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

If the same object was taken to each of the planets, where would it weigh the most, and where would it weigh the least?​

Answers

Answer:

answer in the link.

Explanation:

Models of both atmospheric and oceanic circulation show predictable patterns of air and water movement across the globe. The
phenomenon that MOST directly causes these atmospheric and oceanic circulation patters is

Answers

Coriolis effect is the phenomenon that most directly causes these atmospheric and oceanic circulation patterns.

What is Coriolis effect?

This is defined as an apparent deflection of the path of an object that moves within a rotating coordinate system.

Atmospheric and oceanic circulation patterns aride from deflection of the direction of air and water currents moving towards or away from the poles.

Read more about Coriolis effect here https://brainly.com/question/3650165


At room temperature, dry ice (carbon dioxide, CO2) changes directly from solid to gas. What happens as the solid dry ice turns into carbon dioxide gas?
A.CO2 molecules lose mass to become gas.
B.CO2 molecules release heat energy to the air.
C.CO2 molecules absorb heat energy from the air.
D.CO2 molecules react with oxygen and become gas.

Answers

Answer:

A

Explanation:

Carbon dioxide is a gas at room temperature.

When the solid dry ice turns into carbon dioxide gas, the carbon dioxide molecules release heat energy into the air. Thus, the correct option for this question is B.

What happens when the solid dry ice turns into carbon dioxide gas?

When the solid dry ice turns into carbon dioxide gas, the process of sublimation occurs. This process of sublimation significantly converts the dry ice into a gas in the form of water vapor.

It may be revealed that dry ice is known for carbon dioxide in its solid state of matter. The unique property of this dry ice is that it ultimately turns from a solid to gas at room temperature. This is because it provokes water vapor in the air to be condensed into droplets of water thus constructing a fog appearance.

Therefore, the molecules of carbon dioxide release heat energy into the air. Thus, the correct option for this question is B.

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#SPJ2


The following sequence is labeled from 5’ to 3’ Write out the complementary strand (3' to 5'). Then, write out the mRNA strand that
transcribes the template strand,
5' ACGATGCGAGATAATGTG 3’

Answers

i can do the transcribing not the other part “UGCUACGCUCUAUUACAC”

The two different X in Y individuals plays a role in increasing genetic biodiversity

Answers

The statement 'two different X in Y individuals plays a role in increasing genetic biodiversity' is TRUE. It is a system for se_xual reproduction.

What are X and Y chromosomes?

The X and Y chromosomes represent a manner by which organisms with se_xual reproduction can produce offspring.

In humans, the presence of two X chromosomes produces females, whereas the presence of one Y chromosome generates males.

Se_xual reproduction is fundamental for producing new gamete combinations in offspring.

Learn more about X chromosomes here:

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What is always at the start of natural selection?

A: reproduction
B: mutation
C: passing on genes

Answers

Answer:

passing on genes

Explanation:

Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.

What is the difference between a rock and a mineral?



PLEASE HELP ME MENTALLY AND PHYSICALLY!!!

Answers

Answer:

what they are classified as the chemicals in them and what category there in

Explanation:

A mineral is a solid, inorganic, naturally occurring, ordered arrangement of an element or compound that has a fairly specific composition.

Answer:

rocks are made up of different minerals

in geology a mineral is a naturally occuring chemical compound that can be found in the ground and mountains

Explanation:

example

schist is a rock

some of the minerals inside of schist are :

quartz , graphite and talc

quartz are used in watches

graphite are in pencils

talc used to be used for talcum baby powder

schist is found in the bedrock of new york and is very strong

thats why new york can have such tall buildings

wikipedia britannica bgsacuk opentextbcca massgov

Can someone please help with number 38

Answers

Answer:

The answer is (c)

Explanation:

Placenta previa. The placenta is a structure that develops in the uterus during pregnancy.

Planning an investigation
Design your own experiment to test how your body changes du changes in heart rate, breathing rate, or any other parameter occurring during exercise.
Part A First, formulate a question to answer through scientific investigation. Keep in mind that you should be able to answer your question with measurable data. Write your question here.​

Answers

Answer:

An experiment to check a person's fitness is designed. The below mentioned parameters are checked 

How and why do organisms interact with one another?

Answers

Answer:

It's in their makeup to interact

Explanation

They need to interact to survive, to exist, to reproduce!

Answer:Organisms interact because of mating, competition for food resources, defense, and assertion of dominance.

Explanation:

Which BEST describes the effect on the respiratory system if the human body did not contain a circulatory system?​

Answers

A

Explanation:

If the body had no respiratory system, then the body would not be able to exchange gases which may lead to body suffocation and then death

_____ plants are able to reduce photorespiration by creating a _____ concentration of _____ in bundle sheath cells where the calvin cycle occurs.

Answers

Answer:

C4,high, CO2

Explanation:

Which step constitutes the power stroke of muscle contraction?.

Answers

the myosin head moves toward the M line, pulling the actin along with it , as the actin is pulled, the filaments move approximately 10 nm toward the M line

Is NaCI a diatomic element

Answers

Answer:

Yes.

Explanation:

HCl, NaCl, and KBr are all examples of diatomic elements.

Which abiotic component of its ecosystem did the owl in the picture above use to build a safe nest?
OA. air
OB. rocks
OC. trees

Answers

Answer:

The answer is rocks

Explanation:

Abiotic factors are nonliving, and biotic factors are living or once living. The tree twigs were once living, and the air wasn't used, so the rocks are the only answer left.

Hope this helps!

B is the answer bc the best is on the rock and that is the only thing stopping the nest from falling

n aliens, yellow eyes are dominant over red eyes. Two monsters who both have yellow eyes have a baby monster who has red eyes. The daddy monster is convinced that the hospital gave them the wrong baby monster! You are brought in to solve the case! Could this REALLY be their baby? WHY OR WHY NOT????

Answers

Answer:

Yes

Explanation:

If one of the babies parents had a red eye rececent gene (a gene from THIER parents) then the baby monster would have red eyes, since red is dominant over yellow.

The feature of earth movement that takes about 26000 years is called

Answers

It takes Earth's axis about 26,000 years to complete a circular "wobble." This wobble is called axial precession. Earth's axis helps determine the North Star, and axial precession helps change it.

Answer:

Precession

Explanation:

its precession

Help please tell me if I'm wrong
i believe the answer is C. however I'm not certain.

Why do many people believe the current aid to Africa situation is doing more harm than good?

A) Countries are only relying on charitable contributions from religious based organizations.

B) There is not enough money being sent to Africa to do enough good.

C) Most government to government aid has been pocketed by corrupt officials.

D) Most people in Africa are not educated enough to use the money wisely.

Answers

Answer:

yes it is C

Explanation:

i saw the answer on quizlet

Which best describes how human circulatory and respiratory systems interact

Answers

Answer:

When a person inhales, the lungs expand and fill with fresh air. The respiratory system interacts with the circulatory system to transfer oxygen from fresh air to red blood cells in the lung arteries while also releasing carbon dioxide from the blood into the air in the lungs. When a person exhales, this used air leaves the body.

Explanation:

Butterflies laying their eggs on milkweed plants occurs at what level of the biosphere hierarchy? a. Ecosystem b. Biome c. Population d. Community.

Answers

Butterflies laying their eggs on milkweed plants occurs at the community level of the biosphere hierarchy.

What do you mean by Biosphere?

The biosphere may be defined as the area of the planet where organisms live, including the ground and most commonly air.

During the process of pollination, butterflies lay their eggs on the milkweed plant, which is considered under the community level of the biosphere hierarchy.

Therefore, Butterflies laying their eggs on milkweed plants occurs at the community level of the biosphere hierarchy.

To learn more about Biosphere hierarchy, refer to the link;

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Answer: d

Explanation:

Muscle tissue, one of the four basic tissue groups, consists chiefly of cells that are highly specialized for.

Answers

Muscle tissue, one of the four basic tissue groups, consists chiefly of cells that are highly specialized for contraction.

What is muscle tissue?

Muscle tissue are body tissues that are made up of cells, these cells helps to produce movement of the various body part.

This movement are enhance through contraction of the muscle and the tissue are adequately supplied with blood vessels.

Therefore, muscle tissue, one of the four basic tissue groups, consists chiefly of cells that are highly specialized for contraction.

Learn on muscle tissue here,

https://brainly.com/question/11954413

The female gametophyte is a _______ structure called an embryo sac, while the male gametophyte is a _______ structure called a pollen grain. When pollen attaches to the stigma of a flower, one of the sperm cells fertilizes an egg cell, producing a _______ zygote. Another sperm cell fertilizes the polar nuclei, forming a ________ endosperm. The _____ will eventually develop into the sporophyte.

Answers

The answers to the blank spaces in the question are as follows:

HaploidHaploidDiploidTriploidZygote

What is double fertilization?

Double fertilization is a specific feature of angiosperms involving two male gametes and one female gamete.

In double fertilization, both the female and male gametes are haploid structures i.e. contain one set of chromosome.

One of the haploid sperm cells fertilizes an haploid egg cell, producing a diploid (2n) zygote. However, the other sperm cell fertilizes the polar nuclei, forming a triploid endosperm.

The zygote will eventually develop into the sporophyte (vegetative plant).

Learn more about double fertilization at: https://brainly.com/question/305603

What do you think influences how fast a river flows?

Answers

Answer:

how ever fast the wind is

Explanation:

Answer:

The shape of its channel, the gradient of the slope that the river moves along, the volume of water that the river carries, and the amount of friction caused by rough edges within the riverbed.

Explanation:

Everything above what I said: is influencing the speed of a river

In photosynthesis what is the end product of carbon dioxide?

Answers

Answer:

Carbohydrates(glucose) and Oxygen.

Explanation:

During the process of photosynthesis, Carbon dioxide and Water combine in the presence of Sunlight and Chlorophyll to produce Carbohydrates (glucose) and Oxygen. Thus, the end products of photosynthesis are Carbohydrates(glucose) and Oxygen.

Why is the coral snake venomous?​

Answers

Answer:

Coral snake bites can be extremely painful and can cause muscular paralysis. The coral snake's venom is one of the most potent venoms in the animal world because it contains powerful neurotoxins. The neurotoxins are responsible for the rapid paralysis and respiratory failure in the coral snake's smaller prey.

Explanation:

If an herbicide were to selectively inhibit development of antheridia in a moss colony, what would be the consequence?

Answers

The most likely consequence of a herbicide that selectively inhibits the development of antheridia would be the reproduction of female plants only.

Whta are antheridia?

The antheridia are haploid reproductive structures that produce male gametes in some types of plants.

The antheridia can generate a special type of biflagellate sperm (male gametes) required during se_xual reproduction.

Conversely, archegonia is a structure that produces a single egg, i.e., the ovum or female gamete.

Learn more about antheridia here:

https://brainly.com/question/1286197

Why does the DNA move through the gel when an electrical current is generated?

Answers

Answer:

DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode. Shorter strands of DNA move more quickly through the gel than longer strands resulting in the fragments being arranged in order of size.

Explanation:

True or False: In a box and whisker plot, 50% of the data is between Q1 and the median

Answers

Answer:

Minimum = 0%

Q1 (Lower Quartile) = 25%

Median = 50%

Q3 (Upper Quartile) = 75%

Maximum = 100%

That is true. In a box and whisker plot, Q1 is the first quartile (first 25% of the data) is between the lower quartile (Q1) and the median. The median is the middle, so 50% will fall between Q1 and the median. It's important to understand the various measures of central tendency and how they can be used to analyze the spread of data within a given set, which can provide valuable insights and understanding about the overall trends present within the data.

Describe two effects that ingesting microbeads has on aquatic organisms.

Answers

Answer:

micro-beads can cause blockages in the digestive tracts of aquatic organisms.

  This can prevent digestion of food hence the organism will eventually die of starvation.

micro-beads can increase organic matter in a pond hence killing the aquatic organisms present.

  This increases the number of decomposers which grow rapidly and use a great deal of oxygen during their growth and lead to depletion of oxygen as the decomposition process occurs. A lack of oxygen can kill aquatic organisms.

Explanation:

Monosaccharides disaccharides and polysaccharides are examples of:.

Answers

Answer:

Carbohydrates

Explanation:

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