Which of the following items was Darwin able to use to study the structures of
extinct organisms?
A. Fossils
O B. Species
O C. Amino acids
O D. Adaptations

Answers

Answer 1

Answer:

a

Explanation:

because that is all he had left of extinct animal's.

Answer 2

Answer:

A

Explanation:ithink not sure


Related Questions

Trees grow more quickly in the ________ than the ________, and the tree rings show up as ________ colored bands.

summer, winter, darker
summer, winter, lighter
winter, summer, lighter
winter, summer, darker

Answers

Answer:

Its summer, winter, darker.

Explanation:

This is the answer I hope it helps you out.

Trees grow more quickly in the summer than in the winter, and the tree rings show up as darker colored bands.

What are seasons?

A season exists the year that stands determined by particular climate conditions. The four seasonsspring, summer, fall, and winter—follow one another regularly. Each includes its light, temperature, and weather designs that repeat yearly.

Summer exists the hottest of the four temperate seasons, happening after spring and before autumn. At or centered on the summer solstice, the earlier sunrise and latest sunset happen, daylight hours exist longest and dark hours exist shortest, with day length falling as the season progresses after the solstice.

Winter, the coldest season of the year, between autumn and spring; the name arrives from an old Germanic word that represents “time of water” and guides to the rain and snow of winter in middle and increased latitudes.

Hence, Trees grow more quickly in the summer than in the winter, and the tree rings show up as darker colored bands.

To learn more about seasons refer to:

https://brainly.com/question/1330138

#SPJ2

Which motion describes molecules in a solid at extremely low
temperatures? *
Moving freely and randomly in a space
Vibrating while closely packed together
Sliding around one another and colliding
Bumping together with some room to move​

Answers

Answer:

vibrating while closely packed together

Explanation:

Your question has been heard loud and clear.

Vibrating while closely packed together is the right answer

From Scenario 1: What is the Experimental group?
O the color change
O the type of bush
O the type of soil
O the type of fertlizer

Answers

Answer:

the colour change

Explanation:

because experimental group refers to the things that are exposed to or get affected by the independent variable

Answer:

The tpe of bush

Explanation:

Determine whether each of the following is a characteristic of DNA, RNA, or both.
Is single-stranded:
Contains nitrogenous bases:
Contains uracil:
Contains adenine:
Is double-stranded:
Is made of nucleotides:
Contains deoxyribose sugar:
DONE

Answers

Answer:

Both DNA and RNA are made from nucleotides, each containing a five-carbon sugar backbone, a phosphate group, and a nitrogen base. DNA provides the code for the cell's activities, while RNA converts that code into proteins to carry out cellular functions.

Hey I know it's a lot who ever answer all I'm going to give brainliest answer thxs 1) DNA is a microscopic molecule made up of only _____ chemicals. 2) In the __________ all that was known about life was what could be seen through a _________________________. 3) Chromosomes are made of _______________ and ______________. 4) The ingredients that make DNA are known by the letters _____________________. 5) The first pictures of DNA were taken using _______________ crystallography. 6) To determine the structure of DNA, Watson & Crick chose to build _______________. 7) Watson & Crick announced they had a DNA model on _____________________. 8) After seeing the model, Rosalind Franklin said that it was _____________________. 9) Chargaff’s rule stated that the amount of _____ and the amount of _____ were equal and the amount of _____ and the amount of _____ were equal. 10) The X-pattern of DNA was the result of a shape known as a _________________________. 11) In a molecule of DNA there could be hundreds of millions of _____________________. 12) The letter ____ always combines with ____ and the letter ____ always combines with ____. 13) Watson & Crick produced their final model on _________________________. 14) Rosalind Franklin never received a Nobel prize because she _______________. 15) For DNA to be replicated it must first be _____________________. 16) The single strand of DNA is then ________________ and formed into a ________________.

Answers

Answer:

1) nitrogen bases

2) the 1950’s; microscope  

3) DNA and protein

4) nucleotides

5) X-ray diffraction

6)  ball-and-stick model-building

7) 25 April 1953

8) was critical to Watson and Crick

9) adenine-timine; guanine-citosine

10) double helix

11) base pairs  

12) G with C and A with T

13) 1953

14) died

15) unwound

16) synthesized; a new molecule

Explanation:

Nitrogenous bases are used to construct nucleotides. Until the discovery of the helical shape of the DNA molecule, were only possible to identify the genetic material (chromosomes) by the microscope. Chromosomes are composed of DNA and proteins (histones). Nucleotides are the building blocks of the DNA molecule. The X-ray diffraction data obtained by Rosalind Franklin were used to decipher the DNA structure. The ball-and-stick is a molecular model where atoms are represented by spheres and bonds are represented by rods. Chargaff's rules indicate that the content of cytosine is equal to guanine and adenine is equal to thymine. Rosalind Franklin died of ovarian cancer in 1958.  The double-stranded DNA molecule must be unwound and then the DNA strands serve as templates to synthesize identical DNA molecules.

What effects are produced on environment by industry?​

Answers

Answer:

climate change, loss of natural resources, air and water pollution and extinction of species.industrial processes can have negative environmental impact.

Explanation:

Question 3 of 10
Which of the following is a function performed by a detrivore?
A. Producing oxygen from sunlight
B. Moving nutrients into the soil
C. Hunting prey
D. Protecting prey from predators

Answers

Answer:

B. Moving nutrients into the soil

Explanation:

Detritivorous include millipedes, springtails, woodlice, dung flies, slugs, many terrestrial worms, sea stars, sea cucumbers, fiddler crabs, and some sedentary polychaetes such as worms of the family Terebellidae. All of which as you know help move nutrients to the soil.

Hope this helps, and have a good day! :)

Answer:

B. Moving nutrients into the soil.

Explanation:

A.P.E.X

Including the exosphere, how many layers does Earth's atmosphere
have?
A. 3
B.8
C. 4
D.5

Answers

Explanation:

The correct answer is 5.

Hope it helps.

The ovals above represent mangrove islands of various sizes and distances from shore. According to the MacArthur/Wilson Island Biogeography Model, which island is expected to have the LOWEST number of insect species at equilibrium

Answers

There are few island on earth which are insect free due to atmosphere and sea breeze which do not complements the insects breed.

These islands attract tourists more because of no or very few insects, tourist have no fear of getting sick during their stay on these islands.

Antarctica is mosquito free continent. The island in Antarctic ocean are mosquito and have very few insects due to lack of stagnant water available for their breeding.

Iceland, Seychelles and few other island are insect free or have very low amount of insects there. The coral island is all surrounded by water and there is no connection of this island with the land.

There is very less stagnant water and ponds which can cause the insects to survive.

Learn more at https://brainly.com/question/24372968

PLEASE HELP ME I'LL MAKE YOU BRAINLIEST!!!!!!!!!! Lichens can best be described by which of the following? a) autotrophic organisms and fungi in a mutualistic relationship b) photosynthesizing fungi that can live in harsh environment conditions c) saprophytic fungi that secretes acids to grow on and colonize rocks d) two heterotrophic fungi species that thrive on nutrients from the air

Answers

Answer:

a) autotrophic organisms and fungi in a mutualistic relationship

Explanation:

A lichen "is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species".

It is cyanobacteria + fungi, so it has to be two separate groups, and both cannot be fungi.

Your question has been heard loud and clear.

answer is option C , lichens do colonize on rocks most of the time , this is because they really are saprophytic fungi , that secrete acids to melt and make the rocks suitable for growing on.

Scientists at the tar pits discovered that many of the smaller animals they extracted from the pits still exist around Los Angeles today. But many of the larger mammals-such as woolly mammoths and saber-toothed tigers-are now extinct. Why do you think this is the case? What can scientists learn about Los Angeles' climate history by studying the specimens found in these tar pits?

Answers

More than one million bones were recovered in 1906. These bones represented 231 species of vertebrates and there were 234 species of invertebrates.

Los Angeles climate is relatively stable for over 50,000 years. The fossils of more than 180 insects were preserved in La Brea Tar Pits. The climate warming probes a link for evolution of Ice Age predators.

Learn more at https://brainly.com/question/14442796

Answer:

scientists at the tar pits discovered that many of the smaller animals they extracted from the pis still exist around los angeles today. But many of the larger mammals such as wooly mammoths and saber toothed tigers are now extinct. I believe this is the case because since bigger beasts couldnt take shelter in small protected burrows, perhaps they were done in by fierce environmental conditons. Or maybe with so many plants dying off, big herbivores simply had nothing to eat, and as they died out, so did the big carnivores.La brea tar pits are probing the link between climate warming and the evolution of ice age predators, attempting to predict how animals will respond to climate change today.

Explanation:

What is the division of a cell's cytoplasm
called?
A. Cytokinesis
B. Mitosis
C. Telophase
D. Telokinesis

Answers

Answer:

A

Explanation:

because in this phase cytoplasm division happened

Answer:

i think answer is Cytokinesis

What is one way private citizens can help conserve natural resources?



Answers

Answer:

By reducing their use of energy, water, and waste services

Use this list of technical steps for the following question: 1. Two cells were fused using a small electrical current. 2. An embryo was implanted into a "surrogate mother". 3. All nuclear DNA was removed from a sperm. 4. A cell was taken from an adult sheep. 5. All nuclear DNA was removed from an egg. What is the order of events in producing a cloned animal

Answers

Answer:

The correct order of events would be - 4, 5, 1 and 2.

Explanation:

In the process of producing the cloned there are various steps are involved. Carrying out these steps in order is essential to produce the cloned animal. These steps are in correct order are given as follows-

4. A cell was taken from an adult sheep or the animal that is desired to be cloned.

5. All nuclear DNA was removed from an egg of the sheep.

1. two distinct cells of the animal were fused together with the help of electrical current.

2. the embryo formed by fusing the cells now implanted into a surrogate mother.

Which of the following is a central idea of cell theory?
O Molecules are made out of two or more cells joined together.
O Cells join together when they reproduce.
O Cells come from preexisting cells.
O Atoms are the basic unit of function in living things.

Answers

Answer:

[tex]cells \: come \: from \: pre \: exixting \: cell \\ thank \: you[/tex]

Which of the following statements are true about antibodies?
A. Polyclonal antibodies are part of the natural immune response; monoclonal antibodies are clones of plasma cells used for medical research.
B. Polyclonal antibodies are used for the treatment of cancer; monoclonal antibodies are used for medical research.
C. Monoclonal antibodies work against many types of antigens; polyclonal antibodies work against a specific antigen.
D. Both Polyclonal and Monoclonal antibodies are naturally produced in immune responses.

Answers

Answer:

The answer are A and D.

Explanation:

ANTIBODIES

Antibodies are immunoglobulin produced in the body by B cells to help i

For immune response or fight against any foreign invade in the body.

There are two common classification of antibodies and these are;

1. Monoclonal antibodies are produced in the laboratory that can help to restore and improve the immune system against cancer attack.

They bind to the antigens and are many on the surface of cancerous cells than normal cells. They are use for medical research.

2. POLYCLONAL ANTIBODIES are produced by different B cells the body. They are produced from heterogeneous molecules in live animals. They can bind to numerous antigens. They are part of the natural immune response of the animals. They are produced by injecting the animal with immunogen.

Therefore, Polyclonal antibodies are part of the natural immune response; monoclonal antibodies are clones of plasma cells used for medical research.

Both Polyclonal and Monoclonal antibodies are naturally produced in immune responses

Answer:D

Explanation:

D

what is the role of pancreas in digestion

Answers

Answer:

Explanation:

The pancreas is a glandular organ in the digestive system and endocrine system located in the abdominal cavity behind the stomach. It is an endocrine gland producing several important hormones, including insulin, glucagon, somatostatin, and pancreatic polypeptide, all of which circulate in the blood.

The pancreas produce pancreatic juice which has pancreatic enzymes that continue the digestion of proteins, carbohydrates and fats in the duodenum. Always remember that unlike the gastric juice pancreatic juice is alkaline.

Functions of the large intestine include Select one: A. most of the chemical breakdown of food. B. absorption of bile salts. C. secretion of vitamins. D. reabsorption of water and compaction of feces. E. production of gas to move waste toward the rectum.

Answers

I'm afraid brainly won't let me upload the answer so I attached it to a file.

It appears that your answer contains either a link or inappropriate words. Please correct and submit again!

Which one of the codons below would stop the translation of mRNA by ribosomal subunits?
a ATG, AAG, AAA
b CUG, AUG, GUA
c UAG, UAA, UGA
d AUG, ATG, GTU

Answers

Answer:

c

Explanation:

UAG,UAA,UGA

I've picked the opposite of the pair used to translate mRNA

Pls I need help with this question they didn’t say anything about it

Answers

Answer:

I don’t know

Explanation:

According to Piaget, children have acquired the cognitive skill of conservation when they're able to

Answers

Answer:

The question lacks options, the options are:

A. understand the viewpoint of other people.

B. realize that the term heavy describes an object one way and the term big describes it another way

C. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal.

The answer is C

Explanation:

Piaget proposed the theory of cognitive development, which talks about how human intelligence is developed. Piaget worked with Children because he believed they played a significant role in the development of cognitive intelligence. Based on his work, he proposed four stages of cognitive development viz: sensorimotor, preoperational, concrete operational and formal operational stages.

However, in the preoperational stage, Piaget described children between ages 2-7 as being in this stage of cognitive development where they are yet to comprehend mental logic. One characteristics of this stage is CONSERVATION, which is the ability to know that changing a substance's appearance doesn't change the properties of that substance. Piaget proposed that Children between the ages of 2-7 lacked this conservative characteristics.

He performed an experiment where he used two beakers with the same amount of liquid. He then emptied the contents of one of the previous beakers into a new beaker with different shape (longer). Piaget was able to notice that Children at the pre-operational stage were unable to understand that the contents of the two beakers (longer one and previous beaker) were still the same despite the beaker has been changed.

Hence, according to Piaget, a child has acquired the cognitive skill of conservation when he/she is able to understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal.

Hibernation is _______.

Answers

Answer:

PROCESS OF SLEEPING FOR MONTHS .

LIKE BEARS,BATS,ETC

Answer:

the condition or period of an animal or plant spending the Winter in a dormant state.

In prokaryotes that carry out aerobic respiration, the ________ serves the same purpose as the inner mitochondrial membrane and the ________ serves the same purpose as the mitochondrial matrix. In prokaryotes that carry out aerobic respiration, the ________ serves the same purpose as the inner mitochondrial membrane and the ________ serves the same purpose as the mitochondrial matrix. plasma membrane; cytoplasm cytoplasm; cell wall ribosomes; plasma membrane cytoplasm; nucleoid cytoplasm; plasma membrane

Answers

Answer:

In prokaryotes that carry out aerobic respiration, the plasma membrane serves the same purpose as the inner mitochondrial membrane and the cytoplasm serves the same purpose as the mitochondrial matrix.

I'm sorry! I only know those two. I hope this helps anyway!

The diagram summarizes the light-dependent reactions of photosynthesis. A diagram shows the light-dependent reactions of photosynthesis. x goes to the light dependent reaction. The light dependent reaction goes to chemical energy and oxygen. What is the input of the light-dependent reactions, labeled X? CO2, H2O, O2, and light CO2, H2O, and light CO2 and H2O H2O and light

Answers

Answer:

Although there is no diagram attached to this question but it can be answered based on the general knowledge of photosynthesis. The answer is:

H2O and light

Explanation:

Photosynthesis is a unique phenomenon that occurs in the Chloroplast of plant cells. It is the process by which plants and other autotrophs obtain their energy source (food) in the presence of sunlight. Photosynthetic process occurs in two distinct stages viz: light dependent reaction and light independent reactions.

The light dependent reaction, as the name implies, is dependent on light to occur. It occurs in the Thylakoid membrane of the Chloroplast, where a photon of light is captured by the Chlorophyll pigment and the energy is used to split molecule of water in a process called PHOTOLYSIS OF WATER. The transfer of electrons across the thylakoid membrane creates a proton pump, which is used to generate ATP and NADPH. NADPH and ATP are electron and energy carriers respectively which enters into the light independent stage in order to synthesize glucose (sugar).

In a nutshell, the inputs of the light dependent stage are LIGHT from the sun, and water (H2O), which provides the proton and electron when split.

Answer:

its D

Explanation:

Write TRUE or FALSE
(a)
A 'system' is the part of an organism that carries out a certain function.​

Answers

Answer:

TRUE

Explanation:

Which element is being cycled through Earth's system in the image shown
below?
Fossil fuels
Cellular
respiration
Photosynthesis
Animals
Plants
Industry and Home
Death and
decay
A. Oxygen
B. Nitrogen
c. Hydrogen
O D. Carbon

Answers

I took this quiz about 2 weeks ago but I forgot the answer. I think it was Carbon but you shouldn’t trust me till someone confirms it
carbon! hope this helps!!

What does food provide to organisms? homeostasis shelter energy air PLZ HELP ME PLZ PLZ PLZ

Answers

Answer:

Option C. is the correct choice.

Explanation:

Food provides "energy" to organisms.

Best Regards!

Answer:

C. Energy

Explanation:

a sample of an unknown liquid has a volume of 12.0L and a mass of 6g. what is its density? show your work explain how you determined this value brainly

Answers

Explanation:

12.0L =12000cm^3

[tex]density = \frac{mass}{volume} [/tex]

[tex] = \frac{6}{12000 } \\ = 0.0005 {gcm}^{3} [/tex]

What is cell answer it thank u good day​

Answers

Vas happenin!

A cell is The smallest structural unit of an organism that is capable of independent functioning
Hope this helps *smiles*

When a pathogen is growing and multiplying within or on a host (which may or may not result in overt symptoms) this is known as a(n) ______. Multiple choice question. infection latent infection infectious disease opportunistic infection

Answers

Answer:

Infection would be the answer for the blank

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If a train travels at a constant 18.0 m/s, how far would it move in one hour? In 1.00 minute? In 1.00 second? Find the missing probability. P(A)=7/20,P(AB)=191/400,P(AB)=49/400 ,P(B)=? A. 7/8 B. 1/4 C. 117/400 D. 19/40 DOES STONE DISPLACE MORE WATER THAN ITS WEIGHT What u learned about the states of matter? 8 x 2= a.4b.2c.4d.2 Can anyone help me please?? PLEASE HELP WITH THIS QUESTION what important connections can you make between civic responsibility and possible career paths? Which court would hear this case? Ed was pulled over for driving 20 mph over the speed limit on 1-795. The officer issued Ed a speeding ticket which he feels is unfair since he was racing his mother to the hospital. plz helpA. Circuit CourtB. Court of AppealsC. District CourtD. Court of Special Appeals Nordquist Company's net income last year was $44,000. The company did not sell or retire any property, plant, and equipment last year. Changes in selected balance sheet accounts for the year appear below:Increases(Decreases)Asset and Contra-Asset Accounts: Accounts receivable $17,500 Inventory $(4,400)Prepaid expenses $13,000 Accumulated depreciation $32,000 Liability Accounts: Accounts payable $17,000 Accrued liabilities $(8,900)Income taxes payable $3,500 Based solely on this information, the net cash provided by operating activities under the indirect method on the statement of cash flows would be:a) $78,600b) $113,700c) $61,500d) $26,500 Participants in the 1963 March on Washington hoped to Group of answer choices do battle with the police of Washington, D.C. convince Congress to pass civil rights legislation. get "Bull" Connor prosecuted for police brutality. prevent the reelection of President Kennedy. The tin can with water in its bottom is heated to boil water and the steam is allowed to escape for some time. The open mouth is sealed with an air-tight cap and cooled under tap water. 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If gas costs $3.67 per gallon how much does it cost to fill her tank? 1 L = .264 gallons Convert liters to gallons: Calculate the cost of gasoline: ..5. A child requires a 5 mL dose of medicine each day. How many days would a liter of this medicine last? Quantitative Problem 1: Assume today is December 31, 2017. Barrington Industries expects that its 2018 after-tax operating income [EBIT(1 T)] will be $450 million and its 2018 depreciation expense will be $65 million. Barrington's 2018 gross capital expenditures are expected to be $110 million and the change in its net operating working capital for 2017 will be $30 million. The firm's free cash flow is expected to grow at a constant rate of 4.5% annually. Assume that its free cash flow occurs at the end of each year. The firm's weighted average cost of capital is 9%; the market value of the company's debt is $3 billion; and the company has 180 million shares of common stock outstanding. The firm has no preferred stock on its balance sheet and has no plans to use it for future capital budgeting projects. Using the free cash flow valuation model, what should be the company's stock price today (December 31, 2017)? Do not round intermediate calculations. Round your answer to the nearest cent. $ per share Ayuda, tengo que formar 3 oraciones con las siguientes palabras, la, sobre, importante, el, un, informa, suceso, quien, es, noticia, periodstico, consigue, reportero, genero Which line in the following excerpt from Joseph Conrads Heart of Darkness indicate a flashback? He paused. "Mind," he began again, lifting one arm from the elbow, the palm of the hand outwards, so that, with his legs folded before him, he had the pose of a Buddha preaching in European clothes and without a lotus-flower"Mind, none of us would feel exactly like this. What saves us is efficiencythe devotion to efficiency. But these chaps were not much account, really. They were no colonists; their administration was merely a squeeze, and nothing more, I suspect. They were conquerors, and for that you want only brute forcenothing to boast of, when you have it, since your strength is just an accident arising from the weakness of others. They grabbed what they could get for the sake of what was to be got. It was just robbery with violence, aggravated murder on a great scale, and men going at it blindas is very proper for those who tackle a darkness. The conquest of the earth, which mostly means the taking it away from those who have a different complexion or slightly flatter noses than ourselves, is not a pretty thing when you look into it too much. What redeems it is the idea only. An idea at the back of it; not a sentimental pretense but an idea; and an unselfish belief in the ideasomething you can set up, and bow down before, and offer a sacrifice to. . . ." He broke off. Flames glided in the river, small green flames, red flames, white flames, pursuing, overtaking, joining, crossing each otherthen separating slowly or hastily. The traffic of the great city went on in the deepening night upon the sleepless river. We looked on, waiting patientlythere was nothing else to do till the end of the flood; but it was only after a long silence, when he said, in a hesitating voice, "I suppose you fellows remember I did once turn fresh-water sailor for a bit," that we knew we were fated, before the ebb began to run, to hear about one of Marlow's inconclusive experiences. In this diagram, bac~edf. if the area of bac= 6 in., what is the area of edf? PLZ HELP PLZ PLZ PLZ PLZ