Write an example of DNA before and after a point mutation
Answer:
An example of DNA is the chain of basic materials in the chromosomes of the human cell.
After mutation, the DNA sequence is changed.
Which type of reproduction produces offspring with more genetic variations?
(Include the terms "mitosis" and "metosis" in your answer)
Answer: Meiosis
Explanation:
Mitosis results in clones that are genetically identical to their parents. Meiosis has processes like crossing over and the law of independent assortment which allow for genetic variatoin and recombinants.
As a participant in a study, Mary knew that the researchers believed if she worked under quiet conditions her productivity would increase. As a result, her productivity at work did increase. What appears to have happened?
a
participant bias
b
hindsight bias
c
researcher bias
d
confirmation bias
How much time would it take to perform 3200 J of work with a power
output of 160 Watts
Explanation:
p =w/t
160=3200/t
t=3200/160
t =20second
What is one reason a cell would need to divide?
Answer:
Why Do Cells Need to Divide. Organisms, either unicellular or multicellular, are made up of cells. One of the characteristic features of cells is the division. Cells divide for many reasons, including growth, repair and regeneration, and reproduction. The two types of mechanisms of cell division are mitosis and meiosis.
Explanation:
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Answer:
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P S Q R The biological levels of organization range from a single organelle all the way up to the biosphere in a highly structured hierarchy. Multicellular organisms are organized from the simplest to most complex: cells, tissues, organs, organ systems, organisms. Evaluate the model above. Select ALL of the statements that accurately depict the examples shown in the model. A) R shows an animal cell. B) O shows types of tissue. P shows organs in the endocrine system. D) P shows an organ system, the digestive system. E) S shows an organ system, the digestive system.
Answer: the red thing pretend is blood and blue thing is water you first ta
Explanation:
Answer:
A) R → Q → P → S
Explanation:
I just took the test on USA Test Prep
Hi! Could You Help Me? - Pick A Scenario That You Believe Will Have The Greatest Impact On A Food Web In Your Local Ecosystem And Explain -
When you were born you were 22 inches long now you were about 60+ inches long how do you account for this 40+ inches of growth?
pacyber.Ims.linc
Population after
natural selection
Original
population
21.
The transition of light colored moths in an original population into dark colored moths after
natural selection occurs is a classic example of
A.Normal selection.
B.Directional selection.
C.Sexual selection.
D.Disruptive selection.
PS: PLEASE DO NOT PUT A LINK I AM NOT GOING TO OPEN THE LINK IN THE ANSWER SECTION!!
what are the improvements in human society that have allowed the human population to increase in size exponentially? (choose all that apply)
a. agriculture
b. cleanliness
c. industry
d. medicine
Answer:
medicine................
Answer:
a. agriculture
b.cleanliness
d. medicine
Explanation:
took the test! :)
True or False?
The convection currents in the mantle
are mainly caused by heat coming
from the core.
Answer:
true
Explanation:
convection currents occur when a heated fluid expands, becoming less dense, and rises. The fluid then cools and contracts, becoming more dense, and sinks
heat go up, cold go down. they cycle.
Answer:
False
Explanation:
which of the following element is not present in proteins
Answer:
Protein: a compound made of amino acids. Each amino acid is made of carbon, hydrogen, oxygen, and nitrogen. Most proteins also include sulfur.
Which means the only choice left is helium
i hope this is the answer you are looking for
The ecosystem with the greatest sustainability will be the one that has the
Answer:
Different organisms or animals
Explanation: In a ecosystem, if you have different animals or organisms, it give them a better chance of survival, reason being that they can choose to eat whatever animal or organism they want because there is lots of animals to choose from the ecosystem. Basically the more diversity you have, the better chance you will survive, and the less diversity you have, the less chance of survival.
The change in heart rate that occurs between 1 and 5 minutes of exercise is an adaptation that
A. Reduces the rate at which oxygen is carried to the muscle cells
B. Increases the rate at which carbon dioxide is carried to the muscle cells
C. Results in the production of more ATP in muscle cells
D. Slows the destruction of enzymes involved in respiration of muscle cells
Answer:
C. Results in the production of more ATP in muscle cells
Explanation:
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Frost forming on grass in the morning
PHYSICAL OR CHEMICAL CHANGE
Answer:
Physical
Explanation:
A physical change can be undone. A chemical change cannot. The frost on the grass will melt, therefore it can be undone.
Answer:
The answer should be physical change.
Explanation:
If not then im very sorry but I did learn this so I am pretty sure it is physical change.
Pls help meeee I’m stuck and thank you so much
Answer:
The answers is b
Decomposers (like bacteria and fungi) are not included in this food web. Explain the role of decomposers in nature. Why are they so important?
I NEED HELP WITH THIS PLEASE!!!!
Answer:
please give me brainlist and follow
Explanation:
Thanks to decomposers, nutrients get added back to the soil or water, so the producers can use them to grow and reproduce. Most decomposers are microscopic organisms, including protozoa and bacteria. ... Instead, fungi get all their nutrients from dead materials that they break down with special enzymes.
Please help and thank you whoever you are
Why is the sea otter's diet of seafood a problem with some of the fisherman?
Answer:
Sea otters, because of their eating habits, are considered a “keystone predator,” predators that keep the ecosystem balanced. ... When not enough otters are around to eat the sea urchins, the urchin colonies grow unchecked and “urchin barrens” increase.
Explanation:
Someone please please help me with this !! I would really appreciate it
Answer:
A
Explanation:
Because you would have to have a high mobility to get food and take of without being hit.
What is the range for the following set of measurements?
3.1 mL, 2.7 mL, 4.6 mL, 1.9 mL, 8,7 mL
Bacteria Natural Selection
Answer:
Bacterial resistance arises through the simple process of natural selection. Bacteria divide rapidly, but DNA replication is imperfect. In the presence of antibiotics, while most bacteria are killed, a small number of resistant mutants may survive and take over.
Explanation:
why are species going extinct before we know they exist?
Which of the following sentences are the best short summary for a flashlight?A A flashlight flashlight has has many many uses.uses.A A flashlight flashlight is is able able to to create create light light energy, energy, which which allows allows us us to to see see in in the the dark.dark.A A flashlight flashlight is is a a necessary necessary tool tool for for every every household.household.A A flashlight flashlight is is a a portable, portable, battery-battery-operated operated device device that that makes makes light.light.
Answer:
The last one
Explanation:
Flashlight is a portable, battery-operated device that makes light.
A flashlight is a portable, battery operated device that makes light is the best short summary for a flashlight.
What are the features of flashlight?A flashlight or torch is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes since the mid-2000s.
The three main features for a flashlight are Dimensions, Battery, and Light. Each of these characteristics are very important when it comes to selecting a flashlight.
Flashlights are used as a light source outdoors, in places without permanently installed lighting, during power outages, or when a portable light source is needed.
Learn more about flashlight:
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These animals all have similar
structures, but are not closely
related. Why do they all have
wings?
A. They have the same solution to the
same problem - escaping predators by
flying.
B. They each came up with a different
solution to the problem of escaping
predators.
C. They have a common ancestor that
had wings.
D. It is unclear why they have wings.
is the cell membrane organelle, cell tissue, organ, organ system organismis
Answer:
The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.
Explanation:
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Regular periods of overeating followed by self-induced vomiting are associated with which physiological disorder?
A. Anorexia
B. Bulimia
C. Obesity
D. Parkinson's
Answer:
B. Bulimia
Explanation:
See below for a description of each case:
Anorexia (also known as Anorexia nervosa) is an eating disorder characterized by abnormally low body weight. It's similar to the starving of oneself to achieve lower weight, but this is unhealthy. It's very common (more than 3 million cases per year in US) and is treatable. This can last for several months or years and is more common in females from ages 18–35.
Some symptoms include:
Extreme weight loss
Thin appearance
Fatigue and insomnia
Bluish discoloration of the fingers
Hair that thins, breaks or falls out
Amenorrhea (absence of menstruation)
Dry or yellowish skin
Dehydration
Bulimia (also known as Bulimia nervosa) is an eating disorder characterized by binge eating, followed by methods to avoid weight gain (ie. vomiting). It's very common (more than 3 million cases per year in US) and is treatable. It can last several years or be lifelong and are more common in females from ages 18–35.
Some symptoms include:
Binge eating
Forceful vomiting
Long-term fear of gaining weight
Overuse of laxatives or diuretics
Use of supplements or herbs for weight loss
Excessive exercises
Stained teeth (from stomach acid)
Obesity is a condition characterized by abnormal or excessive fat accumulation. It's extremely common (more than 3 million cases per year in US) but is treatable. It can last several years or be lifelong. Family history may increase likelihood for some types.
Some symptoms include:
Above average body weight
Sleep apnea- a condition in which breathing is irregular and periodically stops during sleep
Skin problems caused by moisture that accumulates in the folds of your skin
Osteoarthritis in weight-bearing joints, especially the knees
Parkinson's disease is a chronic and progressive movement disorder, meaning it weakens the control of movements of the body over time. It's fairly common (more than 200,000 cases per year in US). There are treatments to manage the condition but there is no known cure. This can last several years or be lifelong. It's more common in 60+ years old males.
Some symptoms include:
Tremors, trembling of hands, arms, legs, jaw and face
Stiffness of the arms, legs and trunk
Slowness of movement
Poor balance and coordination
Speech difficulty
Describe asexual reproduction in your own words
Explanation: person,organism. that has no sexual feeling or thoughts about it
Answer:
Asexual reproduction is the process where an organism gives life to an identical genetic offspring, multiplying themselves
Explanation:
On the African savanna, grasses feed wildebeest, gazelles, and hares. Lions, hyenas, and cheetahs hunt the wildebeest and gazelles. Vultures eat the remains from predator kills. Bacteria and fungi break down anything that is left over from the carcasses. Dung beetles eat the feces left behind from grass-eating animals like hares and elephants.
Which organism is a detritivore in this example?
Answer:
dung beetles
Explanation:
they reuse our waste for their needs
