Answer:
C. Weathering is releasing oxygen from the lithosphere to the atmosphere
Explanation:
i got it right on the quiz
Answer:
Weathering is releasing oxygen from the lithosphere to the atmosphere
Explanation:
just took test
Which of the following is the best example of natural selection?
A)A population of a rabbits decreases in number as some move to another area.
B)The shell of a crab becomes harder over time as a result of being hunted by a predator.
C)A person's muscles become firmer from riding a bike for exercise.
D)A cheetah living in a zoo lives 10 years longer than average.
Answer:
B)The shell of a crab becomes harder over time as a result of being hunted by a predator.
Explanation:
Answer:
D
Explanation:
NEED HELP ASAP!!! Which two conditions are caused by blockage of a blood vessel?
A. hypertension and obesity
B. hypertension and high cholesterol
C. arrhythmia and stroke
D. heart attack and stroke
Answer:
D. heart attack and stroke
Explanation:
The two conditions that are caused by blockage of a blood vessel are heart attack and stroke. Hence the correct option is D.
Both heart attacks and strokes are medical emergencies that occur when a blood vessel is blocked, leading to a lack of blood flow to vital organs. In the case of a heart attack, a coronary artery supplying blood to the heart becomes partially or completely blocked, usually by a blood clot formed on a plaque in the artery's walls.
The blockage reduces or cuts off blood supply to a part of the heart, causing damage to the heart muscle. Similarly, in a stroke, a blood vessel in the brain is either blocked (ischemic stroke) or ruptures (hemorrhagic stroke), leading to decreased blood flow or bleeding in the brain. As a result, brain cells are deprived of oxygen and nutrients, causing damage or cell death.
Hence the correct option is D.
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Sam has a mutation in a gene that affects the function of a transfer RNA (tRNA). Human cells have 20 different types of tRNAs, and each adds a different amino acid to growing peptide chains, which form proteins. Based on what you know so far, would you expect this mutation to affect all proteins produced in Sam's cells? Explain your reasoning.
Answer:
No
Explanation:
The mutation is not expected to affect all the proteins produced in Sam's cells because each protein has a different structure and functions. Proteins are polymers of amino acids and the component amino acid for each protein diffesr. Hence only the proteins whose constituent amino acids include the amino acid being carried by the mutated tRNA would be affected. Others whose constituent amino acids do not include the amino acid being carried by the mutated tRNA would function normally.
What are two possible changes that might occur in a green insect species if the green grass it uses for camouflage turns brown due to drought
I guess evolution could eventually occur causing the insect species to darken but since it's a drought it's probably a short period
another thing is the species is hunted and dies out. their source of camouflage is gone leaving them out in the open for predators
Type of solution involved in osmosis where the concentration of water is higher on the outside of the cell than on the inside.
Answer the prelab questions below with reference to the attached class slides.
1. What is a mutation? (A. change of DNA / B. copy of DNA / C. passing of DNA / D. all listed)
2. Describe the info flow of transcription. (A. DNA --> DNA/B. DNA --> RNA / C. RNA --> protein / D.
DNA --> protein)
3. Describe the info flow of translation. (A. DNA --> DNA/B. DNA -> RNA / C. RNA --> protein / D. DNA-
-> protein)
4. Describe the info flow of expression. (A. DNA --> DNA/B. DNA --> RNA / C. RNA --> protein / D. DNA
--> protein)
5. Describe the info flow of replication. (A. DNA --> DNA/B. DNA -> RNA / C. RNA --> protein / D. DNA-
-> protein)
Answer:
1 . mutation is in a change in a DNA sequence nutrition can visit of DNA copying mistake made during cell division exposure to radiation exposure to Chemicals called motor Jeans Aur infection by viruses
precautions for soil sampling
Answer:
Explanation:
When collecting samples, avoid small areas where the soil conditions are obviously different from those in the rest of the field—for example, wet spots, old manure and urine spots, places where wood piles have been burned, severely eroded areas, old building sites, fencerows, spoil banks, and burn-row areas.
Use a sequence of at least four events to describe some of the ways
that water moves into, through, and then out of the atmosphere.
Please help
Explanation:
together evaporation transpiration sublimation plus volcanally emissions for almost all the water evaporate in the atmosphere that isn't inserted in human activities
which is true in a covalent bond
Answer: A chemical bond that involves electron pairs being shared between atoms is called a covalent bond.
How efficient are the normal commercial solar cells?
Provide a scientific explanation describing whether plants use the by-product of cellular respiration for photosynthesis, and determine the complementary relationship between photosynthesis and cellular respiration in terms of both matter and energy conversions. Claim:
Evidence:
Reasoning:
Rebuttal:
Answer:
Explanation:The process of photosynthesis converts light energy into stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen. ... Cellular respiration releases the energy needed to maintain body temperature despite ongoing energy transfer to the surrounding environment. Photosynthesis is the conversion of light energy into chemical energy by living organisms. The raw materials are carbon dioxide and water; the energy source is sunlight; and the end-products are oxygen and (energy rich) carbohydrates, for example sucrose and starch.
The process of photosynthesis converts light energy into stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen. ... Cellular respiration releases the energy needed to maintain body temperature despite ongoing energy transfer to the surrounding environment. Photosynthesis is the conversion of light energy into chemical energy by living organisms. The raw materials are carbon dioxide and water; the energy source is sunlight; and the end-products are oxygen and (energy rich) carbohydrates, for example sucrose and starch.
what are the uses of four chambers in the heart?
Answer:
lol
The mighty Blu elephante
lol hahahahahahahahahha
Help pls!!!
The strength of the force of
gravity between two objects is determined by which of the following factors? Select all that apply.
A. the masses of the objects
B. the distance between the objects
C. the volumes of the objects
D. the surface area of the objects
An increase in the concentration of greenhouse gases, like carbon dioxide, in the atmosphere can increase the temperature on Earth. How would such an increase in temperature most likely affect Earth's water cycle?
Answer:
Global warming intensifies water cycle
Explanation:
Global warming can dramatically intensify the water cycle because this phenomenon is associated with an increase in temperature, thereby a higher amount of water is evaporated into the air and a higher amount of ice is melted at the poles. Warmer atmospheric air will have a higher amount of water vapor, increasing the frequency and intensity of rainstorms. In consequence, global warming can significantly increase the probability of flooding in coastal communities.
Convert the distance from Kilometers to miles
The survival function that occurs inside of these structures relies on which three items?
A. sunlight, oxygen, soil
B. oxygen, carbon dioxide, water
C. sunlight, carbon dioxide, water
D. water, xylem, soil
Answer:
This question is incomplete as no structure is portrayed, however, the question can be answered based on general understanding. The answer is
C. sunlight, carbon dioxide, water
Explanation:
The structure being referred to in this question is CHLOROPLAST, which is an organelle in plant cells saddled with the responsibility of making food (sugar) via the process of photosynthesis. In order for the photosynthetic process to occur, three major components or raw materials are needed.
The three items that is relied upon by chloroplast in order to perform its photosynthetic function are sunlight, carbon dioxide (CO2), and water (H2O). The CO2 enters the plant from the atmosphere/air while the H2O is absorbed by the roots of plants. The light is absorbed by certain pigments in the chloroplast called CHLOROPHYLL.
11.
Which describes resolution?
A. how many lenses a microscope uses
B. how sharp an image is
C. how much light is needed to see an image
D. how big an image can be
Answer:
DDDDDDDDDDDDDD
Explanation:
HELP!! WILL GIVE BRAINLY!!!
What is the condensed structure of DNA and all proteins associated with that DNA?
A. Chromosomes
B. Genes
C. DNA
D. Deoxyribose sugar
what is the skeletal system
Answer:
Hellooo
Skeletal system is the framework which gives body shape. It consists mainly of bones.
Explanation:
thanks...hope it helps
Phagocytosis occurs in many cells. The protist called an amoeba relies on phagocytosis for nourishment. Take a look at the image. Compare this cell undergoing phagocytosis with the human body. What organs in the human body would be represented by A and B? A) A. skin and B. mouth B) A. mouth and B. stomach C) A. stomach and B. vacuole D) A. mouth and B. digestive system
Answer:
I believe D would be the answer
Explanation:
As in the first part the pseudo podium is engulfing the particle which is more similar to taking food and the next part in the phagosome the particle is engulfed and further the enzymes would be released which would digest the particle hence similar to digestion
Explain a wedge and give 3 examples.
Answer: A wedge is basically an incline plane. Often portable used for many purposes
Explanation: A wedge is a double inclined plane such that the two sloping surfaces taper to form either a sharp edge or a pointed edge. For example, a knife, an axe etc.
In a few cases, the number of inclined planes used can be more than two as well. In such cases, the sloping surfaces generally taper to form either a very sharp or a pointed edge to split or pierce materials. For example, pins, nails etc.
The front end of a boat is shaped like a wedge so that it can easily cut across the flowing water.
The wedge works on the principle of an inclined plane.
The Door Stop Is an example of one,
A Knife is a very thin wedge because it slices through objects
Chisels are used to dig into stone and chip away at it to create sculptures.
Hope this helps Have a awesome day❤️Which of the following best explains why the Sun appears to move across the sky every day?
Group of answer choices
The Sun rotates on its axis
Earth rotates on its axis
The sun orbits around Earth
Earth orbits around the Sun
In 2006, an Ethiopian researcher announced the discovery of well-preserved 3.3 million-year-old fossil of a young female hominid. Refer to Figure (F) below. Considering the Hominid trend of evolution, choose which skull would most likely be that most primitive of the three.
Answer:
Skull three
Explanation:
the backlining is in more, and the jaw moves out more, resembeling that of a more gorilla like creature
It sounds like the description is referring to a hominid with a more pronounced facial structure, similar to that of a gorilla. This may indicate a more primitive stage of hominid evolution, as earlier hominids had more pronounced facial features and a more protruding jaw than later, more advanced hominids.
What is the basic evolutionary changes in the group mentioned ?As hominids evolved over time, their facial features became more refined, and their jaw became less protruding as they adapted to a diet that relied less on tough, fibrous vegetation and more on softer, cooked foods. This adaptation allowed for the development of a larger braincase and a more upright posture, both of which are hallmarks of later hominids such as Homo erectus and Homo sapiens.
It's worth noting that the evolution of hominids is a complex and ongoing area of research, and new discoveries and interpretations of existing evidence may change our understanding of the evolutionary timeline and the characteristics of different hominid species.
Over the course of hominid evolution, several important changes occurred that distinguish hominids from other primates. One of the earliest changes was the development of bipedalism, or the ability to walk on two legs. Bipedalism allowed hominids to free their hands for tool use and other tasks, and also facilitated the long-distance travel needed to explore new environments.
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Question 7 (1 point)
Which structure in the illustration contains the cell's genetic information?
Answer:
its the nucleus
Explanation:
Answer:
B
Explanation:
The chromatin in the nucleus of the cell contains DNA
Should the international community help build nuclear reactors in developing countries to fuel economic growth and provide cheap energy? Explain why or why not.
Can water change the land quickly, slowly, or both? Explain.
Answer: Yes, but slowly
Explanation: Flowing water causes sediment to move. Flowing water can erode both rocks and soil.
Materials can dissolve in water. With enough time, even rocks can be dissolved by water. This process happens really slowly. It may take over a million years to dissolve a rock. It doesn't matter how big the rock is. With enough time, flowing water can dissolve it. Moving water also has the ability to move small pieces of rock and soil. How can water move a rock? Doesn't it need energy? Of course, water gets its energy because it is moving. Moving water has kinetic energy. Things that have more energy can do more work. When water stops moving it will have no energy. It will no longer be able to move the rock and soil. When this happens the rock and soil will settle to the bottom of the calm water. Scientists call this process deposition. Faster-moving water has more kinetic energy. Therefore, it can carry larger particles. It can also carry more particles. What causes water to move faster? The steeper the slope, the faster the water flows. It's just like a toy car rolling down a ramp. It will roll the fastest when the ramp is steep. It will roll slower when the ramp is less steep. If the ramp is flat, it may have no motion. The slope of the land causes water to move faster. If a stream or a river is flowing down a mountain, it will move more quickly. If it is flowing across a flat area, it will move slowly. Some minerals dissolve in water. The minerals are then carried along in the solution. Small particles, such as clay and silt, are carried in suspension. They are mixed throughout the water. These particles are not dissolved in the water. Somewhat bigger particles bounce along the bottom. Particles, such as sand, move in little jumps near the stream bottom. They are nudged along by moving water. The biggest particles move in a different way. They are too big to hop. Instead, they roll along the bottom. Gravel and pebbles move in this way. These particles roll or drag along the bottom of the water.
The cell membrane is different from the cell wall.
The cell membrane...
a. is found in all cells
b. is made of chromatin
c. does not allow substances in or out of the cell
d. produces energy
Answer:
a, it is found in all cells
Explanation:
what are some sources of nitrogen
The main source of nitrogen include: atmospheric precipitation, geological sources, agricultural land, livestock and poultry operations and urban waste. Agricultural emissions show a strong increase due to the application of fertilizer to agricultural soils, grazing of animals and spreading of animal manure.
Brown hair (B) is dominant to blonde hair. What would the PHENOTYPE of a person with a Bb allele combination have? *
Answer:
Heyya!
So, here the person has the Bb allele combination
Their phenotype would be Brown hairThe dominant character is B (brown). So, when it combined with b (blonde), it dominates over it and causes the expression of Brown hair
FOR 70 POINTS
How much has climate change due to pollution caused the ocean to rise in the 20th century?
a.
0.5-2 inches
c.
2 feet
b.
4-8 inches
d.
6 feet
also could u do this
Figure 27-1
Arrow B in Figure 27-1 represents ____.
a.
reflected sunlight
c.
carbon dioxide in the atmosphere
b.
chlorofluorocarbons
d.
solar radiation
Answer:
A
Explanation: