1]
• state one result of the experiment that would support the hypothesis [1]
An experiment is carried out to answer a question. The hypothesis predicts what is expected to occur. Experimental and control groups are compared to analyze the results, supporting or not the hypothesis.
-----------------------------------------
BACKGROUND
When people are infested with head lice, it is recommended to wash their cloth and dry it with hot air over 53 or 54ºC for 5-30 minutes.
Head lice and eggs seem to die when exposed to those conditions by getting dehydrated.
SITUATION
We will assume that we work in a primary school and that students from the 3rth grade are being affected by this parasite.
We want to know if applying hot air to these students before entering the class will make a difference and help to control this problem.
So, we will propose an experiment to answer this question.
HYPOTHESIS
A hypothesis is a conjecture. A researcher hypothesizes to predict what is going on or what is expected to occur. The hypothesis is a claim of how it works a relation between two or more variables. Usually, it is written in the present time.
Hypothesis ⇒ Applying hot air to students' heads kills the head lice that students are carrying.
To evaluate the effect of hot air, we need to keep control of as many other variables as possible.
To do so, we asked students' families not to use other treatments on students' heads and to bathe them daily.
In this way, we were sure that all students
were equally affected by the parasite, took showers every day, and neither was using any other product that could affect the results.Our population was the 3rth grade students ⇒ 64 children ⇒ 30 girls + 34 boys.
Before the experiment, we separated the 3rth grade into two groups.
Group A ⇒ 32 students ⇒ 15 girls + 17 boys ⇒ Experimental groupGroup B ⇒ 32 students ⇒ 15 girls + 17 boys ⇒ Control group
→ Treatment
Each student from group A received hot air every day for one week before entering the class.
Hot air was 53ºC and was applied for 5 minutes.
→ Control
Each student from group B did not receive the treatment for one week before entering the class.
CONTROL GROUP
The control group is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment.
Individuals of the control group are selected from the same population as the treatment group.
*** These two groups are identical in all aspects except for the independent variable, which changes in the treatment group but remains constant in the control group. ***
The control group is Group B. The only difference between the control and the experimental group is that the first one did not receive the treatment. Every other aspect was equal for both groups.
The only way the control group was treated differently from the experimental group was that the control group did not received the treatment, while the experimental group did.
RESULTS
After one week, groups were compared to see if the hot air was effective in killing head lice.
When comparing the control and the experimental group, we could see that students from group A were free of parasites.
Students from group B were still affected by the head lice.
CONCLUSION
The results support the hypothesis. Hot air turned to be a great treatment for lice control.
-------------------------------------------
Related link: https://brainly.com/question/17314369?referrer=searchResults
https://brainly.com/question/19496416?referrer=searchResults
How does bromothymol blue act as an indicator for carbon dioxide? What evidence do you have to support your conclusion?
Answer:
Carbon dioxide production can be measured by breathing through a straw into a solution of bromothymol blue (BTB).
Explanation:
BTB is an acid indicator; when it reacts with acid it turns from blue to yellow. The more carbon dioxide you breathe into the BTB solution, the faster it will change color to yellow.
A team of engineers is asked to evaluate several different design solutions. Which action is most likely to help them with their evaluations? A. Asking detailed questions about the criteria and constraints B. Deciding which design solution is least costly without considering the criteria C. Changing the constraints to match the design solution they like the most D. Asking who developed the project's criteria and constraints
Answer:D
Explanation:Asking who developed the project's criteria and constraints
Answer: asking detailed questions
Explanation:
Hydrogen pumps move hydrogen ions into which structure?
O A. The thylakoid
O B. The mitochondrion
O C. The cytosol
D. The stroma
Answer:
a
Explanation:
i
The volume (V) of a cylinder can be determined by using the formula
V = ar?h,
where r = the radius of the base, and h = the height of the cylinder. What is the result
of solving this equation for r?
Answer:
Explanation:
To solve for r, simply means to isolate the variable:
[tex]V = pi*r^2*h\\[/tex]
The inverse of multiplication is division, so divide both sides by pi and h
[tex]\frac{V}{pi*h} = r^2[/tex]
[tex]r = \sqrt\frac{V}{pi*h}[/tex]
HURRY PLEASE!!
Which is not a part of the cell theory? *
Cells divide into cells
Cells are not living things
All organisms are made up of one or more cells
Cells are the basic unit of structure and organization of living organisms
Answer:
Cella are not living things
Explanation:
Cells are living things.
Answer:
Cells are not living things
Explanation:
The other three are true, however cells are living things so it is false.
Hopefully this helps!
Brainliest please?
what kind of enzyme adds a phosphate group to another protein?
Answer:
kinase
Explanation:
is the correct answer
An Object at Rest video and explain
how it relates to the rock cycle and provide examples
Answer:
Explanation:
XD
Which term best describe the ability of a living system to be restored through secondary ecological succession after a severe disturbance?
resilience
constancy
diversity
inertia
persistence
Answer:
resilience
Explanation:
Ecological resilience is the ability of an ecosystem to be restored through secondary ecological succession after a severe disturbance. i.e. Grassland can burn easily but recover quickly.
Answer:
Resilience: the ability to withstand adversity, destruction and to bounce back, to recover.
Explanation:
Critical Thinking When lipid is added to a solution of a detergent in water, the detergent breaks
up large globules of the lipid into much smaller globules. What effect do you think a detergent would
have on the integrity of cells? Explain your answer.
Answer: The cell would break apart.
Explanation:
Because Detergent breaks apart lipids, it would destroy the phospholipid bilayer, causing the whole cell to fall apart.
In which organelle would the above events most likely occur?
A. Chloroplast
B. Mitochondria
C. Nucleus
D. Ribosome
PLS HELP!!
Answer:
Mitochondria
Explanation:
The organelle in which the above events most likely occur is known as the Chloroplast. Thus, the correct option for this question is A.
What is an Organelle?An organelle may be defined as a type of tiny organ or a subcellular structure that has significantly one or more specific functions in order to perform in the cell which is essential for the survival of living organisms.
The events that are demonstrated in the picture are known as the light reaction and dark reaction of photosynthesis. The light reaction of photosynthesis occurs in the thylakoid membrane of the chloroplast while the dark reaction of photosynthesis occurs in the stroma of the chloroplast.
Therefore, the chloroplast is an organelle in which the above events most likely occur. Thus, the correct option for this question is A.
To learn more about Chloroplast, refer to the link:
https://brainly.com/question/13650763
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how would you modify the hypothesis and repeat the experiment for improved or more complete results
Answer:
you could try to do another experiment that would be the obvious and the simple solution.
Which one of the following traits is nota characteristic of living things?A.Needs energyB.Responds to environmentC.Comes from nonliving matterD.Reproduces
Answer:
C.
Explanation:
If they came from nonliving things, they would not be able to live in the first place
How hydrogen and oxygen atoms react with each other to form a compound
Which of the following would cause a cell to fill with water?
Answer:
Typically, a cell would fill with water is the concentration of water is greater outside the cell. Their main priority is to maintain a constant state of homeostasis, and so they would balance the pressure both inside and outside of their cell membrane.
Explanation:
Have a great day, and spread some positivity!
2. What is the difference between parasitic roots and mycorrhizae?
Answer:
the main difference between the paasitic roots and mycorrhizae is that the parasitic roots are adventious roots of parasitic plants penetrating into the conducting tissue of the host plant whereas mycorrhizae r the association's between fungi and higher plants