which came first the chicken or the egg
Eggs come from chickens and chickens come from eggs: that’s the basis of this ancient riddle. But eggs – which are just female sex cells – evolved more than a billion years ago, whereas chickens have been around for just 10,000 years. So the riddle is easily solved…or is it?
Taken at face value, there is no doubt that the egg came before the chicken. We tend to think of eggs as the shelled orbs laid by birds from which their chicks hatch – unless we eat them first. But all sexually reproducing species make eggs (the specialised female sex cells). That’s 99.99 per cent of all eukaryotic life – meaning organisms that have cells with a nucleus, so all animals and plants, and everything but the simplest life forms.
We don’t know for sure when sex evolved but it could have been as much as 2 billion years ago, and certainly more than 1 billion. Even the specialised sort of eggs laid by birds, with their tough outer membrane, evolved more than 300 million years ago.
As for chickens, they came into being much later. They are domesticated animals, so evolved as the result of humans purposefully selecting the least aggressive wild birds and letting them breed. This seems to have happened in several places independently, starting around 10,000 years ago.
The wild ancestor of chickens is generally agreed to be a tropical bird still living in the forests of Southeast Asia called the red junglefowl – with other junglefowl species possibly adding to the genetic mix. From these origins, humans have carried chickens around the world over the past two millennia or more.
So, eggs dramatically predate chickens. But to be fair to the spirit of the riddle, we should also consider whether a chicken’s egg predates a chicken. As humans consistently chose the tamest red junglefowls and bred them together, the genetic makeup of the resulting birds will have shifted. At some stage during this domestication process the red junglefowl (Gallus gallus) evolved into a new subspecies, Gallus gallus domesticus, AKA the chicken.
In practice, it is impossible to pinpoint the moment when this happened. But in theory, at some point two junglefowl bred and their offspring was genetically different enough from the species of its parents to be classified as a chicken. This chicken would have developed within a junglefowl egg and only produced the very first chicken’s egg on reaching maturity. Looked at this way, the chicken came first.....
Some industries are more ‘global’ than others why?
how do i start getting better at drawing?
lots of practice thats how i got good
Answer:
practice everyday! learn the basic shapes and make sure you learn shading! shading is very important! if you dont have a shading stump i recommend using a q-tip or cotton ball! also make sure to watch some tutorials on basic body parts, anatomy is also really helpful for drawing!
Explanation:
Activity 2: Click and Listen!
Direction. Listen to the tlatin america
Dunham quotes two abstract artists, Piet Mondrian (p. 89) and Wassily Kandinsky (p. 90), who both explain why they do not use recognizable figures in their art. Look at these links if you aren't familiar with their art, and then respond to their explanations. Do you agree with them
how does joe have so many
Why did Andy Warhol repeat Elizabeth Taylor's image forty-two times?
Andy Warhol repeat Elizabeth Taylor's image forty-two times as part of pop art.
The Pop ArtPrinting of Elizabeth Taylor in the 1960s made to the exhibition with vibrant colours.
Warhol used a photograph of Taylor from Butterfield 8 film as the basis for the screenprint.
Andy Warhol became a famous pop artist in the 1960s during visual art movements.
Therefore we can conclude that Elizabeth Taylor's image print forty-two times pointed pop art.
Learn more about Andy Warhol here:
brainly.com/question/1470330
Read the definitions of "culture" provided at the website below. You may also wish to research additional definitions or interpretations. In the space below, respond to the questions:
Answer:
Ferroconcrete is reinforced concrete that combines concrete and ________.
a.
lead
c.
copper
b.
iron
Explanation:
please help I will give you the brainiest
Which is NOT a way to create an abstract photograph?
Group of answer choices
Zooming in very close to a part of a subject
Unusual viewpoint
Editing software
framing a realistic subject in a way that is representational and recognizable
Answer:
I think it C
Explanation:
Have a good day!
Whats the zodiac sign of someone being born today in March 30th?
Answer:
Aries
Explanation:
Answer:
Aries born on March 30th, you are temperamental and powerful. Witty and charming, it doesn't take you long to have people on your side.
Explanation:
Astrological symbol: Ram. This relates to power, wealth, overall success and tension coupled with peace
Early photography of war and conflict was hampered by which of the following?
the inability of photography to capture rapid action
the inability to develop the wet plates
the inability of photography to capture reflections on water
the inability of photography to be produced outside of cities
Answer:
B
Explanation:
What is used to organize music history?
A. categories
B. style periods
C. time frames
D. families
Answer:
A. Categories
Explanation:
Because, every music has a specific sections. For example: Pop music and hip-hop are in different categories
What is used to organize music history is categories.
What is musical composition?This is a process of compiling piece of music before turning to full song. Here, several elements such as harmony, tempo and melody are combine to form music.
Also, music have various categories, which are for example: Pop music and hip-hop.
Hence, what is used to organize music history is categories.
Learn more about musical composition here : https://brainly.com/question/26373912
#SPJ2
Which of the following describes the surroundings in which Images exist or the circumstances of their vlewing?
Context
Installation
Intention
Perception
need help reading notes ASAP
these are mallet notes
Answer: Bb, D, C, Eb, D, F, Eb, G, F, D, Eb, C, Bb, D, Bb, F (tie), G, F, D, Bb, D, F, Eb, D, C, Bb.
Explanation:
What is the name of the piece above
I don’t remember
Who created this art work?
Guys who agrees BTS should have won a grammy? #GrammysAreRigged
Please no haters on the page.
Answer:
YOU BETTER BELIEVE IT
Explanation:
5
Drag the tiles to the correct boxes to complete the pairs.
Match the expected function with the correct type of technology.
front-of-house
back-of-house
self-service
food cost control
self-checkout
Payment
9
Select the correct answer.
Pueblo is preparing a steak medium-well, as per the customer's request. At which station is Pueblo working?
A. the grilling station
СВ.
the cleaning station
C. the prep station
OD. the production station
Answer:
A.
Explanation:
He is on the grill to cook it. Please mark me brainiest
What word does the pitch on the staff spell?
Please help I will give you the brainiest
thoughts on charli damelio ?
Answer:
she use addison for clout and its not good
Explanation:
How many beats will be in the measure? *
Answer:
3 beats
Explanation:
Answer:
4 4 4 4 4 4
Explanation:
Which artist was Raphael's teacher?
Mantegna
Perugino
Piero della Francesca
Signorella
Answer:
Perugino. It's B. Perugino.
How do you think the intended audience shapes a work of art? Please give one example with your answer.
explain construction in sculpture
Answer:
Sculpture is the branch of the visual arts that operates in three dimensions. It is one of the plastic arts. Durable sculptural processes originally used carving (the removal of material) and modelling (the addition of material, as clay), in stone, metal, ceramics, wood and other materials but, since Modernism, there has been an almost complete freedom of materials and process. A wide variety of materials may be worked by removal such as carving, assembled by welding or modelling, or moulded or cast.
Your friend Sophia is going to the Korean Peninsula for vacation this summer. She is really interested in megalith burial sites, but she is afraid
there won't be any to see there. What would you tell her to help her gain knowledge about the megalith sites on the Korean Peninsula?
OA
One of the oldest astrological monuments is found in Nabta Playa, which is south of the present-day city of Cairo in Egypt.
OB. On the Korean peninsula, archaeologists estimate that around 35,000 megaliths can be found.
Oc. Perhaps the most well-known monument created during the Neolithic period is Stonehenge.
OD. One of the older examples of a passage tomb is Newgrange, created around 3200 BCE.
Answer: It's B. On the Korean peninsula, archaeologists estimate that around 35,000 megaliths can be found
Answer:
OB. On the Korean peninsula, archaeologists estimate that around 35,000 megaliths can be found.
Explanation:
this is the correct option for Plato / edmentum
List the responsibilities of the host/hostess.
Answer:
Host/Hostess responsibilities include greeting guests, providing accurate wait times and escorting customers to the dining and bar areas. For this role, you should have solid organizational and people skills to make sure our guests have a positive dining experience from the moment they arrive till their departure.
Explanation:
Which statements about landscapes by Thomas Cole, Vincent van Gogh, Shen Zhou, and Ansel Adams are true?
Choose all answers that are correct.
Van Gogh expressed emotions by using intense color, bold brushwork, and distorted forms.
Shen Zhou used values of black ink to express an energetic mood as well as a limited number of brushstrokes to build up the objects.
Adams used a small range of gray values in his photographs.
Van Gogh used thick, rhythmic brushstrokes that create movement and guide the eyes through his paintings.
Cole added symbolic, moralistic meaning to his realistic landscapes by using exacting detail and idealized features.
Adams captured how he felt about a scene by manipulating the values.
Answer and Explanation:
I believe your answers are:
Van Gogh expressed emotions by using intense color, bold brushwork, and distorted forms. .
Adams used a small range of gray values in his photographs..
Van Gogh used thick, rhythmic brushstrokes that create movement and guide the eyes through his paintings..
Cole added symbolic, moralistic meaning to his realistic landscapes by using exacting detail and idealized features..
What is the topic sentence of this paragraph?
The Renaissance in Europe brought about a great change from the world of the Middle Ages. In the Renaissance, people became interested in all kinds of learning, made advances in science, medicine, art, literature, architecture, and were open to new ideas and new ways of doing things. Some took the first steps towards modern scientific thought. And Leonardo was right in the middle of it all.
Some took the first steps towards modern scientific thought.
The Renaissance in Europe brought about a great change from the world of the Middle Ages.
In the Renaissance, people became interested in all kinds of learning, made advances in science, medicine, art, literature, architecture, and were open to new ideas and new ways of doing things.
And Leonardo was right in the middle of it all.
Answer:
B. The Renaissance in Europe brought about a great change from the world of the Middle Ages.
Explanation:
Not only does it umbrella the rest of the content in this paragraph, generally the first sentence in a paragraph is the topic sentence.
Answer:
B. The Renaissance in Europe brought about a great change from the world of the Middle Ages.
Explanation: