Answer:
Vacuole, think of it as a vacuum
Explanation:
Which characteristics or structures from the list are found in plant cells? Select all that apply.
nucleus
chloroplast
irregular shape
cell wall
tiny storage vacuoles
cell membrane
Plz help :X
Answer:
nucleus,chloroplast,cell wall, cell membrane
Explanation:
Do neurons create synaptic connections between endocrine glands?
yes because i know it. it is form
In the equation shown, what are the reactants? 2H2-02 --> H2O
Hydrogen atoms
Hydrogen and oxygen molecules
Water molecules
Ice crystals
Answer:
Hydrogen and oxygen molecules
Explanation:
List the 3 reasons why mitosis occurs
Mitosis is a cell division method a part of the cell cycle that is essential for growth and development, repair and replacement, and asexual reproduction.
What is mitosis?Mitosis is a type of cell division method that occurs in all the somatic cells and plays a crucial role in living organisms. They produce daughter cells to increase the cell number and to aid in the growth and development.
They replace and repair the damaged cells in the body and also is a form of asexual reproduction where the parent cell is divided to form a new daughter cell with the same ploidy.
Therefore, mitosis is essential for growth, repair, and asexual reproduction.
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What does DNA replication ensure?
Answer:
To ensure that mistakes, or mutations, are not introduced, the cell proofreads the newly synthesized. Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.
Explanation:
In one sentence explain why carbon dioxide is considered the most important greenhouse gas, although it traps much less heat than other greenhouse gases such as methane, nitrous oxide and CFCs.
Answer:
Because plants need carbon dioxide more than any other compound/element. Also, heat doesn't make much of a difference in a plants growth or production. It's sunlight that makes a difference.
Carbon dioxide is considered as the most important greenhouse gas due to its abundancy in the atmosphere.
• In the atmosphere, climate change is mainly an issue due to high concentration of carbon dioxide in the atmosphere.
• This overload is because of the burning of fossil fuels and burning of forests.
• Apart from carbon dioxide there are many heat trapping gases like water vapor and methane, however, carbon dioxide is putting us at greater threat due to irreversible modifications it takes place if it continues to gather at such rate in the atmosphere.
• Carbon dioxide has contributed more to climate change than any other greenhouse gases between 1750 and 2011.
• The other gases like methane possess more potent heat trapping tendency per molecule in comparison to carbon dioxide, however, they are far less in comparison to carbon dioxide in the atmosphere.
• The tendency of carbon dioxide to remain in the atmosphere for longer durations in comparison to other heat trapping gases makes it the most potent greenhouse gas.
Thus, the abundancy of carbon dioxide in the atmosphere makes it the most powerful greenhouse gas in comparison to other greenhouse gases.
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What theory’s/ideas challenge natural selection? In other words, what disproves natural selection?
Answer:
Natural selection needs some starting material, and that starting material is heritable variation. For natural selection to act on a feature, there must already be variation (differences among individuals) for that feature. Also, the differences have to be heritable, determined by the organisms' genes.
If your body is capable of making only certain amino acids, how do we get the essential amino acids we need?
Answer:
Essential amino acids cannot be made by the body. As a result, they must come from food. The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
Explanation:
Essential amino acids are available to the body through diet.
What are amino acids?Amino acids are the key units in protein formation. They are the building blocks in determining protein structure.
Amino acids are amphoteric molecules which means that they contain dual functional group - amino and carboxylic acid.
There are twenty different amino acids present. Amino acids are classified into four main groups:
Non polar amino acidsPolar but charged amino acidsNegatively charged amino acidsPositively charged amino acidsAmino acids are crucial in the determination of genetic code. They are also important in transcription and translation process.
Amino acids are joined together in large number and form polypetides through peptide bond formation.
Based on the nutritional requirements amino acids are classified into two types:
Essential amino acids - amino acids which cannot be synthesized by the body and thus need supplementation through diet.Non essential amino acids - amino acids which can be synthesized by the body.Therefore, amino acids are important in the biochemistry of proteins and several biochemical processes.
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What characteristics does a cell membrane have that the plastic bag does not have?
Answer:
The characteristic that differentiates the cell membrane from a plastic bag is that the membrane is permeable to the passage of substances.
Explanation:
Cell membrane covers the cell and is predominantly formed by a double layer of lipids, which gives it the main characteristic of behaving as a semi-permeable membrane. This indicates that the membrane allows the entry of some substances and prevents the entry of others.
Unlike the cell membrane, a plastic bag is impermeable, preventing the passage of water or any other substance.
1. How much force accelerate a bicycle and rider with mass 60 kg at 1.5 m/s?
Answer:
Force, F = 90 N
Explanation:
Given that,
Mass of the bicycle and rider, m = 60 kg
Acceleration of the bicycle and rider, a = 1.5 m/s²
We need to find the force acting on the bicycle and rider to accelerate. Let it is F. Its force is given by :
F = ma
F = 60 kg × 1.5 m/s²
F = 90 N
So, the force acting on the bicycle and rider is 90 N.
Which statement about the structure of organic molecules is true
1. DNA contains fatty acid chain
2. Lipids are composed of Amino acids
3. Proteins are composed of nucleotides
4. Carbohydrates contain monosaccharide units
Answer: The answer is D
Explanation:
The statement which is true about the structure of organic molecules is as follows:
Carbohydrates contain monosaccharide units.Thus, the correct option for this question is D.
What do you mean by Organic molecules?Organic molecules may be defined as those molecules that are correspondingly made of carbon and hydrogen. It can also include other elements like oxygen, sulfur, nitrogen, etc. It must contain carbon atoms covalently bonded to hydrogen atoms (C-H bonds).
DNA possesses monomeric units known as nucleotides. Lipids are the derivatives of fatty acids. While proteins are composed of building blocks that are known as amino acids.
On the other hand, carbohydrates are derived from monosaccharide units that are togetherly held by glycosidic linkage.
Therefore, carbohydrates contain monosaccharide units is a statement that is true about the structure of organic molecules. Thus, the correct option for this question is D.
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The ribosome-covered structure found in the cytoplasm of a cell is called the
А.
Golgi apparatus
B
rough endoplasmic reticulum
lysosome
smooth endoplasmic reticulum
Answer: rough endoplasmic reticulum
Explanation:
What are 2 things that can be done to encourage sustainable resources for Earths human population
Answer:
Educate them and show the benefits of sustainable resources
Explanation:
Why might a company decide against using hydroelectric Energy as an alternative energy source
A. Gathering it requires pulling from unclean sources
B. Gathering it creates noise pollution for surrounding areas
C. Gathering it releases carbon dioxide gases into the air
D. Gathering it can have a negative affect on natural habitats
The company's decision against using hydroelectric Energy as an alternative energy source might be Gathering it can have a negative affect on natural habitats.
Why is hydroelectric power not a good energy source?Hydropower can also cause environmental and social problems. Waterholes drastically change the landscape and rivers they are built on. Dams and reservoirs can decrease river flows, raise the water temperature, degrade water quality and cause sediment to build up. This has negative impacts on fish, birds and other wildlife.
Thus, the correct option is "D".
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enzymes are an example of which main class of organic compounds.
(carbohydrates, lipids, proteins, or nucleic acids
Answer:
Proteins
Explanation:
Enzymes are an example of a class of organic compounds called proteins.
PROTEINS:
Proteins are one of the four major biological molecules in nature (others being carbohydrates, lipids and nucleic acids). Proteins play vital roles in living organisms, which includes regulating biochemical reactions, repair of structures etc. Enzymes are biological catalysts that helps to regulate the rate of a reaction. Enzymes are proteinous in nature i.e. they are made of proteins. Therefore, enzymes are an example of a class of organic compounds called proteins.Learn more at: https://brainly.com/question/22241855?referrer=searchResults
HELP LOTS OF POINTS HURRY IM ALMOST OUT OF POINTS!!!
Which of the compounds would the plant require as outputs for photosynthesis? Click on all options below that are considered outputs/products (things the plant exports during photosynthesis). (Choose up to three. Choosing all options will result in an incorrect answer)
Oxygen
Carbon Dioxide
Water
Glucose
Sunlight
The differences between two molecules include the type of sugar that forms a section
of the molecules and the identity of one of the four nitrogenous bases that make up
another section of the molecules. These two molecules are -
A proteins
B lipids
C nucleic acids
D complex carbohydrates
100 POINTS !
Match the numbers on the picture of the cell with the words below.
Cytoplasm
Golgi Apparatus
Nuclear Pores
Rough Endoplasmic Reticulum
Vacuole
Cell Membrane
Ribosome
Nucleus
Nucleolus
Smooth Endoplasmic Reticulum
Chloroplast
Chromatin
Mitochondria
Nuclear Envelope
Microtubule
Cell Wall
Answer:
1. Nucleus
2. Nuclear Envelope
3. Nucleolus
4. Chromatin
5. Nuclear Pores
6. Ribosome
7. I don't know sorry
8. Smooth Endoplasmic Reticulum
9. Cytoplasm
10. I don't know sorry
11. Cell wall?
12. Mitochondria
13. I don't know sorry
14. Rough Endoplasmic Reticulum
15. Ribosome?
16. I don't know sorry
Explanation:
I don't know some of these but I hope this helps! :D
Clay 30%, Silt 60%, Sand 10%
What would it be classified as?
( I need some sort of help on my asignment I’m a bit young and I just really need to pass this the question is )
What’s the purpose of seeds?
a. Reproduce
b. Feed plants
c. Look nice
d. Drink water
Answer:
A reproduce
Explanation:
Answer:
I think it is Reproduce.
Explanation:
I looked it up on google hope it helps
Which of the following is not the wave of the future in the medical field?
O robots
O cameras
O computers
O engines
Please help!!!!!!
Look at the images. Considering the properties of prokaryotic and eukaryotic cells you've learned about, what kind of cell is this?
Answer: 1. prokaryotic 2. eukaryotic 3. eukaryotic 4 prokaryotic
Explanation:
WHAT ARE EUKARYOTES AND PROKARYOTES?
Eukaryotes are living organisms that possess a membrane-bound nucleus while prokaryotes are living organisms that do not possess a membrane-bound nucleus or organelles.From the image attached to this question;
Cell type A is a bacterial cell with no visible nucleus present. Hence, it is a prokaryotic cell. Cell type B is a plant cell with nucleus, cell wall and chloroplast. Hence, it is an eukaryotic cell. Cell type C is a human cheek cell with visible nucleus. Hence, it is an eukaryotic cell. Cell type D is a vibrio bacterial cell with only a visible cell wall. Hence, it is a prokaryotic cell.Learn more: https://brainly.com/question/21196976?referrer=searchResults
Pls help i dont understand :( will give Brainliest + 25 points!!
Answer:
It’s the last one (reducing competition among the two frogs for resources)
The Ring of Fire is _______. a. the arc stretching from New Zealand to the Aleutian Islands b. composed of over 75% of the world’s active and dormant volcanoes c. can be found along the coast of North and South America d. all of the above
Answer:
The correct answer is D) all of the above
Explanation:
Abrianna placed a ball of clay on a table. She flattened it into the shape of a disc. She turned to Hanna and said, "Look, I have changed the weight of the clay!" Hanna responds, "No, the weight has not
changed. The mass has." How would you respond? Write your response in your
Science Journal.
Answer:
Explanation:
Both would be right if some of the clay was removed.
Since there is no mention of anything being removed, both are incorrect. There is always the same mass when the shape has been altered.
The inner and outer planets, Mercury and Venus, Mars, Jupiter and Saturn, were identified by ancient Babylonian astronomers between 2000 to 1001 BC. It was not until the 1600's that Galieleo and Cassini, using telescopes, discovered what? (can not find science)
Answer:
The moons of Jupiter and Saturn
Explanation:
I did it on usa test prep
I NEED HELP ON KEY CONCEPT!!
PLEASE HELP ME PLEASE :)
Answer:
6CO2 + 6H2O → C6H12O6 + 6O2 = A+B--->C+D
Question 16 of 30
After a hurricane, a small group of seabirds flew off course and formed a new
population. Gene flow between the new population of seabirds and the
original one stopped, and the two populations evolved differently.
What process first caused the seabird populations to evolve differently?
A. Natural selection
B. Genetic drift
C. Reproductive isolation
D. Geographic isolation
Answer:
It’s B genetic drift
Explanation:
The group of birds separated from one another which led to different evolution for both groups of birds because of the new environment
Difference between direct and indirect effect
Direct effects, as the name suggests, while not manipulated or communicated by a third party, deal with the direct influence of one entity on another. Indirect effects can be described as the influence, mediated or passed on by a third, of one organism or species on another.
