Answer:
O D. To provide molecules for the electron transport chain
Explanation:
The Krebs cycle, also known as the citric acid cycle, refers to a series of reactions during cellular respiration that produces energy by the oxidation of acetyl-CoA. The Krebs cycle utilizes acetyl-CoA and water in order to reduce the cofactor Nicotinamide adenine dinucleotide (NAD) to NADH, in a process that releases carbon dioxide (CO2). This NADH is then used by the oxidative phosphorylation electron transport pathway in order to generate ATP, the energy coin of the cell.
It’s already over do so pls Help ASAP I WILL GIVE BRAINLIST If u answer all of them I have provided a diagram above for the questions... yes they have to be real answers no jokes pls...
7. Using the DNA sequences of the human, chimp, and baboon above, which species are
more closely related? |
8. How did you determine your answer above?
9. What is the method of comparing DNA sequences of species called?
During translation, the protein chain grows as
What?
What is the structure in the diagram?
Answer: A structure diagram is a conceptual modeling tool used to document the different structures that make up a system such as a database or an application.
Explanation:
Investiga cinco efectos sobre la salud derivados de la exposición física y consumo de aguas contaminadas por desechos industriales o municipales
Answer:
Estar expuesto o consumir agua contaminadas por desechos industriales o municipales puede causar:
Daños neurológicos.Infecciones virales.Irritación de la piel.Problemas gastrointestinales.Problemas cardiacos.Explanation:
La exposición y consumo de aguas contaminadas puede traer diversos problemas. Estas aguas pueden tener virus y bacterias que causan enfermedades tales como gastroenteritis, la cual causa dolor intestinal y vómitos; poliomielitis, la cual daña los músculos y puede terminar en la muerte; hepatitis, virus que afecta el hígado; entre otras enfermedades. Además de la presencia de virus y bacterias que representan una amenaza para nuestra salud, también hay desechos industriales y elementos tales como el arsénico que causan daño en el sistema nervioso, renal, respiratorio, en nuestro corazón y la piel.
Debido a los diversos daños que representan las aguas contaminadas es importante cuidarla y estar siempre en contacto con aguas tratadas o limpias.
The human X and Y chromosomes
A. are of approximately equal size and number of genes.
B. include only genes that govern sex determination.
C. are both present in every somatic cell of males and females alike.
D. are almost entirely homologous, despite their different names.
E. include genes that determine an individual's sex.
Atmospheric carbon dioxide dissolves into ocen surface waters
Answer:
Carbon dioxide, which is naturally in the atmosphere, dissolves into seawater. Water and carbon dioxide combine to form carbonic acid (H2CO3), a weak acid that breaks (or “dissociates”) into hydrogen ions (H+) and bicarbonate ions (HCO3-).
Explanation:
Questions about natural selection
Answer:
c is just wrong because that is not how evolution works evolution is a small change in the DNA that takes a long time through many many generations not just as you or an organism get older and smarter you are not evolving
Which step happens first in DNA replication?
Answer:
Initiation
Explanation:
The initiation of DNA replication occurs in two steps. First, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands. As the helicase moves along the DNA molecule, it continues breaking these hydrogen bonds and separating the two polynucleotide chains (Figure 1).
Potato crops are grown for their carbohydrate content.
Describe how you could safely test the two species of potato to compare their carbohydrate content.
test for starch
test for reducing sugars
8 mark question - IGCSE
Answer:
I hope this helps a little bit.
YO PLZ HELP ME AGAIN!!!!
What type of signals does the nervous system send? What carries these signals?
What are the main organs of the nervous system?
Nervous system messages travel through neurons as electrical signals. When these signals reach the end of a neuron, they stimulate the release of chemicals called neurotransmitters. Neurotransmitters travel across synapses, spaces between neurons or between neurons and other body tissues and cells.
CLAP YOUR HANDS. Have a nice day lol
Answer:
.......................
have a good day :)
Explanation:
What does natural selection act on?
What is the carrying capacity of the wolf population?
Spoints
Year
Wolf
Population
Deer
Population
2,000
Deer
Offspring
Predation Starvation
1971
10
800
400
100
1972
12
920
480
240
2.300
2.500
1973
16
1,000
640
500
1974
22
2.360
944
880
180
1975
28
2,224
996
1,120
26
1976
24
836
960
2
2,074
1,948
1977
21
788
840
0
1978
18
1,896
766
720
0
1979
19
1,862
780
760
0
1980
19
1,882
780
760
0
O 28
O 19
18
10
Ik
Answer:
ExplanatioFor the last decade, the wolf population has hovered around 100, which experts consider Yellowstone's carrying capacity. Carrying capacity describes the maximum number of individuals or species that a specific environment's resources can sustain for an indefinite period without degrading itn:
Which of the following would be considered a source of error in an experiment
Answer:
The answer is laboratory mice are similar but not identical to each other.
Based on this graph, which of the following statements is incorrect?
FYI Online
1. The industrial revolution caused an increase in the rate of growth of the human population.
2. Significant events in human history can impact the growth of the human population.
3. The advent of modern medicine caused an increase in the rate of growth of the human population.
4. If the bubonic plague reemerged, only a small fraction of the human population would be affected.
Answer:its 4 i got it right on ow
Explanation:
I really need help on question two. ANY HELP WOULD BE KINDLY ACCEPTED!!!
Answer:
ok so all u need to do is explain how the cheerio gives the nutrients/energy like whats in it that gives u the energy thats all bb
Explanation:
This change in state of matter happens when energy is added to the object evaporation freezing condensation
If the offspring have the blood groups O and A the genotype parents would be?
Answer:
the answer is OA
1. The colour of a tomato can be represented by RR, Rr or rr. Why do we use capital
letters for some symbols and lower case letters for others? Why are there two
symbols for one trait (characteristic)?
Answer:
The capital letter is used to show a dominant trait, while a lowercase is used to represent a recessive trait.
Explanation:
If you are to take a Mother and a Father as example, and they have 3 children, the father's brown eyes as example we can show the children with capital and lower case depending on their looks. If the Father had brown eyes and 2 of his children out of 3 have brown eyes, we can represent that as a dominant trait, so it would be R. Then, if we take the father's hair color, brown, and the mothers hair color, blonde, we can say 2 of 3 children have brown hair, so 1 of 3 children have brown hair. So we now know that brown hair is a recessive trait. 2 of 3 children have blonde hair so the child with brown eyes and blonde hair could be represented like "Rr". Hope that helps, this is just my little explanation of this!
Which statement BEST describes the measurements he would find in the jar, in the experiment group, B, compared with the concentrations of oxygen and carbon dioxide in the classroom air?
The provided question is incomplete as the important part and group of choices was missing, however, the correct question is given below:
In an experiment, Tony placed a potted plant under a bell jar, completely sealing the jar to the tabletop. After placing a box over the bell jar for 24 hours, he measured the concentrations of oxygen and carbon dioxide in the gas in the jar. Which statement best describes the measurements he would find in the jar, compared with the concentrations of oxygen and carbon dioxide in the classroom air?
Concentrations of both carbon dioxide and oxygen decreased.
Concentrations of both carbon dioxide and oxygen increased.
Carbon dioxide concentration increased; oxygen concentration decreased.
Oxygen concentration increased; carbon dioxide concentration decreased.
Answer:
The correct answer would be - Carbon dioxide concentration increased; oxygen concentration decreased.
Explanation:
There are two major processes respiration and photosynthesis that help in the production and utilizing the carbon dioxide and oxygen in plants. In order for your plant to grow photosynthesis is the process that converts carbon dioxide into glucose and oxygen. Photosynthesis only occurs in the daylight process so the use of carbon dioxide and producing oxygen is limited.
On the other hand, respiration is a continuous process that uses oxygen and glucose to produce carbon dioxide therefore the correct answer is Carbon dioxide concentration increased; oxygen concentration decreased
What do mitochondrial and thylakoid membranes have in common?
Answer:
Both membranes contain ATP Synthase Proteins.
What are the different parts of a bacteriophage? Where is the DNA stored in this virus?
Answer:
What are the differents parts of a bacteriophage?
The tailed phages have three major components: a capsid where the genome is packed, a tail that serves as a pipe during infection to secure transfer of genome into host cell and a special adhesive system (adsorption apparatus) at the very end of the tail that will recognise the host cell and penetrate its wall.
Where is the DNA stored in this virus?
Where is DNA stored in viruses?
The genome of most DNA-containing viruses that infect eukaryotic cells is transported (with some associated proteins) into the cell nucleus, where the cellular DNA is, of course, also found.
Explanation:
Hope it helps you!
Imagine customers moving into and out of a coffee shop. Which situation
resembles how a reaction in dynamic equilibrium acts?
A. There are the same number of people inside the coffee shop as
outside it.
B. People enter the coffee shop at the same rate as others leave.
C. No people are moving either into or out of the coffee shop.
D. Some people sit down and drink their coffee slowly, while others
drink theirs quickly while standing up.
No
Answer:
B. People enter the coffee shop at the same rate as others leave.
Explanation:
did the test !!
The answer is B. People enter the coffee shop at the same rate as others leave.
In a reaction in dynamic equilibrium, the forward and reverse reactions occur at the same rate, meaning that the concentrations of reactants and products remain constant over time.
Similarly, in the coffee shop scenario, if people are entering and leaving at the same rate, the number of customers inside the shop will remain constant, just like the concentrations of reactants and products in equilibrium.
Option A, C, D are not a good analogy for dynamic equilibrium.
Learn more about equilibrium at:
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what is a greenhouse system
Answer:
A greenhouse also called a glasshouse, or, if with sufficient heating, a hothouse is a structure with walls and roof made chiefly of transparent material, such as glass, in which plants requiring regulated climatic conditions are grown.
Explanation:
;pppp
Answer:
A greenhouse (also called a glasshouse, or, if with sufficient heating, a hothouse) is a structure with walls and roof made chiefly of transparent material, such as glass, in which plants requiring regulated climatic conditions are grown. These structures range in size from small sheds to industrial-sized buildings.
Hope this helps, I think this is what it is!! Sorry if I am wrong. Best of luck to all who needed this answer.
What would happen if cytokinesis did not work properly?
1) DNA replication would not occur
2) A cell would have a nucleus with too many chromosomes
3) A cell would have two nuclei
4) New daughter cells would not have enough organelles or would be missing organelles
5) a cell would be smaller in size
Answer:
If cytokinesis did not occur during mitosis the cytoplasm wouldn't be divided and there wouldn't be two identical daughter cells as a result. so the cell would remain to be at rest not being able to separate into two individual cells
Transcribe and then translate the following DNA strand:
AAG GAT TAČ GAC GAG TTA ACC ACT CAA
mRNA:
Protein:
Answer: mRNA- UUC CUA AUG CUG CUC AAU UGG UGA GUU
protein- PHE LEU MET LEU LEU ASN TRP STOP VAL
Explanation:
How many molecules of water and carbon dioxide are needed to make one glucose molecule
Answer:
six molecules of water and six molecules of co2
Dude why is bio so hard please help lol
During cellular respiration, glucose molecules undergo a series of reactions. This process results in the formation of up to 38 molecules of high-energy ATP per each molecule of glucose. Which is the source of the energy stored in these ATP molecules?
chemical energy originally stored in the glucose molecule
potential energy from the difference in the concentration gradients of the cell
kinetic energy generated by the chemical reactions
electric current created during the destruction of electrons in the glucose
Answer:
1.Sugar bonds
2.Transport proteins
3. Digestion
4. Oxidation
explanation
Chemical energy is stored in the bonds of sugar.
The concentration gradient of a substance across the membrane represents potential energy bcz it drives diffusion.Transport proteins aids the diffusion.
Digestion converts chemical energy into kinetic energy used by cells.
When the electrons are destroyed in the glucose,Energy contained in the bonds is released in small bursts,some of it is captured in the form of ATP .'The electrons are transferred to smaller molecules known as electron carriers.The electron carriers take the electrons to a group of proteins in the inner membrane of the mitochondrion,called the electron transport chain.As electrons move through the electron transport chain they go from a higher to lower energy level and are finally passed to Oxygen to form water.The energy released is captured as a proton gradient which powers the production of ATP.
Not 100% sure whether it's the correct answer but the concept is true 100% btw I stand to be corrected
Answer:
A. Chemical energy originally stored in the glucose molecule.
Explanation:
Lol, I feel you. Bio can be a pain, confusing and tricky sometimes.
What does halving mean in biology?
Answer:
plasma half-life
Explanation:
that's it
7. What is the mass and weight of a 10-kg object on earth?
Answer:
Weight= 98 newtons Mass=10kg
Explanation:
Answer:
Weight varies with location depending upon the acceleration due to gravity eg. for a mass m = 10kg on Earth it`s weight is W = mg = 10 x 10 = 100N.
Explanation:
Help please
I couldn't find the right answer
Fossils of tropical plants have been found in the Earth's polar regions. How could this be explained?
A. The continent on which the tropical plants lived changed latitudes over time.
B. The fossils are of arctic species that look like tropical species.
C. Seeds from tropical plants were carried to the polar regions by birds a long time ago.
D. Tropical plants were able to withstand much colder temperatures in the past.
Answer:
A.The continent on which the tropical plants lived changed latitudes over time.
Explanation:
When the Fossils of tropical plants should have found so this explained that the continent where the tropical plants lived changed latitudes over the time. hence, the option A is correct.
Where are the Fossils of tropical plants found?Mainly it should be found in the Svalbard which is situated in the Arctic Ocean. But at the same time it should be found in the Earth's polar regions.
And, it explained the continent where the tropical plants should be lived also it changed the latitudes over time.
Hence, When the Fossils of tropical plants should have found so this explained that the continent where the tropical plants lived changed latitudes over the time. hence, the option A is correct.
learn more about fossil here: https://brainly.com/question/12004410