Answer:
It's a deletion, a loss of one or more nucleotides
In the 1970s, the pesticide DDT was used to kill insects that damaged fruit and vegetable crops. Most insects died from being exposed to DDT, but some survived. These surviving insects contributed to an increase in their population by
Answer:
gaining modification in their Gene's which helped them to resist that particular pesticide
These surviving insects contributed to an increase in their population by passing genes for DDT resistance to the next generation.
What is a resistance gene?In order to survive, bacteria can create mechanisms known as resistance against antibiotics and antifungals. The germ's resistance mechanisms are determined by the specific proteins that DNA instructs the germ to produce. Many different forms of resistance genes can be found in bacteria and fungi.
Once a bacteria have acquired a resistance gene and incorporated it into its DNA, the bacterium can dominate other bacteria and convey the resistance gene to all of its offspring. Bacteria reproduce quickly, which amplifies resistance.
Hence, These surviving insects contributed to an increase in their population by passing genes for DDT resistance to the next generation.
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I NEEEED HEEELP PLZZZZZZZZ :))
Answer:
They would have both black and white feathers because codominance means that both genotypes have to be expressed. Gray isn't an apparent (given) trait.
In a DNA molecule, the number of adenine bases equals the number
of thymine bases because thymine on one strand bonds to adenine
on the other strand.
True or false
It is TRUE that in a DNA molecule, the number of adenine bases equals the number of thymine bases because thymine on one strand bonds to adenine on the other strand.
DNA COMPOSITION:
DNA is composed of nucleotides subunits. There are four nucleotides present in the DNA molecule namely: Adenine, Cytosine, Guanine and Thymine. Adenine and Thymine hydrogen bond together while Cytosine and Guanine hydrogen bond together i.e. A-T, G-C. According to Chargaff rule, the amount of adenine bases equals the amount of thymine bases while the amount of guanine bases equals the amount of cytosine bases. This is because adenine on one strand of DNA bonds to thymine on the other strand of DNA, hence, they must be in the same amount.Learn more: https://brainly.com/question/12683542?referrer=searchResults
what is the function of the pupil and Iris
The iris controls the amount of light that enters the eye by opening and closing the pupil. The iris uses muscles to change the size of the pupil. These muscles can control the amount of light entering the eye by making the pupil larger (dilated) or smaller (constricted).
Answer:
The iris controls the amount of light that enters the eye by opening and closing the pupil. The iris uses muscles to change the size of the pupil. These muscles can control the amount of light entering the eye by making the pupil larger (dilated) or smaller (constricted)
Explanation:
Hope this help you....But if it's not,im so sorry...
Have a nice day
which body system is repsoible for the production of estorgen in human females
Answer:
In women, estrogen is produced mainly in the ovaries. Ovaries are grape-sized glands located by the uterus and are part of the endocrine system. Estrogen is also produced by fat cells and the adrenal glands.
what is the cell related to chromosome number, and is produced by mitosis STARTING WITH D
Answer:
Diploid
Explanation
Among sexually reproducing organisms, the number of chromosomes in the body (somatic) cells is diploid (2n; a pair of each chromosome)
Mitosis produces 2 diploid cells.
30. What is the name of the process by which new cells are made for growth and repair?
Answer:
cell division
Explanation:
This is where cells would get damaged or die and this process calls cell division occurs
Answer:
cell division,the process of mitosis
Which best describe the structure of DNA?
Answer:
DNA structure
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
Explanation:
Tornadoes, blizzards, thunderstorms and hurricanes can be classified as?
A: non severe weather
B: severe weather
C: climate
D: temperatures
Answer:
B. Severe Weather.
Explanation:
Hope this can help!
which variable appears to be the control Leaf production in these plants
Answer:
The correct answer is D.
Explanation:
The Temperature
Hope this helps!! ;)
Also scary story for all!!! Enjoy!!
The Haunted Forest
Once upon a time there was a family, made up of two young ones and their parents, traveling by road to road. One day the car broke down in the forest. The parents went out to get help, and so the children would not get bored, they left them with the radio on. It turned night time and the parents still did not return. Then suddenly they heard the disturbing news go on in the radio: A very dangerous killer had escaped from a prison near the forest. Hours passed and the children's parents did not come back. Suddenly, they began to hear something really loud. ¨Bang, Bang, Bang¨. They heard that which seemed to come from something hitting the top of the car. Then, the sound became louder and louder every time. ¨BANG, BANG, BANG¨. The terrified children could no longer resist. They opened the door and ran in a hurry. Only the eldest of the children dared to turn his head to see what caused the loud noise. He should have not done it though, there was a large and scary man on top of the car, who hit the top of the vehicle with something on his hands, they were the heads of his parents! The children began to run even faster and the large man began to run towards them. The children ran into the forest and so did the large man. After that day no one ever saw those children ever again, and who knows, they may appear mysteriously next to you.
Hope you enjoyed!! ;)
Answer:
d
Explanation:
I NEED HELP PLEASEE :PPP
Answer:
c
Explanation:
\Which statment explains how cellular respiration and photosytheis are opposite processes. a Cellular respiration uses carbon dioxide to break down glucose, then oxygen and water are released as waste. Photosynthesis uses carbon dioxide and water to make glucose, then oxygen is released as waste. b Cellular respiration uses light energy to break down glucose, then oxygen and water are released as waste. Photosynthesis uses carbon dioxide and water to make glucose, then oxygen is released as waste. c Cellular respiration uses oxygen to break down glucose, then carbon dioxide and water are released as waste. Photosynthesis uses oxygen and water to make glucose, then carbon dioxide is released as waste. d Cellular respiration uses oxygen to break down glucose, then carbon dioxide and water are released as waste. Photosynthesis uses carbon dioxide and water to make glucose, then oxygen is released as waste.
what effect does pH of water have on radish seed germination?
Explanation:
High pH negatively affected the germination rate of seeds from most species, but had no effect on the per cent germination of any of the species. The higher concentration of the nutritious solutions affected negatively the germination level and rate.
Answer:
A radish seed has a high percentage of germination in PH's 4-12 and a very low percentage of germination in PH 1-3 and PH 13-14.
how barometer helps in agriculture
why is there a need to protct our forests coral reefs and mangrove swamps?
Answer:
If we don't protect our forests, they get either get burned or cut down so that people can build more places or more space for crops. If we have little forest, there will be little oxygen in the air and we will die, global warming will also increase. Coral reefs are meant to protect the sea from inhumane acts which pollute the sea and cause marine animals to die, if they die the sea will be very polluted and marine animals might become extinct. Mangrove swamps are a habitat to many different animals, if they are gone the animals will have no habitat to live in and might soon face the consequences of extinction.
PLEASE HELP ASAP !!! The model represents mutations in two non-homologous chromosomes. The letters represent genes.what does this model represent?
a ) translocation during crossing - over
b) point deletions that occur spontaneously
c) point insertions that occur during the cell cycle
d ) missense mutations that do not affect traits
Answer:
a ) translocation during crossing - over
The model this represents is an option a. translocation during crossing-over
What is translocation?Translocation refers to when the location is changed. In other terms, it is genetic which means at the time when the chromo-some part should be shifted to the other chromo-some. Here chromo-some should be structured that carry the gene.
Since the model shows the mutations in the 2 homologous chromosomes so the model this represents is an option a
Therefore, The model this represents is an option a. translocation during crossing-over
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Why is it possible that two ecosystems with identical conditions of temperature and precipitation, could support different plants?
Answer:
Because even if they are similar, they still have a difference between them, and that difference helps other plants.
It is possible because plants require other factors like sunlight and soil nutrients) other than Temperature and precipitation to grow
Plants require some Important factors for its growth and development and they are :
Temperature precipitation Sunlight soil nutrients type of soilThe two ecosystems with identical conditions of Temperature and precipitation might have differences in the amount of sunlight they receive and the Nutrients contained in its soil. therefore the ecosystems although similar can support different plants based on the difference in the amount of sunlight and Nutrients contained in the soil.
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Multiple Choice
A student observed bees flying between flowers on a squash vine. after researching this activity, the student learns that bees obtain nectar from the flowers. The pollen from the flowers sticks to the bees and is transported to another flower of the same species, resulting in pollination. The student decides this is an example of mutualism. Which table explains why this relationship is mutualism?
Answer:
The answer is D
Explanation:
Flowers and bees both benefit from pollination so D
Answer: that should be d
Explanation:
What are the two most common sources for rivers and streams?
Answer:The source of a river or stream may be a lake, a marsh, a spring, glacier, or a collection of headwaters. The furthest stream is called the headstream. Headwaters are small streams that create the river or stream and may be cool waters, because of shade and barely melted ice or rain.
Explanation:I did this in class 2 days ago LOL
Answer:
The source of a river or stream may be a lake, a marsh, a spring, glacier, or a collection of headwaters. The furthest stream is called the headstream. Headwaters are small streams that create the river or stream and may be cool waters, because of shade and barely melted ice or rain.
Explanation:
Hope this helped you :D
I NEED HELP WITH BOTH OF THESE
PLEASE HURRY
Answer:
18. Which four body systems interact to allow a person to sneeze:
F. Muscular, immune, nervous, respiratory.
Don't really know the answer for the second one, sorry <33
HOW AND WHY HAS THE SEA-TURTLE CHANGE?
Plz I really need help I don’t know what to write
Kai has a see-through glass tank with air, plants, and animals that eat
those plants. He sealed the tank so no material can get into or out of it,
but light can get in when the tank is not covered.
The light for the tank has been on all day, and Kai measured the carbon
in the air and found that it is decreasing. How is carbon moving between
the air and the living things in
the tank? What is happening to the amount
of carbon in living things?
Just tell me those two questions plz help me I will give you my points I swear plz help me I beg you
The amount of carbon is captured by plants to perform photosynthesis as a light for the tank has been on all day and prepare their own food. The product of photosynthesis is consumed by other organisms to perform cellular respiration.
What are the components of photosynthesis?The components of photosynthesis may include carbon dioxide, water, and sunlight as raw materials to convert into glucose (a food molecule).
The amount of carbon will not remain the same for the entire time in the living organism. The cycling of carbon is processed synergistically during photosynthesis and cellular respiration.
Living things in the tank respire out carbon, which is taken up by plants for photosynthesis, a product of photosynthesis are the reactants for cellular respiration. In this way, carbon delocalized among the living entities.
Therefore, it is well described above.
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Why might walking across rocks in shallow creek hurt your feet more than the same rocks would if you were in deeper water
Answer:
i think that it is different because in deep water you are more prone to not really touching the rocks with full force but in a shallow creek you are putting a lot of force onto the rocks making it hurt more.I hope this answer is correct.
Explanation:
Give THREE examples of an adaptation of an organism and WHY it is considered an adaptation.
Answer:
There are three different types of adaptations: Behavioural - responses made by an organism that help it to survive/reproduce. Physiological - a body process that helps an organism to survive/reproduce. Structural - a feature of an organism's body that helps it to survive/reproduce.
Explanation:
difference between animal cells and plants cells
Answer:
A plant cell have a vacuole, chloroplasts and A cell wall
Vacuole - Gives the cell shape
Chloroplasts - Contain a green pigment (turns the plant green) To do with photosynthesis.
Cell Wall - Holds the cell up and keeps it in a rigid structure.
Where is glucose stored in the body.
Explanation:
Glucose is stored in the liver.
Please help if you have watch the Amoeba Sisters photosynthesis
what part(s) of the video you liked
what part(s) of the video you did not like
was the video was useful to you and why/why not
Explanation:
the video was really use ful I watched it a couple. of times before a test to
please help! i dont really get this at all
Answer:
The slope between the red points is 2/4 (simplified it is 1/2). The slope between the green points is 4/8 (simplified it is 1/2). This shows that by taking ANY two points on the line, you will find the same slope.
How many types of genes are there? Name them.
Answer:
Where my dear i don't know what you saying
Answer:
30,000the names of some are BcL2-associated Xprotein and BcL2 antagonist/kil 2 and B-cell CLL/ly mphom2 and brain derived nurotrophic factor
PLEASE HELP HURRY How did the owl get energy from the Sun (made their own energy, ate producers, ate consumers)? THIS IS FOR LIFE SCIENCE
Answer:The owl got energy from producers, like plants
I am sorry if I'm wrong.
Explanation:
Answer:
ate consumers
Explanation:
owls eat rodents and other small animals which eat producers