I need help i will love you forever I need to get my grade up by the end of today
She/They idc if u don't want to see my pronouns I want u to see them
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BIOLOGY DNA SECTION 1
1. Why does DNA replicate?
2. Is DNA replication describe as conservative or semi-conservative? Why?
3. What 2 enzymes are used during DNA replication? Describe what each does during replication.
4. When does DNA replication occur in a cell?
5. Where does DNA replication occur in a cell?
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1. to ensure continuity and preservation of genetic material.
2.semi conservative
3.a DNA polymerase : unzip the DNA strand.
b Helicase : unwind dna strand
4.during the s stage of interphase
5. Nucleus
A cheetah, like those shown below at left, and a paramecium, like the one shown below at right, are both living things. According to the cell theory, what can you conclude about these two very different organisms?
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The correct option for this question is as follows:
a) they are made of many cells
b) they are made of one or more cells
c) they come from the same kind of cell
d) they come from noncellular structures
Answer:
The correct answer is - option b. they are made of one or more cells
Explanation:
The cell theory has three major parts that are; the cell is the basic and physiological unit of the organism, all living organisms are made up of one or more cells, new cells come from the pre-existing cells.
On the basis of the cell theory, we can say that all organisms including the cheetah that is a multicellular organism or paramecium a single-celled organism, are made up of one or more cells.
Plzz help! Look at my previous question.
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Ok, hang on. I am gonna go look at it...
What characteristics do all living things share?
A: They contain DNA
B: They are made up of many parts
C: They reproduce by mitosis
D: They need oxygen to survive
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Answer:
c. How do the positions of the Sun and the tilt of Earth cause seasons?
Explanation:
Answer: C would be best answered by using a model
Explanation:
for each genotype below indicate whether it is dominant or recessive
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Solving from row to row(left to right then go down one)
1) dominant dominant dominant dominant recessive dominant recessive dominant dominant recessive recessive dominant dominant dominant dominant
What are some of the main characteristics of cardiac muscle that make them distinct from the other two types of muscle cells? Why are these characteristics important for understanding the functions of cardiac muscle?
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Answer:Four characteristics define cardiac muscle tissue cells: they are involuntary and intrinsically controlled, striated, branched, and single nucleated.
Explanation:on
1. A ________ is a push or a pull. A. acceleration
B. force C. motion D. velocity
2.The force resulting from the pull of Earth on an object ject A. mass
B. gravity
C. weight
D. acceleration
3. The force that one surface exerts on another when the two rub against each other is called
A. gravity
B. Inertia
C. friction
D. acceleration.
4. When you slide a box across the floor what force must your push be stronger than?
A. support force B. friction force C. gravity
D. air resistance
5. The moon has a smaller mass than the Earth. If you were able to travel to the moon your weight would...
A. increase
B. decrease
C. stay the same
D. vary with day and night
asap
thank u
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Answer:
1. B
2.B
3. C
4. B
5. C
Explanation:
Choose all the answers that apply. The atmosphere: is mostly made of nitrogen is weightless protects earth from harmful radiation contains water vapor is affected by events in the hydrosphere
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Answer:
The atmosphere: is mostly made of nitrogen, protects the Earth from harmful radiation, and contains water vapor.
Explanation:
The atmosphere can be defined as the gassy wrapping covering a planet, in this case, the Earth.
The Earth´s atmosphere is composed of water vapor, N₂ (78.08%), O₂ (20.95%), Ar (0.93%), CO₂ (~0.03%), and Oz (0.01%). There are also other gases in reduced concentrations. Water vapor might reach 4% of the atmosphere near the Earth's surface. Water vapor and ozone absorb infrared radiation and are important in defining the terrestrial clime and keeping the environmental conditions needed for life. They protect the Earth from harmful radiation.
The atmosphere is composed of different layers: troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The troposphere is the most inferior layer, in contact with the Earth´s surface, composing almost 90% of the atmospheric mass.
Answer:
is mostly made of nitrogen, protects the Earth from harmful radiation, and contains water vapor
Explanation:
At boxing practice, Nathan works with his coach to improve the strength of his punch.
Nathan says that the reason the bag is heavy is so that it can absorb plenty of elastic potential energy. Is he correct?
Answer Choices
A. Yes, he is correct.
B. No, the bag absorbs thermal energy.
C. No, the bag absorbs gravitational potential energy.
D. No, the bag is heavy so that its mass will only accelerate a small amount when he punches it.
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WILL MARK BRAINLIEST PLS HELP
Many biotic factors affect individuals in a population. Which of the following is an example of an organism being directly affected by a biotic factor?
A plant is located in a room with no light source.
A chipmunk hibernates when the temperature gets colder.
A maple tree growing on a hillside washed away in a flood.
A squirrel has water and a nest but cannot find a mate
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Answer:
A plant is located in a room with no light source
Answer:
The maple tree would most likely the answer
Explanation:
This is because its shaping its environment
1. Which statement regarding these
methods of reproduction is correct?
(1) They are both forms of asexual
reproduction.
(2) They are both forms of sexual
reproduction.
(3) Method A is a form of asexual
reproduction and method B is a form of
sexual reproduction.
(4) Method A is a form of sexual
reproduction and method B is a form of
asexual reproduction.
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Do you have a like text book for this for me to answer?
What is CRISPR-Cas-9? a A medical device made of titanium that cuts genes. b A metal tool used for cloning animals. c A gene editing tool used to cut specific genes
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Answer: C. A gene editing tool used to cut specific genes.
Explanation:
CRISPR is simply a family of the sequences in DNA thst are found in certain organisms like bacteria. They are used in the detection and also in destroying DNA.
The CRISPR-Cas9 enables geneticist to
remove or alter parts of the gene. It is a simple, and precise method for manipulating genes.
Answer:
C. A gene editing tool used to cut specific genes.
Explanation:
Hope this helps
How are meiosis and mitosis similar?
O A. They happen at the same time.
B. They both produce new cells.
C. They both produce sex cells.
D. They both produce diploids.
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Answer:
Both creates new cells
Explanation:
Meiosis and mitosis both results in the production of new cells. Therefore, the correct statement is option B.
What is meiosis?Mitosis and meiosis result in cell division and the production of new cells. In mitosis, two genetically identical daughter cells are formed by a parent cell and are responsible for the asexual reproduction of organisms.
In meiosis, four daughter cells are formed from a single parent cell which is genetically diverse, and each daughter cell receives half the number of chromosomes present in the parent cell. Meiosis is the process by which gametes (sex cells) are produced in organisms, and it is responsible for the sexual reproduction of the organisms.
Therefore, both mitosis and meiosis result in the production of new cells. However, mitosis results in the production of two identical daughter cells, whereas meiosis results in the production of four genetically diverse daughter cells.
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1 pts
Which of the following statements most correctly explains why the genetic code is referred to as a universal code?
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plzzzzzz i need help it’s due soon!
what do both the liver and the pancreas do for the body besides for aid in the digestive process
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Answer:
The liver digests food by producing bile to break down fats, removing toxins and breaking down and storing some vitamins and minerals.
A scientist observes a geyser erupting. Which two objects must be interacting beneath the surface?
O well and spring
O spring and magma
O magma and groundwater
O groundwater and unsaturated zone
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Answer:
c
Explanation:
Magma and groundwater are responsible for the eruption of geyser.
GeyserGeyser eruptions are as a result of the conversion of thermal to kinetic energy during decompression.
When the groundwater deep in the ground is heated up by magma, pressure is released and the water will erupt out of the ground as a geyser. Eruptions occur about every 50-100 minutes.
Find out more on Geyser at: https://brainly.com/question/79492
which substance is the focal point of climate models such as sea ice, heat and salinity exchange, and phase changes?
A. Methane
B. Carbon dioxide
C. Water
D. Nitrogen gas
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Carbon dioxide is the focal point of climate models. The correct option is B.
What are climate models?Climate models, also widely recognized as general circulation models, employ mathematical equations to describe how matter and energy interact in various areas of the ocean, atmosphere, and land.
Its focal point is carbon dioxide that can correlate with sea ice, heat and salinity exchange, and phase changes.
Thus, the correct option is B.
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Given the DNA sequence TAC, what is the tRNA anticodon?
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Answer:
ATG
Explanation:
T (thymine) pairs with the base A (adenine) and C (cytosine) pairs with the base G (guanine)
Answer:
The correct is UAC.
Explanation:
I will be back to explain. I do not remember at the moment. Also I took a test and the person that said ATG is wrong.
You are a genetic counselor. A couple comes to you for advice. The female is eight weeks pregnant with their first child. Both are Ashkenazi Jews, a segment of the population in which Gaucher disease is relatively common. Gaucher disease is a condition that can range from mild and treatable symptoms to severe, debilitating problems. The disease is an autosomal recessive pattern. Which of the following statements is true?
The child will likely have Gaucher disease if she has inherited recessive alleles from each parent.
The child will likely have Gaucher disease if she has inherited one dominant allele from her father.
The child will only have Gaucher disease if she has inherited both dominant alleles from her parents.
The child will only have Gaucher disease if she has received one recessive allele from her mother.
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D is ruled out because if the child only received one recessive allele but her other allele is dominant, then the most she could be is a carrier. Dominant over recessive.
C is wrong because the question states that the disease is a recessive pattern, while C is stating that the child would only have it if it inherited dominant alleles.
B is wrong. Like D, it’s dominant over recessive and the most the child could be is a carrier.
Therefore, I believe the answer is A, the first one.
plsss help!!!
Which of the following images show high air pressure? (2 points)
A and B
A and D
B and C
C and D
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the answer is A and D
Answer:
creo que es la c
Which unmanned craft is used to collect data about bodies in space?
rover
satellite
space probe
space station
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Answer:
Space probe
Explanation:
Probes send data back to earth for scientists to study. Sputnik 1 was tbe first probe to go into soace
how would an animals color help it survive? give an example
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Answer:
A lion hides in the tall dunes and yellowish collored grass which makes in invisible to other animals nad helps it get prey and not get attacked by hyenas.
Explanation:
Answer:
An animal's color could help it survive by blending into its surroundings so it is less visible to predators and prey.
Example: A polar bear's fur is white, and all the snow in Antartica is also white. Therfeore, it is hard for predators to find the polar bear and for prey to escape because they don't see the polar bear.
Hope this helps! If it did, please give me brainliest! It would help me a lot! Thanks! :D
______ is a source of genetic variation that involves the swapping of sections of chromosomes during meiosis
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Answer:
Crossing over.
Explanation:
I do believe that is the correct answer.
Can yall help me I'm confused on this
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Answer:
Have any more questions?
Choose 3 activities that you perform regularly and explain the role(s) that each organ system plays in each activity, as well as explain how organ systems work together to perform the chosen activities.
Examples of activities students might choose:
• Arts (drawing/painting, dance or music performance, acting)
• Athletics (exercises/workout routines, sports)
• Food/Culinary-related (cooking, eating different cuisines)
• Other hobbies (video games/TV)
• Other student choices?
Connections with your chosen activities may be:
• Direct – How are your chosen activities directly controlled/performed by different organ systems and processes in the body?
• Analogies – How are your chosen activities similar/analogous to different organ systems and processes in the body?
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Answer:
When you breath, your lungs expand filling the blood with oxygen, when you eat, the food breaks down in your stomach causing the nutrients from the food to be absorbed by your body/blood, when you play sports or exercise that newly oxygenated/nutritionized blood is then pumped faster through the body by the heart.
I hope i understood the question and gave you a helpful answer :)
can someone answer this pls??
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Answer:
75% brown, 25% white
Explanation:
This question involves a single gene coding for color in chickens. The allele for brown color (B) is dominant over the allele for white color (b).
According to this question, a brown rooter with genotype 'BB' was crossed with a white hen (bb). The offsprings in the F1 generation will all possess the 'Bb' genotype and be brown colored. However, if these F1 offsprings are self-mated i.e Bb × Bb, the proportion of F2 offsprings will be 1BB, 2Bb, 1bb.
Since BB, Bb and Bb offsprings are Brown in color and bb is white in color, this means that the expected phenotypic appearance of the F2 offsprings will be:
¾ or 75% brown and ¼ or 25% white
What is a polar molecule?
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Answer:
This your answer below the image!!!
Explanation:
Healthy ecosystems depend on–
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Healthy ecosystems depend on a variety of factors working together in balance.
Some key factors include:
1. Biodiversity: Healthy ecosystems have a rich variety of species, including plants, animals, and microorganisms.
2. Nutrient Cycling: Ecosystems rely on the cycling of nutrients, such as carbon, nitrogen, and phosphorus, to support the growth and survival of organisms.
3. Energy Flow: Ecosystems depend on the flow of energy from the sun. Producers, such as plants and algae, convert solar energy into chemical energy through photosynthesis.
4. Interactions and Relationships: Healthy ecosystems are characterized by complex interactions and relationships among organisms.
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WILLGIVE BRAINLIEST PLS HELP ME WITH THISS
1-8
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Answer:
There is no picture
Explanation:
Answer:
where the questions
Explanation: