Answer:A positive, B positive
Explanation:
Under a microscope, a student observes a specimen containing a cell wall, nucleus, and chloroplasts.
Which of the following could the specimen being observed belong to?
Answer:
A plant cell b/c it has chloroplast
Explanation:
Chloroplast absorbs sunlight also known as light energy used for the process of photosynthesis.
The observed specimen containing a cell wall, nucleus, and chloroplasts is most likely to belong to a plant cell.
PLANT CELL:
A plant is an organism whose cells contain organelles called chloroplast, which harbors chlorophyll pigment. This feature enables them perform photosynthesis; a process that plants use to synthesize their food.Plant cells are eukaryotic in nature i.e. they contain a membrane-bound nucleus in their cells. In addition to these organelles, plant cells also possess a cellulose-embedded cell wall that strengthens the cell. Therefore, the observed specimen containing a cell wall, nucleus, and chloroplasts is most likely to belong to a plant cell.Learn more at: https://brainly.com/question/1894299?referrer=searchResults
Why do scientists use the International System of Units (SI)?
A. because the SI is based on the metric system
B. because the tools scientists use only measure in SI units
C. so they can communicate their results without confusion
D. so all scientists are guaranteed to come up with the same measurements
Answer:
It should be answer C.
Explanation:
The main reason to create SI units was to be able to communicate everyone's results internationally, and because we all you different units, the SI units fixed that.
Hope this helped.
Can someone please help me answer this question ?
Answer:
B
Explanation:
Hope This Helps Friend
Matthias Schleiden used a microscope to observe that the
parts of plants consist of cells. Theodor Schwann used a
microscope to observe that the parts of animals consist of
cells.
Which two statements did the work of Schleiden and Schwann add to the cell
theory?
A. All living things are made of one or more cells.
B. All cells come from other living cells.
C. Cells contain genetic material that consists of DNA.
D. The cell is the basic structural and functional unit of life.
Answer:
The work of Schleiden and Schwann provided to the Cell Theory the conclusions relating to that all living things are made of one or more cells and the cell is the basic structural and functional unit of life.
Explanation:
Matthias Schleiden was a German botanist who in 1937, while studying plant tissue under the microscope, observed that all plants are made up of cells.
In 1938, physiologist Theodor Schwann performed an experiment similar to Schleiden's, but using animal tissue, concluding that animals are made up of cells.
By bringing together the findings of both scientists, two important conclusions for Cell Theory were reached:
The cell is the structural and functional unit of all living beings. All living organisms are made up of one or more cells.Both conclusions are part of the cellular theory, as it is known today.
Regarding other options:
B. All cells come from other living cells was a conclusion provided by Rudolf Virchow.
C. Cells contain genetic material that consists of DNA is an argument that is not part of the cellular theory. In fact, the DNA would not be discovered until 1953.
Answer:
a and d one or more cells and basic
Explanation:
What are the parts of the compound light microscope
: The three basic, structural components of a compound microscope are the head, base and arm.
•Head/Body houses the optical parts in the upper part of the microscope.
•Base of the microscope supports the microscope and houses the illuminator.
•Arm connects to the base and supports the microscope head.
The head, base, and arm are the three fundamental structural elements of a compound microscope.
Thus, Head/Body houses the optical components in the microscope's upper section. The base of the microscope holds the illuminator and supports the microscope.
Arm supports the microscope head and is attached to the base. The development of the field of microbiology brought into focus the significance of the identification, seeing, observation, and comprehension of microbes, including their structural morphologies and mechanisms.
The study of tiny creatures and agents that can only be seen and investigated under a microscope falls under the purview of microbiology.
Thus, The head, base, and arm are the three fundamental structural elements of a compound microscope.
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The formula below represents the most common carbohydrate known as glucose. It is classified as a monosaccharide. Glucose is synthesized by chlorophyll in plants as they use carbon dioxide from the air and sunlight as an energy source during the process of photosynthesis.
C6H12O6
Which information can be determined from the chemical formula?
Answer:
The number of atoms of each element in a glucose molecule
The information that can be determined from the given formula is the number of atoms of each element in a glucose molecule. The correct option is D.
What is an element?Any substance that cannot be decomposed into simpler substances by ordinary chemical processes is referred to as a chemical element. Elements are the fundamental building blocks of all matter.
An element is a pure substance that cannot be broken down into simpler substances through physical or chemical means.
An element is composed of the same type of atoms. Metals, nonmetals, and metalloids are the three types of elements. The symbols for the elements are used to represent them.
Glucose is made up of three elements: carbon, hydrogen, and oxygen. 6 carbon atoms bonded together in a chain with oxygen and hydrogen atoms.
The formula for the glucose can be illustrated as [tex]C_6H_1_2O_6[/tex]
Thus, the correct option is D.
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Your question seems incomplete, the missing options are:
A. The structural arrangement of the atoms in a glucose molecule
B. The color of a glucose molecule
C. The size of a glucose molecule
D. The number of atoms of each element in a glucose molecule
This is a very important question I need it answered as soon as possible please........
is red sus?
Answer:
HAHAHAHAHAHAH
Explanation:
hmmmm is he acting up??
what causes the greenhouse effect
Answer:
What causes the greenhouse effect?
Explanation:
The greenhouse effect is caused by the atmospheric accumulation of gases such as carbon dioxide and methane, which contain some of the heat emitted from Earth's surface. This radiation, unlike viable light, tendsbto is absorbed by the greenhouse gases in the atmosphere, raising its temperature.
Hope that helped♡
Answer:
earth radiates mostly infrared light
Explanation:
Orchids are flowering plants that dependent visa punishment a pol a population of orchids in a rain forest has reached its carrying capacity rainforest be population is a limiting factor in the orca population what will happen to the orchids caring capacity of the rainforest
Answer:
Explanation:
The question is incomplete below is the correct version of the question.
Orchids are flowering plants that depend on bees for pollination. A population of orchids in a rainforest has reached its carrying capacity. The size of the rainforest's bee population is a limiting factor of the orchid population. What will happen to the orchids' carrying capacity if the rainforest's bee population decreases? A. The carrying capacity will not change because it is a constant property of a species. B. The carrying capacity will not change because it is a constant property of an ecosystem. C. The carrying capacity will decrease because the level of the limiting factor decreases. D. The carrying capacity will increase because the level of the limiting factor decreases.
Answer :C. The carrying capacity will decrease because the level of the limiting factor decreases.
Explanation:
The carrying capacity of a system is how much population an habitat can sustain depending on the available resources without leading to competition. This resources include food, water, space.
Since Rain forest bee is a limiting factor for orchid therefore Orchid population is dependent on the Rainforest bee's population so a decrease in the bee's population will lead to a decrease in the orchid population.
This will then lead us to a decrease in the carrying capacity of the system due reduction in the population of the limiting factor the bee because carrying capacity is population dependent.
There is an enzyme in your stomach. Explain how the enzyme would be affected if it was moved
the small intestines.
Answer:
It might not work as efficiently because the conditions are different
Explanation:
The stomach is highly acidic compared to the small intestine. That means the pH is higher in the small intestine. Stomach enzymes are adapted to work at low pH, but might not work at a higher pH as in the small intestine. They might not be able to efficiently catalyze reactions in the small intestine.
Wich cellular process takes place in the ribosomes that are bound to the endoplasmic reticulum? a.- the breakdown of waster material b.- the conversion of radiant energy to glucose c.- the synthesis of new proteins d.- the replication of nucleic acids.
Answer:
C
Explanation:
Ribosomes are organelles which produce protein inside a cell. They do the same even if they are on an ER membrane.
Hope this helps! :)
Answer:
C
Explanation:
Here, we want to select the answer that best answer the question out of the options.
The correct answer in this case is that these ribosomes are present for the sole purpose of protein synthesis.
They are the means through which or by which new proteins are added to the cell.
Small insects can walk across the surface of calm water.
Their feet push the surface of the water down slightly,
somewhat like a person walking across a trampoline, but
they do not break the surface. What is the best
explanation for why this happens?
A. The insects are light enough so that they do not break the hydrogen bonds holding the water molecules
B. The insects actually use their wings to hover slightly above the waters surface and they only skim it with their feet
C. The insects feet are non- polar so they are repelled by the polar water molecules and are pushed away from the waters surface
D. The insects are small enough to see the individual water molecules so they are able to step carefully from one molecule to the next
Answer:
A. Insects are light enough so that they do not break the h bonds holding the water molecules together
Explanation:
The insects are light enough so that they do not break the hydrogen bonds holding the water molecules when they walk across the surface of calm water their feet push the surface of the water down slightly and it is due to surface tension.Thus, option A is correct.
What is surface tension?Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible.
Surface tension is responsible for the shape of liquid droplets and the surface tension of water is about 72 mN/m at room temperature.
Water has a tremendous amount of surface tension due to which small mass distributed effectively on its surface.
Surface tension is represented by the symbol T.
Therefore,the insects are light enough so that they do not break the hydrogen bonds holding the water molecules when they walk across the surface of calm water their feet push the surface of the water down slightly and it is due to surface tension.Thus, option A is correct.
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Which may result from poor air quality?
diabetes
asthma
heart disease
sickle cell anemia
Answer:
heart disease
Explanation:
Answer:
the answer C or asthma
Explanation:
because your lungs arent supplying enough oxygen for someone to be able to breathe proporly. also the inhalor people use give them the air that their lungs arent supplying for them hope it helped XD.
Are echinoderms autotrophic? How do you know? (site 1)
Answer:
They are heterotrophic!:)
Explanation:
Hey! Echinoderms aren't autrophic due to them veing observed to consume other organisms. Have a good day/night!
What evidence did Mendel find that supported his law of independent assortment?
A. Some traits are controlled by several different genes.
B. Most traits have a dominant form and a recessive form.
C. A trait can be passed on from a parent to an offspring.
D. Different traits are passed on independently of each other.
Answer:
D
Explanation:
The evidence observed by Mendel supporting his law of independent assortment is that different traits are passed on independently of each other (Option D).
What is independent assortment?In genetics, independent assortment refers to the independent segregation of characters (genes) in offspring.
Independent assortment can be observed by crossing parental lines that exhibit different traits.In conclusion, the evidence observed by Mendel supporting his law of independent assortment is that different traits are passed on independently of each other (Option D).
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Once amylase has broken down starch, can it break down another starch molecule?
Answer:
Yes, amylase can be reused, and when fulfills its catalytic function, it is free to catalyze the breakdown of another starch molecule.
Explanation:
Amylase is an enzyme capable of catalyzing the breakdown of starch bonds, separating it into glucose molecules.
The enzymes, including amylase, have the property of being free and without structural alteration when catalyzing a reaction, to bind to the specific substrate and catalyze a new reaction.
Amylase is not consumed, unlike a reagent, so it can be reused in new reactions.
Identify the type of chemical reaction.
H2CO3H2O + CO2
reversible
decomposition
synthesis
exchange
Answer:
Answer = Decomposition
Answer:
Decomposition
Explanation:
To increase memory, the author recommends that a
person
А
get fresh air and exercise.
B
spend time indoors at the library.
С
sleep six hours every night.
D
memorize homework assignments.
Answer:
Option B and D Best Support The Statement
Explanation:
To Increase yourself in knowledge one must go to the library and of course memorize their homeworks
Which of the following statements is not part of the cell theory. 1. Cells are the basic unit of structure and function in all living things
2. All cells are produced from other cells
3. Only animal cells are composed of cells
4. All living things are composed of cells
Answer:
your answer is option 3
what element has fewer valence electrons than magnesium
Which of the following living things would have the same processes at the cellular level as it would at the organismal level? An amoeba A human A flea An oak tree A mushroom
A jar contains 200 marbles total. Some are black. If you pull 4 marbles out and 1 is black, how many out of the 200 marbles would you guess are black?
4 Which statement best describes the graph shown?
Original reaction
Reaction B
Energy -
products
reactants
Reaction progress -
FIG. 2.5.1
a. More energy is released by the original reaction.
b. Less energy is needed to start reaction B.
c. The original reaction is catalyzed.
d. Reaction B occurs at a slower rate.
Graph attached
Answer:
b. Less energy is needed to start reaction B.
Explanation:
The graph shows two different reactions and the energy required over time
a. More energy is released by the original reaction. - this is false, more energy is required for the original reaction to proceed
b. Less energy is needed to start reaction B. - this is true, the peak of the curve is lower showing less energy is required
c. The original reaction is catalyzed. - this is false, likely reaction B is catalyzed
d. Reaction B occurs at a slower rate.- false, they occur at the same rate.
Answer:
b. Less energy is needed to start reaction B.
Explanation:
100%
11. A virus has infected a bacteria and inserted its viral DNA into the DNA of the
bacterial chromosome. This inserted viral DNA is known as what?
A. vNa
B . vDNA
C. Prophage
D. Provirus
Answer:
I would have to say the answer is provirus
Explanation:
What biome do emperor penguins live in?
Answer:
Emperor penguins spend all year in Antarctica
Explanation:
Answer:
Tundra Biome
Explanation:
excertion is best described as the removal of what
Answer:
Excretion is the removal of waste
Match the correct definition with its word
rough endoplasmic reticulum protein synthesis
lysosome store calcium ions
nucleus create lysosomes
mitochondria create energy through respiration
smooth endoplasmic reticulum break down cellular food and waste
Golgi body controls cell activity
Answer:
rough endoplasmic recticulum synthesis protein to the cell.
Answer:
rough endoplasmic recticulum synthesis protein to the cell.
Explanation:
A landscaper is shopping for landscaping materials. She wants to use materials through which water flows easily.
Which two materials should she choose?
clay and gravel
gravel and loosely packed soil
granite and rocks with cracks
rocks with cracks and clay
Answer:
gravel and loosely packed soil
Explanation:
The two materials that the landscaper should choose and use are: B. gravel and loosely packed soil.
What is a landscaping material?A landscaping material can be defined as substances or organic plant materials that are typically used in or derived from the natural world, so as to help improve and beautify the landscape of real estate properties.
The examples of landscaping materials.Some examples of landscaping materials include the following:
ShrubsSoil (sand)GravelsRocksStonesBouldersIn this scenario, the two materials that the landscaper should choose and use are gravel and loosely-packed soil because these materials would allow water to flow through easily.
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right now humans are making more co2 faster than _______ can absorb it.
have you ever heard of something called a p l a n t?
Directly or indirectly, where does almost all life get energy from?
Answer:
The sun
Explanation:
Only producers get energy directly, either straight from the sun or by some other means. Carnivores and other consumers get energy indirectly via the consumption of producers and animals that eat producers.