Answer:
The correct answer is -
a) A plant cell B animal cell
b) nucleus
C) Vacuole
Explanation:
In plant cells, there is a large vacant space present in the center which is actually a vacuole that plays role in various types such as nutrients storage, water balance. In plant cells, a dense round structure present at one side of the cell known as the nucleus.
In animal cells, the vacuoles are absent or very small however the round dense structure of the nucleus is present in the center of the cell. Thus, the correct answer is -
a) A plant cell B animal cell
b) nucleus
C) Vacuole
Which of the major tectonic plates is composed mainly of oceanic lithosphere?
Answer:
A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest.
HELP MEEE,!!!!! PLEASE
Answer:
C
Explanation:
spindle fibers are important during metaphase. division stops without them.
What happens if the mRNA strand is not transcribed properly?
Match the appropriate food item with the indicator chemical you would use to detect the principal organic molecule present in that item.
Note: some indicator chemicals may be used for more than one of these food items or not at all.
B. raspberry jam
A. benedict's solution
B. benedict's solution
E. V ground turkey
C. lodine
C. plain oatmeal
D. sudan IV
A honey
E. bluret reagent
Answer:
raspberry jam - benedict's solution
honey - benedict's solution
ground turkey - biuret reagent
oatmeal - iodine
Explanation:
Benedict's test is a test used to confirm simple carbohydrates. it helps in identifying reducing sugars that have free ketone or aldehyde functional groups. Raspberry jam has mainly carbohydrates that can be tested by this indicator.
An iodine test is for the determination of starch which is a non-reducing sugar such as oatmeal
Sudan IV (C24H20N4O) is used for the presence of staining of lipids, triglycerides and lipoproteins. There is no food item given that has a proper amount of fat or lipid
Beuret reagent is a protein testing reagent that shows the presence of the protein. Ground turkey has a huge amount of protein that can be indicated by this
I will mark someone brainliest! Please help!!
Answer:
The first one
Explanation:
Mark me brainliest please
Which of the following statements is true about mutations?
A. It is a source of genetic variation
B. Rates tend to be very high in most populations.
C. It is generally lethal
D.It affects only somatic cells
Answer:
A. It is a source of genetic variation
For a long time scientists have studied the cells of complex organisms. Scientists have discovered that
Answer:
Qweers
Explanation:
Fggs
Scientists have discovered the function of the cell of complex organisms according to their structure.
What is a living cell?The fundamental building blocks of form and operation in living things are cells. This implies that cells make up an organism's components and carry out all of its operations and functions.
The cell membrane, the nucleus, and the cytoplasm are the three primary components of a cell.
They provide the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks.
Therefore after a long studied scientist discovered the function of the cell, which perform to do many processes inside the cell of complex organisms.
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Give an example of central heating and of local heating.
Answer:
A central heating system provides warmth to the whole interior of a building from one point to ... Institutional heating systems (office buildings or schools, for example) can use low-grade, inexpensive
An alternative to district heating would be to build a small district heating plant together with your neighbours, which is known as local heating or joint heating. ... The local heating system also includes a network of pipes and a common boiler plant that delivers heat through the pipework to the single-family houses.
Explanation:
-Eijiro <3
PLEASE HELP I WILL MARK BRAINLEST IF U ANSWE THE QUESTION
Which of the following organisms is most closely related: Acer capillipes, Equidae equus, Sus scrofa, Acer saccharum, or Felus catus? Explain your answer.
sorry I'm running out of points to give but I really don't understand this
Answer:
Explanation:Acer Rubrum & Chenopodium rubrum. Acer Rubrum & Acer Saccharum. Acer Rubrum & Acer Saccharum. (1) cats, weasels, and wolves (2) bears, raccoons, and hyena dogs (3) ...
vitamin(a) retinol function on the body
Answer: Function. Vitamin A helps form and maintain healthy teeth, skeletal and soft tissue, mucus membranes, and skin. It is also known as retinol because it produces the pigments in the retina of the eye. Vitamin A promotes good eyesight, especially in low light. Vitamin A (retinol) is ingested as either retinyl esters or carotenoids and metabolized to active compounds such as 11-cis-retinal, which is important for vision, and all-trans-retinoic acid, which is the primary mediator of biological actions of vitamin A
Explanation:
a student models moon phase she holds a foam ball on a stick in front of her body and stands in front of the light as shown. the student uses herself to represents earth. she turns her body slowly to phases.
Answer:
D- Diagram 4
the full moon is represented in diagram four.
Each different section of the chromosome represents a _____
*wasnt given any answers
In squash plants, yellow fruit (Y) is dominant to white fruit (y). If two plants heterozygous for yellow fruit are crossed, what are the possible genotypes of the offspring?
Answer: YY, Yy, yy
Explanation:
The possible genotypes of the offspring would be YY, Yy, yy.
What do you mean by genotypes?The genotype of an organism is its complete set of genetic material. Genotype can also be used to refer to the alleles or variants an individual carries in a particular gene or genetic location.
Genotype is the genetic make-up of an individual organism. Your genotype functions as a set of instructions for the growth and development of your body. The word 'genotype' is usually used when talking about the genetics of a particular trait (like eye colour).
The different types of genotypes are- homozygous recessive (pp), homozygous dominant (PP), and heterozygous (Pp). The homozygous dominant and the heterozygous genotypes show the same phenotypes.
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Explain the unique information trace fossils and coprolites can help scientists infer about an organism
They're trace fossils, not animal bodies. This coprolite can reveal an animal's diet. Scientists can determine what animal dropped coprolites based on its shape, size, and location.
What are coprolites?Fossilized feces are known as coprolites. Because coprolites provide information for the animal's behavior rather than its shape, rather than being considered body fossils, they are instead categorized as trace fossils.
A coprolite can provide researchers with information about an animal's nutrition. Scientists are able to determine the species of animal that may have been responsible for the droppings by analyzing the shape and size of the coprolites as well as the location where they were discovered.
Because coprolites have a propensity to deteriorate so quickly, we only find them very infrequently. They are the marine species that are found the most frequently. The presence of coprolites in fish and reptiles is very common.
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What does it mean when we say that DNA replication is semiconservative ?
Answer:
Basically, when people say that DNA replication is semi-conservative they are saying that two identical copies are being made from the original DNA strand.
Explanation:
The two new strands contain one side of the original DNA and another side of synthesized pair.
what are the reactants of glycosis?
Answer:
Explanation:
The only true reactant of glycolysis is a molecule of glucose. Two molecules each of ATP and NAD+ (nicotinamide adenine dinucleotide, an electron carrier) are introduced during the series of reactions.
PLEASE HELP ME
The greater the biodiversity in an ecosystem the
A. less likely the ecosystem is to survive
B. more likely the ecosystem will survive
C. less valuable it is to human, for various products
D. the more similar it is
Answer:
I am pretty sure the answer is B
- I'm sorry of its not correct
What is the trophic level of the Aoudad (primary, secondary, tertiary consumer, scavenger, decomposer) .
PLEASE ANSWER ASAP!!!!
Answer:
Primary.
Explanation:
The Aoudad (Barbary sheep) Eat producers, (autotrophs) making them primary consumers
what rock forms by heat and pressure deep underground
Answer:
igneous rock ............
The discovery that chromosomes are involved in inheritance was made possible by the invention of the -
O a. computer
O b. microscope
Oc microgram scale
O d. mercury thermometer
where are protein channnels that are used during facilitated duffusion loacated
Answer
Facilitated diffusion is the diffusion
Explanation
Facilitated diffusion is the diffusion of solutes through transport proteins in the plasma membrane
Hope this helps :-)
Where is glucose stored in the body.
Explanation:
Glucose is stored in the liver.
Question: Explain how DNA is replicated using the following terms: nucleotide, enzyme, and complementary bases.
No rush but the sooner the better.
Answer:
DNA replication occurs through the help of several enzymes. These enzymes molecules by breaking the hydrogen bonds that hold the two strands together
Explanation:
what are the effects of sunlight on the aquatic life inhabiting amazon river
Answer:
the effects of sunlight on the aquatic life inhabiting the Amazon River. The center of all aquatic life in the Amazon is located in The Amazon Basin, the sun makes sure that all fish and plant life can sustain life.
The sunlight affects the aquatic species that lives in the Amazon River. The Amazon Basin is the epicenter of all aquatic life in the Amazon, where the sun ensures that all fish and plant life may survive.
What is Amazon Basin?The region of South America that the Amazon River and its tributaries drain is known as the Amazon basin. Approximately 6,300,000 km2, or 35.5 percent of South America, is covered by the Amazon river basin.
The Amazon basin not only contains the world's largest remaining tropical rainforest, it also harbours at least 10% of the known biodiversity, including endemic and threatened species of plants and animals, and its river contributes 15–16% of all river flow into the oceans.
The aquatic animals that inhabit the Amazon River are impacted by sunlight. All aquatic life in the Amazon is concentrated in the Amazon Basin, where the sun ensures the survival of all fish and plant life.
Thus, this is the chief effect of sunlight on the aquatic life inhabiting amazon river.
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A student examines a periodic table.
Which inferences about sodium (Na) are true?
Answer:
true c this is the answer
which cell organelle is the site of cellular respiration in most types of living things?
Which of the following statements about Newton's second law is false?
A. The acceleration of an object is directly proportional to the net force applied on the object.
B. The acceleration of an object experiencing a constant net force is inversely proportional to its mass.
C. Objects with a small inertia are harder to accelerate than objects with a large inertia.
D. Increasing the net force applied to an object increases the acceleration of the object.
Answer:
C. Objects with a small inertia are harder to accelerate than objects with a large inertia.
According to cell theory, which activity is impossible?
Answer:
Liver cells being generated by air
Explanation:
A P E X
What do surface current affect !!!!
Answer:
Surface currents affect climate by moving cold and warm water around the globe. In general, currents carry warm water from the tropics toward the poles and bring cold water back toward the equator. A surface current warms or cools the air above it, influencing the climate of the land near the coast.
Explanation:
A ray of light is passing through a medium making an angle of 45°. If the
refractive index of the medium is 1.4, calculate the angle of refraction. [Ans: 30°)
Answer: By Snell's law, we can see that the angle of refraction is 30.34°
Explanation:
Snell's law says that:
If a ray in a medium of refractive index n₁, insides with an angle θ₁ in another medium with refractive index n₂, then the angle of refraction θ₂ is given by:
n₁*sin(θ₁) = n₂*sin(θ₂)
We know that:
The incidence angle is 45°, then: θ₁ = 45°
We can assume that the first medium is air, then n₁ = 1
The refractive index of the other medium is 1.4, then n₂ = 1.4
Replacing these in the Snell's law equation we get:
1*sin(45°) = 1.4*sin(θ₂)
Now we can solve this for the angle of refraction:
sin(45°)/1.4 = sin(θ₂)
Asin(sin(45°)/1.4 ) = Asin( sin(θ₂)) = θ₂ = 30.34°
So the angle of refraction is 30.34°