Answer:
a negative charge.
Explanation:
Answer:
no
Explanation:
( ´･･)ﾉ(._.`)
The cytoplasm of a cell is at ph7 and the interior of an organelle is ph8
A. What is the quantitative relationship between the number of hydrogen ions present at pH 7 versus pH 8?
B. Using your knowledge of transport in cells, what is a possible mechanism for how the cytoplasm would have a lower pH than inside the organelle?
A pH=-log(10)[H+], from this formula we can deduct that when the number of protons is higher the pH is lower and when the number of protons is lower the pH is higher. This means there are more hydrogen ions in the cytoplasm compared to the inside of an organelle.
B Hydrogen ions are very small particles so they can easily diffuse through the plasma membrane inside the cytoplasm, resulting in a higher number of protons and a lower pH. Organelle membranes have a lower permeability for hydrogen protons so the pH is higher.
PLEASE HELP!!
Options
319
400
300
330
A bus changes its velocity from 5 m/s to 15 m/s in 5 seconds. What is its acceleration?
A 2 m/s2
B 5 m/s2
C 25 m/s2
D) 75 m/s2
Answer:
[tex]\boxed {\boxed {\sf A. \ 2 \ m/s^2}}[/tex]
Explanation:
Acceleration is the rate of velocity's change with time.
We can calculate it by dividing the change in velocity over time.
[tex]a=\frac{v_f-v_i}{t}[/tex]
Let's define the variables. The final velocity is 15 meters per second. The initial velocity is 5 meters per second. The time is 5 seconds.
[tex]v_f= 15 \ m/s \\v_i= 5 \ m/s \\t= 5 \ s[/tex]
Substitute the values into the formula.
[tex]a=\frac{15 \ m/s- 5 \ m/s}{5 \ s }[/tex]
Solve the numerator first.
15 m/s - 5 m/s= 10 m/s[tex]a=\frac{10 \ m/s}{5 \ s}[/tex]
Divide.
[tex]a= 2 \ m/s/s = 2 \ m/s^2[/tex]
The acceleration of the bus is 2 meters per second squared.
Please help me someone??
Answer:
1.89 feet
Explanation:
A student creates a diagram showing a scale representation of the planets in the solar system. Which planet would appear about four times larger than the diameter of Venus?
Answer:
hi
Explanation:
Can anyone help me, I have to write a scientific report on recycling but I don't know how to write it, please help me
Plz zzzzzzzzz....
Answer:
Searching For Facts
You must first begin surfacing the net or other sources for facts about the Topic provided.It also quite depends on the size of the scientific report you are preparing. (It is usually large about 4000 words).If you are abundant with information, about the topic, write To-The-Point. If there is a lack of information, try to expand about a sub-topic whilst including new facts about the same.Constructing a report:
You can start with an appropriate title about your topic, just ensure that it doesn't go too long. Begin the report with a short introduction about the report. If you are noting an experiment, include the apparatus required.The body should provide a detailed description about the topic. You may use tables or paste images in the report.If it's a report about an experiment, don't forget to write down the observations.Lastly, a conclusion with a brief thought derived, must be included in the report.If necessary, attach the References in the report too.What is the structural level of a plant leaf?
A Organism
B Tissue
C Cell
D Organ
Answer:
The internet says tissue, but I`m doubting that a bit. It`s still the best answer of the 4, sorry
Answer:
Cells
Explanation:
they use mitosis for food
After the cell cycle was discovered, scientists found a protein that regulates the cycle. They have since found many more proteins involved in the regulatory process. Scientists are using this information to learn more about cancer. Which phrase describes cancer a. Uncontrolled cell growth b. Bent and twisted red blood cells c. An abnormal number of chromosomes d. Lipid accumulation in brain cells
Answer:
a. Uncontrolled cell growth
Explanation:
Cancer is an irregularity that occurs when cells mutate in a harmful way. This causes abnormal cell growth that is uncontrollable. These cell growths become tumors that, based on the type, may or may not spread to other parts of the body.
Answer:
A. Uncontrolled cell growth
Explanation:
When cancer enters the body, the cells divide rapidly and without a stop, and it also destroys your body tissue.
Theoretical Issue In Development (psychology)
1Q.)When a psychologist claims that developmental processes occur rapidly and are marked by distinct periods, the psychologist most likely supports which theories of development?
1A.)stage
2Q.)Psychologists who favor the theory of continuous development tend to refer to stage theories of development as “discontinuous.” t/f
2A.)True
3Q.)Stage theories and continuity theories of development can be used together to adequately assess changes in growth that occur throughout life.t/f
3A.)True
4Q.)If development does not occur in stages, then it is likely that development can be described as __________.
4A.) continuous
5Q.)Which of the following statements concerning the debate between personality change and stability is not correct?
5A.)
An infant’s personality provides a solid basis for determining what their personality will be later.
6Q.)Which of the following statements concerning personality stability is not correct?
6A.) Personality is often more malleable after one reaches adulthood.
7Q.)Temperament is an aspect of personality that often changes throughout someone’s life.t/f
7A.)False
8Q.)Research indicates that stage theories are more accurate than developmental theories when it comes to assessing developmental changes.t/f
8A.)False
9Q.)When a psychologist claims that experience and learning are key elements in initiating developmental changes, the psychologist most likely supports which theories of development?
9A.)continuity
10Q.)Brooke, who believes in continuous human development, is reading a paper on famous psychologist Erik Erikson. In Erikson’s psychosocial development theory, children aged 3 to 5 years old struggle with becoming responsible for beginning tasks.
Since Brooke believes in continuous human development, which of the following statements would she agree with?
10A.)Children may begin their struggle with responsibility earlier than age 3 or later than age 5.
A cell began with 30 chromosomes. After meiosis, what can you expect?
Question 1 options:
4 diploid cells with 15 chromosomes
4 diploid cells with 30 chromosomes
2 haploid cells with 15 chromosomes
4 haploid cells with 15 chromosomes
Answer:
Explanation:
Option 4 bescause theres 4 extra cell and they are haploid.
SOMEONE PLEASE HELP ME WITH THIS!!!
Answer:
Student B or answer D
Explanation:
In the Picture above.
Answer:
A fossil fuels
Explanation:
fossil fuels are Americas biggest energy producers we use things like coal, natural gas, and petroleum
Please please help......
Answer:
someone already answered
can someone help asap
Answer:
Ribosomes, cytoplasm.
Explanation:
Ribosomes are the organelle responsible for translation. Translation occurs in the cytoplasm.
1. Did one material heat
faster than the other?
Summerize the steps in the calvin cycle
Answer:
carbon fixation, reduction phase, carbohydrate formation, and regeneration phase.
2. A reproductive process that involves two parents that combine their
genetic material to produce a new organism, which differs from both
parents. PLEASE I NEED TO ANSWER THIS
What equation represents a population that is increasing?
Birth + Immigration - Death + Emigration
Birth + Immigration Death + Emigration
Birth + Immigration > Death + Emigration
Birth + Death = Immigration + Emigration
Answer:
Populations gain individuals through births and immigration. They lose individuals through deaths and emigration. These factors together determine how fast a population grows.
C. Birth + Immigration > Death + Emigration
PLS HELP QUICK AND THANK YOU!
Water moving sediment down slopes and a glacier forming a U-shaped valley as it moves past mountains examples of
A-weathering
B-erosion
C-depositions
D-rounding
Answer:
B.Erosion
Explanation:
Answer:
C Depositions
Explanation:
Cellular respiration moves carbon from ________ to _________ A. Atmosphere B. Biosphere C. Geosphere D. Hydrosphere
Answer:
Cellular respiration moves carbon from the atmosphere to geosphere.
Cellular respiration moves carbon from atmosphere to geosphere. Thus option A and C are correct.
What is cellular respiration ?Cellular respiration can be defined as the process which occurs in every cells mainly mitochondria of plants and animals, it involve in the break down of sugars in the presence of oxygen and releases energy in the form of ATP.
The waste product of this process are carbon dioxide and water during exhalation process done by lungs, breathing and cellular respiration are related to each other.
At every step of cellular respiration energy is used in the form of ATP and carry out the normal function. It can aerobic and anaerobic respiration on the basis of use of oxygen.
For more details regarding cellular respiration, visit
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explain why is there no work in the following:
1. carrying a 15-kg backpack as you walk a horizontal distance of 50 m
2. pushing against a stationary wall for a long time
3.carrying a box inside a tricycle
Answer:
Explanation:
Well, this is one of those physics questions that relies heavily upon technicalities.
Something to remember is work is determined by force*distance.
1. When you are carrying a 15kg backpack, the weight or the backpack itself is quite indifferent. This is because the backpack is moving relative to you, so the backpack isn't doing diddly squat itself. The only force being exerted is yourself against the ground and vice versa because of gravity and Newton's Law, but when you have a horizontal distance (not vertical), the direction of your motion is 90 degrees to the exerted force. When you calculate this out using the formula and cos(90), you'll find the answer is technically 0.
If it were vertically, this'd be different.
2. Again, wording is important. Work is Force times DISTANCE. Key word in this situation, DISTANCE! When you push against a stationary wall (stationary as in, the wall "can do this all day" whereas you definitely can't), you're exerting a force against an object that really, really doesn't want to be moved. Walls in of themselves are MADE to not be moved, that's why they are walls. So, any force you exert is going to get multiplied by a distance of 0, and as we should know from basic times table charts, anything multiplied by 0 will ALWAYS be 0.
So, again, there's technically no WORK done, according to physics. Because again, work is a product of force and distance. So push harder, ya lazy good for nothin weakling!!
3. You can carry anything you want inside a vehicle, it doesn't mean there's any force being done. YOU'RE not doing squat, the vehicle itself is. In a tricycle, if the box is on the tricycle and not affecting you in any way, then there is no force being done despite an obviously moving distance.
By physics definition, there's EFFORT, but no WORK.
Hope this helps a little :)
~Troy
Which of the following has to occur in order for plants to self-fertilize?
A. cross-pollination
B. self-pollination
C. predation
D. mimicry
Answer:
B. self pollination
hope it helps!
The proteins modified in the rough ER
move to the Golgi Apparatus and
other organelles through the
A) secretory pathway
B)photosynthesis
C)nucleus
Answer:
A
Explanation:
The proteins modified in the rough ER move to the Golgi Apparatus and other organelles through the process of the secretory pathway.
What do you mean by Golgi apparatus?
Golgi apparatus may be defined as a cell organelle that is responsible for protein synthesis. It is present in between the ER and plasma membrane.
The secretory pathway reveals the transport of proteins through rough ER to Golgi apparatus, lysosomes, and plasma membrane.
It involves the action of spherical-shaped vesicles that helps in the movement of proteins.
Therefore, the proteins modified in the rough ER move to the Golgi Apparatus and other organelles through the process of the secretory pathway.
To learn more about Cell organelles, refer to the link:
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Give one example of kinetic energy being used by a squirrel to survive?
Answer: A squirrel climbing up a tree is a way squirrels use kinetic energy to survive. A squirrel colliding with a tree.
Explanation: I know this because the motion of climbing up the tree creates the contact of an object moving over a distance through motion . Therefore energy is lost from the squirrel but that energy is transferred.
Answer:
When a squirrel climbs a tree
Explanation:
Thanks
What are people doing to cause The Human Over consumption of Food crisis? More ecological than dietary.
WILL MARK BRAINLIEST!! AND GIVE 40 POINTS!!!!!!!
Answer:
iriekrkfidfix0kddmdk
A Man and his wife have three sons. What is the probability that their next child will be a girl?
50%
50%
75%
75%
100%
100%
25%
25%
Answer:
75%
Explanation:
3 100% boys, next a girl is 75%
Hope this helps plz hit the crown :D
Fruit flies have 3 chromosomes plus sex chromosomes (X and Y). Mutations occurred within four different cells of an
individual female fruit fly as shown in the table below.
Which of these mutations could be passed on to the offspring of this fruit fly?
Group of answer choices
yellow body
leg-shaped antennae
curly wings
absent eyes
Answer:
Its either curly wings or yellow body
Explanation:
4
A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into ag
mixed. Despite mixing, the tan liquid remains separated from the water and collects as a large droplet at the top. W
macromolecule groups is this liquid most likely to be a member of?
O A. carbohydrates
ОВ. nucleic acids
OC. lipids
OD proteins Reset Submit
Answer:
Lipids!
Explanation:
Lipids are made up of Oils that, when mixed in water or other chemicals, will separate. Since Oils do not mix and float to the top, and since Oils are a type of lipid, the answer is Lipids!
What is the role of DNA and chromosomes in coding the instructions of traits passed from parent to offspring?
Answer:
Genes are regions in the DNA that contain the instructions that code for the formation of proteins. Each chromosome consists of a single, very long DNA molecule, and each gene on the chromosome is a particular segment of that DNA. The instructions for forming species' characteristics are carried in the DNA.
The role of DNA and chromosomes in coding the instructions of traits passed from parent to offspring - as follows
Genes are regions in the DNA that contain the instructions that code for the formation of proteins.
Each chromosome consists of a single, very long DNA molecule, and each gene on the chromosome is a particular segment of that DNA.
The instructions for forming species' characteristics are carried in the DNAHereditary information is contained in the nucleotide sequence of DNA in a kind of code.The coded information is copied faithfully into RNA and translated into chains of amino acids.Amino acid chains are folded into helices, zigzags, and other shapes and are sometimes associated with other amino acid chains.Thus, Genes are regions in the DNA that contain the instructions that code for the formation of proteins.
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What is fitness in the context of natural selection?
1the ability to live until old age
2the number of offspring produced
3the ability to survive and reproduce
4strength and stamina
