From 1980 and 1990 the insects were sprayed with an insecticide that caused the population to decrease. From 1990 to 2000 the insects were sprayed with the same insecticide, but the population increased. What most likely caused the population to increase? A) The insects were affected by the insecticide causing the population to increase.

B) Due to genetic variation, the insect population adapted to the insecticide.

C)The concentration of insecticide was too great, and therefore biodiversity was reduced.

Answers

Answer 1

Answer:

it's b

Explanation:

they got used to it all the ones that couldnt handle it died in the generation before


Related Questions

A tooth has an exposed ______, a constricted ______, and one or more roots that anchor it to the jaw. multiple choice question.

Answers

Answer:

crown, neck.

Explanation:

A tooth has an exposed crown, a constricted neck, and one or more roots that anchor it to the jaw.

A sample of DNA contains 120 nucleotides, if 35 nucleotides are Guanine, how many nucleotides are Thymine?

(If you can show how you do it that would be great)

Answers

Answer:

25

Explanation:

In DNA, Guanine pairs with Cytosine, and Thymine pairs with Adenine. This tells us that there are equal numbers for each Guanine and Cytosine, and Thymine and Adenine. When there's 35 Guanine, there should be 35 Cytosine that goes with it. 120 - 2(35) = 50. The remaining 50 nucleotides are Thymine and Adenine, and since they are the same number, divide 50 by 2. 50 ÷ 2 = 25. There are 25 thymine in the sample of DNA.

what is the name of the process that appears in the diagram below?

Answers

This diagram depicts the process in which one singular cell produces two genetically identical daughter cells, also known as mitosis.

Hope this helps!

What name is given to the specific location of a gene on a chromosome?

Answers

Answer: A locus is the specific physical location of a gene or other DNA sequence on a chromosome, like a genetic street address. The plural of locus is "loci".

The name which is given to the specific location of a gene on a chromosome is called Locus.

What do you mean by Chromosomes?

Chromosomes may be defined as a stringy structure of nucleic acids and protein located in the nucleus of most living cells, bearing genetic information in the form of genes.

Locus may be defined as a specific place on a chromosome that is occupied by an allele. It represents the physical site of a specific gene on a chromosome.

Therefore, the name which is given to the specific location of a gene on a chromosome is called Locus.

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Which of these BEST
describes the DNA
antiparallel double
helix?
A. BOTH strands run ONLY in the
3' to 5' direction.
B. BOTH strands run in random
directions.
C. ONE strand runs in the 5' to 3'
direction, and the other strand
runs in the 3' to 5' direction.

Answers

one strand runs in the 5' to 3' direction, and the other strand runs in the 3' to 5' direction.

How is DNA helix antiparallel?

The strands of a DNA double helix are said to be "antiparallel" because the have the same chemical structure, but are opposite in direction.

What does it mean that the DNA double helix is antiparallel?

Antiparallel strands of a DNA molecule means that the phosphate groups at the start of two DNA strands are in opposite position (pole).

Hence, C  is correct option

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Which statement provides the best description of the interphase portion of the cell cycle?.

Answers

Answer:

Which statement provides the best description of the interphase portion of the cell cycle? Interphase is a resting stage prior to cell division. During interphase, a cell is metabolically active.

PLEASE VERY SIMPLE QUESTION: The graph above shows the effect of sew biological oxygen demand (BOD) and dissolved oxygen (DO) in a flowing stream. The smallest fish populations will most likely be found at point...​

Answers

Answer:

A

Explanation:

closer to the sewage spill- less fish there will be because sewage is poisonous and at A the BOD is relatively high

hope I'm right and this helps goodluck.

Which types of cells form a cell plate during cytokinesis

Answers

Answer:

animal daughter cells

Explanation:

Instead of plant cells forming a cleavage furrow such as develops between animal daughter cells, a dividing structure known as the cell plate forms in the cytoplasm and grows into a new, doubled cell wall between plant daughter cells. It divides the cell into two daughter cells.

Why is it important to continuously monitor seismic data?

Answers

Answer:

determining the frequency of occurrence of earthquake activity, evaluating earthquake risk, interpreting the geological and tectonic activity of the area, and providing an effective vehicle for public information and education

Explanation:

I looked it up

what is the approximate time of death if the body temperature was 10 degrees celcius

Answers

Answer:

I think it would be 2 to 3 days am so sorry if am wrong

Explanation:

F = c * {9/5} + 32 is the equation

F = 10 * {9/5}

F = 10 * 1.8

F = 18

What is the largest of the cranial nerves and the most important sensory nerve of the face?.

Answers

Answer:

The Trigeminal Nerve

Explanation:

The largest of the cranial nerves and most important sensory nerve of the face is the trigeminal nerve (letter C).

Describe Lynn Margulis' three observations (evidence) which support the endosymbiotic
theory.

Answers

There is quite a lot, but the fact that both mitochondria and chloroplasts have their own circular DNAis what I would call "key" evidence. That is, these organelles are not "manufactured" by the cell (i.e., there are no "genes for mitochondria" in eukaryote genomes): like their ancestral bacteria, they reproduce by binary fission.

4




Related questions (More answers below)

The process where a virus takes a segment of DNA from one bacterial cell and inserts it in another bacterial cell is known as?

Answers

Answer:

during conjugation, DNA is transferred from one bacterium to another. After the donor cell pulls itself close to the recipient using a structure called a pilus, DNA is transferred between cells.

Explanation:

hope this helps you;)

Answer:

the answer is conjunction

Alternative energy sources come from renewable processes. please select the best answer from the choices provided t f

Answers

The statement 'alternative energy sources come from renewable processes' is TRUE.

What are alternative energy sources?

The alternative energy sources are different types of energy produced by reversible natural processes.

These types of energy are constantly produced by the surrounding environment and can be reused.

The alternative energy sources include, among others, solar energy, wind energy, geothermal energy, etc.

Learn more about alternative energy sources here:

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Answer:

true

Explanation:

check picture for question

Answers

Answer:

I can't see the writing please make it bold

If you cook a marshmallow a few feet above a camp fire, it will cook mostly
by
A) radiation
OB) conduction
C) convection
EXPLAIN YOUR ANSWER
I DONT TAKE LINKS OR FILES

Answers

I believe it’s A, I’m not so sure

The study of embryological similarities and differences among species is called _______.

Answers

Comparative embroyology

explanation:

Comparative embroyology is the study of the similarities and the difference.

What are the different systems of classification of organisms

Answers

Answer:

Kingdom, phylum, class, order, family, genus, and species.

Explanation:

The science of classifying living things is called taxonomy. Linnaeus introduced the classification system that forms the basis of modern classification. Taxa in the Linnaean system include the kingdom, phylum, class, order, family, genus, and species. Linnaeus also developed binomial nomenclature for naming species.

Plants manufacture their own supplies of carbohydrate. What are the raw materials and the waste product of this process? raw materials waste product A. Carbon dioxide and chlorophyll oxygen. B. carbon dioxide and water oxygen. C. oxygen and chlorophyll carbon dioxide. D. oxygen and water carbon dioxide.​

Answers

Answer:

Carbon dioxide, water, and sunlight are the raw materials for photosynthesis. Photosynthesis is the process by which green plants make their own food from carbon dioxide and water in the presence of sunlight. The prepared food is glucose. To prepare one molecule of glucose, by the process of photosynthesis six molecules of carbon dioxide and six molecules of water is required. Six oxygen molecule is released as a byproduct.

Thus, the correct product are 'Carbon dioxide, water, and sunlight'.

Explanation:

Why would it be incorrect to say that the DNA sequence A-C-G codes for the amino acid threonine?

Answers

It would be incorrect to say that the DNA sequence A-C-G codes for the amino acid threonine because mRNA codons code for amino acids not DNA.

What is a codon?

A codon is a triplet nucleotide sequence that encodes a particular amino acid.

A DNA sequence is transcribed into mRNA sequence, which is read in a group of three nucleotides called codon.

Each mRNA codon (three letter) encodes an amino acid.

Therefore, it would be incorrect to say that the DNA sequence A-C-G codes for the amino acid threonine because mRNA codons code for amino acids not DNA.

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are humans susceptible to kind of resource shortages that affect populations of tbe other species?

Answers

Answer: People are somewhat susceptible. When it comes to food, you can often see examples of famines in "underdeveloped" countries that are extremely harmful to their populations.

Which of these is a threat to the survival of an ecosystem A.less biomass at higher levels of the food web B. competition among some consumers population C.a shrinking variety of animal and plant species D.predator prey population cycles

Answers

Answer:

Answer: C) In an ecosystem, prey and predator populations affect each other.

Think of cause and effect: The wolves keep the deer population in check because they hunt them. If the wolf population increases, the deer population goes down. If you reduce the number of wolves than the deer population goes up.

Hope this helps :)

Explanation:

GIVING BRAINLIEST
What type of climate is experienced by cities that are close to large bodies of water as compared to inland cities at the same latitude?

Bigger changes in temperature and lower levels of precipitation. X
Hotter temperatures and a bigger range of different types of precipitation.
Milder temperatures and higher levels of precipitation. X
Much lower temperatures and lower levels of precipitation.

its not a or c so its b or d
science

Answers

Answer:

C

Explanation:

Being on the coast will result in milder temperature fluctuations because the nearby body of water helps regulate any big changes a city might occur. Being near the coast where lots of water is evaporating and forming clouds which then move inland and precipitate or rain, often fairly close to shore.

If this is on a self grading assignment the answer programmed may be wrong if it says C is wrong.

How did gravity affect the growth of the germinating corn seeds?

Answers

Answer:

see below

Explanation:

their roots respond positively, growing down, into the soil, and their stems respond negatively, growing upward, to reach the sunlight.

Gravity influenced the growth of germinating corn seeds by providing the directional cue for root growth and promoting proper orientation of the plant.

Gravity plays a crucial role in plant growth and development, particularly during the germination of seeds. When a germinating corn seed is placed in a gravitational field, gravity acts as a guidance mechanism for the growing seedling.

In response to gravity, the root of the germinating seed grows in a downward direction, a process known as gravitropism or geotropism. This downward growth of the root is called positive gravitropism. The root responds to the gravity stimulus by redistributing auxin, a plant hormone, towards the lower side of the root. This causes cells on the lower side of the root to elongate more than cells on the upper side, leading to downward growth. The downward growth of the root helps anchor the plant in the soil and facilitates water and nutrient absorption from the ground.

Simultaneously, gravity also influences the shoot of the germinating corn seed. The shoot exhibits negative gravitropism, where it grows upward against the force of gravity. This upward growth is counterbalanced by the downward growth of the root, allowing the plant to establish proper orientation.

Without the presence of gravity, the germinating corn seeds would not be able to establish the proper orientation and direction of growth. The root may not grow downward, leading to irregular and inefficient water and nutrient absorption. The shoot may not grow upward, resulting in an abnormal and compromised overall plant structure.

Therefore, gravity serves as a crucial external factor that guides the growth of germinating corn seeds, ensuring proper root development, anchorage, and shoot orientation for successful plant growth.

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why are hooves more advantages for horses in the modern era

Answers

Answer:

just search it up on google

Answer:

Hooves are better equipped for environments with plains.

Explanation:

I just got this right on my quiz, hope this helps :)

Why are food webs more realistic than food chains?

look at the attachment please!

Answers

Answer:

the correct answer is B

Explanation:

i put it in answer form for others:)

The boy is pushing a box with force 30 N. How much force is the box pushing back with and why

Answers

Answer:

30N

Explanation:

Newton's third law states that when you apply a force onto something, it gives the same force in an equal but opposite direction.

Topic : Photosynthesis and Energy transfer in food chains
App : Teams Homework


Note : it’s ok if u can’t write an essay but can anyone please share their ideas so I can put it together

Answers

Introduction:The sun warms our seas,stirs our atmosphere,generates our weather patterns ,and gives energy to the growing green plants that provide the food and oxygen for life on Earth.Description:Primary producers use energy from the sun to produce their own food in the form of glucose ,and then primary producers are eaten by primary consumers who are in turn eaten by secondary consumers ,and so on,so that energy flows from one trophic level,or level of the food chain ,to the next .Energy decreases as it moves up trophic levels because energy is lost as metabolic Heat when the organisms from one trophic level are consumed by organisms from the next level,food chain can usually sustain no more than six energy transfers before all the energy is used.Explore:Note : This one's for you(◕ᴗ◕✿)Evaluate:Note: This one's for you

i hope it's helpful.

Select all of the limiting factors that are density-dependent. question 12 options: fire disease predation hurricane competition for food competition for light flood waste accumulation

Answers

The limiting factors that are density-dependent are disease, competition and predation.

What are the four main limiting factors in an environment?

The common limiting factors in an ecosystem are food, water, habitat, and mate. The availability of these elements will impact the carrying ability of an environment.

As the population increases, food demand increases as well. Since food is a limited resource, organisms will begin competing for it.

Thus, disease, competition and predation are limiting factors.

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How can gardeners and farmers add mineral nutrients to soil? (Select all that apply.)
They can heat the soil.
They can add compost to the soil.
They can add fertilizer to the soil.
They can water the soil.

Answers

Gardeners and farmers add mineral nutrients to soil by add compost and fertilizer to the soil.

How fertilizer enhance growth?

Fertilizer enhanced growth of the plant because it has nutrients which the plants need for their growth and development so we can conclude that gardeners and farmers add mineral nutrients to soil by add compost and fertilizer to the soil.

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Carlos is saving for a new bike. he is paid $6.60 an hour and works 10 hours per week at his after-school job. If he saves 75% of the money he earns, how much does he save each week? 10 POINTS! A restaurant manager collected data and created the histogram shown below.Which of the following statements accurately describes the information in the graph?A.The age range with the highest number of visitors is 11-20.B.The age range with the highest number of visitors is 31-40.C.The age range with the lowest number of visitors is 1-10.D.The age range with the lowest number of visitors is 21-30. HELP PLEASE- 50 POINTS! The organizations Business Professionals of America and Future Business Leaders of America are designed for whom?A. employeesB. mediatorsC. managersD. students What is 75% of 112?(^u^) what did I get wrong I got 6/8 please help I need help on this, its confusing Convert 95F into degree centigrade. Each biome has its own climate? question 2 options: true false Can someone please help me its a 2-page first page is the reading Overall, the style of the passage is best described as conversational conversational digressive digressive cryptic cryptic lyrical lyrical intellectual This chart shows the number of eggs laid each month by my pet chicken, Drakestail:(picture below)What is the greatest average number of eggs per month laid by Drakestail during a period of 5 consecutive months?("Consecutive" means "back to back". For instance, January and February are consecutive, but January and March aren't.)ASAP PLEASE! GIVING OUT 20 POINTS Fastest answer gets brainliest (must provide an explanation and steps for proof) Consider the equation for the formation of water. 2h2 o2 right arrow. 2h2o what is the theoretical yield of h2o if 130 g of h2o is produced from 18 g of h2 and an excess of o2? 18 g 81 g 130 g 160 g Another term for real interest rate isO A. annual percentage yieldB. rate of returnC. compound interestD. nominal interest rate Help me please with my historyQuestion 11 (1 point) How did the Compromise of 1877 influence African American civil rights?Question 11 options:It required the federal government to propose new amendments that restricted African American rights, helping southern states overturn federal civil rights lawsIt allowed the federal government to continue to reshape southern society, increasing rights for African AmericansIt gave African Americans more roles in the federal government, giving them more power to reshape the SouthIt signaled that the federal government would refrain from actively supporting African American rights, allowing Southern Democrats to overturn political gains by African AmericansQuestion 12 (1 point) SavedHow did the United States government observe the 100th anniversary of the signing of the Declaration of Independence in 1876?Question 12 options:It did not celebrate the event, as it was still engaged in the Civil WarCelebratory events were held, but were largely subdued as the nation was still feeling divided and experiencing the effects of the Civil WarMajor celebrations were held throughout the country, acknowledging our country's united and national spiritIn celebration of the major milestone, political parties were abolished Terrel is designing and maintaining a web page for a local company. In which career pathways would Terrel be involved?Programming and Software Development, and Network SystemsNetwork Systems and Interactive MediaInformation Support and Services, and Programming and Software DevelopmentInteractive Media, and Information Support and Services References that employers trust for the most accurate reporting include _____. a. friends b. relatives c. counselors d. parents please select the best answer from the choices provided a b c d 3. Sarah is writing the letterin Passive voice A box of sunflower seeds contains p packets. Each packet of sunflower seeds contains s seeds. Which equation can be used to find the number of sunflower seeds in a box, b? *5 pointsp = sbs = pbb = spb + s = p The diagram above shows a ballistic pendulum. A 10 g bullet is fired into the suspended 2 kg block of wood andremains embedded inside it (a perfectly inelastic collision). After the impact of the bullet, the block swings up to amaximum height h. If the initial speed of the bullet was 35 m/s:A.) What was the momentum of the bullet before the collision?B.) What was the kinetic energy of the bullet before the collision?C.) What was the velocity of the bullet-block system just after the collision? D.) What was the total kinetic energy of the bullet-block system after the collision?E.) What is the maximum possible potential energy of the bullet-block system when it reaches its maximum height?F.) What is the maximum possible height of the bullet-block system?