Answers
Hope this helps
Related Questions
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
Answers
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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Can depletion of the ozone cause a rise in skin cancer among humans? Explain
Please help
Answers
How do you get rid of homologous chromosomes?
Answers
Answer:
hear is the answer hope it helps
How is the temperature of a location determined by energy from
the sun and the location's distance from the equator?
Answers
Answer:
Explanation:
HELP ASAP I AM SO STUCKKKK!!!!!!!!!!!!!!!!!!!!!
In recent decades, extinction rates have been significantly lower than normal.
-true
-false
Answers
more and more mammals are becoming extinct , and that’s probably due to humans actions
Answer:
TRUEEEEEE IS THE ANSWER MADAM
2) If the foliation on a rock is running north-south what direction is the tectonic pressure coming from?
Answers
Answer:
if the foliation on a rock is running north-south, the pressure might be vertical (for instance, up to down)
Explanation:
The pressure is the second most principal factor that influences metamorphic rocks. It originates from the weight of the own materials, their densities, and the deepness.
Litostatic pressure originates from the weight of materials in the interior of the crust.
Pressure generates alignment of materials (foliation and schistosity) and mineral rotation.
There are different types of metamorphism.
Dynamic metamorphism is the one where pressure is the principal factor. It generates by tectonic conditions, and it presents mainly in failure or fracture areas. It provokes trituration and recrystallization of minerals.
Classification of the metamorphic rocks according to their structure:
GranulationRecrystallizationMetasomatismMassiveFoliationFoliation refers to dynamic metamorphism, where pressures act and minerals orientate perpendicular to the pressure direction.
According to this concept, if the foliation on a rock is running north-south, the pressure might be vertical (for instance, up to down) while minerals' weight helping in the process of foliation.
If the foliation on a rock is running north-south, the tectonic pressure is coming from a vertical direction.
What is a foliation?Foliation on a rock means continuous multi layering on a metamorphic rock.
These layers can be thin as a sheet of paper.
Foliation occurs when the plain or elongated minerals inside a rock are pressed together and aligned.
Thus, If the foliation on a rock is running north-south, the tectonic pressure is coming from a vertical direction.
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PLEASE HELP! IM DOING A TEST!!
What do Vaccines do?
Answers
Answer: vaccines help to protect us from a disease by giving our immune system a sample so that when the real disease comes, your body will be ready to fight it off.
Explanation:
Hope that helps!
What is the genotype ratio?
Answers
Answer:
The genotypic ratio shows the number of times a characteristic of an organism will be seen in the offspring when genes for certain traits are crossed.
Explanation: hope this helps :p
Which of the following is not a principle of natural selection?
Answers
Answer: The last one on the bottom i'm in biology
The statement which is not a principle of natural selection is, in every population, adaptations allow some organisms to survive and reproduce better than others. So, the correct option is D.
What do you mean by Natural selection?Natural selection is the process through which populations of living organisms adapt and change their needs as per nature.
The given statement gives the idea of adaptation rather than natural selection. Natural selection gives the idea of competing for limited resources. Natural selection always leads to the most favorable types of variation that an individual possess.
Therefore, the statement which is not a principle of natural selection is, in every population, adaptations allow some organisms to survive and reproduce better than others.
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In the Hershey Chase experiment components of bacteriophages were labeled with radioactive isotopes of sulfur and phosphorus What was
the Hershey-Chase evperiment designed to determine?
Answers
Answer:
c
Explanation:
It was designed to determine whether the genetic material of the bacteriophage (a type of virus that infects bacteria) is made of DNA or protein.
What was Hershey-Chase experiment?The Hershey-Chase experiment, also known as the "Blender Experiment," was a classic experiment in molecular biology that was conducted in 1952 by Alfred Hershey and Martha Chase. It was designed to determine whether the genetic material of the bacteriophage (a type of virus that infects bacteria) is made of DNA or protein.
In the experiment, components of the bacteriophage were labeled with radioactive isotopes of sulfur and phosphorus. The labeled phages were then used to infect bacterial cells, and the cells were subjected to various treatments to separate the viral components from the bacterial components.
The results of the experiment showed that the genetic material of the bacteriophage was made of DNA, not protein. This was determined by the fact that the labeled DNA, but not the labeled protein, was able to enter the bacterial cells and infect them. This experiment provided strong evidence for the "central dogma" of molecular biology, which states that genetic information flows from DNA to protein, but not the other way around.
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What is a eukaryote?
Question 2 options:
organism that does not have a nucleus
organism that does have a nucleus
organism that produces its own food
Answers
Answer:
an organism that has a nucleus
Explanation:
What is a eukaryote?
1 organism that does not have a nucleus
2 organism that does have a nucleus<<
3 organism that produces its own food
4 organism that is ancient
A certain dominant gene is located on the X chromosome. A father will transmit the Gene and the resulting condition to:
Answers
Can someone please help me with this question?
Answers
Answer:
A
Explanation:
the body temperature drops below normal. All the other anwers the body compensates for the thing and stablizes it. The body temperature should incrase but it does not so it is not homoeostatis( which is keeping a balance).
Why are healthy bodies of water important to our Earth as a system?
Answers
Answer At heart, all life on Earth uses a membrane that separates the organism from its environment.
Answer:
At heart, all life on Earth uses a membrane that separates the organism from its environment. ... In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment
Explanation:
Put this In a simpler form
Why are sex-linked traits like hemophilia less common in females than males?
A. Females would need to inherit two X chromosomes containing the recessive trait.
B. Females would need to inherit one X chromosome containing the recessive trait.
C. Females would need to inherit one Y chromosome containing the recessive trait.
D. Females would need to inherit two Y chromosomes containing the recessive trait.
Answers
Answer:
A. Females would need to inherit two X chromosomes containing the recessive trait.
PLZ ANSWER ASAP I NEED HELP will mark brainliest >_
Peter is complaining of stomach pain and constant hunger. Peter’s doctor diagnoses him with a worm infection. Peter feels hungry because the worm is absorbing food from his intestines.
Peter most likely has an infection from a(n)
tapeworm.
leech.
planarian.
marine worm.
Answers
Answer:
A) Tapeworm
Explanation:
got it right on edge nuity
Peter is complaining of stomach pain and constant hunger as he was diagnosed with a worm infection.
Peter feels hungry because the tapeworm is absorbing food from his intestine as tapeworm begins to feed off your body's nutrients to grow once it invades the body.How tapeworm infection occurs?Tapeworm infection is caused by ingesting food or water contaminated with tapeworm eggs or larvae.When tapeworm hatches and attaches itself to your intestine, it starts feeding off body's nutrients causing increase in apatite (hunger increases).It grows by reproducing proglottids ( chain looking body part) and the cycle continues.Planaria upon causing infection feeds on blood cells hence can not cause apatite.Leech and marine worm can not invade the body like tapeworm and planaria.To learn more about tapeworm infections:
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1 point
The type of cellular transport shown in the image (to the right) is called
Endocytosis
Exocytosis
Osmosis
Diffusion
Answers
Answer:
Exocytosis
Explanation:
Exocytosis is when a bulk of molecules exit the cell. The arrows indicate that it is leaving the cell.
Answer:
B. Exocytosis
Explanation:
Exocytosis is the process by which vesicles in the cytoplasm fuse with the cell membrane, releasing their contents into the cell's external environment. Cellular wastes are often disposed through this process.
CAN SOMEONE PLZ HELP
1. List five organelles eukaryotes have that prokaryotes do not have.
2. Explain how the following organelles ensure that a cell has the proteins it needs: nucleus, rough ER, vesicles,
and Golgi apparatus.
3. What is the main difference between rough endoplasmic reticulum and smooth endoplasmic reticulum?
4. Describe the three types of vesicles.
Answers
Answer: 1 Lysosomes and peroxisomes, Microtubules, Endoplasmic reticulum, Mitochondria
2 The role of the nucleus of a eukaryotic cell is to control the cell. Because it contains most of the cell's DNA, which is encoded with genetic instructions, the nucleus controls which proteins the cell makes.
3 The rough endoplasmic reticulum has ribosomes on its surface. This is what give the RER a "rough" appearance. The smooth endoplasmic reticulum (SER) does not contain ribosomes. The Smooth ER looks more like tubes. The SER helps in the storage of proteins and lipids.
4 Secretory vesicles contain materials that are to be excreted from the cell, such as wastes or hormones.
Transport vesicles move molecules within the cells.
Vacuoles are vesicles that contain mostly water.
hope this helps
Answer:
sheeeeeeeeesh I agree with the other person
have a good day :)
Explanation:
What is the possible effect of high nutrient levels
In water systems
Answers
Answer:
D. Healthier Fish
Explanation:
need help asap
- 20 points , includes .
Answers
Answer:
D
Explanation:
Everything in there pollutes the environment.
Pls help it’s due in a hour!!
Use Your Art Skills
Draw a picture of something that is in motion. On your picture, label all of the forces that are acting on
the object. Include a description of how each of Newton's Laws are affecting the moving object. Take a
picture of your drawing
Make sure your picture is clear!
Answers
I'd draw a car on a hill and explain how you press the gas pedal and gravity helps push the car down the hill, or draw it going up the hill and explain how gravity makes it difficult for the car to make it up the hill.
Tim does not need to factor his amino acid consumption into the total protein intake because they are components of protein, not full protein
Answers
Answer:
Yes.
Explanation:
Yes, amino acid can not be factor or broken down because it is the smallest unit of proteins. Proteins are made up of about 20 small amino acids. Proteins can be factor into amino acids but amino acids can't be factor into proteins because proteins are made up of amino acids but the amino acids does not formed from proteins so that's why Tim does not factor his amino acid into total protein.
The grizzly bear is a mammal, belonging to phylum Mammalia and kingdom Animalia. It belongs to the genus Ursus and the species Arctos. What is the scientific name of this organism?
Answers
Ursus Arctos.........
What does a model of the carbon cycle show?
A. The amount of Earth’s carbon is constant.
B. The amount of Earth’s carbon cannot be determined.
C. The amount of Earth’s carbon decreases.
D. The amount of Earth’s carbon increases.
I think its A
Answers
Answer:
Changes that put carbon gases into the atmosphere result in warmer temperatures on Earth. This diagram of the fast carbon cycle shows the movement of carbon between land, atmosphere, and oceans. Yellow numbers are natural fluxes, and red are human contributions in gigatons of carbon per year.
The model of the carbon cycle determines the amount of earth's carbon is constant. Thus, option A is correct.
Carbon is the element that is responsible for the major life forms on earth. The conversion of carbon in varying life forms and the reservoir is given by the carbon cycle.
What is the effect of the carbon cycle on the amount of carbon?The carbon cycle is operated for the analysis of the conversion of the carbon in different states and life forms in the earth.
The conversion results in the change in the state of the carbon and its concentration in different constituents.
The earth is the reserved closed system and is consisted of a fixed amount of elements.
Thus, the amount of carbon in the earth is constant in the model of the carbon cycle. Thus, option A is correct.
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HELP PLS
Ticks are parasitic insects that feed on blood. Consider a single
population of ticks that divides into two populations. One population
feeds on the blood of mammals that live only in trees. The other
population feeds on the blood of mammals that live only on the ground.
Which observation supports the idea that speciation has occurred?
How Fa
Search fc
The tree population and the ground population of ticks cannot mate
and have offspring.
How mar
Which an
The tree population of ticks feeds more frequently than does the
ground population
Do wild re
What doe
The genes in both the tree population and the ground population of
ticks combine to form a single, large gene pool.
What doe
The ground population of ticks gets eaten less frequently by birds
than the tree population.
Answers
Answer:
ask siri 123
Explanation:
i can help
The tree population and the ground population of ticks cannot mate and have offspring indicates speciation has occurred.
What is population?"A population is defined as a group of individuals of the same species living and interbreeding within a given area."What is speciation?"Speciation is the evolutionary process by which populations evolve to become distinct species."The ticks of tree and ground population evolve without interfering with one other. Forms a different species and no mating occurs between them.Hence, the correct answer is: The tree population and the ground population of ticks cannot mate and have offspring.
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Jake is taking photos of his neighbor's home to help them list and sell the house. It is
important to have a wide variety of photos to choose from, so he is taking multiple
shots of each room--some from the doorways, some from floor-level, some from up
above, and some from a corner of the room. What is Jake playing around with as he
photographs each room?
O motivation
O decor
O lighting
O angles
Answers
Describe rainforests. Include how much rain they get, general location and temperature.
Answers
Answer:
The average temperature in tropical rainforests ranges from 70 to 85°F (21 to 30°C). The environment is pretty wet in tropical rainforests, maintaining a high humidity of 77% to 88% year-round. The yearly rainfall ranges from 80 to 400 inches (200 to 1000 cm), and it can rain hard
Explanation:
Explain how you are dependent upon at least one biotic and one abiotic factor.
Answers
Answer:
Biotic: We are dependent on plants, because we need them to eat.
Abiotic: We are dependent on water, because we need water to hydrate.
Hope this helps! <3
An example of a biotic and an abiotic factor that humans depend on are -
Biotic factor - plantsAbiotic factor - oxygenThe biotic factor is a factor that presents in an ecosystem that are living organisms and help in making and shaping ecosystems such as plants, animals, fishes, and others.
Human depends on the other organism mostly on plants for their food and energy as they can not produce their food.The abiotic factor is the nonliving factor that interacts with the living organism or biotic factors to regulate and shape the ecosystems. It includes the carbon cycle, water, oxygen, temperature, and many others.
Humans depend on oxygen for their cellular respiration that provides energy for all essential cellular functions and without oxygen, there is no life present.Thus, the correct examples are:
Biotic factor - plantsAbiotic factor - oxygenLearn more about biotic and abiotic factors:
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Kingdom protista contains organisms that do not fit into other Eukarya Kingdom. Explain 3 ways that protists are different from animals, plants and fungi.
Answers
Explanation:
Protists are eukaryotes, and most are single-celled. You can think about protists as all eukaryotic organisms that are neither animals, nor plants, nor fungi.
protists is a paraphyletic name for unicellular Eukaryota organisms.
Which statement accurately describes recent population density and shifts in Southeast Asia?
Rural towns have many of the same opportunities as urban centers
Indonesia’s capital of Jakarta has become a megalopolis.
The population is rapidly declining
Overcrowding has pushed many people to migrate from urban to rural areas.
Answers
Answer:
Indonesia's capital of Jakarta has become a megalopolis.
Explanation:
I took the test
Answer:
Many city people are very poor and live in urban slums.
The greatest population densities are on the coasts, along the rivers, and in deltas.
Indonesia’s capital of Jakarta has become a megalopolis.
Explanation:
just did the quiz