Which option describes a mass extinction?
А.
a large meteorite hits the Earth; many species rapidly disappear from the fossil record
B. the amount of sunlight on Earth Increases; organisms of a single species increase in number
C. glaciers cover the Earth; many species rapidly increase in number and take over
D
a small volcano explodes; organisms of a single species disappear

Answers

Answer 1
A you better mark me branliest
Answer 2
The answer is A! A mass extinction is where many species die at once.

Related Questions

What part of the cell cycle is represented by the picture labeled as steps 2-4?

Answers

Answer:

Does your bio textbook show you?

Why are monosomies rarely detected?

Answers

Autosomal trisomies and monosomies are rare in humans because zygotes with these chromosomal aberrations are rarely viable. Hope this helps! Mark brainly please!

Hydraulic fracturing technology is used to produce nuclear power.
a. True
b. False

Answers

The answer is a.true

Answer:

False

Explanation:

dimples (D) is dominant; no dimples (d) a man who is heterozygous for dimples marries a woman who has no dimples. the genotype of the man would be?​

Answers

Answer:

the genotype of the man would be Dd

Explanation:

Heterozygous means having to different alleles (ex. Ff) so the mans genotype would be Dd

please help!!!!
Project: Global Temperature Change ​

Answers

Answer:

whats the project is it an essay

Explanation:

Control-part of the body that determines what to do with the information about the change in setpoint (I will give brainliest)

Answers

Answer:

Hypothalamus

Explanation:

The hypothalamus is involved in different daily activities like eating or drinking, in the control of the body's temperature and energy maintenance, and in the process of memorizing and in stress control. It also modulates the endocrine system through its connections with the pituitary gland.

Which molecules are used for releasing energy in the cell
1. glucose, carbon dioxide and water
2glucose, oxygen and amino acids
3glucose and oxygen
4glucose and amino acids

Answers

Answer: glucose and Oxygen

Explanation: Glucose is converted to water and carbon dioxide in mitocondries and energy is released. Oxygen is needed to reaction.

Amino acids can be converted to energy but that is not primary purpose of amino acids.

What are some characteristics of ecotourism in Africa?​

Answers

Answer:

A few of the ecotourism features are the traditional practices, encouraging interaction between visitors with the local villages to increase sale of handicraft items, the promotion of cultural dance, music as well as hiring local workers to maintain the lodge

How is RNA different from DNA?
A. DNA is double stranded, contains uracil, sugar is ribose

B. DNA is single stranded , contains thymine , sugar is deoxyribose

C. RNA is single stranded, contains thymine , sugar is ribose.

D. RNA is single stranded , contains uracil , sugar is ribose

Answers

Answer:

D. RNA is single stranded , contains uracil, sugar is ribose

Answer:

D. RNA is single stranded , contains uracil , sugar is ribose

Explanation:

RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose

Which best explains why viruses do not have special structures or enzymes that allow them to make their own food?
Viruses can use energy of living cells that they infect.
Viruses can replicate inside a host that they infect.
Viruses can cause contagious illnesses in host cells.
Viruses integrate their RNA or DNA into infected cells.

Answers

Answer:

Viruses can replicate inside a host that they infect. ... The epiglottis closes the air pathway so that food will not enter it.

Answer:

B.) Viruses can replicate inside a host that they infect.

Explanation:

I just finished this test and got it right. This was the answer for me

Although animal nervous systems differ in complexity, their nerve cells are still remarkably similar. true false

Answers

Answer:

TRUE

Explanation:

The nervous system only exists in animals. Neurons are the nerve cells that compose the nervous system.

The neuron´s principal function is to catch stimuli from the exterior convert them into nerve impulses that get transported to the control centers. These control centers interpret the signal and send an answer to the stimuli.

The control centers in invertebrates are ganglia, while the vertebrate´s control centers are the spinal medulla and the encephalon.

The signal transport occurs from cell to cell in inferior animals and through nerves in superior animals.

There is a progressive increase in the complexity of the nervous system. It evolved from primitive animals to the most superior ones. This evolution is especially noticeable in the development of the encephalon as the control center.

However, the basic nerve cell is very similar in all animals.

What reflex kicks in if your epiglottis reflex malfunctions?

Answers

Answer:

The coughing reflex kicks in, only if the epiglottis reflex fails to. If the coughing reflex fails then the Heimlich maneuver may be needed.

How does you model demonstrate the differences between the types of tectonic plates and the resulting code derivations in the atmosphere

Answers

Answer:

Suppose we add up alternate Fibonacci numbers, Fn-1 + Fn+1; that is, what do ... L(1)=1 and L(3)= 4 so their sum is 5 whereas F(2)=1; L(2)=3 and L(4)= 7 so their ... What is the relationship between F(n-2), and F(n+2)? You should be able to find a ... Fib(N); K (an EVEN number!), Lucas(K) and Fib(K) in each expression like ...

Explanation:

Describe why food needs to be digested from large to small molecules.

Answers

Answer:

Food must be broken down into nutrients for the body to use for energy, development, and cell repair. Before the blood absorbs and transports nutrients to cells in the body, food and drink must be broken down into smaller nutrient molecules.

What is a wetland?

A]an ecosystem that is made up of salt water at least part of the year
B]an ecosystem in which plant roots are submerged during some part of the year
C]an ecosystem in which half the area is wet and the other half is dry
D]an ecosystem with running water at least part of the year

Answers

Answer:

A:)))))

Explanation:

hope this helps:))))))))))))))

Which statement best explains the significance of meiosis in the process of evolution within a species?

-meiosis produces eggs and sperm‘s that are alike
-equal number of eggs and sperm are produced by meiosis
-meiosis provides for variation in egg in sperm cell produced by an organism
-The egg and sperm cells produced by muses ensure continuation of any particular species by asexual reproduction


No links please.

Answers

Answer:

meiosis provides for variation in egg in sperm cell produced by an organism

Explanation:

meiosis is like mitosis for sex cells and it makes 4 individual cells at the end

An outer waxy, waterproof coating on plants.

Answers

Cuticle composed of cutin it’s a hydroxy fatty acid helps the plant retain water

A circuit consists of a wire, a lightbulb, a switch, and a battery. What would happen if the battery were replaced with a section of wire?

Answers

The circuit would have no voltage and no current.

Which of the following individuals is true-breeding for all traits? A. RrYY B. RRYy C. RRYY D. RrYy ellus Corporation. All Rights Reserved.​

Answers

i believe it is c or d. good luck

The true breeding individual for all traits is RRYY.

What is True breeding ?

A true-breeding organism, sometimes also called a purebred, is an organism that always passes down certain phenotypic traits to its offspring of many generations. This means that the parents are homozygous for every trait.

Since RRYY is homozygous for all traits, it will be a true breeding organism if crossed over with another RRYY organism. This is because all the off-springs produced from this cross will also be RRYY that is purebred.

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What kind of inheritance do you think the trait for the pedigree shows

Answers

Answer:

The information from a pedigree makes it possible to determine how certain alleles are inherited: whether they are dominant, recessive, autosomal, or sex-linked. To start reading a pedigree: Determine whether the trait is dominant or recessive. If the trait is dominant, one of the parents must have the trait.

Explanation:

how was science relevant to the world​

Answers

Answer:

Science helped create almost everything today, medicinces,drought resistant food, technology, further education in doctoring, electricity etc.  

Explanation:

Describe what it means when we say that DNA replication is semi-conservative:

Answers

Answer: Semi-conservative replication means that during DNA replication, the two strands of nucleotides separate. Both strands then form the template for free nucleotides to bind to to create the two identical daughter strands. Hence each daughter strand has half of the DNA from the original strand and half newly-formed DNA.  brainliest

Explanation:

Drag each tile to the correct box.

The specific heat of three substances in the image are given in the table.


stamped concrete - 0.75
grass-covered soil - 1.01
Water - 4.18

Place the areas in order based on how fast they’ll heat up on a sunny afternoon. Start with the fastest and end with the slowest.


PLEASE ANSWER QUICKLY I WILL GIVE BRAINLIEST!!

Answers

Answer:

Correct answer is A-C-B

Explanation:

Just took the test

The concrete has the lowest specific heat, so it requires very little heat to heat up, making it the fastest substance to heat up; the second is grass, and the third is water, which requires a high temperature to heat up, so A-C-B is the correct order.

What is the significance of the specific heat of the substances?

Specific heat is explained as the amount of heat that is needed to raise the temperature by 1 degree, and here the water needs the highest temperature to raise the temperature by 1 degree as a result, even if the water gets a little bit more temperature, it will not be too hot right away.

Hence, the concrete has the lowest specific heat, so it requires very little heat to heat up, making it the fastest substance to heat up; the second is grass, and the third is water, which requires a high temperature to heat up, so A-C-B is the correct order.

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What ingredient in the BLT Sandwich has the highest carbon footprint?

Answers

The answer is bacon

Answer:Bacon

Explanation:The bacon leaves the most carbon footprint since bacon takes so much heat and energy to cook.

What is the term for a strong response to a harmless antigen in the environment? Notice the word Harmless in the question.


a. inflammatory response




b. an autoimmune disease


c. cell-mediated immunity


d. an allergy

Answers

Cell mediated immunity

hat are the two possibilities for Fred’s genotype?BRAIN 10 POINTS ​

Answers

Answer:

11%2F6_ -Amoeba Sisters Video Recap and Practice Problems.docx

Explanation:

#maxmeasabrainliest

How would the author of "Are 'Green' Cars Really All That Green?" dispute the claim in "Cars Without Gasoline Are Here" that biofuels are a good replacement for fossil fuels? ​

Answers

Answer:

A. By noting that biofuels come from vegetables such as corn and sugar beet.

Explanation:

The author claims that biofuels are a good replacement for fossil fuels in the vehicles because it produced less carbondioxide gas as compared to fossil fuels. The biofuels also produced pollution but less as compared to fossil fuel. This biofuel is extracted in the form of Bioethanol which is a type of alcohol made by fermentation process of starch crops such as corn, sugarcane, or sweet sorghum. This biofuel made from biological materials that decrease the production of carbondioxide gas.

In all reptiles, birds, and mammals, the processes of excretion, water and salt balance,
and the regulation of pH in body fluids are controlled by the kidneys. This is an example
of the organism maintaining
a. reabsorption
b. homeostasis
c. insulation
d. hibernation

Answers

Should be homeostasis

In order for natural selection to occur, there must be variation within the population. Which statements are an accurate reflection
of the relationship between natural selection and variation in the population? Select ALL that apply.
A)
Mutations are caused by natural selection.
B)
Mutations are a source of variation within any population.
Genetic variation is increased in populations with sexual reproduction.
D)
Genetic diversity is decreased overall by the mechanism of natural
selection
E)
Natural selection lowers the population size but maintains the genetic
variation in a population.

Answers

Answer:

the correct answer is b, c, d

Explanation:

i just took the quiz on usatestprep

The correct answer is (B) and (C)

What are Mutations?

Mutation is a change in the DNA sequence in any organism.Mutation will cause the formation of new nucleotide sequence resulting in genetically diverse population.

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Which gymnosperm is an example of a cycad?

Answers

Answer:

C

Explanation:

brainliest would help:]

Answer:

The answer is c the one that is shaped like a cone

Explanation:) I just answered the question and it was right. brainliest would be very nice please :)

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define the term semiconductor and give an example of a metalloid 3. The following sequence shows the number of pushups Kendall did each week, starting with her first week of exercising: 6, 18, 54, 162(a) What is the recursive rule for the sequence?(b) What is the iterative rule for the sequence? What is one way humans can preserve biodiversity Complete the following mini-dialogues by selecting the missing words Maths equation need help please Find the sum of the interior angle measures of the polygon. Don't guess!I will mark brainliest if its correct!Don't answer if you don't know!Also no links!And show your work plz! Which expression has a value located to the right of 1 on the number line? a) -1 - 7 b ) 1 - 7 c) - 7 - 1 d) 7 + 1 PLEASE HELPP, NO LINKS AND DONT ANSWER JUST FOR POINTS OR YOU WILL BE REPORTED! WILL GIVE BRAINIEST!P.S: I think it is trial 4 but I dont know the answer to the part B. Please help. I need the answers 5-8 Write 0.4% in simplest form Help me pleaseHELP ME PLEASEE HELP I NEED HELP ASAPHELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAPHELP I NEED HELP ASAPHELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP istory 20-21Organization of Louisiana's Legislative BranchThemembers.is the larger of the two houses and consists ofconsists of members.The other house, the Which idea is explicitly stated in the article "What a Bad Flu Season Could Cost the US Economy"? O A. Yearly flu outbreaks have a negative effect on the US economy. O B. Vaccines will get more effective with future scientific advancements. C. The flu vaccine is not reliable enough to be worthwhile, O D. When people get the flu, they feel utterly miserable. what percent of 15 is 0.6? how many different four-digit ID tags can be made if repeats are allowed NEED ANSWER ASAP You are asked to make 500. mL of a 0.250 M NaCl solution. How many moles of NaCl would you need? What is one strategy the United States is using in an attempt to keep terrorists from entering the country? 2(3r+4)3(r+1)=11