A cell is the smallest unit of life. Most cells are so small that they cannot be viewed with the naked eye. Therefore, scientists must use microscopes to study cells. Electron microscopes provide higher magnification, higher resolution, and more detail than light microscopes
Answer:
A cell is the smallest unit of life. Most cells are so small that they cannot be viewed. Therefore, scientists must use microscopes to study cells. Electron microscopes provide higher magnification, higher resolution, and more detail than light microscopes.
Explanation:
4. What is the density of a block with a mass of 36 g and a volume of 9 cm?
O A. 45 g/cm
O B. 27 g/cm
O C.4g/cm
OD. 0.25 g/cm
what is the first amino acid to enter the ribosome during translation in a eukaryotic cell
Answer:
acid methionine
Explanation: In both prokaryotic and eukaryotic cells, translation always initiates with the amino acid methionine, usually encoded by AUG.
Answer:
acid methionine
Explanation:
If a bird can fly and a duck can swim and a whale can float what animal can do all 3 but better without looking?
Answer:
Your MOM JK A HUMAN
Explanation:
Answer:
hm...... ur mom
Explanation:
ate that fr
When populations share their environment and interact with
populations of other living species, it is called
A) A biome
B) A community
C) An ecosystem
D) A niche
Answer:
A
Explanation:
its an ecosystem; reaction between living things and their environment
When populations share the environment and interact with the other populations of different living species present in the same are, it is called an ecological community. Thus, the correct option is B.
What is an ecological community?
An ecological community is defined as the group of species which are commonly found together in an area. Ecological communities may include animal or plant assemblages with the similar habitat requirements and contain species which may interact with each other or rely on the similar processes in their particular environment.
An example of ecological community is a forest community which comprises of all the trees, the plant community, birds, deer, squirrels, foxes, fungi, insects, and other local or seasonal species.
Therefore, the correct option is B.
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A student adds 10 drops of a copper sulfate and sodium hydroxide solution to a test tube containing milk. The solution undergoes a color change from blue to purple. The presence of which organic molecule is indicated by the color change of the solution?
A.) Carbohydrate
B.) Protein
C.) Lipid
D.) Nucleic Acid
Answer:
protein is the right one
Explanation:
The correct option is B. The protein is a organic molecule is indicated by the color change of the solution.
What is Biuret test?The egg becomes violet when two drops of copper sulphate and ten drops of caustic soda or NaOH are put to it. This suggests that proteins are present.
This is the Biuret test, and the basic idea is as follows: Caustic soda or NaOH, which are both alkaline media, cause the Cu²⁺ ions are converted to Cu.
Copper sulphate (CuSO₄), sodium hydroxide (NaOH), and sodium-potassium tartrate are the ingredients in the biuret reagent (also known as Rochelle salt). This reagent does not include biuret (H₂N-CO-)2NH, despite its name. It plays a crucial role in the Biuret protein assay.
Therefore, The correct option is B. The protein is a organic molecule is indicated by the color change of the solution.
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as growth occurs in the body, new substances must be synthesized. by what type of chemical reactions are molecules joined together to form more complex molecules?
Answer:
Anabolic reactions, also called biosynthesis reactions, create new molecules that form new cells and tissues, and revitalize organs.
Explanation:
Could you guess give me a science fair project idea or just a simple question? One that's unique, easy to prove, and not stu pid!
how can complementary protein foods help you meet your protein requirements?
Answer:
combining plant protein sources to achieve a better amino acid
Explanation:
Bringing it all together. Protein complementation is combining plant protein sources to achieve a better amino acid balance than either would have alone. Because of differences in amino acid make-up, when plant sources are combined, the strengths of one make up for the deficiencies in another
Which of the following is a product of photosynthesis and a reactant in cellular respiration?
Water
Carbon dioxide
ADP
Oxygen
Answer: Carbon dioxide
Explanation:
Answer:
Carbon dioxide
Explanation:
Please heeeeeeeeeeeeeeeellp
Answer:
⇔⇔Explanation
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explain the importance of urine analysis in medical diagnosis, giving example
Answer:
so the doctors can examine the urine to find out if you have any batreria or viruses
Explanation:
what is the number of paired processes in the thoracic bony vertebra?
Answer:
There are six facets per thoracic vertebrae: two on the transverse processes and four demifacets—the facets of the transverse processes articulate with the tubercle of the associated rib. The demifacets are bilaterally paired and located on the superior and inferior posterolateral aspects of the vertebrae.
Explanation:
Each thoracic vertebra has six facets: two on the transverse processes and four demifacets, which articulate with the tubercle of the corresponding rib.
Thus, The superior and inferior posterolateral sides of the vertebrae each have a pair of demifacets that are bilaterally paired.
There are 12 bony thoracic vertebrae in the human thoracic spine. Transverse processes are the two paired processes that each thoracic vertebra has.
Numerous muscles and ligaments can attach to these transverse processes, which extend laterally on both sides of the spine. They are crucial in assisting in mobility and supporting the spine.
Thus, Each thoracic vertebra has six facets: two on the transverse processes and four demifacets, which articulate with the tubercle of the corresponding rib.
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I need help with science 02.04 Evolution and Natural Selection its a writing questin.
Answer:
Name and Title
Include your name, instructor's name, date, and name of lab.
Objective(s)
In your own words, what was the purpose of this lab?
Hypothesis
In this section, please include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the investigations. You will investigate two different versions of the tree environment as it changes over time: light-colored bark and dark-colored bark. Be sure to list your hypothesis for each environment below.
Example: If I investigate the light-colored bark environment, then I will observe an increase in the light-colored peppered moths over time.
Hypothesis for the light-colored bark:
Hypothesis for the dark-colored bark:
Procedure
The procedures are listed in your virtual lab. You do not need to repeat them here. Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation.
Reminder: The test variable is the item that is changing in this investigation. The outcome variable is the item that you are measuring in this investigation.
Test variable (independent variable):
Outcome variable (dependent variable):
Data
You will investigate both environments. Record your data for each trial of that environment in the data charts below.
Pre-Industrial Revolution Bark (Light-colored)
Generation Rate of Survival for Light-colored Peppered Moths Rate of Survival for Dark-colored Peppered Moths
1
2
3
4
5
Post-Industrial Revolution Bark (Dark-colored)
Generation Rate of Survival for Light-colored Peppered Moths Rate of Survival for Dark-colored Peppered Moths
1
2
3
4
5
Conclusion
Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.
What caused the tree bark to become darker?
In the lab simulation, which color peppered moth was able to have the higher rate of survival on the light bark?
In the lab simulation, which color peppered moth was able to have the highest rate of survival on the dark bark?
During the Industrial Revolution, explain what caused the population of light-colored peppered moths to decrease and the population of dark-colored peppered moths to increase over time. Be sure to include how the ability to survive and reproduce impacts the process of natural selection.
Predict which color peppered moth would have a better chance of survival in your neighborhood? Explain why.
Explanation:
explain the differences in structure and function between the cell wall and the cell membrane
CELL WALL -
-protects cell externally
-Thick and rigid
CELL MEMBRANE -
-Protects cell internally
-Thin and delicate
HOPE IT HELPS :)
Answer:
Cell wall:
Functions as a storage unit by storing carbohydrates for use in plant growth, especially in seeds.It allows entry of smaller molecules through it freely.
Cell Membrane:
Protecting the integrity of the interior cell.
Providing support and maintaining the shape of the cell.
Hope this helped and brainlest please!
Explanation:
Pls help me with this question
Answer:
B
Explanation:
means that the pair of genes is the same. Since the axial flower is , its genes aret, so its genotype would be AA.
PLEASE HELP ME WITH THESE QUESTIONS!
1.Which chamber receives blood from all the body veins?
2. The blood passes from this chamber into the _____________
While this is happening, the valve between the right atrium and right ventricle is ____________ (open OR closed)
3. The blood in the right ventricle is high in (oxygen OR carbon dioxide)
4. The body (can OR cannot) and low in (oxygen OR carbon dioxide) use this blood.
5. Where must this blood go to get a fresh supply of oxygen?
Student Handout
Answer:
Explanation:
1. Which chamber receives blood from all the body veins?
= Right atrium
2. The blood passes from this chamber into the ...
= Right ventricle
While this is happening, the valve between the right atrium and right ventricle is (open OR closed)
= open
3. The blood in the right ventricle is high in (oxygen OR carbon dioxide)
= carbon dioxide
4. The body (can OR cannot) and low in (oxygen OR carbon dioxide) use this blood.
= cannot
= oxygen
5. Where must this blood go to get a fresh supply of oxygen?
= lungs
Hope this helps!
Answer:
2.left ventricle, open
3. carbon dioxide
4.?
5. Carried from lungs->left side of the heart
web food
please help
Answer:
I just need Points
Explanation:
Gggggg
(WILL GIVE BRAINLIEST) A researcher is curious about whether treating mice kindly will enhance their ability to run through a maze. Which of these is a Confounding Variable for this experiment?
a) whether the mice are treated kindly or not
b) the speed with which the mice run through the maze
c) the food the mice receive
d) both a and b
Both a and b are the correct answer
Answer: option C
Explanation:
food gives energy........
6. Using your data, compare atomic number with lowest and highest
wavelengths in spectrum. Is there a pattern? What might explain the
presence or absence of a pattern based on what you know about atoms,
electrons, and emission spectra?
7.Using your data, compare atomic number with total number of spectral lines.
Is there a pattern? What might explain the presence or absence of a pattern
based on what you know about atoms, electrons, and emission spectra?
What is the data that i need to be evaluating?
nêu đặc điểm cấu tạo hóa học của ADN
Answer:
Thailand
Explanation:
You should carry the microscope with the base in the palm of one hand and the other hand on the arm.
A. True
B. False
C. Other
Identify three diseases of the respiratory system, and state what triggers or causes each disease.
Answer:
asthma, chronic obstructive pulmonary disease (COPD), pulmonary fibrosis.
Explanation:
Asthma: It can be caused by being exposed to viral infections, also contact with allergens. when your a infant your immune system isn't very strong, that's why it developes at younger ages (usually)
COPD: you can get this by being exposed to tobacco smoke, it can also be caused by being exposed to dusts and chemicals, and fumes from burning fuel.
Pulmonary Fibrosis: this can be caused by things like, Exposure to toxins like asbestos, or things like Coal dust, that's why it's common in coal miner's and the sandblasting industry.
a small population of chimpanzees lives in an isolated habitat that undergoes no changes for a long period. how would an instance of gene flow most likely affect the population?
A. it will increase the genetic diversity of the population.
B. it will cause the chimpanzees to evolve into a new species.
C. it will decrease the number of alleles available for genetic recombination during reproduction.
D. it will increase the rate at which the chimpanzees are able to adapt to their current environment.
what is the function of the calvin cycle in purple bacteria?
Answer:
Some examples of microorganisms that utilize the Calvin cycle include cyanobacteria, purple bacteria and nitrifying bacteria.
Specifically, the Calvin cycle involves reducing carbon dioxide to sugar trisoe phosphate, most commonly known as glceraldehyde 3-phosphate (GAP).
The Calvin cycle involves reducing carbon dioxide to sugar trisoe phosphate, most commonly known as glceraldehyde 3-phosphate in bacteria.
What are the functions of calvin cycle?The Calvin cycle, light-independent reactions, bio synthetic phase, dark reactions, or photosynthetic carbon reduction cycle of photosynthesis is a series of chemical reactions that convert carbon dioxide and hydrogen-carrier compounds into glucose.
The Calvin cycle has four main steps: carbon fixation, reduction phase, carbohydrate formation, and regeneration phase. Energy to fuel chemical reactions in this sugar-generating process is provided by ATP and NADPH.
The Calvin cycle is a process that plants and algae use to turn carbon dioxide from the air into sugar, the food autotrophs need to grow. Every living thing on Earth depends on the Calvin cycle.
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A 2-year-old frog is about the size of an adult but still has a tail. What causes the frog to be abnormal?
Explanation:
it may be late before give birth to him
at the moment of it lateness may cause it abnormal growth
how are genes created through duplication and rearrangement
Answer:
Duplication, which means to double, results in two identical genes. One or both of these genes may change over time through mutations to create two new different genes. During meiosis, gene duplication is likely to happen when chromosomes cross over and recombination occurs.
Explanation:
anybody know how to do this? I’m confused
Answer:
1CH4 + 2O2 --> 1CO2 + 2H20
Explanation:
You have to balance the equation. That means you have the same number of atoms of each element on both sides of the equation. For example, if you have 4 C (carbon) on the left side before the arrow, you also have to have 4 C on the right side.
Having 1 CH4 on the left gives you 1 C and 4 H. On the right side, there is also 1 C in the CO2 and since there are only 2 Hs in H2) you need 2 H20 to balance the 4 Hs. You do the same thing for each letter. So since you needed 2 H2O to balance the Hs, that gives you 2 O2s , plus 2 more Os on the side of the equation from the 1 CO2, for a total of 4 Os on the right side. Therefore, yu need 4 Os on the left. there are 2 in O2, so then you need 2 of O2.
You just have to keep adding them up until there is an equal number of each letter on each side.
Explain what you think the quote "You are what you eat" means?
(Include the following vocabulary: macromolecule, carbohydrates, lipids, proteins, nucleic acids)
The term "You are what you eat" was coined due to the effects of the content of the food we ingest on the rest of our organism.
Food comes in an endless number of options, each of which contains numerous molecular compounds of varying kinds. Every molecular compound that we ingest through the food that we eat can have distinct effects on the body, some of these compounds include:
MacromoleculesCarbohydratesLipidsProteinsNucleic acidsMacromolecules are a class of molecules that encompass many others. Proteins and lipids are just some of the examples mentioned that fall within the class of macromolecules. Some macromolecules can be good for the body, such as proteins, whilst others can cause some negative effects as is the case with lipids.
Lipids are vital for the proper functioning of the body. Lipids provide a source of reserve energy and can regulate hormones, among other important functions. However, lipids can also be harmful to your health. Lipids provide reserve energy by being stored as fat. Excessive consumption of lipids can cause numerous health problems.
Carbohydrates are at the same level as lipids in terms of their effect on the body. Carbohydrates are sugars, which are necessary to include in a healthy diet, however, excessive consumption of carbohydrates can cause health issues ranging from diabetes to pancreatic failure.
Proteins are amongst the most essential macromolecules for the human body. They provide a variety of functions which include:
Maintaining pH levelsRepairing tissueAid in the production of antibodiesAllow metabolic reactions to take placeamong many others. This, along with nucleic acids are a prime example of "you are what you eat" in that those who consume more of these (coupled of course with proper exercise) tend to be healthier individuals.
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Write any two organs:Nervous system
The nervous system has two main parts: The central nervous system is made up of the brain and spinal cord. The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
Explanation:
Brainspinal cordHope it helps youJust fill in the blanks