3 plz help if you can its worth 11 points+
Select the correct answer.
A population of lizards lived in an ecosystem that was prone to flooding. After many generations, most of the lizards in the population had longer legs than their ancestors, which helped them flee from floods. Which statement best explains this change?
A.
The lizard genes spontaneously mutated to address the flooding threat.
B.
Genetic variation among lizard limbs allowed for natural selection to occur.
C.
The limbs were artificially selected because humans probably caused the flooding.
D.
The lizards with longer limbs cloned themselves, ensuring survival of the species.

Answers

Answer 1

Answer:

b

Explanation:

this is correct bc it shows that although a mutation occurred, it happened over time, and so now, the lizards attained a new adaption which allows them to avoid the floods

Hope this helps!


Related Questions

WILL MARK BRAINIEST PLS HELP!
Using the traits and alleles from this chart, indicate the possible genotype(s) for the following plants:
22. Homozygous wrinkled ……………………………………………………………..
23. Homozygous round …………………………………………………………………..
24. Round heterozygous…………………………………………………………………..
25. Green hybrid…………………………………………………………………..
26. Heterozygous green pods…………………………………………………………………..
27. Yellow pods…………………………………………………………………..
28. Short stems…………………………………………………………………..
29. Tall stems…………………………………………………………………..
30. Yellow seeds…………………………………………………………………..
31. Pure tall stem ………………………………………………………………….
32. Homozygous tall stem…………………………………………………………………..
33. Heterozygous tall stem…………………………………………………………………..

Answers

Answer:

look below

Explanation:

22. rr x rr

23. RR x RR

24 Rr x Rr

25. ??

26. Gg x Gg

27. gg x gg

28. ll x ll

29. Ll x LL

30. YY x YY, Yy x Yy

31. LL x LL , Ll x Ll

32. LL x LL

33. Ll x Ll

What can farmers use to prevent the harming of beneficial insects?
a.
spray insecticides
c.
new pesticides
b.
natural pest control
d.
non-aerosol insecticides

Answers

Answer:

Natural pest control

Explanation:

Because its a way to be eco friendly using natural sources which does not harm insects

i think the answer is a or b

How does coral reef damage negatively affect the land?

Answers

Answer:

it can cause a loss of oxygen. these are living things people need to stop killing things lol

Explanation:

Do you think plants will grow better under a grow light or with the sun? Explain your answer.

Answers

Answer:

The Sun

Explanation:

I chose this because i think because the Sun is natural light and the grow light isn't it will grow better,

Many scientists believe that dinosaurs became extinct due to
O floods caused by strong storms.
O a harmful genetic mutation.
O the introduction of a predator.
O an asteroid impact

Answers

Answer:

an asteroid impact

Explanation:

The asteroid that formed a crater located on the edge of the Yucatan peninsula thought to be responsible for the mass extinction of dinosaurs.

Answer:

Its D an asteroid impact.

Explanation:

:)

Which best describes the different features or a plant life cycle

Answers

Answer:

The different features of the plant cycle can be based described as zygote is a diploid cell that is produced by fertilization. Explanation: zygote is formed due to the fusion of the female and male gamets. This is a type of sexual reproduction that takes place in plants.

Explanation:

Which is the best reason that a geologist might carry a small dropper bottle filled with hydrochloric acid
when doing fieldwork?
to wash rock samples to make them easier to study
to wear away large areas of rock to see what is underneath
to test for the presence of carbonate minerals in a rock
to use as an emergency eyewash in case rock dust gets in the eyes

Answers

Answer:

C, to test for the presence of carbonate minerals in a rock

Explanation:

I did this a few weeks ago on Edge. Hydrochloric acid isn't for rock washing, they wouldn't use it to wear away rocks since it'd ruin the sample I think, and you will go blind if you put it in your eyes

Geologist carry dropper bottle filled with hydrochloric acid when doing fieldwork is to test for the presence of carbonate minerals in a rock.

Test for carbonate minerals

Hydrochloric acid is used to test for presence of carbon iv oxide in compounds.

When hydrochloric acid reacts with carbonates, it produces effervescent due to the prensence of carbon iv oxides in the compound.

Geologist will use this acid (hydrochloric acid) to check if the rock sample contains carbonate minerals.

Thus, the best reason that a geologist might carry a small dropper bottle filled with hydrochloric acid when doing fieldwork is to test for the presence of carbonate minerals in a rock.

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In fruit flies, red eyes are a dominant trait. A scientist crossed a
heterozygous red eyed fruit fly with a white eyed fruit fly. What color
eyes would the scientist expect to see in the fruit fly offspring?
Select one
50% Red eyes, 50% White eyes
75% Red eyes, 25% White eyes
0% Red eyes, 100% White eyes
100% Red eyes, 0% White eyes

Answers

Answer:50 50

Explanation:

10. A covalent bond forms between two
DLL

Answers

Answer:

A covalent bond forms between two Nonmetals!

Explanation:

A covalent bond always forms between the electrons of two Nonmetals.

hope it helps!

Which of the following is a renewable resource used for human needs?
A) rocks
B) fossil fuels
C) water
D) minerals

Answers

I believe the answer is water

Water is a renewable resource used for human needs. So, the correct option is C.

What are Renewable resources?

Natural resources that regenerate with time and can be used endlessly without getting exhausted are known as renewable resources. These resources are often derived from sources such as sunlight, wind, water and biomass that can regenerate or replenish themselves.

Because they provide a source of energy and materials that can be used without negatively impacting the environment or depleting resources, renewable resources are an important component of sustainable development. Water is a renewable resource used for human needs.

Renewable resources are becoming more and more important as a sustainable alternative to non-renewable resources such as fossil fuels, which are limited and can adversely affect the environment.

Therefore, the correct option is C.

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Primary succession occurs in an area that has:

1).Soil
2).Some soil
3).No soil
4).None of these

Answers

Answer:

3, No Soil

Explanation:

Which of the following molecules link together to form starch? A. Glucose B. Galactose C. Fructose

Answers

A : glucose molecules

What are the effects of soil pollution?

Answers

Answer:

Soil pollution produces negative effects for the environment.

Explanation:

Soil pollution can cause many different negative effects for the environment and for organism health. Some effects are:

Nutrient imbalance - plants cannot get enough nutrients in one area since the soil is either devoid of nutrients or high one 1 nutrient and too low on othersAcidification - pollution can cause the soil to become acidified, affecting organisms and the water cycle. This acid will be harmful to plants and harmful to animals drinking it. Since it also affects the water cycle, it can affect humans by burning skin if touched or polluting our drinking sourcesContamination of groundwater - with soil pollution, it can seep deep into the Earth. This can cause natural aquafers and underground lakes/water to become polluted as well, giving us even less freshwater

All in all, soil pollution is not positive at all and should be reduced at all costs to help nature and our planet Earth.

the distance from earth to the north star is about 430 light years. which of the following statements describes why scientists use the light year unit to measure distances in space?

a. a light year unit is very small and distances in space are very small
b. a light year unit is very small and distances in space are very large
c. a light year unit is very large and distances in space are very small
d. a light year unit is very large and distances in space are very large

Answers

Answer:

i am not sure but i think is D

A light year unit is very large and distances in space are very large. So, the correct option is D.

What is Light year?

A light year is defined as the larger unit of length which is used to express astronomical distances and is approximately equal to 9.46 trillion kilometers or 5.88 trillion miles.

A light-year is expressed as the distance that light travels in a vacuum in one Julian year, which is 365.25 days because it includes the term "year", the term light-year is sometimes misunderstood as a unit of time.

1 light-year   = 9460730472580800 metres

Light year is used as a unit to express distances to celestial objects, for example, if a star is 4 ly away from earth, it means that light from the star will take 4 earth years to reach us.

Therefore, a light year unit is very large and distances in space are very large. So, the correct option is D.

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Which of these describes the gravitational force from a planet?

Choose the correct answer.

large and pulls objects toward itself

small and pulls objects toward itself

large and pushes objects away from itself

small and pushes objects away from itself

Answers

Large pushes objects toward itself

A carbohydrate is broken down into smaller sugars, this is an example of what type of energy?

A.chemical
B.mechanical
C.sound
D.nuclear

Answers

The answer is: A
Chemical energy

A. 25%
B. 50%
C. 75%
D. 100%

Answers

Answer:

B. 50%

Explanation2 of the offspring are heterozygous (Yy). 2/4 = 50%

Answer: 50%

Explanation:

what did robert paine do with the purple star fish

Answers

Answer:

This is what i found

PLEASE HELP
1. Which is the simplified version of Kepler’s third law when one of the planets being compared is Earth?
T=r^2
T^2=r^3
T^2=r
T^3=r^2

2. Which of the following are effects of melting sea ice? Select the two correct answers.
The exposed water can radiate more heat to the atmosphere than it could when insulated by the ice cover.
The exposed water reflects back more sunlight than did the ice.
The exposed water absorbs more thermal energy from the sun than did the ice
The exposed water absorbs heat and then sinks, replaced by cooler water.

3. A group of scientists are studying observable matter in a cluster of galaxies. They conclude that the cluster has only a small percentage of the mass required to keep it from flying apart. Why does the cluster remain intact?
The orbital speed of the galaxies in the cluster is slow enough to keep the cluster intact.
Dark matter provides the mass and gravity needed to keep the cluster together.
The orbital speed of the galaxies in the cluster is fast enough to keep the cluster intact.
Baryonic matter provides the mass and gravity needed to keep the cluster together.

Answers

Answer:

1. T^2=r^3 ( or T² = r³)

2. "The exposed water reflects back more sunlight than did the ice"

and

"The exposed water absorbs more thermal energy from the sun than did the ice'

3. Dark matter provides the mass and gravity needed to keep the cluster together.

Explanation:

1. Which is the simplified version of Kepler’s third law when one of the planets being compared is Earth?

Kepler's Third law of planetary motion is the ratio of the square of the orbital period of a planet is to the radius of orbit of a planet or those of other planets.

This means that, Kepler's Third law of planetary motion states that the square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.

Mathematically, Kepler's Third last is represented as

T² : r³

= T² = r³

Therefore, the second option,T^2=r^3 which is equivalent to T² = r³ is the correct option

2. Which of the following are effects of melting sea ice? Select the two correct answers.

The melting of sea ice causes a lot of changes in the climate of an environment.

The presence of sea ice in oceans, reduces the surface area thereby causing a minimal reflection of sunlight but once sea ice melts, the surface area of the water is increased and this would results in a reflection of sunlight.

The sea ice absorbs less thermal energy or radiation from the sun(solar energy) and keeps the surface cooler but once the sea ice is melts, the resulting water, absorbs a lot of thermal energy or radiation from the sun, causing the surface of the water to be hot.

Therefore, the options "The exposed water reflects back more sunlight than did the ice" and

"The exposed water absorbs more thermal energy from the sun than did the ice" are the correct options.

3. A group of scientists are studying observable matter in a cluster of galaxies. They conclude that the cluster has only a small percentage of the mass required to keep it from flying apart. Why does the cluster remain intact?

It has been observed that galaxies present in the solar system have an attraction for one another such that they are drawn to each by force of gravity that is present in the solar system. And because of these, galaxies form clusters in the solar system.

Dark matter is a large amount of matter that is present in the solar system. Dark matter is the reason by which galaxies can form and maintain the clusters that they form around each other because it provides them with the force of gravity and sufficient mass that the galaxies require to prevent them from separating or flying away(apart) from one another

Therefore, the option "Dark matter provides the mass and gravity needed to keep the cluster together" is correct.

The simplified version of Kepler’s third law in a situation when one of the planets is compared to Earth will be T³ = T².

The effects of melting sea ice include:

The exposed water reflects back more sunlight than did the ice.The exposed water absorbs more thermal energy from the sun than did the ice.

A cluster will remain intact because the dark matter provides the mass and gravity needed to keep the cluster together.

It should be noted that Kepler's third law of planetary motion simply represents the ratio of the square of the orbital period of a planet is to the radius of orbit of other planets. This can be expressed mathematically as T³ = T².

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what best describes a tetrad

Answers

Answer:

The tetrad is the four spores produced after meiosis of a yeast or other Ascomycota, Chlamydomonas or other alga, or a plant.

What is displacement of metals?

Answers

Search Results
Featured snippet from the web
Displacement reactions. Displacement reactions occur when a metal from the electrochemical series is mixed with the ions of a metal lower down in the electrochemical series. The atoms of the more reactive metal push their electrons on to ions of the less reactive metal. An example can be seen below.
It occurs when a metal from the electrochemical series is mixed with ions of a metal lower down in the electrochemical series.

Which organisms are the best example of producers in a food web?


killer whales


zooplankton


krill


marine phytoplankton

Answers

Marine phytoplankton

♡ The Question ♡

-Which organisms are the best example of producers in a food web?  

* ୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

♡ The Answer ♡

-Marine Phytoplankton!

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

♡ The Explanation/Step-By-Step ♡

-No Explanation/Step-By-Step provided!

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

♡ Tips ♡

-No tips provided!

ATP molecule What molecule(s) is produced by these activities?

Answers

Answer:

Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules

Explanation:

Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules

which of the four DNA strands match the strand in the diagram by base pairing ?

Answers

Answer: I believe the answer you're looking for is Adenine goes with Thymine and Cystosine goes with Guanine.

Hope this helps!!

The four DNA strands that match the strand in the diagram by base pairing is GGTGACT. The correct option is A.

What is base pairing?

A base pair, which consists of two nucleobases joined by hydrogen bonds, is the basic building block of double-stranded nucleic acids.

They contribute to the folded shape of both DNA and RNA and serve as the building blocks of the DNA double helix.

base pair of DNA. The nitrogen-containing bases adenine (A), thymine (T), and cytosine (C), as well as guanine (G), couple together under normal conditions.

The structure of DNA is created by the binding of these base pairs.

In the given sequence, CCACTGA the base pairing can be done as GGTGACT.

Thus, the correct option is A.

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Your question seems incomplete, the missing image is:

An immune response is primarily due to the body's white blood cells
recognizing ?

Answers

Answer:

Foreign antigens

Explanation:

true or false aerobic cellular respiration produces more atp then anaerobic cellular respiration

Answers

Answer:

true

Explanation:

what connects the pharynx and the trachea

Answers

Answer:

Larynx.

Explanation:

The larynx is the organ that connects the lower part of the pharynx with the trachea.

Larynx.
The larynx is the organ that connects the lower part of the pharynx with the trachea.

Hi, how are you? Could someone help me with this? I would very much appreciate it.
Are the current life forms similar to those of 3.8 billion years ago? How do we know?

Answers

Answer:

No, not really. Over time, organisms have grown much more complex. Photosynthesis happened around 3.4 billion years ago and respiration around 2 billion years ago. These all serve as a testimony to the fact that organisms are in fact growing more complex. We have seen photoautotrophs arise, from the simpler chemoautotrophs, and they now in fact dominate the array of producers! Organisms don't only do fermentation now; they can also do anaerobic respiration and aerobic respiration too! Thus, current life forms are a lot more different today than 3.8 billion years ago.

Lipids are made mainly of

Answers

Answer:

Lipids are composed mainly of carbon and hydrogen.  but they can also contain oxygen, nitrogen, sulfur, and phosphorous. They provide nutrients for organisms, store carbon and energy, play structural roles in membranes, and function as hormones, pharmaceuticals, fragrances, and pigments.

Explanation:

I hope this helps! :)

Answer:

triglyceride.

Explanation:

2. What are the two types of ecological succession?

Answers

Answer:

There are two main types of succession, primary and secondary. Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes.

Explanation:

Answer:

Ecological succession is a process of change in ecosystems that takes place over time, and that we can observe both in time and in space. ... There are two types, the primary sequence and the secondary sequence.

"I hope it helps you it was a pleasure to help you".

Explanation:

Other Questions
point c' (_4, _3) is the image of c (_2, _3) under a translation When light rays appear to be coming from behind a mirror, what type of image has been formed?A.imaginaryB.realC.planeD.virtual f(x) = 5x^2 - x + 8g(x) = 9x - 1 Find the volume of this figure The equations 4 x minus 5 y = 5, 3 x + 10 y = 20, 4 x minus 5 y = negative 5, and 3 x + 10 y = negative 20 are shown on the graph below. On a coordinate plane, there are 4 lines. Green line goes through (0, 1) and (2.5, 3). Orange line goes through (0, negative 1) and (2.5, 1). Blue line goes through (0, 2) and (3.5, 1). Pink line goes through (0, negative 2) and (3.5, negative 3). Which system of equations has a solution of approximately (2.7, 1.2)? 4 x minus 5 y = negative 5 and 3 x + 10 y = negative 20 4 x minus 5 y = 5 and 3 x + 10 y = 20 4 x minus 5 y = 5 and 3 x + 10 y = negative 20 4 x minus 5 y = negative 5 and 3 x + 10 y = 20 find the missing angle in the triangle Which disease is related to a malfunctioning pancreas?lupustype 2 diabetessickle cell diseaseHuntingtons disease Which of the following should be performed on an unconscious, unresponsive person?Question 2 options:Heimlich ManeuverCPRshaking themnone of the above 2$ is what percent of $10 what are China 's traditions? Create a campaign to-do list for a presidential candidate trying to secure the party's nomination. Read the steps below, and note what needs to be done toaccomplish each oneStepTo DoForm an exploratory committee.Start typing hereJoin the race.Set up a campaign organization.Raise funds.Develop a campaign strategyCampaignRun in primaries and caucuses.Attend the national convention. When multiplying two negative integers what is the sign of the product positive negative zeroor one PLEASE. ANSWER. QUICK ITS TIMEDRead the passages.EditorialChildren need lengthier recess sessions in order to reap the full benefits from the play session. They need ample time to move their body, to explore, to tinker, to problem-solve, to work through their emotions, and to dive deep into their imaginations. Short fifteen- to twenty-minute recess sessions often interrupt the children just as they are about to figure out who and what they are going to play."How Schools Ruined Recessand Four Things Needed to Fix It,"Angela HanscomNewspaper ArticleOne result of allowing kids more time for recess, [Principal McLain] said, has been increased instructional time "because the kids come back in and settle down and get to work because they know they will receive another recess before long." He also said teachers referred kids to the office for disciplinary action less often as a result of the program and found that "kids are solving their own problems much more independently.""Why Some Schools Are Sending Kids Out for Recess Four Times a Day,Valerie StraussHow are the two sources similar?They both focus on the role of recess in schools.They both focus on the benefits of shorter recess times.The authors work together to present the information.The authors are famous experts in child development. Which of the following events happened during President Harding's term?O A The Supreme Court strengthened state laws protecting laborunionsO B. The Supreme Court made it easier for large businesses to operate.O c. The Supreme Court ruled in favor of extended regulation of childlaborO D. The Supreme Court decided to break up large corporations. Natural selection is an evolutionary mechanism by which Kayla adds the same number to both the numerator and denominator of the fraction 1/10 her resulting fraction equals 2/3 what number did she add to both numerator and denominator of her original fraction Which of these is most likely to become a carbon film ? A sea creatures shellA flowering plant A tree trunk What is the area of the base of a cylinder with a volume of 174 in.3 and a height of 12 inches? how many solutions does : 3y = -6x + 9 y = -6x + 9 Which value in this data set is an outlier?4,5, 1, 7,4,5,8,9,6,5,4,9,7O A 1OB. 23OD9