Answer:
- Two related plants may produce similar substances that could be used for medicines. - A related plant may provide a cheaper source of a substance. - If a plant becomes extinct, a related plant may provide an alternative source of a substance.
(No Explanation)
SOMEONE HELP WILL GIVE BRAINLIEST ANSWER
Which of the following suggests what happens when a mutation occurs in an organism? Select one:
Genes begin to appear in different individuals of the population all at once.
The organism develops new traits as a result of using a particular body part.
New traits appear from changes in the instructions given to the cell by the DNA. Useless traits are removed from the organism due to the loss of nucleotides
Answer:
New traits appear from changes to the DNA..
Explanation:
A mutation is when DNA is changed or altered in some way, causing it to tell the cells to do something different from what they usually do such as growing a body part a certain way, or making skin regenerate a certain way. some mutations are specific to one individual person or thing, other mutations are passed down through generations and become a new normal for the species. new diseases such as viruses are often caused by the virus mutating...this is how we have so many different strains of the flu...
I got 12.25/16.00 (76.56%)
my mom got angry TvT
Answer:
Well, Im proud of you. :)
Answer:
look at the bright side you passed mate
Female mosquitoes need a meal of blood from a person or other animal in order to produce eggs. It has been discovered that mosquitoes have cells on their antennae that can detect the insect repellent known as DEET. The repellent is not harmful to mosquitoes, but when mosquitoes detect DEET, they will not land on the surface where the DEET has been applied. This protects people from being bitten by mosquitoes. Recently, scientists found some mosquitoes that are resistant to DEET because they do not detect its presence. They bred these mosquitoes and eventually produced a population consisting of about 50% DEET- resistant insects. Identify the process most likely responsible for a mosquito initially becoming resistant to DEET.
Answer:
Mutation followed by natural selection made mosquitos resistant to DEET
Explanation:
Natural selection selects beneficial alleles, which increase their frequency in the population, resulting in adaptation. Aptitude, which is the contribution of each genotype to the next generation, increases too.
In many cases adaptations, resulting from the natural selection process can be correlated to environmental factors or selective pressures applied by other organisms or habitats.
Let us remember that, a mutation is a change or alteration in DNI sequences that introduce new variants. Many of these are eliminated, but some of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection.
So, in the exposed mosquitos´ example,
The selective pressure or modeling environmental factor is the DEET repellent.Some of the mosquitos mutated changing their behavior. The new mosquito´s response is not-detection of the repellent presence -only in those individuals carrying the mutations-. Natural selection benefits these mutations. Mosquitos survive and become more resistantProbably some of the mosquitos in the population suffered a mutation that favored them in not detecting repellent DEET. These individuals developed resistance to the chemical and were able to survive and reproduce, enhancing population sizes again. Natural selection benefited the mutation that gave them resistance.
Let us remember that the term resistance refers to an inheritable change in the population sensitivity, reflected through the consecutive failure of the chemical effects, correctly used in order to cause an effect on the insect population.
Repellents might produce a genetic modification in the insects, leading them to not detect the chemical. Insects evolve with the capability of tolerating the DEET dose that normally is used to repel mosquitos
The excessive use of DEET leads to the fixation of new genes -by natural selection- that result from mutations in the mosquito genetic material, which makes them become even more resistant to the chemical.
How does survivorship relate to an individual's fitness?
Answer:
Ecologists use survivorship curves to visualize how the number of individuals in a population drops off with time. In order to measure a population, ecologists identify a cohort, which is a group of individuals of the same species, in the same population, born at the same time.
The higher the survivorship of an organism, the higher the fitness of the organism
What is survivorship ?The term survivorship refers to the ability of an organism to live long in its habitat and reproduce. This is related to the fitness of an organism which is its ability to survive to the next generation.
Hence, the higher the survivorship of an organism, the higher the fitness of the organism and vice versa.
Learn more about survivorship: https://brainly.com/question/9904853
Cellular respiration is how living things obtain energy for life. The organelle where cellular respiration takes place is the
A. chloroplast
B. Golgi body
C. mitochondria
Answer:
C. Mitochondria
Explanation:
How to overcome Confusion?????
Answer:
use a full heal
Explanation:
What is the entire object shown in the image?
A cell with a nucleus and other structures is shown.
prokaryote
eukaryote
chloroplast
mitochondrion
Answer:
Eukaryote
Explanation:
a eukaryotic cell
Answer: Eukaryote
Explanation:
EARTH SCIENCE CLASS
Why is the street (asphalt) hotter than the sidewalk in the summer ?
Answer:
bad albedo ? sorry if not right
How many acres of land do you think were required for all forms of food except
beef?
A. 20,475 acres
B. 45,510 acres
C. 105,000 acres
D. 410,505 acres
example of made up negative feedback loop
Answer:
negative feedback loop involving insulin and glucagon help to keep blood glucose levels within a narrow concentration range. If glucose levels get too high, the body releases insulin into the bloodstream.
hope it help
In guinea pigs, the allele for short hair is dominant to long hair. A guinea pig with short hair is crossed to one that has long hair. Over a period of years, a scientist keeps records of the offspring and finds that 44 of them have short hair and 46 of them have long hair. Based on this data, what are the genotypes of the parents:
1. HH x hh
2. Hh x hh
3. HH x Hh
4. hh x hh
I would choose Option 2
about 50% chance that the dominance is in, but when it is, its dominant, of course.
no other Option can give you a 50% chance
in 1 its always there, in 3 as well, in 4 never
Can someone help me if this is correct
Answer:
As far as i know yes it is correct
Explanation:
sodium-potassium pump. Find out what this pump does for a cell, and explain it here.
Answer:
protein pump
Explanation:
This protein pump, also known as the Na+/K+ pump or Na+/K+-ATPase, is located in the cell membrane of neurons (and other animal cells). It works by transporting sodium and potassium ions across the cell membrane in a 3:1 ratio of sodium ions out to potassium ions in.
Answer:
Hello There!!
Explanation:
Here is the answer↬It transports sodium and potassium ions across the cell membrane.
hope this helps,have a great day!!
~Pinky~
7.9(A) Which of these conditions is most responsible for Earth having an environment
that supports life? help please
what are the three main particles of soil are? How do these shape and influence the type of soil we observe and its uses?
Answer:
Soil particles vary greatly in size, and soil scientists classify soil particles into sand, silt, and clay. Texture indicates the relative content of particles of various sizes, such as sand, silt and clay in the soil. Texture influences the ease with which soil can be worked, the amount of water and air it holds, and the rate at which water can enter and move through soil. Soil provides plants with foothold for their roots and holds the necessary nutrients for plants to grow; it filters the rainwater and regulates the discharge of excess rainwater, preventing flooding; it is capable of storing large amounts of organic carbon; it buffers against pollutants, thus protecting groundwater.
There are the same amount of carbon atoms on Earth now as there were in the past, but there are more in the atmosphere ever before. What explanation do you have for this?
The global average atmospheric carbon dioxide in 2019 was 409.8 parts per million (ppm for short), with a range of uncertainty of plus or minus 0.1 ppm. Carbon dioxide levels today are higher than at any point in at least the past 800,000 years.The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change.
which scenario is an example of the transfer of thermal energy by conduction?
Answer:
heat causes winds to blow from the water to the land. Heated air molecules in a hot air balloon soon carried thermal energy to the top of the balloon. this is an example of conduction.
Explanation:
Have a nice day :)
How do I calculate Ph?
Explanation:
To calculate the pH of an aqueous solution you need to know the concentration of the hydronium ion in moles per liter (molarity). The pH is then calculated using the expression: pH = - log [H3O+].
how does oxygen help? name at least 3 reasons for brainliest :)
Base your answer on the information below. A decade after the Exxon Valdez oil tanker spilled millions of gallons of crude [oil] off Prince William Sound in Alaska, most of the fish and wildlife species that were injured have not fully recovered. Only two out of the 28 species, the river otter and the bald eagle, listed as being injured from the 1989 spill are considered to be recovered said a new report, which was released by a coalition of federal and Alaska agencies working to help restore the oil spill region. Eight species are considered to have made little or no progress toward recovery since the spill, including killer whales, harbor seals, and common loons [a type of bird]. Several other species, including sea otters and Pacific herring, have made significant progress toward recovery, but are still not at levels seen before the accident the report said. More than 10.8 million gallons of crude oil spilled into the water when the tanker Exxon Valdez ran aground 25 miles south of Valdez on March 24, 1989. The spill killed an estimated 250,000 seabirds, 2,800 sea otters, 300 harbor seals, 250 bald eagles, and up to 22 killer whales. Billions of salmon and herring eggs, as well as tidal plants and animals, were also smothered in oil. Reuters The oil spilled by the Exxon Valdez tanker is an example of ______________.
Answer:
Explanation: The Exxon Valdez oil spill was a manmade disaster that occurred when Exxon Valdez, an oil tanker owned by the Exxon Shipping Company, spilled 11 million gallons of crude oil into Alaska’s Prince William Sound on March 24, 1989. It was the worst oil spill in U.S. history until the Deepwater Horizon oil spill in 2010. The Exxon Valdez oil slick covered 1,300 miles of coastline and killed hundreds of thousands of seabirds, otters, seals and whales. Nearly 30 years later, pockets of crude oil remain in some locations. After the spill, Exxon Valdez returned to service under a different name, operating for more than two decades as an oil tanker and ore carrier.
On the evening of March 23, 1989, Exxon Valdez left the port of Valdez, Alaska, bound for Long Beach, California, with 53 million gallons of Prudhoe Bay crude oil onboard.
At four minutes after midnight on March 24, the ship struck Bligh Reef, a well-known navigation hazard in Alaska’s Prince William Sound.
The impact of the collision tore open the ship’s hull, causing some 11 million gallons of crude oil to spill into the water.
At the time, it was the largest single oil spill in U.S. waters. Initial attempts to contain the oil failed, and in the months that followed, the oil slick spread, eventually covering about 1,300 miles of coastline.
Investigators later learned that Joseph Hazelwood, the captain of Exxon Valdez, had been drinking at the time and had allowed an unlicensed third mate to steer the massive ship.
Which characteristics of sexual reproduction has specifically favored the survival of animals that live on land? * ASAP PLEASEE
1 point
A. fusion of gametes in the outside environment
B. male gametes that may be carried by the wind
C. fertilization within the body of the female
D.female gametes that develop within ovaries
Answer:
C. Fertilization within the body of the female
Ivy grows specifically on stone walls, what type of response is this?
A. Hydrotropism
B. Thigmotropism
C. Phototropism
D. Geotropism
Answer:
B. Thigmotropism
Explanation:
Thigmotropism is a directional growth movement which occurs as a mechanosensory response to a touch stimulus. Thigmotropism is typically found in twining plants and tendrils, however plant biologists have also found thigmotropic responses in flowering plants and fungi.
Answer:
B. Thigmotropism
Explanation:
The ivy grows specifically on stone walls, it shows Thigmotropism.
Te
а.
Which of the following is a way that scientific advancements have benefited society?
increased energy efficiency
Б. increased resource use
increased urbanization
d changes in the global climate
C.
Please select the best answer from the choices provided
Mark this and return
Save and Exit
Next
Submit
Answer:
Б. increased resource use
increased urbanization
Someone pls help me ill give out brainliest pls don’t answer if you don’t know
if humans began hunting and driving the great barracuda to extinction how would this affect the ecosystem (answer should discuss biodiversity, food webs, and food chains)
Answer:
Generally considered to be the tertiary consumers (top level of the food pyrmaid), barracuda feed on an array of preys including grunts, groupers, snappers, small tunas, mullets, killifishes, herrings, and anchovies. By feeding on these marine organisms, barracuda prevent them from increasing in number.
Now let's barracuda's number starts decreasing due to hunting and other reasons. This will result in other primary and secondary consumers to increase in population. An increase in the number of primary and secondary consumers in the food chain will result in a decreasing number of plants, i.e. the number of producers decreases. Hence, this will negatively affect other connected food chains in the marine food web.
Explanation:
When looking at the cell membrane, where are the lipid heads located?
Answer:
The cell membrane consists of two adjacent layers of phospholipids, which form a bilayer. The fatty acid tails of phospholipids face inside, away from water, whereas the phosphate heads face the outward aqueous side.
The cell membrane consists of two adjacent layers of phospholipids, which form a bilayer. The fatty acid tails of phospholipids face inside, away from water, whereas the phosphate heads face the outward aqueous side.
What is cell membrane?
The cell membrane is a biological membrane that separates and protects the interior of all cells from the outside environment.
Moreover, the cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
Hence, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains.
Learn more about cell membrane:
https://brainly.com/question/13524386
#SPJ2
Nerve cells are called
A. neurocytes
B. neurons
C. prokaryotes
D. white nerve cells
Answer:
Neurons
Explanation:
Answer:
Hi, there your answer is B.Neurons
Explanation:
Nerve cells are called neurons.
Hope This Helps :)
according to this time table a train --------- at 3 o'clock .A will leave .B is leaving C. is going to
Answer:
is going on is your answer
I need help so pls help me ?
The chart below demonstrates the number of genetic differences between 9 species. Which two species are least closely related to each other according to the information provided?
Hi. You did not submit the chart to which this question refers, which makes it impossible for it to be answered. However, I will try to help you as best I can.
Generally speaking, we can state that the two species that are less genetically related are those that present more genetic differences between them. This is because the number of genetic differences is greater in species that have no genetic relationship, or that have a very weak genetic relationship.
In this case, to answer this question, you need to assess which two species, shown on the chart, have the greatest number of genetic differences between them.
