What do all of these samples have in common?

Answers

Answer 1

Answer:

They are all fossils

Explanation:

Answer 2

They were all once living things. However, due to evolution, these have all adapted in many ways, or become extinct.

I hope this helps.

Related Questions

What does this mean about the relationship between an
allele’s frequency and its likelihood of being dominant?

Answers

Microevolution is a change in the frequency of gene variants, alleles, in a population, typically occurring over a relatively short time period.
Population genetics is the field of biology that studies allele frequencies in populations and how they change over time if this doesn’t (I hope this is right if It don’t know what will)

Which chemical is a compound ?
A. Hydrogen
B. Helium
C. Nitrogen
D. Hydrochloric acid

Answers

Answer:

It is D

Explanation:

All A,B, and C are a element so D.

The answer is D, Hydrochloric acid.

-Hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements.
- Helium is a chemical element with symbol He and atomic number 2.
-Nitrogen is an element, not a compound. It is found in nature as nitrogen gas, also called dinitrogen, with the chemical formula N2 , and makes up 78% of the atmosphere.

Can anyone help me please I need this in a few mins
When measuring the brightness of a star, what is a limitation of using apparent magnitude rather than absolute brightness?

Apparent magnitude does not use the star's color or temperature.

Apparent magnitude is only theoretical, thus its value cannot be directly measured with equipment.

Apparent magnitude does not take into account the fact that not all stars are the same distance from Earth.

Apparent magnitude is only on a comparative scale that determines how bright a star looks from a theoretical distance of 32 light-years from Earth.

Answers

Answer:

D. Apparent magnitude is only on a comparative scale that determines how bright a star looks from a theoretical distance of 32 light-years from Earth.

Explanation:

I majored in Biology

Answer:

Yea what the first guy said.

Explanation:

When looking through a miscrcope you see a single celled organism. You don't see any nucleus on this organism, this organism is most likely
an Eukaryote.
True or false?

Answers

Answer:

True

Explanation:

identify 3 conditions that can develop from having or missing chromosomes

Answers

Answer:

1. Down Syndrome - Caused by an extra copy of chromosome 21

2. Klinefelter Syndrome - Boys with extra x chromosome(s)

3. Turner Syndrome - Girls lacking a second x chromosome

which type of reproduction produces offspring with more genetic variation?

Answers

Answer: Sexual reproduction!

Explanation: hope i helped! <3

Answer:

Sexual repduction provides genetic diversity

EXPLANATION:

because the sperm and egg that are produced contain different combination of than the parant organisation.

-END-
SENIOR THREE BIOLOGY CHRISTMAS DOSAGE
1.(a) (i) Explain why small organisms such as this amoeba can obtain sufficient oxygen for respiration without a
specialized gas-exchange system.?
fi)explain why the method of gas exchange in (a)i above is only possible in very small organisms.?

Answers

Answer:

In single celled organisms surface area to volume ratio is optimum for diffusion/exchange of substances between the cell and its exterior and this rate of exchange suffices the requirement of a unicellular organism. However, in multicellular organisms the surface area to volume ratio is low, the exchange that takes place with the exterior or the environment occurs only through the body surface with the help of a specific structure/organ, example (Skin),However, this exchange does not compensate for millions of cells in a multicellular organism, which have distinct requirements based on their function

Explanation:

i) Amoeba gets oxygen gas dissolved in surrounding water through its plasma membrane by the process of diffusion.

ii)The oxygen gas diffused inside the body is used up by amoeba. carbon dioxide gas is also liberated in the surrounding water through the same process of diffusion.

Please help me I really need help I am having a hard time with this question.

Answers

Answer:

I would prefer to have city water because you don't have to worry about it getting polluted unlike well water. The city water is maintained by the city while with the well water, you maintain it yourself. Even though it can be pricey, most people live in the city anyway, so there is easier access to it.

Explanation:

Answer:

Well Water

Explanation:

I would prefer well water, because city water had a lot of chemicals, and city water filters out minerals that are good for the body. Also, well water tastes ten times fresher than city water. Also, well water is easy to obtain if you already have a well, all you have to do is wither pump it up, or use a basket to scoop some out.

Identify three ways in which water is stored.

Answers

Really hope this helps have a great day now, okay?

PLEASE HELP ASAP WILL RANK BRAINLIEST!!!!

Answers

Answer:

Explanation:

The rise in the lines mean that the enzymes still work properly at different rates, but the peaks represent the temperatures and ph they work best at

What is the effect of photosynthesis in the carbon cycle?
Select one:

It adds carbons to the atmosphere in the form of carbon dioxide.

It removes carbon from the atmosphere and stores it as water.

It removes carbon from the atmosphere and stores it as glucose.

It adds carbon to the atmosphere in the form of glucose.

URGENT!

Answers

Answer:

option C is correct answer of this question

Why is DNA locked in the nucleus of the cell ?

Answers

Answer:

Inside the nucleus lies the blueprint that dictates everything a cell will do and all of the products it will make. This information is stored within DNA. The nucleus sends “commands” to the cell via molecular messengers that translate the information from DNA.

Explanation:

HELP PLEASE WILL GIVE POINTS FOR VOLCANOS DRAG AND DROP USE ATTACHMENT PLEASE

Answers

Answer:fissure (g) evacuate (b) magma (c) lava (h)

Explanation:

5:i, 6:b, 7:h, 8:c, 9:j, 10:a, 11:d, 12:g, 13:e, 14:f

please I need help !

Answers

the answer is A i thibk

Answer:

I think D.) More cobs on plants

Explanation:

If it ain D then it's C

Which statement below best describes the role of DNA?
A. It serves as the memory molecule in brain cells
B. It's the main supplier of energy for cells
C. It is used to store energy in the body
D. It carries the information for building proteins

Answers

Answer:

D , option is correct answer hope it helps

Explanation:

d is the correct answer, hope this helps you

An organism has a haploid number of 36. What is the organism's diploid
number

Answers

Answer:

Image result for What is the organism's diploid number

Diploid is a cell or organism that has paired chromosomes, one from each parent. In humans, cells other than human sex cells, are diploid and have 23 pairs of chromosomes. so it 23

Explanation:i look it up

In What phase of meiosis does Chromosomal reduction occur?

Answers

anaphase. in anaphase centromers break down and homologous chromosomes separate

Which organisms are affected most by biological magnification?

Answers

Answer:

This is biomagnification, and it means that higher-level predators-fish, birds, and marine mammals-build up greater and more dangerous amounts of toxic materials than animals lower on the food chain. In this activity you will explore the biomaginification of toxic chemical, mercury, through a simple marine food chain.

Explanation:

Name two types of pathways that help a body maintain homeostasis, and an example of each.

Answers

Answer:

Explanation:

The cardiovascular and lymphatic systems transport fluids throughout the body and help sense both solute and water levels and regulate pressure. If the water level gets too high, the urinary system produces more dilute urine (urine with a higher water content) to help eliminate the excess water.

Answer:

The receptor and afferent pathway are pathways that help the body stay n homeostasis. An example of the receptor is like temperatures in your skin. An example of Afferent pathways are sensory neutrons.

Explanation:

Negative feedback:If oxygen levels are low,then respiration should
A. Increase
B. Decrease

Answers

Answer:

increase..................

help help pls will mark brainliest if i can

Answers

brain-nucleus

skin- cell membrane

stomach- mitochondria

blood- cytoplasm

How is it that all cells have the same DNA, but there can be many different types of cells?

Answers

Answer:

each cell deploys its genome and play different role

Explanation:

Each of the following can kill pathogens in the body, except:
A Vaccines
B Antibodies
C Leukocytes
D Antibiotics

Answers

Answer:

A. Vaccines

Explanation:

These are meant to prepare the body for the possibility of infection by building up immunity.

Have a great day!

PLEASE DO NOT COPY OFF ANY WEBSITES ANSWER IN YOUR OWN WORDS
Why have organisms evolved to have vestigial body parts?

Answers

Answer:

Structures that have lost their use through evolution are called vestigial structures. They provide evidence for evolution because they suggest that an organism changed from using the structure to not using the structure, or using it for a different purpose..

Hope it will help :)

Explanation:

Explain what you would have to do to the date on your watch if you were tocross over the International Date Line from east to west.
a. Change it to the next day
b. Move it back 1 day
c. Change it to the next year
d. Move it back 1 year

Answers

Answer:

(b)

Explanation:

PLEASE HELP
How are isobars used by meteorologists?

Answers

Answer:

Isobars are lines of constant or equal pressure on a weather map. They can be used to find areas of low or high pressure over a broad area (like the U.S.), and they can tell us how intense the system may be.

Explanation:

Which choice describes a strategy used to help restore cod populations?

limit the size of fishing fleets and catches

restrict fishing to trawling nets

allow fishermen to harvest from protected areas when necessary

harvest only very young fish

Answers

Answer: Limit the size of fishing fleets and catch size.

Explanation: Cod are nearly extinct therefore we either need to stop catching them or limit the amount you catch

The choice describes a strategy used to help restore cod populations is limiting the size of fishing fleets and catches. The correct option is A.

What are cod populations?

Atlantic cod, a fish that was essential to New England's economy, is being fished at historically low levels, and New England cod appears to be recovering from overfishing after many years.

Many people are concerned about eating fish because the IUCN has recently classified species including cod, haddock, and grouper as endangered. The fish that are linked to high bycatch rates are another worry for divers. Animals like dolphins and turtles are accidentally killed in the nets at this location.

Therefore, the correct option is A. limit the size of fishing fleets and catches.

To learn more about cod populations, visit here:

https://brainly.com/question/17210348

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feel the heat activity a molecular view

Answers

what exactly is your question?

What is the relationship between changing co2 concentration and temperature?

Answers

Answer:

When the carbon dioxide concentration goes up, temperature goes up. When the carbon dioxide concentration goes down, temperature goes down.

Explanation:

Pepsin is an enzyme produced in the stomach. Pepsin has an optimum pH that is very acidic, between a pH of 1.0 and 2.0. In an
experiment involving the enzyme pepsin, the pH is raised from 2 to 11. What will be the MOST LIKELY effect of this on the reaction?

Answers

Explanation:

the pepsin enzyme will not be able to work in a basic medium when ph raised from 2 to 11 it's efficiency will be affected and will not be in a condition of digesting protein .

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

When the pH is raised from 2 to 11 the most likely effect on the reaction is ;

The rate of reaction will decrease/delayed

Given that Pepsin enzyme has an optimum pH of 1.0 to 2.0, it will perform efficiently as a catalyst in an experiment whose pH levels fall within the range of the optimum pH of Pepsin.

Pepsin enzyme accelerates the digestion of proteins therefore when the pH levels are raised above 2.0 the efficiency of Pepsin enzyme will be negatively affected and the digestion of protein will require a higher activation energy.

Hence we can conclude that When the pH is raised from 2 to 11 the most likely effect on the reaction is The rate of reaction will decrease/delayed.

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Other Questions

i dont get the question combine like terms to make a simple Hi, equivalent expression: 14-3+8x+7x Can someone please help with this and explain! I will mark brainliest!!! Are these two lines perpendicular?Line 1: y-1=3(x+7)Line 2: y-19=-1/2(x+1) The work of which scientist was most essential to the use of radioactiveisotopes in medicine?A. Antoine-Laurent LavoisierB. Robert BoyleC. Marie CurieD. John Dalton Where did this flowering plant used to live? A) Swamps B) Mountains C) Forest If You Have Time-----Can you tell me what the Ethos, Pathos, and Logos is:Year after year, study after study has come to the same depressing conclusion: Women are paid less than men in most every occupation, from accounting to teaching to sales to nursing. In the 55 years since the federal Equal Pay Act was passed, the gap has shrunk a bit, but its still far too wide. In 1963, working women were paid, on average, 59 cents for every dollar paid to a man. Its now about 80 cents on the dollar, and substantially less for women of color. The gap exists even in fields in which women vastly outnumber men, like secretarial work and grade school teaching.Its no great mystery how and why this gap came to exist, but it is unfair and dispiriting nonetheless. Well into the technologically enlightened 21st century, some prehistoric attitudes about the value of womens work persist and are reflected in their collective pay. Its wrong, but deeply held societal beliefs are hard to shake and structural inequities are difficult to rectify. Thats why we are heartened by the disruptive promise of a recent decision by the U.S. 9th Circuit Court of Appeals that bars employers from considering a new workers prior salary when deciding what to pay him or her.Well into the technologically enlightened 21st century, some prehistoric attitudes about the value of womens work persist and are reflected in their pay.The ruling came in the case of a California woman who sued the Fresno County Office of Education when she found out her salary was $13,000 less than that of a man with less experience and education hired for the same job. Her employers argued that the disparity was not discriminatory because her lower salary was based on the fact that she had earned less in her last job, not on her gender. The court disagreed, adding (in an opinion written by Judge Stephen Reinhardt, who died in late March) that to allow employers to capitalize on the persistence of the wage gap and perpetuate that gap ad infinitum would be contrary to the text and history of the Equal Pay Act, and would vitiate the very purpose for which the Act stands.Its a broad interpretation, to be sure. Even some of the concurring justices worried that Reinhardts absolute ban on considering prior salary was too broad, though they agreed with his larger point. But theres certainly something to his logic. Discrimination is baked deeply into our system, and because past pay often is determinative of future pay, women underpaid in the past often continue to be paid less for the rest of their careers. Interrupt this pattern, and you have a better chance of stopping it before another century passes.The ruling applies only to the nine states under the appeals courts jurisdiction, but it likely will have a ripple effect across the nation, where concerns about the wage gap already have spurred a handful of states and cities California among them to adopt laws banning employers from asking about pay history. More states have considered similar proposals.Businesses that employ people have been understandably wary of adding another subject to the list of topics that are verboten to ask about in the application process. This includes asking job applicants their race, religion or gender identity, or other personal information such as their sex or whether they are pregnant, unless is it relevant to the job they are seeking. The California Chamber of Commerce and other business groups opposed Californias law, AB 168, which went into effect in January, on the grounds that employers often seek past wage history for legitimate, nondiscriminatory purposes. For one thing, the chamber argued, employers dont always know what the going market salary is for a particular job; for another, past wage history can help a company determine whether the potential employees salary expectations far exceed what it can offer.But the benefits of the law outweigh those concerns. Besides, industry trade groups regularly produce salary surveys for employers in their fields. And the California law still allows employers to ask an applicant about their salary expectations what they hope or expect to earn in the job for which theyre applying.Pay inequity doesnt only harm women. It also harms people of color. And its a matter of simple fairness too. Two people with the same amount of job experience and the same skills who do the same job equally well should be paid roughly the same amount, regardless of what they used to earn or what their race or gender is.Everyone can be hurt by a system that bases compensation not on skill level, experience or industry standards but on what they were paid at their last job. Plz help due tomorrow Jakavion is going to cook brownies in a rectangular pan. The pan measures 11 in. long by 8 in. wide by3 in tall. What is the surface area of the pan? The Boy in the Striped Pajamas Chapters 4-7 ASAP PleaseeeWhat did Bruno and Gretel see out Bruno's window? 10 points aA green meadow bThe ocean cMany children dA wheat field The probability of picked a blue morble out of a bag of 50 marbles is 3/25. How Many marbles in the bag are not blue? hagamos una discusin sera among us o Free fire ? There diagrams imply thats A TISSUEs are always rectangular B tissues are made up of cells C Tissues all look the same D tissues have the same Function Which ordered pair is the solution of the systemgraphed below? Plz answer will give brainliest if correct For a reading contest, a teacher awards 11 gold stars for every 22 book read. You are implementing a wireless network in a dentist's office. The dentist's practice is small, so you choose to use an inexpensive consumer-grade access point. While reading the documentation, you notice that the access point supports Wi-Fi Protected Setup (WPS) using a PIN. You are concerned about the security implications of this functionality. What should you do to reduce risk WILL GIVE BRAINLIEST. hello, if u can then please help me Why did the Greeks establish colonies outside of mainland Greece?