Answer:
DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions
Large reefs are thousands of years old. True or false identify if it is false
Answer:
True
Explanation:
y e s .
What cellular process does a mitochondrion perform for the cell?
Answer:
Cellular Respiration.
Explanation:
All living things must contain genetic material. Which of the following nonliving things also has this characteristic? A. Fire B. Cell phone C. Virus D. Organic phosphates
Genetic material is the hereditary unit found in the cells of every living organism. Viruses are nonliving things that also have genetic material. Thus, option C is correct.
What are viruses?Viruses are organisms that are living and nonliving as they reproduce when once inside the host cell and have the RNA or the DNA as the genetic material inside their capsids.
The protein shell of the virus includes one of the types of genetic material that infects the host DNA by taking control of the host machine to produce multiple copies.
Therefore, the virus is a non-living with genetic material.
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Imagine that you live in a city that gets a lot of wind. You
are part of a group that is examining the environmental
impact of switching your region from fossil fuels to wind
power.
Which two events are possible consequences that you should consider?
A. Risk to birds that live in your area
B. Decrease in carbon dioxide production
O C. Harm to animals living in the region's rivers
D. Toxic waste created by nuclear reactions
Answer:
a and b? qowlowlksqksk
Answer:a and b
Explanation:
Why do you seldom see fossils in metamorphic rocks?
Answer:
Metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions.
Explanation:
Fossils are found in metamorphic rocks because metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions.
What are metamorphic rocks?Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock is subjected to temperatures greater than 150 to 200 °C and, often, elevated pressure of 100 megapascals or more, causing profound physical or chemical changes.
Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form.
Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
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What does the term “carbon cycle” mean?
Answer:
Carbon cycle is:
the series of processes by which carbon compounds are interconverted in the environment, involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.
there si a roller coaster car at te top of the hill , one at the middle of the hill , and one at the bottom of the hill which has the most potential energy
A) THE CAR AT THE BOTTOM OF THE HILL
B) THE CAR IN THE MIDDLE OF THE HILL
C) THE CAR AT THE TOP OF THE HILL
D) ALL OF THE CARS HAVE ZERO POTENTIAL ENERGY
Answer:the car at the top of the hill
Explanation: it has the most potential energy. If it is sitting still, it has no kinetic energy. As the car begins to roll down the hill, it loses potential energy, but gains kinetic energy.
How many chromosomes do human somatic cells (body cells) have?
Answer:
46
Explanation:
Answer:
46
Explanation:
Jim found a chart that showed information on ecosystems. He noticed that the chart was subdivided into producers, primary consumers, secondary consumers, and tertiary consumers.
Which statement BEST describes the energy relationship found within this ecosystem chart?
A Producers generate less energy than consumers in the ecosystem.
B. Plants produce the most energy for feeding organisms in the ecosystem.
C.Tertiary consumers such as snakes consume most of the energy available in the ecosystem.
D. The insect population has less energy available to it than the frog population in the ecosystem.
What laws or theories were assoiates with gregor mendel findings
In humans type A blood is caused by the antigen A in the red cells resulting from gene A. Type B is caused by a gene B for antigen B. Type O blood results from the absence of either gene while the presence of both genes causes both antigens to be formed resulting in type AB blood. If a person of blood group AB marries one belonging to blood group O what will be the blood groups of their children? Show the Punnett square for this cross.
Answer:
Type A and type B
Explanation:
This question is describing blood type in humans. According to the question, type A blood is caused by the antigen A of gene A while Type B is caused by a gene B for antigen B. Type O blood results from the absence of either gene while the presence of both genes causes both antigens to be formed resulting in type AB blood.
If a person of blood group AB i.e. genotype (iAiB) marries one belonging to blood group O (genotype ii), the following genotypes of offsprings will be produced (see attached image for punnet square):
iAi - blood type A
IBi - blood type B
which statement best describe the relationship between the products of photosynthesis and the reactants in cellars respiration
Answer:
Photosynthesis products serve as a chemical energy suppliers for reactants and cellular respiration.
Since photosynthesis creates oxygen and oxygen needed for cellular respiration in the production of carbon dioxide and energy, carbon dioxide is used to generate plant energy and oxygen.
Explanation:
Photosynthesis products produce chemical energy by reacting to cellular respiration. Photosynthesis products interact to extract ATP from cells in cellular breathing reactants.
Photosynthesis products inhibit the reactants in the presence of light in cellular breathing.
The amusement park will be located in a hot climate. The engineers want to select a material for the giant slide that will prevent the surface from getting too hot. Based on the specific heat values, what material would be the best choice? A.Plastic, because it takes more energy to raise its temperature B.Iron, because it takes more energy to raise its temperature C.Plastic, because it takes less energy to raise its temperature D.Iron, because it less energy to raise its temperature
Answer:
A
Explanation:
The correct answer would be plastic because it takes more energy to raise its temperature.
The specific heat capacity of a substance is the amount of heat required to raise the temperature of the substance by one degree. The more the specific heat capacity of a substance, the more the heat required to raise its temperature.
The specific heat capacity of plastics is generally more than that of metals. Hence, metals will get heated faster than plastics under the same condition. More energy would be needed to raise the temperature of plastics when compared to metals.
the correct option is A.
When you eat an apple you are acting as a
Answer: Are their any answer choices for this question
Explanation:
Which of the following would require active transport?
-moving molecules across a membrane from low concentration to high concentration
-transporting materials against the concentration gradient
-during endocytosis
-all answers are correct
Explanation:
In a DNA molecule the amount of adenine is equal to the amount of ....
Which of the following is NOT a function of proteins
structural support
enzymes
transport across the cell membrane
all of the above are functions of proteins
Answer:
all of the above
Explanation:
proteins make up the cell membrane, giving the cell structural support.
proteins act as enzymes and catalysts within the cell.
proteins aid in the transport of specific substances.
What features are seen in all cells?
All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4) ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.
Answer:
cytoplasm, Cell membrane, and DNA and ribsome.
Please correct me If I am wrong Thank You
Explanation:
in which part of the food chain is the greatest amount of energy transferred
Answer:
In the Food Chain the greates amount of energy tranfer happens with the plants.
Explanation:
Plants - energy - herbivore - energy - Carnivore
100% 50%
This isn't exact but I hope it gives you the right Idea and helps
The first trophic stage of a food chain, which contains the most energy, is made up of the green plants with in ecosystem known as producers.
What is Trophic level of Food chain?The term "trophic level" refers to an organism's place in the food chain and has a range of one for primary producers to 5 for humans and marine mammals. The mean trophic level of the consumer's prey is multiplied by one to determine the consumer's trophic level.
The trophic levels are divisions into which species in food webs get categorised. These levels can be roughly categorised as producers (first trophic level), consumers, and decomposers (last trophic level). The first trophic level is producers. The first trophic level receives 100% of the energy from the sun, which has the greatest amount of energy, while subsequent trophic levels only receive 10% of the energy of the level before them.
Thus, the first trophic stage of a food chain, which contains the most energy, is made up of the green plants with in ecosystem known as producers.
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Question 5
Which of the following is an autotroph?
Shark
Fish
Snail
Algae
Fungus
Algae is an autotroph. Autotrophs include organisms including plants, algae, plankton, and bacteria. Producers, primary consumers, secondary consumers, and tertiary consumers make up the food chain.
An autotroph is what?An organism that can manufacture food by utilizing light, water, carbon dioxide, or other chemicals is known as an autotroph. Autotrophs are occasionally referred to as producers since they grow their nourishment. Although the most well-known autotroph is a plant, there are numerous more types of autotrophic creatures.
What exactly are heterotrophs and autotrophs?Autotrophs are referred to as producers since they can generate their food using energy and raw resources. Plants, algae, and several varieties of bacteria are examples. Heterotrophs are known as consumers because they devour producers or other consumers. Humans, dogs, and birds are all instances of heterotrophs.
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can someone help????
The correct answer is interphase
Answer
Interphase
Explanation:
During interphase,the cell grows and the unclear DNA is duplicated
If each eukaryotic cell nucleus contains the full set of genes,could you make a full organism clone from a heart cell Alone?
A component of a circuit changes, as shown below. How would this change affect the electric circuit? A switch is closed, so the circuit would be incomplete and broken and the lights in the circuit would not shine. A switch is closed, so the circuit would be complete and unbroken and the lights in the circuit would shine. A switch is opened, so the circuit would be incomplete and broken and the lights in the circuit would not shine. A switch is opened, so the circuit would be complete and unbroken and the lights in the circuit would shine. Mark this and return Save and Exit
Answer:
A switch is closed, so the circuit would be complete and unbroken and the lights in the circuit would shine.
Explanation:
The image shows an open switch to a closed switch.
A closed switch represents a complete circuit, and an open switch represents an incomplete circuit. The lights would shine and the circuit would be complete because the switch is now closed.
The change affects the electric circuit as A switch is closed, so the circuit would be complete and unbroken and the lights in the circuit would shine. The correct option is B.
What is an electric circuit?When an electric charge builds up inside of an object, it disperses across its surface and stays there until it can be discharged by an electrical current or electrical discharge; this is known as "static electricity."
From an open switch to a closed switch is shown in the image. An incomplete circuit is represented by an open switch, and a complete circuit is by a closed switch. The switch is now closed, so the lights would turn on and the circuit would be complete.
Therefore, the correct option is B. A switch is closed, so the circuit would be complete and unbroken and the lights in the circuit would shine.
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The question is incomplete. Your most probably complete question is given below:
The image is attached below
PLEASE HELP ME
8. In rabbits, the allele for black coat color (B) is dominant over the allele for brown coat color (b).
Two black rabbits are mated. They produce some offspring that are black and some that are
brown. What are the genotypes of the parents?*
using the information from question #8, what genotypes are possible among the offspring?
1. BB, Bb and bb
2. BB and Bb
3. BB and bb
Answer: Answer 2
Explanation:
Because the other bunny is BB or Bb.
Which of the following is an example of descent with modification
This will lead to change in populations over generations in a process that Darwin called descent with modification. ... One of the best examples has been demonstrated in the very birds that helped to inspire Darwin's theory: the Galápagos finches.
a mechanism for evolution; all organisms are related through descent from an ancestor; descendants accumulated adaptations; descent of all organisms from an ancestor that lived in the past; descendants accumulated diverse modifications (adaptations)
if the first one doesnt work try the second
An example of descent with modification is a bacterium that inherits a gene for antibiotic resistance, has a more significant possibility of survival. Natural selection then applies that resistance through the population, forcing scientists to come up with a new antibiotic.
What is darwin's theory of descent with modification?Darwin described evolution as "descent with modification," the theory that species evolve over time, give rise to new species and transmit a common progenitor.
The means that Darwin proposed for evolution is natural selection.
Thus, a bacterium that inherits a gene for antibiotic resistance, is an example of descent with modification.
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Many scientists are concerned that the Ogallala aquifer in the United States is being depleted at an alarming rate. What would most likely be a major effect of this aquifer running dry?
Many crops would die because irrigation water would be limited.
The water cycle would come to a halt in the area.
Farmers would have to water crops with salt water.
Most people in the United States would not have drinking water.
Answer:
Many crops would die because irrigation water would be limited.
Explanation:
Answer:
Many crops would die because irrigation water would be limited.
Explanation:
What is the importance of cell membranes to supporting life?
Answer:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell. I hope this helps you :)
Which of the following adaptations helps alpine animals deal with the high elevation?
A) migration
B) large stomachs
C) hibernation
D) insulating feathers
E) higher levels of hemoglobin
need help please help
Answer:
well i would help if i could see the question
Explanation:
cell structure matching ( help don't know)
Answer:
so the a goes down and up and then it finds two pretty bestfriends
What percent of the offspring will be red, if we cross two pink tulips?
Answer:
50%
Explanation:
Answer:
0%-25% depending on if the tulips are hetero zygous or homo zygous.
Explanation: