Answer:
It has four chambers.
Explanation:
The structure of human heart has four-chambers consist of two atrium and two ventricles. The right atrium receive blood from the whole body, while the ventricles pump blood to the whole body. The right atrium receives blood from the superior and inferior vena cavas. This blood then moves to the right ventricle where it is pumped to the lungs for purification or to dispose off carbondioxide and loaded the blood with oxygen. The left atrium receives blood from the lungs while the left ventricle pumps this blood to all parts of the body.
Please help it’s urgent!!!! For these two questions
Answer:
C - Blanket of clouds that cover the sky
C- Rain freezing before it hits the ground
hope i helped
Which is an example of a solute?
soil suspended in water
sugar that is dissolved in water
O water that dissolves salt
O water with undissolved soil
Answer:
I believe its the first one
Explanation:
I've done an experiment on this and water dissolves in salt.
Why are bacteria a necessary part of the nitrogen cycle?
Other living things cannot use atmospheric nitrogen.
Other living things cannot use the nitrogen in plants.
Bacteria are the main nitrogen reservoir.
Bacteria are the main nitrogen transpirators.
Answer: The answer is... (A) Other living things cannot use atmospheric nitrogen
Explanation:
Other living things cannot use the nitrogen in plants except bacteria which has the ability to use and convert nitrogen.
Role of bacteria in Nitrogen cycle
Atmospheric Nitrogen gas can't use by the plants directly but the bacteria are able to use the atmospheric nitrogen and convert it in available form to the plants.
The decomposers, soil bacteria and fungi break down proteins in dead organisms and animal wastes, releasing ammonium ions which can be converted to other nitrogen compounds which make the bacteria an important part of nitrogen cycle.
In conclusion, bacteria is the only organism which can use nitrogen.
Learn more about bacteria here: https://brainly.com/question/1321790
(1 point)
What is the independent variable?
Bryan conducted an experiment with 4 bean plants. They were placed next to one another on a
sunny windowsill
. He gave each plant different types of water, ensuring to give them the same
amount. The plants were given tap water, distilled water, flavored water, and carbonated water.
Juan made the following observations after 3 weeks. Based on the results, Bryan concluded
that tap water is not good for plants. How can Bryan change his experimental design to improve
the validity of his results?
The two types of Earth's crust are oceanic and ______________________. *
A. convergent
B. geothermal
C. divergent
D. continental
Answer:
D
Explanation:
What are the alternate energy sources that are starting to replace the use of coal in the U.S.?
Answer:
Wind and solar power!
Explanation:
Consider the contents of your stomach 1 hour after eating this meal. What, if anything, ha been digested? What, if anything, has been absorbed? Constituents What happens to_____ in the stomach? Digested or of food Absorbed? CarbohydratesFatsProteinsVitamins SucroseWater
Answer:
Proteins
Explanation:
Of all the food types, Protein has the shortest digestion process. The digestion and absorption of protein starts in the stomach where protein is converted to amino acids and other polypeptides by the enzyme pepsin and more amino acids are produced in the pancreas by the trypsin. Note that much of these amino acids are not absorbed by the body, they are excreted through the urine as uric acid.
Easy 10 points , look at the picture and answer the question
b. Name one advantage and one disadvantage of replacing wild forestland with
cropland.
Answer:
Advantage: Having the space and land to make an economy and to grow crops
Disadvantage: Destroying animal, and wildlife habitat and reducing O2 productions from trees
Explanation:
Why?
Deforestation can eliminate many living organisms and take down trees, which produce oxygen. On the plus side, the land allows for humanity to settle in, farm and start an economy.
One advantage is having the space and land to make an economy and to grow crops. One disadvantage: Destroying animal, and wildlife habitats and reducing O2 production from trees.
What is deforestation?
Many living things can be wiped out by deforestation, which also removes trees that produce oxygen. On the bright side, the land enables human settlement, agriculture, and the emergence of an economy.
The consequences of deforestation are increases in greenhouse gas emissions, which contribute to climate change, desertification, soil erosion, fewer crops, flooding, and a myriad of issues for indigenous people.
Therefore, having the room and acreage to build a business and raise crops is one benefit. One drawback is the destruction of wildlife and animal habitats, which lowers tree O2 output.
To learn more about deforestation, refer to the link:
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4. In what temperature range is amylase active?
Answer: 40 degrees c
Explanation:
it shows a spike so the most active.
Which statement about the relationship between interphase, the cell cycle, and mitosis is true?
A. The cell cycle and interphase make up mitosis.
B. Interphase and the cell cycle are parts of mitosis.
C. Mitosis and interphase are parts of the cell cycle.
D. Mitosis and the cell cycle are parts of interphase.
Answer: C.Mitosis and interphase are parts of the cell cycle.
Explanation:Interphase is actually the longest stage of the cell cycle. This is the point where the cell prepares itself for division. It is composed of 3 phases:
G1 phase - is when the cell starts to grow and copies its organelles.
S phase - it starts making copies of its DNA and makes a copy of its centrosome.
G2 phase - continues to grow and produces the proteins or enzymes that will be used in the process.
After the stage of interphase, the cell will enter its M phase or mitosis in the case of body cells. Mitosis is the process of cell division.
Answer:
c
Explanation:
mitosis and interphase are part of the cell cycle
Which is a component of the biosphere?
A.
argon
B.
permafrost
C.
mountains
D.
bacteria
Answer:
D. Bacteria
Explanation:
The biosphere is the layer of the Earth where all living organisms live and interact with each other. The biosphere is a broad concept that includes all the regions of the Earth where an organism can live or where organic material can exist. Since bacteria is a living microorganism, it is considered a component of the biosphere.
Chuck consumes a meal that contains protein. How will chucks body use this protein
Answer:
Your answer is A). Humans do not undergo photosynthesis, and proteins cannot be transformed into carbs.
Chucks stomach will break down protein which will be absorbed and used to build and repair tissues and is denoted as option A.
What is a Protein?
This is a biological compound which comprises of amino acids and are involved in various metabolic processes.
The stomach breaks it down into amino acids which is absorbed into the bloodstream and used for replacement of worn-out tissues.
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*
All cells formed from pre-existing cells
false
true
Answer:
TRUE is the answer.Explanation:
This is because "All cells form from pre-existing cells" is part of the cell theory.A German doctor, Rudolf Virchow found out about this phenomenon and proposed this fact to other scientists.When it was proved to be true, it was made to be a part of the cell theory.So, consequently, the answer would be true.The answer is True.Hope this helped,
Kavitha Banarjee
2.
What evidence do you have from the sim? Be sure to include temperature of samples.
My evidence from the sun is that Sample A...
3.
Explain what you discovered in the sim about why food coloring spreads faster in
warmer water.
This can explain why the food coloring spread faster in warm water because ...
3. In the sim molecules moved faster when it was warm and slower when it was cold. This can explain why the food coloring spread faster in warm water because the molecules were moving faster causing the food coloring to quickly spread through out the water.
Sorry if its wrong
The food color mixes more easily with the warm water than with the cold water, as the warm water has less density than the cold water, which allows the diffusion of the color in the water.
What role does food coloring play in the lives of organisms?It has numerous negative effects on the organism, including allergic reactions to certain food coloring, increased hyperactivity in children, disruption of the endocrine system, negative effects on reproduction and development in animals, and so on. Aside from that, the animals may exhibit symptoms of liver and kidney failure due to its toxicity.
Hence, the food color mixes more easily with the warm water than with the cold water, as the warm water has less density than the cold water, which allows the diffusion of the color in the water.
Learn more about the food color here.
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What is an example of a body fossy
Answer:
do u mean fossil? If so then Some examples of body fossils include bones, teeth, feathers, or claws. Body fossils are fossils that come from the organism itself. The dinosaur
If Adam is walking to his car in the snow and feels himself starting to slip and fall, he is using what sensory pathway to convey this information to the level of his conscious awareness?a. posterior column pathway b. corticospinal pathway c. anterior spinothalamic tract d. lateral spinothalamic tract
Answer: A (POSTERIOR COLUMN PATHWAY)
Explanation: Corticospinal pathways are involved in motor pathway whereas others are involved in sensory. however, lateral spinothalamic pathway carry sensations like pain and temperature.
But,the posterior column and the anterior spinothalamic carries the sensation of touch.
The anterior spinothalamic pathway carries light touch while the posterior column carry deep touch and sensation.
Now from the question,fall and slip vibration and movement brings about the activation of posterior column, However,it carries information to the conscious center of the cerebrum whereas the spinothalamic pathway carries information to the thalamus in the brain.
According to the Law of Superposition, what layer is the oldest rock layer?
the last layer deposited
the first layer deposited
the second layer deposited
the intrusive deposition
Answer:
the first layer
Which is not a part of the cell theory?
a. cells are the basic building block for living things.
b. all living things are made up of one or more cells.
c. animal cells are more advanced than plant cells.
Answer:
c
Explanation:
Answer:
The answer is C.
Explanation:
The cell theory has three parts; all living things are made of cells, cells are the basic units of life, and any cell comes from a pre-existing cell. So with these points, you can see that C is not a part of the cell theory.
Hope this helps :)
1. Use the codon chart to write the amino acid that corresponds to each codon found in mRNA
ССС
CAG
AGU
UAC
CGU
GAA
UUU
CCA
How would you count the population of something without counting individually
Answer:
You wouldn't.
Explanation:
If you didn't count individually then you would not have the accurate population of a location.
Question 4 (1 point) If 18 grams of oxygen reacts completely with 4 grams of hydrogen, we would expect how many grams of water?
A. Less than 22 grams because some mass is lost in the reaction
B.More than 22 grams because the oxygen gains mass during the reaction
C.22 grams because mass cannot be created or destroyed
D. There is no way to tell from this information.
Answer:
C.22 grams because mass cannot be created or destroyed
Explanation:
Reaction equation:
2H₂ + O₂ → 2 H₂O
Mass of oxygen = 18g
Mass of hydrogen = 4g
The mass of water produced is 22g according to law of conservation of mass.
The law states that " in a chemical reaction, mass is always conserved"
The sum of the mass of product and reactants must always be the same.
A student is developing a model to show how most proteins are synthesized in animal cells. Which organelles would be LEAST useful for the student to include in the model?
a. ribosomes
b. endoplasmic reticulum
c. Golgi apparatus
d. chloroplasts
Answer:
Hey buddy, here is your answer. Hope it helps you.
Explanation:
C- Chloroplasts. The chloroplasts are only present in plant cells . In plants it used for making of food and gives the color to the plants. In animal cells it is not present as we don’t require to make our own food.
the runner below has a mass of 55 kg and is moving at 3.87 m/s. what is his kinetic energy in joules
Answer:
411.86 JExplanation:
The kinetic energy of an object can be found by using the formula
[tex]k = \frac{1}{2} m {v}^{2} \\ [/tex]
m is the mass
v is the velocity
From the question we have
[tex]k = \frac{1}{2} \times 55 \times {3.87}^{2} \\ = 27.5 \times 14.9769 \\ = 411.86475[/tex]
We have the final answer as
411.86 JHope this helps you
Please help!
Drag each tile to the correct box.
Arrange the processes in the order they occur during embryonic development and cell differentiation.
1. formation of the lining of the digestive tract
2. development of heart muscle cells
3. fusion of the sperm and egg
4. differentiation of inner cell mass
5. development of the morula
In animals, what types of cells differentiate from the outer layer of cells?
a. Middle layer?
b. Inner layer?
A natural community interacting with its abiotic environment is a description of
That would be an ecosystem.
(hope this helps ^^)
The image shows mountains in Alaska. A depressed area in a mountain range. Which describes the circled area of these mountains? A syncline is visible. An anticline is visible. These mountains show no evidence of folding. These mountains likely formed from normal faults.
Answer:
I think its A but i could be wrong
Answer:
A I really dont know correct me if im wrong
Explanation:
Can I please know the answers thanks I’ll mark the brainliest!
Which of the following statements about populations in a community are true? Check all that are true.
Check all that are true.
One population may include members of multiple species.
One population may compete with another population for food.
One population may compete with another population for shelter.
One population may serve as a food source for another population.
Answer:
One population may compete with another population for food. One population may compete with another population for shelter. One population may serve as a food source for another population.
Explanation:
