Answer:
The Sun will stop burning once all the atoms have spilt
Explanation:
After the Sun runs out of thermonuclear fuel, it will no longer be able to shine as it does now. the Sun will shrink down to a dying star, which is a white dwarf. This is usually the last stage of a star.
A man who heavily smokes has developed lung cancer. The tobacco smoke has caused mutations in some of the cells in his lungs, making them unable to stop reproducing and dividing. He is worried that his children, none of whom smoke, may have inherited the lung cancer from him. Under what circumstances might his concern for his children be justified? If his smoking had already mutated the DNA in the cells in his lungs at the time his children were conceived, the mutations would have been passed to his children. If he inherited a mutation which made him more susceptible to lung cancer, it may have been present in some of the gametes he produced and passed to his children. If the mutation resulted from the duplication of a gene in his lung cells, his children would be at greater risk than if it were caused by a base pair substitution. If the smoke had caused multiple different mutations in his lung cells, it would be more likely that one or more of the mutations would be passed to his children.
If he inherited a mutation that made him more susceptible to lung cancer, it may have been present in some of the gametes he produced and passed to his children is the circumstance that might his concern for his children be justified.
What do you mean by Mutation?A Mutation may be defined as sudden, stable, and inheritable changes in the genetic material of an organism.
Gametes of germline cells play an important role in the inheritance of mutation from parents to their offspring, which means that if a mutation has occurred in an egg or sperm cell, it will be more chances that the offspring carry mutated DNA.
Therefore, it is well-described above.
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A herd of bison is a population, ecosystem or community?
Answer:
The correct answer should be A, A population.
ANSWER IS IN PHOTO!!!!!!!!!
Answer:
B
Explanation:
The answer you are looking for is B.
DUE TODAY 60 POINTS
Consider the following process;
1. Sensory nerves signal that you are hungry.
2 You eat.
3. Food is broken down into nutrients.
4. Nutrients enter your blood.
Which of these body system does not work with your nervous system in this process?
A. The Digestive System
B. The Muscular System
C. The Skeletal System
D. The Immune System
please help me i’ll give you brainlist
Answer:
D
Hope that helped! I would appreciate a Brainliest, if you wouldnt mind! Have a good day!
The bond order for a double bond is
O A. Three
B. Two
C. Four
OD
D. One
Answer:
2
Explanation:
calculator
How does an athletic trainer use knowledge of
human anatomy and physiology? Check all that
apply.
to prevent injuries
to strengthen the body
to deal with difficult clients
to improve physical fitness
DONE
Athletic trainers use the knowledge of human anatomy and physiology to do the following:
to prevent injuriesto improve physical fitnessWho is an athletic trainer?Athletic trainer is a certified and licensed health care professional who practices in the field of sports medicine.
However, an athletic trainer must have prior knowledge of anatomy and physiology so as to carry out his duties.
Therefore, athletic trainers use the knowledge of human anatomy and physiology to do the following:
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Answer:
A) to prevent injuries
B) to strengthen the body
D) to improve physical fitness
Explanation:
Next one is,
A) to understand how parts of the body are structured
C) to understand how parts of the body work together
D) to understand how a new drug might affect the body
Help pls
Which role do plants play in the nitrogen cucle?
What factor will most impact the process of photosynthesis?
Answer:
CO2 concentration
temperature
Light intensity
Explanation:
these have impact on photosynthesis
Cells are usually very small. Why is it an advantage to have many small cells instead of one very large cell?
does RNA interference occur before or after transcription?
Answer:
controlled after transcription
Explanation:
Imagine that you are a doctor in a maternity ward. During your last shift, 20 babies were born. 10 had blue eyes, and 10 had brown eyes. Remember genotypes are the two alleles given for each trait, written with a letter. For this activity B =brown eyes b= blue eyes. Phenotypes are the physical appearance of the trait.
Which color of eyes is dominant? How do you know this? What does this mean in terms of inheritance?
5. What can't the developing fetus be tested for?
Answer:
The two main types of prenatal testing are: Screening tests. Prenatal screening tests can identify whether your baby is more or less likely to have certain birth defects, many of which are genetic disorders. These tests include blood tests, a specific type of ultrasound and prenatal cell-free DNA screening. But they can be tested,, CVS is a test where the doctor collects a tiny piece of the placenta, called chorionic villus, which is then tested to check for chromosomal or genetic disorders in the baby.
Explanation:
5 Cheryl has brown hair, green
eyes, and tanned skin. Which
of these traits results from
the environment that Cheryl
lives in?
A tanned skin
B brown hair
C green eyes
D freckles
what is the connective tissue covering the entire muscle called
Can you please help me answer this question!!
Answer:
C
Explanation:
What is the answer to this question
Answer:
c) Sunlight
I think it is c
Explanation:
Some tortoises that feed on grasses were observed on an island. Some years later, an environmental change caused the grasses to grow a bit higher off the ground. What evolutionary feature will you expect to see in the tortoises on the island?
A.
The tortoises will develop longer necks.
B.
The tortoises will develop thicker shells.
C.
The tortoises will develop longer tails.
D.
The tortoises will develop thicker tongues.
Answer:
A
Explanation:
As the grass changes over time, the turtles need to change with it to be able to survive, so their necks will need to grow to reach the tall grass.
please help me i’ll give you brainlist
Answer:
1.Kingdom
2.Phylum
3.class
4.order
5.family
6.genus
7.species
A bird-watcher sees a small yellow bird in a tree. Explain to the bird-watcher how he can use a dichotomous key to identify the bird. Assume he does not know anything about dichotomous keys. Then, write two steps of a dichotomous key that would be helpful for the bird-watcher.(2 points) PLS HURRY WILL GIVE BRAINLIEST
A dichotomous key is a classification tool based on morphological or behavioral characteristics. It provides two options per feature.
What is a dichotomous key?A dichotomous key is a significantly useful tool to classify organisms.
If you have an organism -or part of it- and you need to taxonomically identify it, you use a dichotomous key.
The key provides an easy and fast way for identification by describing different morphological or behavioral traits, leading you to the correct taxonomic classification.
The term dichotomous refers to how information is provided.
You will always have two options per feature (a and b, or 1 and 2), and you will have to choose one of them according to the characteristics of your organism.
Once you choose one of the options according to your organism, the key leads you to the following description, and you will have to choose one of the options again.
You will repeat this until you reach the name of your organism.
The key describes only specific traits that are useful for differentiation.
Now, let us write two steps of a dichotomous key that would be helpful for the bird-watcher.
Description 1a ----------- The organism is a vertebrate ----------- Go to 2
Description 1b------------ The organism is invertebrate ----------- Go to 5
Description 2a ---------- The organism flies ----- Go to 3
Description 2b ---------- The organism does not fly ---------- Go to 4
Description 3a ------ The organism is yellow and sings ---- This is your bird
Description 3b ----- The organism is grey and does not sing --- This is another bird
So in this example, the key asks you if the animal you are looking at is a vertebrate or not. It is a vertebrate, so you choose option 1a and move to description 2.
In description 2 the key asks you if your animal flies or not. It is a bird and is on a tree, so does it fly. You choose option 2a and move to description 3.
Finally, the key asks you if your bird is yellow and sings or if it is grey and does not sing. You choose option 3a and the key tells you the name of your bird.
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Human impact on ecosystems would most likely lead to secondary succession over primary succession. True or false
Answer:
TRUE
Explanation:
Secondary succession can happen after primary succession or independently of primary succession. Which type of change was seen in the ecosystems affected by the 1988 fires in Yellowstone Park? Human impact on ecosystems would most likely lead to secondary succession over primary succession.
Which of the following is an advantage of hanging up clothes to dry instead
of using a clothes dryer?
A. It takes longer to dry the clothes.
O B. It uses more fossil fuels. .
C. It works only on dry, sunny days.
D. It uses no electricity.
Answer:
D. It uses no electricity
Explanation:
The process of examining evidence and linking a potential hazard to its harmful effects is known as what?
A: Toxicity
B: Anticipation
C: Fear
D: Hazard Assessment
Describe DNA replication (steps, components, molecules formed, molecules involved, etc). Describe how to replicate a sequence of nucleotides. What are the base pairing rules?
Answer:
Explanation:
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.
what are three major lines of evidence that mitochondria arose from endosymbiosis with proteobacteria?
Answer:Most important are the many striking similarities between prokaryotes (like bacteria) and mitochondria: Membranes — Mitochondria have their own cell membranes, just like a prokaryotic cell does. DNA — Each mitochondrion has its own circular DNA genome, like a bacteria’s genome, but much smaller.
Explanation:
Most important are the many striking similarities between prokaryotes (like bacteria) and mitochondria: Membranes — Mitochondria have their own cell membranes, just like a prokaryotic cell does. DNA — Each mitochondrion has its own circular DNA genome, like a bacteria’s genome, but much smaller.
The DNA, plasma membrane, and reproductive process are the evidence that supports the endosymbiotic theory of mitochondria.
What is endosymbiosis?Endosymbiosis is a process that includes the engulfing of one cell by another. It is said that mitochondria originated endosymbiotically from proteobacteria.
The presence of the mitochondrial DNA although small shows similarity to bacterial DNA. The mitochondria are membrane-bound organelle like the prokaryotic bacteria.
The reproductive process of mitochondria resembles the bacterial reproduction method. The cytoplasm and the genetic material are divided in a similar fashion.
Therefore, DNA, reproduction, and membrane are evidence of the Endosymbiotic origin of mitochondria.
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Think about the carbon cycle. Describe how each of the two systems in your experiment modeled
aspects of the cycling of carbon on Earth. Which parts of the Earth system - the hydrosphere,
atmosphere, geosphere, and biosphere – were represented by your models? Which part or parts were
missing?
To identify how your experiment represents the carbon cycle analyze how each Earth's sphere participates in the cycle and relate it to the experiment.
What is the carbon cycle?This is a natural phenomenon on Earth in which carbon circulates through different spheres.
What is the role of each sphere?Atmosphere: Contains gaseous carbon as carbon dioxide.Biosphere: Plants use carbon and release oxygen; on the other hand, animals produce carbon as a result of the breathing process.Geosphere: Contains carbon, which is the result of processes such as organisms' decay.Hydrosphere: Contains dissolved carbon.How do you relate the experiment to the natural process?Identify the components of your experiment and the way they interact with carbon.Compare this function to the function of the speheres.Relate the experiment and natural model.Note: This question is incomplete because there is not information about the experiment; due to this, the answer is based on general knowledge.
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Surface impoundments are pond-like areas that are used to hold liquid hazardous waste. Surface impoundment sites should have ______.
A: A heavy, plastic liner that keeps waste from leaking into the soil
B: Many earthquakes
C: No liner
D: Streams that flow into and out of them so that the waste can move downstream into local rivers
Answer:
A: A heavy, plastic liner that keeps waste from leaking into the soil
Explanation:
They must have a liner so that toxic wastes such as metals and others cannot seep from waste into the soil.
Will the DNA move towards the anode or cathode? Why?
Answer:
Yes, DNA is negatively charged because of the presence of phosphate groups in nucleotides. Thus, It will move towards the positive anode.
Which of these statements best explains why water flows from point A to point B?
The salinity at B is more than at A.
The wind velocity at B is more than at A.
The temperature at A is more than at B.
The water density at A is more than at B.
The statement best explains why water flows from point A to point B is The temperature at A is more than a B.
Thus option "C" is correct.
What is Thermohaline circulation?Thermohaline circulation is the circulation in oceans which are driven by differences in density. The word thermohaline means thermo-temperature and haline-salinity.
The differences in the temperature difference arise from heating and cooling at the ocean surface, freshwater fluxes, ice formation increases the salinity, ice melting decreases salinity, and precipitation also increases salinity.
Thus, option "C" is correct.
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Answer:c
Explanation:test
How does cell differentiation to the organization within a organism ?
Answer:
Cells eventually become specialized and use different parts of genes to become programmed to do special jobs and look a certain way.
Explanation: