evolution of octopus

Answers

Answer 1
Just when we thought octopuses couldn't be any weirder, it turns out that they and their cephalopod brethren evolve differently from nearly every other organism on the planet. ... When an organism changes in some fundamental way, it typically starts with a genetic mutation - a change to the DNA.


Octopuses are known to be highly intelligent for invertebrates and display an ability to solve complex problems. Until now the origins of cephalopods, which evolved from ancient marine molluscs with shells, have been shrouded in mystery.

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WILL SOMEBODY ANSWER MY QUESTION?!?!? I WILL GIVE BRAINLIEST! PLEASE ANSWER! I WILL EVEN FRIEND YOU ON HERE BUT PLEASE ANSWER OR COMMENT THE ANSWER.


Explain the difference between the effects of balanced and unbalanced forces on an object. To receive full credit you must mention net force and whether the motion will change or not.

Answers

Answer:

Balanced Forces acting on an object will not change the object's motion. Unbalanced Forces acting on an object will change the change the object's motion.The net force on an object is the combined effect (the sum) of all the pushing and pulling forces actually acting on the object. If the forces pushing or pulling on an object are not balanced (a net force acts) then the object will accelerate in the direction of the net force

Explanation:

Hope this helps :)) Plz mark Brainliest :))

Answer:

this is so you can choose that person as the brainiest also please like this and rate  

Explanation:

PLEASE ANSWER QUICK

Which statement best explains the difference in the mouse populations on Island A and Island B at the end of the 20 years?



Question 2 options:

More brown mice were in the half of the original population that was sent to Island B than in the group sent to Island A.


Conditions on Island B favored the individuals with brown fur, while both fur colors were evenly favored on Island A.


On Island A, the allele for gray fur was dominant, while on Island B, the allele for brown fur was dominant.


The recapturing of mice on Island A and Island B was done differently.

Answers

Answer:

Conditions on Island B favored the individuals with brown fur, while both fur colors were evenly favored on Island A.

Explanation:

Answer:

A i think-

Explanation:

Does the target cell always detect a signaling molecule that binds to a receptor protein on the cell surface? Explain.

Answers

Look it up because me myself and I don’t know my dude

Which of the following statements is NOT correct?
O Heat energy is needed to melt ice into water.
O The most important source of water in the atmosphere is conduction from the oceans.
O Water reaches the land surface as rain or snow and is transported to the ocean by streams, rivers, and lakes.
O Liquid water from the Earth's surface is evaporated into a gaseous form and enters the atmosphere as water vapor.

Answers

Answer:

it's O n2. So, The most important source of water in the atmosphere is conduction...

Explanation:

Hope that helps! (Btw I did this test and got it correct)

The statement "The most important source of water in the atmosphere is conduction from the oceans" is not correct.

The most important source of water in the atmosphere is evaporation.

What is  evaporation?

Evaporation is a process through which a liquid transforms into a gas. It's a type of vaporization that occurs specifically at the surface of a liquid. Whenever a liquid gets heated the molecules, near its surface gain energy. Become more active. These energetic molecules tend to collide with each other resulting in some of them escaping from the liquids surface and entering the gas phase.

In terms of sourcing water for the atmosphere, evaporation of water from the Earths surface plays a role. Although water vapor does come from the oceans through conduction it's not the source that we rely on.

Learn about  evaporation here https://brainly.com/question/2013258

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I need help with this it’s due at 12:00 PM

Answers

The satellite that orbit earth without gravity would collide into earth since there is no gravity to hold it up there in space.

What. Is three base pair group called on the mRNA strand

Answers

Answer:

Codon

Explanation:

Each base pair group in mRNA makes a codon. Each codon specifies an amino acid. (A TRIPLET CODE)

Scientists are now studying human DNA in labs all over the world. Which are current goals for the scientists at these labs? Select three answers that apply. A. completing a full sequence of human DNA (the Human Genome Project) B. identifying the regions of human DNA that are transcribed into RNA C. identifying the regions of human DNA that bind to proteins D. analyzing the regions of human DNA that vary among individuals E. describing the molecular structure of human DNA

Answers

Answer:

B. identifying the regions of human DNA that are transcribed into RNA

C. identifying the regions of human DNA that bind to proteins

D. analyzing the regions of human DNA that vary among individuals

Explanation:

The double helix structure of the deoxyribonucleic acid (DNA) molecule was characterized and published in April 1953 by Francis Crick and James Watson. Moreover, the Human Genome Project was a project aimed at completing mapping and sequencing of the human genome. This project was completed and published in April 2003. Nowadays, scientists are focused on identifying which genes are expressed (i.e., transcribed into RNA) in specific cell types/tissues. For this purpose, it is imperative 1-to identify the promoter and enhancer regions that bind to specific proteins (transcription factors) in order to activate gene expression, and 2-to understand how genetic variation is related to gene expression patterns in specific cell types and/or in response to specific environmental stimuli.

PLS HELP!!! best detailed answer gets brainliest!

how are Metamorphic rocks with fine grains made and how did the composition of the Earth’s atmosphere cause changes to form the rock over time.

Answers

Answer:

A rock is a naturally formed, non-living Earth material. Rocks are made of minerals. ... A rock may be made of only one type of mineral. More often rocks are made of a mixture of different minerals.

Metamorphic rocks (changed rocks) are made when existing rocks are subjected to high temperatures and high pressures for long periods of time. Metamorphism (meta = change, morph = form) happens when molten rock intrudes other rocks and bakes the contact zone where the molten rock touches the preexisting rock. Metamorphism also happens when rocks are buried deeply during the process of mountain building. The kind of metamorphic rock made depends on the kind of original rock; for example, sandstone is turned to quartzite, shale is turned to slate, and limestone is turned to marble.

Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.

What happens as a result of homeostasis?

Answers

Answer:

Many diseases are a result of homeostatic imbalance, an inability of the body to restore a functional, stable internal environment. ... Homeostasis is the ability of a system to regulate its internal environment through maintaining a stable, relatively constant set of properties such as temperature and pH

Explanation: hope this helps

What is the correct order of organization of genetic material

Answers

Answer:Genome, chromosome, nucleotide, gene.

Explanation:

Genome, Chromosome, Gene, Nucleotide. Hint: Genetic material refers to the material found in the nucleus, cytoplasm and mitochondria which play an important role in determining the structure and also the nature of cell substances.

While studying for a test, Tyrone created some note cards. What would be an appropriate title for the note
card above?
A product of photosynthesis.

A reactant of photosynthesis

Parts of a plant cell.

Organelles that capture sunlight.

Answers

A because that’s the final products of photosynthesis

Why is it important the blood is constantly moving?

Answers

it’s important so that the body can get the oxygenated blood to the organs so they can work properly and in a healthy way
and to remove the co2

Answer:

Moving things in and out of the cell is an important role of the plasma membrane. It controls everything that enters and leaves the cell. There are two basic ways that substances can cross the plasma membrane: passive transport, which requires no energy; and active transport, which requires energy.

Explanation:

Please help. Thank you

Answers

Food is usually made by plants

What is a gene? What is a gene? What is a gene?

Answers

Answer:

Your answer should be D. A section of DNA that codes for a specific trait.

Answer: D

Explanation: Just took the test and got it correct.

Which of the following best describes the difference between the functions of carbohydrates and nucleic acids?
A)Carbohydrates store energy efficiently, while nucleic acids store and pass on a cell's genetic
information
B)Carbohydrates trigger a variety of metabolic processes in cells, while nucleic acids decode and
express genetic information as proteins.
C)Carbohydrates reinforce the structure of cells, while nucleic acids break down cell membranes.
D)Carbohydrates store energy in fats, while nucleic acids donate energy to various biochemical
reactions.

Answers

Answer:

In my knowledge

Its option A

How can I identify an organelle? Please help I have till 11:59 to answer this question.

Answers

Answer:

Shape and size?

Explanation:

help me plzzz asap...
will give brainliest if right

Answers

Answer:

first option for the first question and second option for the second question.

Explanation:

What is the expected genotypic ratio among children born to a mother have the genotype I^Ai and a father with a phenotype AB?

Answers

Answer:

AB, AB, AO BO

Explanation:

light pollution from a city can make the night sky appear as if ________

a. stars seem closer to us
b. stars seem farther away
c. there are more stars
d. there are no stars

( i dont know which ones science where it tells you to choose )

Answers

i believe it’s d and if not i’m very sorry

Can someone please help with this and explain! I will mark brainliest!!!

Answers

Answer:

D       Flow of protons across an electrochemical gradient

Explanation:

The chloroplast adenosine triphosphate (ATP) synthase uses the electrochemical proton gradient generated by photosynthesis to produce ATP, the energy currency of all cells. Protons conducted through the membrane-embedded Fo motor drive ATP synthesis in the F1 head by rotary catalysis.

In chloroplasts, photosynthetic electron transport generates a proton gradient across the thylakoid membrane which then drives ATP synthesis via ATP synthase.

The light-induced electron transfer in photosynthesis drives protons into the thylakoid lumen. The excess protons flow out of the lumen through ATP synthase to generate ATP in the stroma.

Majority of ATP is produced by OXIDATION PHOSPHORYLATION. The generation of ATP by oxidation phosphorylation differs from the way ATP is produced during glycolysis.

Electrons are passed from one member of the transport chain to another in a series of redox reactions. Energy released in these reactions is captured as a proton gradient, which is then used to make ATP in a process called chemiosmosis.

D.Flow of protons across an electrochemical gradient

is the correct answer


All cells in your body need a constant supply of energy to stay alive.
They obtain the energy they need through a process called cellular
respiration. How does cellular respiration release energy for the cells to
use?
Cells take in carbon dioxide and convert it into oxygen and energy.
Cells take in glucose and oxygen and convert them into carbon dioxide, water, and
energy
Cells take in oxygen and convert it into glucose and energy.
Cells take in glucose and water and convert them into carbon dioxide, oxygen, and
energy

Answers

Answer:

Through the process of cellular respiration

Explanation:

the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP

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:

What pigment absorbs sunlight for photosynthesis?

A. chloroplast
B. thylakoid
C. grana
D. chlorophyll

Answers

D . Chlorophyll is the answer

5. Which is an example of an epidemic?
a. Dengue fever in a small African town
b. Swine flu cases reported in multiple countries
c. Smallpox outbreak on several continents
D. Worldwide deaths from tuberculosis

Answers

Answer:

A: Dengue fever in a small African town

Explanation:

which is most likely a covalent compound

a.) NaCl
b.) KCl
c.) CuF2
d.) CF4

Answers

Answer:

CF4

hope it help u

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Fungi differ from plants in that they do not reproduce by seeds and lack ...
A) chitin
B) hyphae
C) cell walls
D) chlorophyll

Answers

Answer:

C) Cell walls

Explanation:

fungi differ from plants

how does insulin travel around the body?

Answers

Answer:

In nerve cells

Explanation:

It flows in the blood stream

what is a example of a formation at a divergent boundary​

Answers

Answer: C - Ridge

Hope this helps :)

what do you call that shaking of the ground?​

Answers

Answer:

Earthquake

Explanation:

occurred when

stressed in the earth

crust

When a cell has energy available, how can it store small amounts of that energy?

Answers

Answer:

When a cell has energy available, it can store small amounts of it by adding phosphate groups to ADP, producing ATP. ADP is like a rechargeable battery that powers the machinery of the cell. One way cells use the energy provided by ATP is to carry out active transport.

Explanation:

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Other Questions
Magda is a nursing assistant who is trying to follow theproper procedure for gloves. These are the steps sheposted-Follow the procedure for hand washing.--Put on the gloves,-Perform the procedure.-Remove one glove by grasping the outer surface justbelow the cuff.-Pull the glove off so that it is inside out.-Hold the removed glove in the ungloved hand,-Place two fingers of the ungloved hand under the cuffof the other glove and pull it down so the first gloveinside the second glove.-Dispose of the gloves without contaminating hands.--Follow the procedure for hand washingWhich best describes the errors Magda made?Magda forgot to check for tears before putting on thegloves, and she should have used only one finger ofthe ungloved hand to remove the gloves,Magda forgot to check for tears before putting on thegloves, and she should have held the removed glovein her gloved handMagda forgot to check for tears before performingthe procedure, and she should have used only onefinger of the ungloved hand to remove the gloves.Magda forgot to check for tears before performingthe procedure, and she should have held theremoved glove in her gloved hand. The pies shown below remain after Mrs. Green's dinner party. If Mrs. Green wraps up leftover pie so that each guest can have 1/3 of a pie, how many guests are at the dinner party?A. 3B. 4C. 5D. 6----------------------------------------------------------------------------------------------------------------------------Which number line best models the expression 3 1/3 ? A,B,C OR D----------------------------------------------------------------------------------------------------------------------------There are 16 pies on a picnic table.*Each pie is cut into pieces*Each piece is 1/8 of a pieHow many pieces of pie are on the picnic table? a. 2 b. 88 c. 24 d. 128 What are the 12 common abdominalconditions? QUESTION 1Please match the following!AcyclovirA. depressionB. Cold sores4 Robaxin4 metforminC. antidiabetic4 nortriptylineD.muscle relaxantClick Save and Submit to save and submit. Click Save All Answers to save all answers.23,351tv5MacBook Air can someone help me with my korean homework? What did George Washington do to keep his small army together during the early years of the American Revolution?Stay on the offensive and keep attacking no matter what.Imitate the European style of warfare.Retreat when necessary to save the army.Ask Spain for mercenaries to fight the British on the frontier. Pls help I need help pls *(9) Complete the calculation so that each shows the correct sum.0.5 1 3 7+1Your answer bir ift ve bir tek rakam kullanarak yazlabilecek en kk 2 basamakl doal say kat A 2-kg mass placed 30-cm to the left of the fulcrum is balanced by a 2-kg mass placed ______ cm to the right of the fulcrum. AAH HELP PLEASSSSSSSSSSSSSE (i'll try to mark brainiest for the first person that helps me)Which of the following expressions represents the value, in dollars, of a certain number of nickels, n, and dimes, d? 0.15nd 0.15n + d 0.10n + 0.05d 0.05n + 0.10d An example of a single displacement reaction is during one year, a family made 4 trips to the water park. the distance from their house to the water park is 39 miles. how many miles did the family drive in 4 trips (BLANK)is Britain's law-making body equivalent to the United States Congress It is made up of an upper and lower house There are 3 main types of Soil Textures: Clay, Sand, & A Fine B. Loam O C. Coarse 0 D. Silt Suppose f(x) =6x second power-4, what is f(-1)? [tex]\sqrt{25}[/tex]Bad answers will be reported Find the probability of 5 successes in 9 trials of abinomial experiment in which the probability ofsuccess in any one trial is 37%.Round to the nearest tenth of a percent. Find mGeometry help pls a quadrilateral has vertice at (1,1) (4,2)(0,4) and (5,5) what is the perimeter of the quaddrilateral