Which activity demonstrates chemical weathering? A grinding of talc into a powder
B freezing of water in the cracks of a sandstone sidewalk
C dissolving of limestone by acid rain
D abrasion of a stream bed by tumbling rocks
8. The central Dogma of Biology states:
a. DNA proteins ORNA
b. RNA O Proteins DNA
c. DNA RNA proteins
d. DNAO RNA mRNA
Answer:
Answer is C.
Explanation:
I hope it's helpful!
Will give brainliest
4. A student described a wetland ecosystem in the chart below.
Wetland Ecosystem
Abiotic Factors
Description
Water Depth
Shallow
Salinity
Fresh water
Soil
Very wet mud
Sunlight
Sunlight filtered through
trees
What type of ecosystem was the student most likely describing?
A. Marsh
B. Swamp
Forest
D. Estuary
Answer:
Boys preparing for the chinese civil sevice examination had to memorize Confusian texts before learning what they meant. Teaching now downplays such memorization. Is there any educational value for students to memorize poems, texts, etc?
hdbdbhd
Monitoring a population's age structure plays an important role in successful wildlife management. Which of the following scenarios can be an indicator of overexploitation in fish?
A)
fish catch not reaching older ages
B)
decline in fish catch
C)
both a and b
D)
none of the above
Answer:
d none of the above
Explanation:
because the answer is not one of the a,b,c,d
Answer:
C) both a and b
Explanation:
You're exploiting fish by catching them at a young age. A decline in fish catch can be a consequence of fish exploitation.
Describe the difference between codominance and incomplete dominance. Give 1 example of each.
To fell things you need energy True or false
Answer:
false
Explanation:
Answer:
Yes, you use energy to feel things becasue you move your muscles
Explanation:
If this helped you please mark brainiest.
What is the role of oxygen in photosynthesis and in cellular respiration?
~ Oxygen is used in photosynthesis to produce glucose and is released during cellular respiration.
B Oxygen is released in photosynthesis and used in cellular respiration to produce energy.
© Oxygen is combined with carbon dioxide in photosynthesis to release energy and released from carbon
dioxide during cellular respiration.
DOxygen is released from glucose during photosynthesis and combines with carbon dioxide to produce
energy during cellular respiration.
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Answer:
a
Explanation:
oxygen aids in glucose production through respiration and supports the organism since glucose is the food for plants
The role of oxygen in photosynthesis and in cellular respiration - B Oxygen is released in photosynthesis and used in cellular respiration to produce energy.
Role of oxygen1. In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. Oxygen is released as a byproduct.
6CO₂ + 6H₂O+ energy → C₆H₁₂O₆ + 6O₂
2. In respiration, the product of photosynthesis, glucose and oxygen are converted into carbon dioxide, water, and energy and oxygen is used to break down glucose
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O+ energy
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If humans replace the forest with a factory, how will this affect the carbon cycle in the
area?
The forest is defined as a carbon sink, and with its removal, there will be less carbon
released into the atmosphere.
The forest is defined as a carbon source, and with its removal, there will be less carbon
released into the geosphere.
The forest is defined as a carbon sink, and with its removal, there will be more carbon
released into the atmosphere.
The forest is defined as a carbon sourceand with its removal, there will be more carbon
released into the hydrosphere.
Answer:
The forest is defined as a carbon sink, and with its removal, there will be more carbon
released into the atmosphere.
Explanation:
Which of the following is NOT a cartilage we find in the body?
Dense cartilage
Hyaline cartilage
Fibrocartilage
Elastie cartilage
please help ASAP i’ll give brain
Answer:
27. f 28. d 29. b 30. a 31. g 32. h
Explanation:
what is the S.I unit of speed , time
Answer:
Second!
Explanation:
speed and velocity are both measured using the same units.The S.I unit of distance and displacement is the meter. The S.I unit of time is the second. The S.I unit of speed and velocity is the ratio of two-the meter per second!
I hope it's helpful!
Answer:
metre per second
Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour.
Explanation:
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Summarize sexual reproduction in plants. I need help please!!
Answer:
Plant reproduction is the development of new offspring that can be achieved through sexual or asexual reproduction in plants. By the fusion of gametes, sexual reproduction creates embryos, resulting in offspring genetically distinct from the parent or parents. Asexual reproduction creates new individuals, genetically similar to the parent plants, without the fusion of gametes.
Explanation:
Different cell organelles perform different functions. Which cells would
most likely have the largest vacuoles?
What role have nitrates and phosphates played in damaging Muddy Creek?
Answer:
Nitrates and phosphates lead to eutrophication and anoxia in the creek which caused aquatic animals to die and damaged the creek.
Explanation:
Nitrates (NO3-) are chemical compounds that contain nitrogen and oxygen molecules. They are salts that are commonly found in fertilizers and are soluble in water. Phosphates are also compounds that are used in agricultural processes.
Nitrates and phosphate found in water are usually from plants that have been washed off by rain water and also from vehicles' exhaust.
When there are abnormally high levels of nitrates and phosphates in water, it becomes difficult for aquatic animals to survive. In bodies of water, the nitrates and phosphates become sources of food to algae and other plants, this causes them to become over stimulated, and lead to Eutrophication (a high concentration of nutrients) and Anoxia (lack of oxygen).
This causes the fishes to run out of oxygen and die. Then the water begins to change color (milky white or green), give off an offensive odor and gradually turns into a swamp and eventually a meadow
What part of speech is the word mission in the sentence below?
My mission was to get the cat out of the tree safely.
noun
verb
adverb
adjective
If purple flowers are dominant in a plant and white flowers are recessive in that plant, then when purple-flowered
plants with two dominant genes are mated with white-flowered plants with two recessive genes, the first
generation of offspring should have
A
100% white flowers
B
75% purple flowers and 25% white flowers
с
50% purple flowers and 50% white flowers
D
100% purple flowers
im pretty sure it would be c
If purple-flowered plants with two dominant genes are mated with white-flowered plants with two recessive genes, the first generation of offspring should have 100% purple flowers.
Genes are defined as units of inheritance that occur in the chromosomes. Usually, genes occur in pairs called alleles and these alleles control the expressed traits (phenotype) of an organism.
In this case, we have a flowering plant having a dominant gene for purple flowers (R) and a recessive gene for white flowers (r). Using a punnet square, we can see that the first generation will have all purple flowers since it is the dominant gene as shown.
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A vacuole is a membrane-bound sac that plays a role in the storage and
the release of cellular products. How do the vacuoles in animal cells differ
from vacuoles in a plant cell?
PLEASE HELP
plant cell: they are prominent,one or more.
animal cell: vacuoles if any, are small and temporary
hope it helps you!!
How important do you think it is for you personally to avoid coronavirus infection? EXPLAIN YOUR ANSWER PLS .
Answer:
I think it is extremely important to avoid personally getting the virus
Explanation:
I love visiting my grandparents, and while I have a huge chance of fighting it off, it could take my grandparents lives. As well as anybody else I meet. Its not about me. its about everyone.
Plants exchange carbon dioxide, water, and oxygen with their surrounding environment through openings in their called O A. leaves, stomata B. stems, sori OC leaves, xylem D. roots, guard cells
What causes the stoma to open?
A. When the guard cells are full of water, they become stiff and hold
the pore open.
B. When the guard cells get covered in wax, they become limp and
the pore opens
C. When the guard cells are empty, they become limp and the pore
opens.
D. When the guard cells inflate with oxygen, they become stiff and
the pore opens.
A. When the guard cells are full of water, they become stiff and hold
the pore open.
Two guard cells make up the stomata. The walls of these cells are thicker on the inside than they are on the outside. Stomata open when they take in water and close when they lose water due to the unequal thickness of the paired guard cells.When stomata open, they release water vapor and other gases into the atmosphere, including oxygen.A. When the guard cells are full of water, stoma become stiff and hold the pore openFor more information:
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What causes the phases of the Moon?
The moon's light and its rotation on its axis.
The moon's revolution and its projected light.
The reflected light of the sun and the moon's revolution around Earth.
The revolution of the Earth around the Sun.
In what way is surface area more important for cells than volume?
Answer:
As a cell grows in size, the surface area gets bigger, but the volume gets bigger faster. Thinking about this as a ratio (division), the volume is the denominator and the surface area is the numerator. If the volume is getting very big, then the ratio itself will be getting very small.
What is the role of operons in prokaryote gene expression?
Blocks of DNA called operons are used to encode proteins that are required for a certain task or that are part of the same metabolic pathway.
What is operon?Operons are frequently found in bacterial genes. An operon is a collection of genes that all share a single promoter during transcription.
There are regulatory DNA sequences in every operon, and these sequences serve as binding sites for regulatory proteins that either encourage or inhibit transcription. Genes involved in lactose metabolism are found in the lac operon of E. coli. It only expresses itself when lactose and glucose are both absent.
A lactose sensor is the lac repressor. When lactose is present, it ceases to function as a repressor, blocking transcription of the operon in its usual state. Through its isomer allolactose, the lac repressor indirectly detects lactose.
Therefore, Blocks of DNA called operons are used to encode proteins that are required for a certain task or that are part of the same metabolic pathway.
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List the ways how you can help make your commumity safe and healthy.
1.
2.
3.
4.
5.
How much water would have to be displaced for the Lucia to float?
Different types of cells can have certain organelles and structures in common. Which types of cells definitely contain cell walls?
SC.912 L 14.3
O plant and animal cells
0 plant and eukaryotic cells
o plant and prokaryotic cells
animal and eukaryotic cells
Answer:
plant and eukaryotic cells (B)
Explanation:
animal cells have a cell membrane but no cell wall and prokaryotic organisms lack a nucleus or any other membrane bound cell organelle.
Plant and prokaryotic cells definitely have a cell wall. So, the correct option is C.
What is Cell wall?Cell wall is defined as the structural layer that consists of polysaccharides and is present outside the plasma membrane which can be rigid, rigid and flexible. This provides protection to the cell from external factors that may be harmful to the cell and also provides structural support.
Plant and prokaryotic cells definitely have a cell wall. The cell wall of a prokaryotic cell is present under the capsule while the cell wall of a plant cell is a specialized form of extracellular matrix that surrounds each cell of a plant. This provides structural support to the cell and protects the cell against infection and mechanical stress
Therefore, the correct option is C.
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IF most of the energy we use on earth comes from the sun –how does that energy (light and thermal) end up
-----------------------------------------------------------------------------------------------------------
As ____energy in our food
As ____energy of wind or moving water
As ____energy that powers our lights
As ____energy when we move around
thanks so much!
Answer:
1: Chemical Energy
2: Kinetic Energy
3: Electrical Energy
4: Mechanical Energy
Explanation:
1: The energy held in food is called chemical energy. It is a form of potential energy held within chemical bonds between atoms.
2: When flowing water is captured and turned into electricity, it is called hydroelectric power or hydropower. There are several types of hydroelectric facilities; they are all powered by the kinetic energy of flowing water as it moves downstream.
3: The power for lights and stuff is Electrical Energy, ofc :]
4: The chemical energy in the food gets changed into the mechanical energy of moving muscles.
Hope this helps!! :D
The correct options to the question will be:
Chemical energy.Kinetic energy.Electrical energy.Mechanical energy.It should be noted that the energy held in food is called chemical energy. It is simply a form of potential energy that is held within chemical bonds.
The energy of the wind or moving water is kinetic energy. The energy that powers out light is electrical energy while the energy that we use when we move around is mechanical energy.
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Which statements describe functions of the backbone? Check all that apply.
It supports the body’s weight.
It helps to break down food.
It surrounds and protects the brain.
It replaces the spinal cord in vertebrates.
It allows for flexibility and movement.
It helps regulates water balance.
Answer:
1 and 5
Explanation:
i got it right on edge! if thats not your answer I'm sorry :)
Answer:1,4,5
Explanation:
is it true The more I interact with someone the more likely it is I’ll like that person?
Answer: it depends
Explanation:
if you interact with them more, you get to know them. If you find them annoying or mean, then you will dislike them. But if the person yo are interacting is bery friendly and nice, you will most likely like that person. If thenperson you are interacting is hot and cute, then will have a crush on that person.