Which animal adaptation happened before the others?

A. Reproduction on land

B. Lungs

C. Backbone and skull

D. Development of a coelom

Answer: D. development of a coelom ​

Answers

Answer 1

Answer:

D?

Explanation:


Related Questions

How are many unicelled organisms. In addition , anything less than a cell is not alive. What do these statements imply about cells?

Answers

Answer:

The correct answer is - cells are the basic unit of life.

Explanation:

As it is given and also known that there are many unicellular organisms exists and they do not require the multicellular body to live their life or survival. Multicellular organisms are made up of various cells joined together to form a complex organization.

Anything less than a cell can not live or survive and also do not called a living entity. So, from above we can say the basic unit of the life is cell.


Which is an example of an ecosystem change that resulted from human activity?

Answers

Answer:

Your welcome! :)

Explanation:

An example is:

Deforestation occurs when a forest or stand of trees is removed, converting the land to a nonforest use. This changes the ecosystem drastically and results in a dramatic loss of biodiversity.

♡♡♡

Answer:

chaparral shrublands turning to grass due to frequent fires

Explanation:

I just took the quiz and it's right

Some functions of cellular organelles are given below.
a)Protein synthesis
b)Cellular respiration
c)Detoxify certain compounds
The organelles that perform the above functions are given respectively in which option?
(a) Mitochondrium,
Ribosome, Plastid
(b) Ribosome,
Mitochondrium, Endoplasmic
Reticulum
O (c) Ribosome, Golgy body,
Endoplasmic reticulum
(d) Ribosome, Plastid,
Endoplasmic reticulum

Answers

B) ribosome, mitochondrium, endoplasmic reticulum

crossing-over can occur during meiosis I in:
a. prophase I.
b. metaphase I.
c. anaphase I.
d. telophase I.

Answers

Answer:

b. metaphase l.

I’m pretty sure it’s A) prophase I

12. Flowers whose reproductive structures consist only
of stamens would be able to produce
A) fruits with seeds
B) fruits without seeds
C) pollen
D) ovules

Answers

Answer:

Pollen reproductive structures consist only

of stamens would be able to produce

Explanation:

No C is the answer

Reproductive structures are structures that make up the reproductive organs of a particular organism. These structures could include either female or the male reproductive organs.

Flowers with reproductive structures that comprise of only stamen would produce only pollen (option c).

Stamens are reproductive organs found in plants and they are male reproductive organs. For fruits with seeds to be formed the male and female reproductive organs must come together to produce a fruit.

Flowers with only the stamen will produce only pollen which is a male gamete that needs to be joined to the female gamete, ovary produced from the female reproductive structure (pistil) in a plant to produce a fruit.

Learn more: https://brainly.com/question/23140508

HELPPPP, ASAPPP THEY ONLY GAVE ME A FEW MINUTES TO COMPLETE!!

Discuss the benefits and drawbacks of
using solar energy and wind energy.

Answers

Answer:

hmm I'd say something like "Solar and Wind energy systems are renewable sources and ultimately are healthier for the planet, the drawback is that other resources (i.e oil and coal) tend to be cheaper"

Answer:

Solar Energy:-

Benefits-

Solar power is completely cleanIt produces no air pollution, no water pollution, no greenhouse gas effects and carbon - free alsoNo harmful emissions are released when electricity is being produced by solar panels.It also reduces the need for finite resources.

Drawbacks-

Solar Energy Storage Is ExpensiveUses a Lot of SpaceIts Weather-Dependent, slthough solar energy can still be collected during cloudy and rainy days, the efficiency of the solar system drops.Initial cost of purchasing a solar system is fairly high.

Wind Energy:-

Benefits-

Wind is a domestic source of energyIt's a clean fuel sourceIt's sustainable and causes no harmful emissions. Wind energy is a green energy source and does not cause pollution.

Drawbacks-

Wind turbines are prone to noise disturbances.The wind is inconsistentWind turbines involve high upfront capital investment.Installation can take up a significant portion of land.

which of the following shapes is not a common shape of a prokaryote?
a. bacilli
b. cocci
c. cylinder
d. spirochetes

NO WRONG ANSWERS PLS

Answers

Answer:

c

Explanation:

Que sucedería con la especie humana si debido a una futura mutación genética sus células no pudieran realizar los procesos de mitosis y meiosis

Answers

Answer:

la vida no podría continuar sin los procesos de división celular  

Explanation:

La mitosis es el proceso de división celular mediante el cual se producen dos células idénticas a partir de una sola célula. Durante la mitosis la célula crece y duplica la cantidad de ADN, con lo cual exactamente el mismo contenido de información genética es trasmitido a las sucesivas células que el proceso de mitosis va a dar origen. Por otra parte, la meiosis es un proceso celular en el cual se producen dos divisiones nucleares y citoplasmáticas (meiosis I y meiosis II) las cuales son precedidas por una fase de replicación del ADN. En la especie humana, la mitosis da lugar a células diploides (2n) con dos set completos de cromosomas homólogos, mientras que la meiosis da lugar a cuatro células haploides (n) llamadas gametos (el gameto masculino es el espermatozoide y el gameto femenino es el óvulo) las cuales contienen la mitad del número cromosómico al de la célula de origen. En organismos eucariotas pluricelulares tales como la especie humana, la función de la mitosis es producir más células somáticas (soma: cuerpo) con idéntico material genético, mientras que la función de la meiosis es producir células aptas para el proceso de reproducción, es decir, células con la mitad del material genético que se fusionarán para generar una célula diploide o zigoto a partir del cual y mediante sucesivas mitosis se desarrollará un organismo adulto.

Select the correct answer from each drop-down menu.
The pancreas is an accessory organ whose function aids the chemical digestion of food.
If the pancreas fails to make
, it will inhibit the action of enzymes and affect chemical digestion. Also, might damage the small intestine walls.

Answers

Answer:

I dont know the first one but the last one is acidic chyme. Hydrochloride is what I put as the first and its wrong, acidic chyme is right as the second one.

Explanation:

Answer:

First one: Bicarbonate Ions

Second one: Acidic Chyme

Explanation:

...

Gizmos ( Building DNA )
Activity A :
Question : What is the structure of DNA
Build : follow the steps given in the gizmo to construct a molecule of dna

Answers

Answer:

Double Helical Spiral structure

Explanation:

DNA is a helical spiral structure in which two long strands of nucleotide form a double helix structure.

It looks like a structure of ladder in which the phosphate and sugar molecules from the side of the ladder and the base pairs form the rungs.

Cuanta poblacion tiene Yunga?

Answers

Tiene 1570 poblacion yunga

Answer:

1570

Explanation:

Which substance is considered a building block for all living things? A.hydrogen B.glucose C. carbon D.protein 

Answers

The answer is protein

Answer:

The answer is carbon. It is considered a building block for all living beings

Salad vegetables are cut and placed in plain water. Why?

Answers

Answer:

Not only does soaking produce rid it of harmful germs or chemicals, but it can also be used to revitalize produce for a better taste and longer life. If you purchase local, organic fruits and vegetables that contain no chemicals or harmful preservatives, you can use warm water to rinse your produce.

Explanation:

Fun facts:

Through osmosis, water naturally moves from areas of low salt concentrations to areas of high salt concentrations. ... Consequently, the water in a leaf of lettuce that is soaking in salt water will migrate out of the lettuce leaving a mushy leaf behind.

Complete the T-chart by categorizing each environmental factor as something that would most likely increase or decrease genetic variation. Some answers will fit in both columns depending on the situation.

Predator-prey relationships
Competition
Toxins
New habitat
Disasters
Increased food source
A 2-column table has columns with labels Increase variation and decrease variation.

Answers

Answer: 1. Decrease 2. Decrease 3. Both 4. Both 5. Decrease 6. Increase

Explanation: I got it right hopefully it helps

Answer:just did it

Explanation:

Item 5 What is the role of a generator in producing electricity? The generator stores electrical energy for later use in homes and businesses. The generator spins the turbine to create mechanical energy. The generator transforms the mechanical energy of the turbine into electrical energy. The generator reverses the turbine to create electrical energy.

Answers

Answer:

The generator transforms the mechanical energy of the turbine into electrical energy

Explanation:

Electricity generator is a device that is used in generating power supply which can be used in industries, homes and for commercial and private purposes.

It operates by converting mechanical energy into electrical energy for the use in an external circuit. mechanical energy can be obtained from steam turbines, internal combusting energy, gas and water turbines and it can be obtained through the rotating shaft.

The capacity of each generator determines the amount of energy it can supply to a given place.

ARTS :


true. or. false. ​

Answers

Answer:

true false true false true

Compare how the human body breathes in and out. Describe what happens to the ribcage, the diaphragm and chest volume. use key scientific words. Well detailed please.
I’ll give brainliest

Answers

Ok so I just gave this answer to someone here u go too

In a population:
A. Are organisms that live all over the world

B. Are autotrophs

C. All organisms are of different species

D. All organisms are the same species

Answers

Answer:

D. All organisms are the same species

Explanation:

The organisms of the same species in a particular area is called population.

4. The human population has experienced unchecked growth for the past 200 years. What does "unchecked" mean? A. Slow b. At a steady rate c. Unrestrained d. Dangerous

Answers

Answer:

B

Explanation:

The correct option would be B

The human population experiencing unchecked growth for the past 200 years does not mean that there were no restraining factors that limit the population. Factors such as death, competition for resources, diseases, etc., were still present.

Despite the limiting factors, the population has been growing. Hence, the correct word to replace 'unchecked growth' would be 'at a steady rate'.

Slow and dangerous really have nothing synonymous with unchecked growth.

The correct option is, therefore, B.

Students are studying the length of time that different battery brands can keep flashlights
operating. Which of these should remain constant in this investigation?
A. The length of time
B. The color of the flashlights
C. The type of flashlights
D. The brand of the batteries

Answers

The type of flashlights (c)

I NEED HELP ASAP A gradual increase in temperature of the Earth's atmosphere caused by gases and pollutants


A.Greenhouse gases

B.Fossil fuels

C.Global warming

D.Climate change

Answers

Global warming

The increase of greenhouse gases result into global warming :)

Which best describes a gene?
the short arm of a chromosome
tightly coiled strands of DNA
the center of a chromosome
a segment of chromosomal DNA

Answers

Answer:

A gene is a segment of a DNA strand.

Answer: a segment of chromosomal dna

Explanation:

Which of the following are positively charged?
1. The proton
2. The electron
3. The alom
4. The nucleus
A) 1 and 2
B) 2 and 3
C) 3 and 4
D) 1 and 4

Answers

Answer:

D

Explanation:

Proton: positive charge

Electron: negative charge

Neutron: neutral charge

There are protons and neutrons in the nucleus, so there will always be a positive charge in the nucleus

Census data show that the human population doubled from 2.65 billion in 1953 to 5.3 billion in 1990. If it continues to double at this rate, the human population could reach 10 billion by the year 2020. Which best explains how this rate of human growth can harm the environment on which humans depend?

Answers

The question is incomplete, the complete question is;

Census data show that the human population

doubled from 2.65 billion in 1953 to 5.3 billion

in 1990. If it continues to double at this rate,

the human population could reach 10 billion

by the year 2020. Which BEST explains how

this rate of human growth can harm the

environment on which humans depend?

A. by gradually making up more available energy

B. by using resources faster than they can be

replaced

C. by changing how matter cycles through an

ecosystem

D. by increasing the variety of ecosystems that are

Answer:

by using resources faster than they can be

replaced

Explanation:

As population of the world continues to grow, there is greater demands for resources which are obtained from the environment such as crude oil for energy, solid minerals for various applications, wood for furniture etc.

Demand for these materials increase exponentially as population increases thus they are extracted at a faster rate than nature can replace them. This will eventually harm the environment on which humans depend as population increases.

3. Ang
ay isang uri ng kuwentong bayan at panitikan
na nagsasalaysay ng mga pinagmulan ng mga bagay-bagay
sa daigdig
A. Horror
B. Alamat
C. Pantasya
D. Mga tula​

Answers

Answer:

B. Alamat

Hindi masyadong magaling ang aking Pilipino, ngunit sana makatulong ito :)

The answe me has to be B

Which material is the medium of ocean waves?
A. Sand
B. Water
O C. Air
O D. Rock
SUBMI

Answers

Answer:

Water

Explanation:

A medium is the substance through which a wave can propagate. Water is the medium of ocean waves.

As you increase the temperature, the rate of photosynthesis increases and then decreases.


True

False

Answers

Answer:

true

Explanation:

Because plants need sunlight to do photosynthesis.

the answer is true !

The light reactions can only occur in the absence of light.
A. True

B. False

Answers

Answer:

false

Explanation:

the light reactant needs light

What is the function of the stigma?
A. To catch pollen grains

B. To produce eggs

C. To attract insects

Answers

Explanation:

A. to catch pollen grains

is yr correct ans.

hope it helps

stay safe healthy and happy..

Answer:

A. To catch pollen grains

Explanation:

The function of the stigma is to catch the pollen grains.

A person who forwards on a sexual picture of another can get in as much trouble as a person sending a picture of themselves (sexting).


True
False

Answers

the answer to this is true

The statement about the s exual pictures is TRUE.

The person might get convicted for the crime and can severely punished if he post or share the pictures without consent.It comes under cyber crime.

What come under cybercrime?Child P ornography OR Child s exually abusive material (CSAM) Cyber Bullying. Cyber Stalking. Cyber Grooming. Online Job Fraud. Online S extortion. Phishing. Vishing

To know more about cyber crimes here

https://brainly.com/question/23973505

#SPJ3

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If 7x - 4y = 23 and x + y = 8, what is the value of x? The spongy is located in which part of the bone?(A) outside the head of the long bone(B) in the shaft of the long bone(C) outside the shaft of the long bone(D) inside the head of the long bone If the loading is 0.4, the coinsurance rate is 0.2, the number of units of medical care is 100, and the number of units of medical care is 1. What is the premium of this insurance? Ratio Question:Florence washed 3 cars, Caragh washed 4 and Anona washed 5. Anona earned 16 more than Florence. Work out how much each earnt. You sell one December futures contracts when the futures price is $1,010 per unit. Each contract is on 100 units and the initial margin per contract that you provide is $2,000. The maintenance margin per contract is $1,500. During the next day the futures price falls to $1,008 per unit. What is the balance of your margin account at the end of the day? a. $3,700b. $1,800c. $2,200d. $1,500 Consider the following equation. -2x + 6 =[-2/3] + 5 Which statement about the assassination of Martin Luther King is true?O A. He was killed by Black Panthers.O B. He was killed while marching in Chicago.O C. He was killed in a riot.O D. He was killed while trying to organize poor workers. Solve for y.3= y+7 divided by 3 Y= Can somone help me solve this Find the product of 6*12. A.362. B.62. C.56. D.418. Sound travels slowest through gases _____________________. Group of answer choices because the molecules of gas are close together because gases are air because the molecules of gas are far apart because gases have the lowest temperature two dice are rolled write the sample space and number of sample points also write events and number of sample points in the event according to the given condition sum of the digits of upper faces is a prime number , sum of the digits on the upper face is a multiple of 5 , sum of the digits on the upper face is 25 and digit on the upper face at the first die is less then then the digit on the second die Evaluate the expression below when y = 3. If needed, answer as a fraction or a decimal.y5y+2 Which element of a command economy is also used in a mixed economy PLEASE HELP! WILL MARK BRAINIEST!!I have a question regarding wording of some instructions. I dont want anyone to give me answers or anything, but I just need some clarification on the portion of the instructions below that is in ALL CAPS:On the next slide, using pictures, video and your own words, discuss fitness and nutrition while exploring the following three concepts: - INCLUDE INTERNAL AND EXTERNAL INFLUENCES OF OVERALL HEALTH- Demonstrate positive and negative effects of influences on health.- Demonstrate understanding of balance between the three aspects of the Health Triangle.I have been trying to figure it out for the last 1 hour and really need help. My teacher is off and this is due soon. I'll be sure to mark you brainliest if you give a good response!! No links please!Thanks!!!!! Which is an example of an ecosystem change that resulted from human activity? In the diagram, PN is perpendicular bisector of AB and is also the ange bisector of Two vertices of a right triangle have the coordinates (-2, 5) and (9, 5). What is the length of the side formed by these vertices? ______ language is written using 0's and 1's The location NASA in the city of Houston has impacted the state by A- Threatening the state's economy and providing a large number of jobs. B- Providing a large number of jobs, but threatening the environment.C- Adding to the state's economy and providing a large number of jobs. D- Providing some new jobs, but little to the economy of the state. pls help