Cells can die or become damaged. Which part of cell theory is used to replace dead or damaged cells?
A. Cells divide to make new cells.
B. Cells multiply by cellular respiration
C. Cells take in new cells through endocytosis. D. Cells grow larger to make up for the lost cells.
Answer:
A
Explanation:
cells divide by mitosis hope this helps
Question 9 of 30
Which of these economic problems is a result of a global issue?
A. Earth's fossil fuel resources are quickly becoming exhausted.
B. A business that relies on older customers is losing profits.
C. Tourism is less popular in one large city than another.
O D. A person's carbon footprint is larger than his friend's.
SUBMIT
Answer:
A
Explanation:
Because of all gases escaping into the air
Soil organisms, such as mycorrhizal fungi, impact the rate of succession in ecosystems. Mycorrhizal fungi have a mutualistic relationship with various species of plants and increase the plant growth and survival. Sand dunes often lack mycorrhizal fungi, and a researcher wanted to determine the effect of adding mycorrhizal species to sand on disturbed beaches on grass growth. The researcher set up various mycorrhizal communities at disturbed beaches in different locations on the east coast of the United States. Identify the independent variable in the study.
Answer:
The amount (number) of mycorrhizal fungi
Explanation:
In a scientific experiment/study, the independent variable is the variable that isn't changed by other variables, while the dependent variable is the variable that is being measured during the experimental procedure. The independent variable is manipulated by the researcher (in this case, the amount of mycorrhizal fungi), thereby affecting the dependent variable (in this case, grass growth). In consequence, a variable is dependent because it 'depends' on the independent variable.
As a responsible student, what practical thing can you do to contribute to the global effort against global warming?
a. using plastic cups in experiments
b. using a car instead of a bike to go to school
c. turning the lights off when not in use
d. washing clothes only in the afternoon
e. taking a shower only in the morning
Answer:
Its B(and c if it you could answer 2 )
Explanation:
a. Sure your using plastic less but still you could have avoided the use of cups in all.
b. (we already know this is the answer but let me explain) If you use a car of course it would pollute the air so if you use a bike you would both be exercising and polluting the air less.
c. It would cocerve energy so the main reason i asked if it was multi answer.
d.what would that do, your still using water?
e. same answer as last explination.
What does bile help absorb into the bloodstream?
Some people worry that the increasing number of cell phones will cause cancer because of the energy of the radio waves they emit. Cell phones are a new technology that only recently became widely used. And because cancer takes years to develop, the amount of risk is not yet known.
Research this issue, and summarize what’s known so far. In your summary, include information about the energy of radio waves. Be sure to only use credible sources. Based on what you learned from your research, do you think people should limit their cell phone use? Why or why not?
Answer: Yes.
Explanation: Because if it causes disease or problem then why continue to do it?
Answer: Well, from what my research is saying. cell phones emit low levels of non-ionizing radiation when in use. It can also referred to as radio frequency (RF) energy. And as stated by the National Cancer Institute, "there is currently no consistent evidence that non-ionizing radiation increases cancer risk in humans. So, it has not been proven weather or not you could get a tumor or cancer from the energy waves.
Some information about a radio wave is that we can have an energy of around 4 x 10-10 eV.
Okay so, I do think people should limit their cell phone use for other reasons. For one, Phones can be overly addicting, I do speak from experience. Phones can also take up way to much of your time is you're just scrolling around on them.
Explanation: So at least that's what I would say. Hope this helped! :)
Two distinct bands appear in a single lane at the completion of an SDS-PAGE analysis of an unknown protein. Select one: a. These bands represent two subunits of a homodimer. b. Each band represents a different sized subunit of a multimeric protein. c. Each band represents a protein subunit with different charge to mass ratio. d. These bands represent two subunits of a heterodimer. e. These bands represent two separate subunits of identical size.
Answer:
b. Each band represents a different-sized subunit of a multimeric protein.
Explanation:
SDS-PAGE analysis allows the separation and discrimination of proteins according to their molecular weight. The technique separates proteins in an electromagnetic field.
The SDS-PAGE technique makes proteins move in solid support -gel- by the action of the electric field. The distance reached by each protein is proportional to their molecular weight. The protein separation from a mixture results in bands that reflect their size.
SDS is a detergent that denaturalizes the protein and sets a relation charge size, such as that the motion of the protein in the gel is proportional to its weight. The bigger the protein is, the stronger interaction with the polyacrylamide gel there will be. The speed of displacement in the electromagnetic field is inversely proportional to the protein size.
i nned help with these
A mutation on the checkpoints of the cell cycle can cause....
A. Apoptosis
B. Uncontrolled division
C. S phase
D. deactivation
Answer:
I will GUESS B is your answer
Explanation:
A deer has all white fur with the genotype (ff). This white deer mates with a grey deer (Ff). What is the chance that they will give birth to grey colored deer?Question 1 options:
a. 0%
b. 100%
c. 50%
d. 75%
Just like you and me, bacteria cells are under constant attack by
A. antiseptics
B. white blood cells
C. viruses
D. all the above
Answer:
C. Viruses
Explanation:
What is the reason water has so many special properties?
Answer: Water has many unusual properties
Explanation: Water has many unusual properties because of its polar covalent bonds. Oxygen has a larger electronegativity than hydrogen, so the electron pairs are pulled in closer to the oxygen atom, giving it a partial negative charge. Subsequently, both of the hydrogen atoms take on a partial positive charge.
UNIT TEST!! Help!! :C
1. Which statements describe gene therapy? Check all that apply.
☐ It cures all cases of cystic fibrosis.
☐ It involves the modification of DNA.
☐ It is easy to apply to all cells affected by the disorder.
☐ It attempts to replace a mutated gene with normal DNA.
☐ It does not always cure patients who use it.
2. A fruit fly has black eyes. Having red eyes is a dominant trait (R) and having black eyes is a recessive trait (r).
Which describes the fruit fly’s genotype and phenotype?
A.)genotype: black eyes
phenotype: Rr
B.)genotype: black eyes
phenotype: rr
C.)genotype: rr
phenotype: black eyes
D.)genotype: Rr
phenotype: black eyes
Thank you sm for helping <33
Answer:
for number one i got ☐ It involves the modification of DNA
☐ It attempts to replace a mutated gene with normal DNA.
☐ It does not always cure patients who use it.
FOR NUMBER TWO I GOT:
D.)genotype: Rr
phenotype: black eyes
plz mark brainliest!!!
Answer:
☐ It cures all cases of cystic fibrosis.
☐ It involves the modification of DNA. √
☐ It is easy to apply to all cells affected by the disorder.
☐ It attempts to replace a mutated gene with normal DNA. √
☐ It does not always cure patients who use it. √
Explanation:
PLEASE HELP ME!!!!!!!!!!!!!
Answer:
The first historical use of biomaterials dates to antiquity, when ancient Egyptians used sutures made from animal sinew. The modern field of biomaterials combines medicine, biology, physics, and chemistry, and more recent influences from tissue engineering and materials science.
Explanation:
For more info...visit
https://www.nibib.nih.gov/science-education/science-topics/biomaterials#:~:text=The%20first%20historical%20use%20of,tissue%20engineering%20and%20materials%20science.
2 differences between animal and plant cells
Answer:
Plants cells have cell walls and they also have chloroplasts (animal cells don’t have either of these)
Explanation:
The cell wall helps to maintain a rigid structure
The chloroplasts helps in the process of photosynthesis
True or False: Muscle memory occurs when you practice a movement a lot and the body remembers it.
Answer:
true
Explanation:
Answer:
True
Explanation:
A
is an organism that eats other organisms to gain energy; it is also called
.
Answer:
heterotroph
Explanation:
Heterotrophs are known as consumers because they consume producers or other consumers
How would you classify this organism based on the dichotomous key?
Select one:
A. Kingdom Plantae
B. Viruses
C. Kingdom Eubacteria
D. Kingdom Protista
Answer:
Explanation:
3a b is your answer
Which of the following best describes the connection between cardiovascular disease and age?
what is the difference between ovulation parturition, and gestation
[tex]regalo \: puntos[/tex]
Answer:
jaja gracias
Explanation:
PLEASE HELP 50 POINTS BRAINLIST
Answer:
it does not specify which is female and which is male so i am going to go with a.
Explanation:
which part of cellular respiration provide most of the energy to run
Answer: The electron transport chain.
Explanation:
Cellular respiration is defined as the mechanism by which living organisms converts organic substances from food such as glucose with the use of oxygen into energy-carrying biomolecules (e.g. adenosine triphosphate or ATP). There are different stages of cellular respiration which includes:
--> glycolysis,
--> pyruvate oxidation,
--> the citric acid or Krebs cycle, and
--> oxidative phosphorylation.
The oxidative phosphorylation also referred to as the ELECTRON TRANSPORT CHAIN occurs in the inner membrane of the mitochondria. It transfers electrons donated by the reduced electron carriers NADH and FADH2 (obtained from glycolysis, the citric acid cycle or fatty acid oxidation) through a series of electrons acceptors, to oxygen.
The electron transport chain is said to produces most of the energy which is 34 ATP molecules, as compared to only 2 ATP for glycolysis and 2 ATP for Krebs cycle.
how do you solve for percentage in a punnett square?
Answer:
Count the total number of boxes in your Punnett Square. This gives you the total number of predicted offspring. Divide the (number of occurrences of the phenotype) by (the total number of offspring). Multiply the number from step 4 by 100 to get your percent.
SOMEONE HELP ME PLEASEEEE ILL MAKE BRAINLIST OR WHATEVER HOW UTS CALLED
Answer:
this would be layer 1
Explanation:
it is closest to the surface which means it will have the most recent fossil if you had a question that said what layer has the oldest fossils it would be 4
. You could consider the chloroplasts and mitochondria in cells to be analogous to a. waste dumps. c. power plants. b. resource depletion centers. d. self-contained, non-interactive entities.
Answer:
power plants
i think but i dont really know sorry
Explanation:
All organisms in the kingdoms Eubacteria and Archaebacteria ____________?
A.multicellular organisms.
B.are autotrophs
C.prokaryotes.
D.are heterotrophs
Answer:
C
Explanation:
A prokaryote is a typically unicellular organism that lacks a nuclear membrane-enclosed nucleus.
Endocytosis and exocytosis require energy.
True or false?
Mosses are an example of which of the following?
decomposers
heterotrophs
autotrophs
detritovores
primary consumers
Answer:
mosses are autotrophs
Explanation:
-
NO ONE
literally no one.....
DAD BE LIKE:
OK *THUMBSUP*