Answers
Answer:
b-prokaryotic cells have single strand of DNA
Explanation:
trust me ;)
Related Questions
which of the following does not require energy?
a. active transport
b. diffusion
c. endocytosis
d. sodium-potassium pump
Answers
i think is D. sodium-potassium pump,i hope that's correct
*active transport is used in the sodium-potassium pump which requires energy because they’re shifting jobs AGAINST their concentration gradient.
what is a membrane potential and how is it generated?
Answers
Answer:
Differences in the concentrations of ions on opposite sides of a cellular membrane lead to a voltage called the membrane potential. Typical values of membrane potential are in the range –40 mV to –70 mV. ... These concentration gradients provide the potential energy to drive the formation of the membrane potential.
Explanation:
Please mark me the brainliest
What molecules are carbon atoms in before the chemical change?
Answers
Answer:
Carbon Dioxide molecules
Explanation:
Help pls help pls question is above
Answers
Answer:
A
Explanation:
Answer:
A. Vitamins seem to cause an increase in ink production
Explanation:
Because the experimental group, the one given vitamins, produces more ink than the control group, no vitamins.
A large bar of solid gold is melted into liquid. The liquid is then poured into
molds to make a number of gold coins. Was this a chemical or physical
change? Explain.
Chemical, because the gold turned into something new and is no longer gold.
Physical, because the gold changed size and shape, but is still gold.
Answers
Answer:
It is physical, the gold is still gold and there has not been any chemical change. Melting, boiling, freezing, etc. are physical changes.
what are 2 organisms who do cellular respiration ?
Answers
Answer: There are two main types of organisms that use cellular respiration: autotrophs and heterotrophs.
Explanation:
Autotrophs are organisms that can make their own food. The types of organisms that are autotrophs include plants as well as some bacteria and protists (such as algae).
Jasmine and Marcus are at the park, and Jasmine makes the following statements. Which of them is an inference?
O The leaves are green.
O The flowers are breathtaking.
O The plant is producing oxygen.
The bush has thorns.
Answers
Which scientist discovered the electron?
Answers
Answer:
J.J. Thomson
Explanation:
He was the first one to discover the electron
Answer:
Thomson
Experiments with beams of negative particles were performed in Britain by Joseph John ("J.J.") Thomson, and led to his conclusion in 1897 that they consisted of lightweight particles with a negative electric charge, nowadays known as electrons. Thomson was awarded the 1906 Nobel Prize
I need help with this
Answers
Answer:
So...
Explanation:
As well as carbohydrates, lipids also contain carbon, hydrogen and oxygen (since they have a hydrocarbon chain and glycerol backbone)
Proteins can also contain nitrogen atoms (amino acids); proteins also have an 'R' group; proteins also are folded structures
The nitrogen, phosphate groups, carbon rings are component phospho(lipids)
Lipids also have fatty acid chains and glycerol
Hope that helps! x
Including Alaska and Hawaii, which additional biomes are found in the United States?
Answers
Answer:
Temperate grassland, desert, temperate woodland, and shrubland, northwestern coniferous forest and temperate forest.
Explanation:
Answer:Temperate grassland, desert, temperate woodland, and shrubland, northwestern coniferous forest and temperate forest.
Explanation:
Fill in the blank.
Most earthquakes take place along tectonic plate _____________.
Answers
Answer:
Most earthquakes take place along tectonic plate edges and along faults.
What is agricultural monoculture and why is that bad for crops?
Answers
NEED HELP QUICK
what differentiates passive transport from active
(Answer choices in picture)
Answers
Answer:
I would say ATP is needed for active transport to occur
What acceleration would be produced if a 25 N force acts on a 5.0 kg mass? (a = F/m) *
Answers
Answer:
5 m/s
Explanation:
Using the formula, the force is 25 N, and the mass is 5 kg.
Simply divide 25/5.0
Then, you would get 5 m/s
I hope this helps.
In the diagram, which represents a catalyst?
Answers
Answer:
where is the diagram???
Answer:
This is the diagram to the question
Explanation:
Which best describes the cell theory?
Scientists know all there is to know about cells, so the cell theory will not change.
As technological advancements are made, the cell theory may change.
A theory, once formulated, cannot be changed.
The development of a synthetic cell has caused the cell theory to change.
Answers
Answer:
2.
Explanation:
Answer:
As technological advancements are made, the cell theory may change.
Explanation:
i did the test tell me if im wrong
Need help quiz is here and this is the only answer I don’t know
Answers
Answer:
activation energy is the answer
if scientists want to solve an environmental problem they are most likely to use ?
Answers
Answer:
Technology
Explanation:
What does a high population density indicate?
O The area is being overfished.
O The species is likely to face extinction.
O There is no other place for that species to live.
O Food supply is high and the number of predators low.
Answers
Answer:
O Food supply is high and the number of predators low.
Explanation:
Population density is defined as the population living in per square mile/km.
High population density indicate that the people living in an area have high food supply and the number of predators low. Predators are responsible to control the population but due to high food supply and low predators, there will be no control in the population and no control in the feeding behavior of the population that leads to High population density.
Hence, the correct option is "Food supply is high and the number of predators low."
Answer:
D; Food supply is high and the number of predators low.
Explanation:
9.. Water enters the atmosphere as water vapor when liquid water ______
on Earth's surface. (12 points!!) i will give a brainliest and a like. please reply fast!!)
Answers
What are the pieces of evidence that the author uses to support his main ideas?
Should we as a country celebrate the Fourth of July in the United States, or is it, as Frederick Douglass claimed, a "sham" to black people in the United States? Discuss your opinion and explain, using personal examples
Answers
Answer:
Jul 3, 2019, The History of Frederick Douglass' Searing Independence Day Oration. So while the U.S. tends to go all out celebrating freedom on the Fourth of July, independence on July 4 are a reminder of the country's hypocrisy on the matter and bloody than are the people of the United States, at this very hour.
Explanation:
Differentiate the 2 types of Natural Resources.
Answers
Answer:
They are....
Explanation:
Biotic and Abiotic --->
*Biotic is all living things such as plants, and animals
*Abiotic is all Non- living things such as water, glass, oil, etc
Hope this helps!
The two types of natural resources are biotic and abiotic. Biotic resources are ones derived of organic origins, or may be grown, that are gathered from the biosphere. Abiotic resources are nonliving resources, like metals, water, or oil.
I hope this answers your question! Happy learning, friend :)
Are most environmental issues local problems or global problems?
How can or will this affect the way we try to solve these issues?
How are environmental issues becoming more complex?
What about the history of environmental studies can inform us about our current environmental issues? Why is it important to understand the past to help solve current and future environmental problems?
Answers
Answer:
Most environmental issues are problems on a global scale, these include but are not limited to, global warming, ozone pollution, greenhouse gases and many more issues.
This affects the way we try to solve these issues because if we dont all play a part to help change the way things are going, then they will only get worse. We have to come together as a whole.
Unlike individual efforts, different countries can cooperate and implement legislation which limitates all the countries in the globe,solving environmental issue more efficiently.
What is the three letter code found in mRNA?
A. Thymine
B. Cytosine
C. Codon
D. Anti-codon
Answers
Answer:
D
Explanation:
What is the main function of glycolysis in cellular respiration?
O A. To make water molecules
B. To make glucose molecules
C. To breakdown water molecules
D. To breakdown glucose molecules
Answers
Answer:
The answer is B. To make glucose molecules
what is the function of the fatty acid tails?
Answers
Answer:
Phospholipids are able to form cell membranes because the phosphate group head is hydrophilic (water-loving) while the fatty acid tails are hydrophobic (water-hating).
Explanation:
I
8. a) Describe how water is important to plants in terms of (3 points):
i) making food in plants
ii) the plant's shape
i) hydrolysis and dehydration
HINT: Think about:
i) production of glucose
fi) water in cells
fli) breaking and creating bonds
Answers
Answer: Because
Explanation:
Water is important to plants because without the water how would a plant survive? The water helps the plant grow and so the plant would be able to continue to produce what it needs to produce.
what is the process of transferring sea water to fresh water?
Answers
Answer:
Desalination
Explanation:
desalination is a technique where the excess salt are removed from salt water or brackish water.
Question 10 of 10 Which molecule is used up in photosynthesis?
A. Carbon dioxide
B. Sugar
C. Oxygen
D. Nitrogen
Answers
Answer:
A Carbon Dioxide ( CO2)
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. ... Then, via respiration processes, cells use oxygen and glucose to synthesize energy-rich carrier molecules, such as ATP, and carbon dioxide is produced as a waste product.
Autotrophs make glucose during _____.
Answers
Answer:
photosynthesis (autotrophs are mainly plants )