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.

Related Questions


1. What is biodiversity?
a) The animals that live only in rain forests.
b) The rich variety of live organisms in every
ecosystem on Earth.
c) The animals and plants species that live
only in your backyard.

2. Why do we need biodiversity?
a) it provides us with the food we need to eat
b)it provides us with virtually all the things we need to stay alive
c)so we have plenty of trees to use for fuels and materials

3.which of the following places has the highest biodiversity?
a)madagascar &indian ocean islands
b)tropical andes
c)caribbean islands

4. how many biodiversity ‘hotspots’ are there in the world?
a)12
b)25
c)34

5. in these ‘hotspots’ how much of the worlds species are found there?
a)10%
b)25%
c)50%


6. what does ‘endemic’ mean?
a) when a lot of people fall ill
b) when something is only found in one place
c) when a disease spreads throughout the world

7. why is biodiversity under threat?
a) habitat destruction
b)introduction of exotic species
c) both of the above and more


8. what can you do to help save biodiversity?
a) reduce, reuse, recycle
b) plant trees, clean local rivers and parks and protect habitats
c) all of the above

Answers

Answer:

1.B

2.B

3.A

4.A

5.C

6.C

7.C

8.C

1.B 2.B 3.A 4.A 5.C 6.C 7.C 8.C

What are constellations?

Answers

Explanation:

okay okay gracias por tus puntos

Answer:

picture made by stars

Explanation:

A visible group of stars forming an outline and/or pattern

Please help me ASAP!!!

Answers

Answer:

The kinetic theory of matter says that the more the particles are moving, the more kinetic energy they have.

Explanation:

Kinetic energy is energy which a body possesses by virtue of being in motion.

What the person above me said<3

Which is an example of carbon accumulating in the geosphere?

Select one:


Formation of fossil fuels from remains of dead organisms.


Breaking down the body of a dead organism and producing carbon dioxide gas.


Formation of glucose in plants through photosynthesis.


Breaking down glucose in cells through cellular respiration.


HELP NEEDED!! :(

Answers

Answer:

your answer is a

Explanation:

Carbon enters the geosphere through the biosphere when dead organic matter (such as peat or marine algae) becomes incorporated into fossil fuels like coal and organic-matter-rich oil and gas source rocks, and when shells of calcium carbonate become limestone through the process of sedimentation briefly described above. formation of fossil fuels form remains of dead organisms .

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

A cross between 2 phenotypically 'wild-type' individuals produces 9 wild type offspring for every 3 of one mutant phenotype and 4 of another mutant phenotype. What is the likeliest explanation for this?

Answers

Answer:

Recessive epistasis Interaction

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

A segment of DNA has the following nitrogen base sequence: ACT TCG.

(Please answer both)

A.What base sequence would appear on the complementary strand?

B.Using the above nitrogen base sequence, give a possible sequence showing that an error has occurred in the second base.​

Answers

Answer:

B is the correct answer

Explanation:

using th above nitrogen base........

Explanation:

adenine (A), thymine (T), guanine (G) and cytosine (C). These nucleotides come together to form long chains known as DNA strands. Two complementary DNA strands bond to each other in what looks like a ladder before winding into the double helix form.

Which of the following is not directly involved in protein synthesis?
tRNA
mRNA
Ribosomes
Mitochondria

Answers

The right answer is Mitochondria.

What can consumers do to make sure that more materials are recycled?
А buy products made from recycled materials
00
buy biodegradable plastics
С
use canvas bags when shopping
D
use paper bags instead of plastic bags

Answers

Answer:I feel like some of the answers for me would be A and B but if you only had to choose one I would choose A

Explanation: When you buy recycled you are helping the local economy and the environment. You already know that recycling keeps useful materials from going to waste in landfills or incinerators. But did you know that buying recycled-content products ensures that markets for those recovered materials are strong

Edit: Just figured out it's not B here's why:

Plastics marketed as "biodegradable" will contribute to plastic pollution if they are lost or littered. They do not break down as quickly and completely in the environment as the term might imply and thus can harm wildlife and ecosystems. Sorry if it's long

At the time when the consumers do to make sure that more materials are recycled so here option A is considered i.e. buy products made from recycled materials.

Recycled materials:

At the time when we purchase the recycled so you helped the economy as well as the environment. Also, recycling plays a vital role for minimizing the wastage and make the proper utilization of the product.

Hence, At the time when the consumers do to make sure that more materials are recycled so here option A is considered i.e. buy products made from recycled materials.

Learn more about recycle here: https://brainly.com/question/24112972

help me plz i’ll give extra points

Answers

Answer: see below

Explanation:

So, kinetic energy means an object is already in motion. Potential energy, means an object has the potential to transfer energy but is idle. Mechanical energy is something like a wheel turning. That is also correlated with kinetic energy. Which in turn, means when a wheel rotates, the object is in motion. Therefore transferring energy.

Essential Question: How do
substances move across a
selectively permeable membrane? I

Answers

Answer:

Semipermeable membranes, also termed selectively permeable membranes or partially. permeable memebrans, allow certian molecules or ions to pass through by diffusion. while diffusion transports materials across membrans and within cells, osmosis transports only water across membrane.

search up a site could quillbot.

copy the answer so it can traslate it in your own words.

Kennedy I love you I am gay and I know you are to so please answer I willing give you brainist please don’t answer until she answers

Answers

Answer:

PP

Explanation:

Answer:

HEYYYY YALL WHATS POPPINNN

Explanation:

When something rust,

Answers

Answer:

It gets heavier

Explanation:

The mass of iron increases as rusting happens when oxygen combines with iron therefore the mass increases.

Answer:

It gets heavier

Explanation:

The mass of iron increases as rusting happens when oxygen combines with iron therefore the mass increases.

what is natural selection?​

Answers

Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable. This variation means that some individuals have traits better suited to the environment than others.

Scientist have inferred the structure of Earth's interior mainly by analyzing

A. The Moon's Interior
B. The Moon's Composition
C. Earth's Surface Features
D. Earth's Seismic Data

Answers

Answer:

Earth's seismic data

Explanation:

It would be D Earths seismic data

A male and female Oompah have the same genotypes: blue face (ff) and big feet (Ll). Determine what they’re offspring may look like!

Answers

Answer:

They Will have Blue Face and Large feet

Explanation:

for the blue face you will get 100% Blue face

for the large feet you will 75% Large feet and 25% small feet

2 points
It's February, you're excited because it finally snowed enough to miss
school. You go outside with just jeans and a t-shirt on. Provide two
examples that tell me how your body responds to this environment so you
can maintain Homeostasis.
Your answer

Answers

Answer:

jayfeather loved halfmoon but it was forbiden

Explanation:

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


Sacculina carcini is a barnacle that attaches to the underside of the green crab. The barnacle finds a hole in the
green crab's exoskeleton, then uses microscopic hairs to feed on nutrients from the green crab's blood. The barnacle also lays its eggs in the green crab reproductive system, which sterilizes the green crab.
Which term describes the role of S. carcini in this relationship?
a.prey
b.host
c.parasite
d.predator
pls help!!

Answers

Answer:

c. parasite

Explanation:

the barnacle benefits from the host while the host is harmed from the barnacle

Answer:

c the parasite <3

Explanation:

How can a temporary lake create salt flats in Death Valley?

Answers

Answer:

A temporary lake create salt flats in Death Valley when Holocene lakes began to evaporate.

Explanation:

"Each time it has rained since, a new layer has been added. The flat is a vast area covered in salt that was deposited from evaporated water. When the water runs down the mountain, it dissolves minerals that precipitate out as the water evaporates."

Hope this helped!

Have a supercalifragilisticexpialidocious day!

What type of rock is formed when hot lava is cool and hardened

Answers

Answer:

A. Igneous

Explanation:

the answer is A) igneous

PLEASE HELP! - Describe why carbon, hydrogen, oxygen, nitrogen, & other elements can combine. Describe the results of these combinations.

Answers

Answer:

Carbon, Oxygen, Hydrogen And Nitrogen - Have In Common? They All Have The Same Number Of Valence Electrons. They All Have Unpaired Electrons In Their Valence Shells. They Are Elements Produced Only In Living Cells.

The Documentary, “Before the Flood,” was very informative. It was about

Answers

it was about a discussion of the dangers of climate change and it's possible solutions (:

Describe how some cells make food molecules

Answers

Answer:

All living cells release energy from food molecules through cellular respiration and/or fermentation. Some cells make food molecules using light energy through the process of photosynthesis

Explanation:

basiclly light and some cells eat others

Answer:

Beginning with energy sources obtained from their environment in the form of sunlight and organic food molecules, eukaryotic cells make energy-rich molecules like ATP and NADH via energy pathways including photosynthesis, glycolysis, the citric acid cycle, and oxidative phosphorylation.

Explanation:

Select all that describe features of prokaryotes.
A. Prokaryotes don't have a nucleus
B. Prokaryotes absorb nutrients directly from the water they live in
C. The cells are surrounded by a cell membrane
D. Prokaryote Organelles are free within the cell
E. Prokaryotes are multicellular organisms

Answers

Answer:

A. Prokaryotes don't have a nucleus

D. Prokaryote Organelles are free within the cell

Explanation:

Answer:

A

D

B

Explanation:

Hope this helps

:)

An increased cardiac output will provide more oxygen and more glucose to the working muscles.
Explain how this helps the athlete during exercise.

Answers

Answer:
During excercise there is greater cardiac output because the athlete requires more blood

Question 8 Oxidation, hydrolysis, acid precipitation, and carbonation are examples of abrasion. erosion. O chemical weathering. O mechanical weathering.​

Answers

Chemical weathering

My grades CLOSE tomorrow helpppppp

What can affect the death rate of mouse population and explain why

Answers

Something that could affect the death rate of mouse population is the over population of a predator let’s say in an area you have a population of snakes and mice if there are more snakes in that area than mice then they can’t populate quickly enough causing the death rate of the mice to increase. Hope this helps

The death rate of the mouse population is significantly affected by the overpopulation of its predators like cats, owls, snakes, etc.

What do you mean by Population?

The Population may be defined as a group of individuals belonging to the same species living in the same area at a given time period of time.

According to the context of this question, if the number of predators of the mouse population is higher than that of the mouse, the death rate is generally found to be higher.

While if the population of the predator is low, as compared to the mouse, then the death rate is probably less. Other factors like space, food, mating partners, etc. may also describe the death rate of any species.

Therefore, the death rate of the mouse population is significantly affected by the overpopulation of its predators like cats, owls, snakes, etc.

To learn more about Predators, refer to the link:

https://brainly.com/question/26286956

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Which statement is most accurate regarding the energy in the process of photosynthesis?

Light energy does not need to be present for photosynthesis to occur.

Light energy is completely lost during the photosynthesis reaction.

More energy is created than what was present initially.

Light energy is converted into chemical energy in photosynthesis.

Answers

Answer:
D) Light energy is converted into chemical energy in photosynthesis

Answer:

D) Light energy is converted into chemical energy in photosynthesis

Explanation:

Hope this helps

A producer gets energy from _______ and converts it into food. a.Primary consumers b.The sun c.Nonliving organic matter d.Secondary consumers

Answers

The answer is going to be B. The sun
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