What genetic trait allows organisms to survive natural selection in their
environments?

Answers

Answer 1

Answer:

Adaptations

Explanation:


Related Questions

In cellular respiration, the energy for most ATP synthesis is supplied by:


A. High energy phosphate bonds in organic molecules


B. A proton gradient across a membrane


C. Converting oxygen to atp


D. Transferring electrons from organic molecules to pyruvate


E. Generating carbon dioxide and oxygen in the electron transport chain

Answers

Answer:

B. A proton gradient across a membrane.

Explanation:

Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary products are produced at the glycolysis and citric acid cycle stage.

Additionally, mitochondria provides all the energy required in the cell by transforming energy forms through series of chemical reactions; breaking down of glucose into Adenosine Triphosphate (ATP) used for providing energy for cellular activities in the body of living organisms.

Basically, oxygen goes into the body of a living organism such as plants, humans and animals when they breathe while glucose is absorbed by the body when they eat.

In cellular respiration, the energy for most ATP synthesis is supplied by proton gradient across a membrane.

This ultimately implies that, most adenosine triphosphate (ATP) is formed due to the net movement of protons against a concentration gradient in the electron transport chain.

A genetic engineer wants to isolate a gene from a scorpion that encodes the deadly toxin found in its stinger, with the ultimate purpose of transferring this gene to bacteria and producing the toxin for use as a commercial pesticide. Isolating the gene requires a DNA library. Should the genetic engineer create a genomic library or a cDNA library

Answers

Answer:

The correct answer is - Yes, the genetic engineer should create a genomic library or a cDNA library.

Explanation:

mRNA isolated from the toxin extracted from the venom gland of the scorpion to create a cDNA library. The cDNA sequence is reverse transcribed by the mRNA that lacks the introns as prokaryotic organisms such as bacteria cannot splice introns.

If the engineer wants to express the toxin in bacteria then he required a cDNA sequence as a genomic clone can not use to clone for making proteins.  mRNA should be isolated from the venom gland so it can synthesize cDNA library enriched with toxin protein sequence.

D. Explain the relationship between the pulse recorded in the finger and heart muscle contraction ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ E. Which components of the cardiac cycle (atrial systole and diastole, ventricular systole and diastole) are discernible in the pulse tracing? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Answers

Answer:

D. Heart contraction and pulse are connected with one another.

E. Atrial diastole and ventricle diastole.

Explanation:

Heart construction and pulse of an individual are connected as one can hear the pulse every time contraction of the heart is completed. Pulse can be understood by this that it represents the number of the contractions is completed by heart each time.

In the pulse tracing, there are two parts of the heart that are discernible which represents the contraction of the heart that are Atrial diastole and ventricle diastole.

The relationship between the pulse recorded in the finger and heart muscle contraction is that both are connected to each other. But, the analysis and processes are different from one another.

What is Muscle Contraction?

A process leading to shortening and/or development of tension in muscle tissues that means the thin filaments slide over the thick filaments and tension is generated between one another is called Muscle contraction.

The pulse recorded in the finger is a signal for flowing the blood throughout the body, while the process of heart muscle contraction signals for electrical conductivity. Both the functions are connected with each other and acquired by cardiac activities.

The components of the cardiac cycle that are discernible in the pulse tracing are Ventricular systole (contraction) and ventricular diastole (relaxation).

Therefore, both the pulse recorded in the finger and heart muscle contraction interconnected with one another and acquired by cardiac activity.

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Most of the oxygen in the atmosphere is made by algae. Where do most of the algae live?
coastal ocean
deep ocean
ponds
lakes

Answers

Coastal Ocean!

Explanation: It’s important to remember that although the ocean produces at least 50 percent of the oxygen on Earth, roughly the same amount is consumed by marine life. Like animals on land, marine animals use oxygen to breathe, and both plants and animals use oxygen for cellular respiration. Oxygen is also consumed when dead plants and animals decay in the ocean.

This is particularly problematic when algal blooms die and the decomposition process uses oxygen faster than it can be replenished. This can create areas of extremely low oxygen concentrations, or hypoxia. These areas are often called dead zones, because the oxygen levels are too low to support most marine life.

NOAA’s National Centers for Coastal Ocean Science conducts extensive research and forecasting on algal blooms and hypoxia to lessen the harm done to the ocean ecosystem and human environment.

Most of the oxygen in the atmosphere is made by algae, with coastal oceans housing the majority of algae. Hence the correct option is A.

What is Algae?

Algae is defined as a member of a group of primarily aquatic photosynthetic organisms of the Protista kingdom. Algae is described as floating green matter on the surface of a pond, lake, river, still water, moist soil, stones that grow on wet surfaces. Therefore, they can synthesize their own food. They are found in water or in very moist places.

Algae play many important and beneficial roles in freshwater environments producing oxygen and consuming carbon dioxide that act as the base of the aquatic food chain, removing nutrients and pollutants from the water and stabilize sediments. Most of the oxygen in the atmosphere is made by algae, with coastal oceans housing the majority of algae.

Hence the correct option is A.

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Imagine that you are trapped within the exclusion zone. As you hike your way out, you begin to feel hungry. Using what you know about biomagnification, which food source would be the
safest? Explain how you know.
a. Mushrooms, fruit, and berries
b. Moose or deer meat.
C. Wolf meat.
d. Eagle meat.

Answers

Probably moose or deer meat the others captain bad stuff and some berry and mushrooms can be poisonous. We eat elk and deer meat a lot!

The food sources that would be the safest are mushrooms, fruit, and berries.

What do you mean by Biomagnification?

Biomagnification may be defined as the process by which a compound such as toxins, pollutants, etc. increases its concentration in the tissues of organisms as it travels up the food chain.

Mushrooms, fruit, and berries are present at the lowest level of the trophic level because they are autotrophs. Due to their position, they contain the lowest amount of toxins in them, and hence are more safest.

Therefore, the food sources that would be the safest are mushrooms, fruit, and berries.

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PLEASE HELP ASAP!!!
What is one example of an index fossil?
1. a rock
2. a tooth
3. a trilobite
4. a meteor

Answers

The answer is a rock !!!!

Answer: #1. A Rock

Definition: A fossil that is useful for dating and correlating the strata in which it is found.

Note: Hope this helps answer is from Acceleration Education / Buzz.

All My Other Answers:

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What purpose of transportation? Where does it happen the cell

Answers

Answer:

Explanation: How do things move across a cell membrane?

Summary. Controlling the movement of things in and out of the cell is an important role of the plasma membrane. ... Osmosis is the diffusion of water molecules across a membrane. Water moves in or out of a cell by osmosis until its concentration is the same on both sides of the plasma membrane.

Materials move within the cell's cytosol by diffusion, and certain materials move through the plasma membrane by diffusion (Figure 3). Diffusion expends no energy. On the contrary, concentration gradients are a form of potential energy, dissipated as the gradient is eliminated

Some cells live for years, while others live for only a few days. Why do some cells get replaced faster than others?

Answers

Answer:

Some cells don't divide and last you a life time such as many of those in the central nervous system other cells such as stems called cell populations have their telemeres repeatedly extended by the enzyme telomerase other cells are never replaced and live as long as we do .

I hope this answer might help u

Help plis..............

Answers

Answer:

the answer has to be C

hope this helps!

Darwin and Wallace both observed greater species richness in the tropics than in Europe, but neither of them had a good explanation for why. One of the best-supported modern-day hypotheses to explain this pattern is that mutation rates are higher in the tropics than in temperate latitudes. Why would higher mutation rates lead to greater species richness

Answers

Answer:

Mutation shows the species energy relationships, tropics are more rich with energy as compared to the temperate europe.

Explanation:

The rate of species evolution is defined by the type of environment or the natural surroundings it lives in. Mutations Can affect organisms by making changes in their physical characteristics. Such can impact their DNA code and may even lead to death in many. The richness of species in the tropics is due to the more warmer and humid climates. They are suited to the development and germination of certain bacterias and have certain climatic phenomena.

Do AIDS transfer by saliva and sweat??????​

Answers

It can only be transmitted when certain fluids from an HIV-positive person move directly into the bloodstream or through mucous membranes of an HIV-negative person. Tears, saliva, sweat, and casual skin-to-skin contact can't transmit HIV.

Question 4(Multiple Choice Worth 4 points)
(05.01 LC)
Which process turns glucose into energy?
O Breathing
O Cell division
O Cellular respiration
Photosynthesisch

Please help ASAP

Answers

Answer:

cellular respiration

Explanation:

it involves the chemical activities of the cell in which glucose is broken down by a series of reaction controlled by the enzymes to release energy

Answer:

The answer is C

Explanation:

The answer is C because the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.

The
secretes special enzymes that help the stomach digest fats.

Answers

Answer:

The pancreas gland lies just beneath the stomach.

Explanation:

It produces a host of digestive enzymes, including lipases, which are essential in fat digestion. The pancreas also secretes bicarbonate ions, which help to neutralize the pH of the chyme entering from the stomach.

What is this organelle?

Answers

Answer:

It's the mitochondria

Explanation:

The mitochondria is the powerhouse of the cell.

Which of the following do plants use for energy?

Answers

Answer:

phhotosyntesis

Explanation:

photosynthesis is the answer :)

Select the correct answer.
Lily feels tired and weak in the evenings after work. Before starting her chores, she eats dinner. Which characteristic of life does Lily exhibit?
A.
growth
B.
need for energy
C.
organization
D.
regulation

Answers

i would say need for engery? because when you work a lot, you need that engery. she regains it by eating dinner then wasting more energy on chores. brainliest?

A dog pants in the heat to control its body temperature. Panting is a mechanism of?

Answers

Answer:

A dog pants in the heat to control its body temperature. Panting is a mechanism of homeostasis that dogs use for regulation .

Describe how air pollution can lead to water pollution.

Answers

Answer:Atmospheric deposition is the pollution of water caused by air pollution. In the atmosphere, water particles mix with carbon dioxide sulphur dioxide and nitrogen oxides, this forms a weak acid. ... When acid rain pollutes marine habitats such as rivers and lakes, aquatic life is harmed.

Explanation:

Rain falls into water polluting it

What is the complementary DNA strand from the following DNA
template:
GGTACTAGCCATATCG
A- CCATGATCGGTATAGC
B- OTTATGATCGGTATAGC
C- CCAUGAUCGGUAUAG
D- OGGTACTAGCCATATCG

Answers

Avia una pajarito q comia pan y se murio por culpa del pan pobre pajaro

Answer:

The third one

Explanation:

Hey There!

Just so you know when you try to find the complementary base strand you put the letter of the nucleotide that it pairs with

Guanine pairs with Cytosine

Thymine Pairs with Adenine

Adenine Pairs with Uracil

Cytosine Pairs with Guanine

If you have anymore questions feel free to ask :)

Groundwater is an important source of drinking water especially in Florida. What is the underground reservoir where water is found?

Answers

The main source of water for most of us in northeast and central Florida comes from underground aquifers. Aquifers can be thought of as vast underground, porous rocks that hold water and allow water to move through the holes within the rock.

Jill has quite a menagerie of pets and she regularly has to deal with minor animal injuries. So when Johnnie, her rooster, spikes Jessie, her collie, on the muzzle with one of his long leg spurs, Jill knows what to do. She reaches for the hydrogen peroxide and thoroughly floods Jessie's puncture wound with the liquid. Jill observes, as always, that the hydrogen peroxide causes heavy fizzing at the site of the wound. She repeats the procedure several times a day over the next week, carefully inspecting the wound for signs of infection. The injury heals without complications and Jessie has a new respect for roosters.
a) What is hydrogen peroxide and how does it help to reduce the infection?
b) Why is hydrogen peroxide especially useful for treating puncture wounds?
c) What causes the fizzing associated with hydrogen peroxide use?

Answers

Answer:

a.) Hydrogen peroxide are highly reactive oxygen compounds used as an antiseptic

b.) Used in treating punctured wounds due to the nature of the wound which helps microorganisms to thrive.

c.) Fizzing associated with hydrogen peroxide use is due to presence of the enzyme catalase.

Explanation:

Hydrogen peroxide is a chemical compound which is made up of two hydrogen atoms and two oxygen atoms. It is powerful oxidizing agent which takes part in biological reactions. This is possible as it can remove electrons from other biological molecules which can damage other cellular components. It is used an an antiseptic to reduce infection because, being a powerful oxidizing agent, it has the ability to react with cell wall of these microorganisms through removal of electrons thereby causing damage to it.

Punctured wounds are narrow in structure which allows obligate anaerobic organisms to thrive because of reduced oxygen flow in the wound. Hydrogen peroxide can effectively eliminate these organisms which are most likely to cause infection in that site because they lack the enzyme called catalase.

Catalase is an enzyme which is present in living cells except obligate anaerobic organisms. It converts hydrogen peroxide into water and oxygen. The fizzing noticed by Jill while cleaning the wound with hydrogen peroxide is due to the catalase in Jill's own cells which converts the hydrogen peroxide to water and oxygen. When oxygen is given off, fizzing reactions are seen at the surface of the wound.

Describe what happens when cells divide uncontrollably?

Answers

Sometimes the cells in part of a multicellular organism divide uncontrollably. The result is a large mass of cells called a tumour . If tumour cells successfully invade other tissues in the body the result is cancer .

Explain how meiosis results in UNIQUE cells.

Answers

Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I. The result is 4 haploid daughter cells known as gametes

Meiosis is a reduction division in which the number of chromosomes in the parent cells is halved to the daughter cells.

Meiosis is the process such as:

Meiosis occurs in the reproductive cells of humans.

Meiosis transmits genetic information from parent to offspring.

Meiosis is the characteristic feature of sexual reproduction.

The male and female gamete fuse to give rise to a newly formed combination of the daughter cells.

Meiosis results in the recombination of male and female gametes, which results in the independent assortment of the genes.

Thus, meiosis always results in new variations and creates genetic diversity.

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The body functions best with a particular set of conditions: an ideal body temperature, blood pressure, blood sugar level, and many other ideal conditions. Which of the following is NOT true regarding homeostasis?

Answers

Answer:

what are the answer chocices

Explanation:

Explanation:

where is the answer choice??

Please someone help me ASAP please

Answers

Answer:

a. Translocation

Explanation:

Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion of it reattaches to a different chromosome.

Which has been justified in the picture.

A dwarf planet flies towards the sun and orbits it. As it does, it burns up leaving a trail of gas and vapor in a form of 2 tails,
O True
O False

Answers

False because if it’s burnt it would leave a trail of gas but it’s said 2 tails not 1 there was only one planet

which lymphoid organs atrophies with age???????
a)Peyer patches
b)Thymus
c)Bone marrow
d)Spleen


answer plz (╯︵╰,)​

Answers

The correct answer is Answer is B

Because The thymus is a primary lymphoid organ responsible for the production of immunocompetent T cells and, with aging, it atrophies and declines in functions.

does anyone know how to do this?

Answers

I’m sorry I don’t understand that at al

Select the correct answer.
Who do we consider to be the founder of genetics?

Answers

Answer:

C: Gregor Mandel

The drug chloral hydrate prevents elongation of microtubules. During which stage of the cell cycle would chloral hydrate be most
harmful?
Multiple Choice
M phase
G1
G2
S phase
cytokinesis

Answers

Answer: G1 phase

Explanation:

Hope this helps!

Other Questions
Graph the line with the given slope that passes through the given point.(a) slope: 2 point: (1, 3) PLEASE HELP ASAP!!!! Which statement best describes the US economy during the late 1940s and 1950s?The economy was very weak during the postwar era.The economy was very strong during the postwar era.The economy remained even during the postwar era.The economy wildly fluctuated during the postwar era. (-7, y) and (-2,-4); m = -6/5 find the slope Which model below represents a fraction that is equivalent to 48 Your neighbor is digging a hole in his back yard for an in-ground swimming pool. The rectangular hole is 21 feet wide, 42 feet long, and 12 feet deep. If his pickup truck can haul one cubic yard, how many trips will it take him to haul all of the dirt away? a. 32 b. 392 c. 3528 d. 10584 Please help my daughter has been stuck on this for the pass hour now Deep in the Earth's crust, almost a mile beneath the ocean floor, a pool of superheated magma pushes against the surface layer of rock. At several thousand degrees Fahrenheit, the heat and pressure are awesome. The rock layer buckles, and a ridge on the ocean floor rises several meters before slamming downward and outward. The molten rock and superheated steam explode, and two huge rock plates, each thousands of miles wide, are pushed a few centimeters apart. A few centimeters doesnt sound like much, but an entire continent has suddenly moved. The resulting earthquake sends an undersea shock wave across the ocean. Minutes later, thousands of miles away, that shock wave, called a tsunami, crashes into shore.The explanation for the forces that unleash killer tsunamis, massive earthquakes, and exploding volcanoes, lies in tectonic plates. These are the huge rock plates underneath the continents.What can happen when tectonic plates move a few centimeters?A. The atmosphere can become cooler.B. Whole continents can move.C. The ozone layer can thicken.D. The moon can move closer to Earth. England established American colonies based on the economic concept of mercantilism. The goal of mercantilism was toA, B, C, or D 3. Which rule best describes the last three numbers shown in the pattern? 10, 12, 9, 11 Write a function called 'game_of_eights()' that accepts a list of numbers as an argument and then returns 'True' if two consecutive eights are found in the list. For example: [2,3,8,8,9] -> True. The main() function will accept a list of numbers separated by commas from the user and send it to the game_of_eights() function. Within the game_of_eights() function, you will provide logic such that: the function returns True if consecutive eights (8) are found in the list; returns False otherwise. the function can handle the edge case where the last element of the list is an 8 without crashing. the function prints out an error message saying 'Error. Please enter only integers.' if the list is found to contain any non-numeric characters. Note that it only prints the error message in such cases, not 'True' or 'False'. Examples: Enter elements of list separated by commas: 2,3,8,8,5 True Enter elements of list separated by commas: 3,4,5,8 False Enter elements of list separated by commas: 2,3,5,8,8,u Error. Please enter only integers. Scientists recently published a paper about an endangered population of Scarlet Bass (species A) in Lake Erie. The authors also published its entire mitochondrial DNA sequence on Genbank, an online system where scientists submit genomic data. Another group of scientists later published an article using molecular data to estimate gene flow among populations of the very abundant Grey Bass species (species B) in Lake Erie, and published mitochondrial data on Genbank as well. After you read the papers you realize that the ranges for species A and a few isolated populations of species B overlap; you look at the sequence data published online from both studies, and you realize they are very similar and differ only by a few nucleotide differences. 8. Do you think these are closely related species, or variants of the same species which of alonzo herndon accomplishments most likely had the greatest impact on his community In what way is petroleum, a fossil fuel, distributed on Earth?(Is it evenly,with most places having very little,unevenly,with some places having noneevenly, with most places having a lotunevenly, but with all places having at least some) 2. Your teacher instructed you to measure the salinity of brine you will use incuring fish. Which of these will you do?a.Recall and master the procedure in using a salinometerb. Review and master the procedure in using the thermometerc. Review the procedure in using a psychrometerd. Review the procedure in using a refractometer 4. Which organ system in humans is most directly involved in thetransport of oxygen?excretorynervouscirculatoryO digestive Find the surface area of the following triangular prism.surface area = ___ ft2 What are the main differences between the manual, oscillate and pulse functions? Select two sentences that contain no errors in spelling.The elementary school decided to hold a ceremony to comemorate its fiftieth anniversary.Though the team members were happy with the victory, they knew they would face retaliation in the rematch.Rodney's mom is letting him attend the concert, but she stipulated that he first finish all his homework and help with the yard work.Will was exultent that Molly decided to follow through with their plans for dinner; he had made reservations a week ago and was lookingforward to trying a new restaurant.Marissa and Kyle were in quandery as to who would give their mom the birthday flowers; Marissa thought Kyle should because he was theone who bought them, but Kyle felt Marissa should because the flowers were her idea. A brown cat (BB) has a litter of kittens with a white cat (bb). What percent of their kittens will be brown?a)10%b)25%c)75%d)100% Two of the main functions of the atmosphere is to sustain life: *Select 2It blocks ultraviolet radiationIt blocks moonlightIt blocks small meteoritesReflects all the sunlight