What was the name of the supercontinent 2million years ago?

Answers

Answer 1
Pangaea

Explanation:
2 million ya all land masses were connected into a single form of land called Pangaea.

Related Questions

“What are 3 scientific words that relate to the cell cycle?”

( question I have on an assignment )

Answers

Answer:

the cycle of growth and asexual reproduction of a cell, consisting of interphase followed in actively dividing cells by prophase, metaphase, anaphase, and telophase

Explanation:

hope this helps


After radiation exposure, a cell that cannot divide will most likely stay in which phase?

Answers

Answer:

G0 phase

Explanation:

IF the cell doesn't receive a signal to divide, then it will go into a stage called the G0 phase. Most cells are in this stage until they receive a signal to divide, and then continue the cell cycle.

Why were Wegener's ideas about continental drift initially rejected

Answers

Answer:

The main reason that Wegener's hypothesis was not accepted was that he suggested no mechanism for moving the continents.

Explanation:

It wasn't until 1928 that a Scottish Geologist, Arthur Holmes, came up with an explanation for why continents move. He believed that heat traps in the Earth caused convection currents. There were areas where fluids trapped beneath Earth's crust heat up, rise, spread laterally, then cool and drop back down. This hypothesis didn't have a wide acceptance either but was revived in the 1940s and 1950s when scientists started to learn more about the seafloor and the magnetic properties of oceanic crust.

Hope this helps!

Brain-List?

Explain how mitosis maintains the chromosome number
of the original cells when forming new cells.

Answers

The cell duplicates it’s contents at the start of mitosis and only divides one time compared to meiosis that divides 2 times thats why chromosome number is lower in meiosis

Relation between mitosis and chromosomes:

During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. Because this process is so critical, the steps of mitosis are carefully controlled by certain genes. As they move, they pull the one copy of each chromosome with them to opposite poles of the cell. When mitosis is not regulated correctly, health problems such as cancer can result.

When a cell divides by way of mitosis, it produces two clones of itself, each with the same number of chromosomes.

Learn more:

brainly.com/question/5175368

When we speak of life possibly outside of Earth, we use the term ______

Answers

Answer:

Extraterrestrial.

Explanation:

It means of or from outside the earth or its atmosphere.

Answer:

we use the term extraterrestrial life

Explanation: extraterrestrial life is hypothetical life which may occur outside of earth and which did not originate on earth.

True or false a mutation is a random change in DNA

Answers

false let me now if this helps

Which statement describes a law based on a tested hypothesis explains how the process occurs describes something about the natural world subject to change as new evidence is discovered

Answers

Answer:

based on a tested hypothesis

Explanation:

Laws are generally based on tested hypotheses.

Theories are first derived from repeatedly tested and proven hypotheses. Scientific laws are derived from theories that have been proven to be true over a wide range of phenomenon. Hence, laws are overwhelmingly proven facts that cannot be changed.

Scientific laws are internally consistent, compatible with evidence, and are testable against a wide range of phenomenon. However, they can be reviewed as more evidences emerge that have not been known before.

Heredity is the way animals and plants pass traits on to their offspring. True False

Answers

Answer:

False

Explanation:

False because Plants and Animals get their traits from their parents. Each offspring is a mix of both parents

You are comparing the density of sea water to the density of fresh water. (Remember,
density is mass divided by volume.) Describe how you could determine the density of
sea water, including the names of the equipment needed to make the required
measurements.

Answers

Answer:

To know and compare the difference between the density of the fresh water and salt water or sea water require a graduated cylinder, balance, and weighing machine. The graduated cylinders are the containers that have markings on them to measure the volume of the liquid.

First, fill the cylinder with 1000 ml of fresh water which is the measure of the volume. now weight the cylinder filled with the fresh water and then find the difference between filled and empty container divide the mass of the fresh water by its volume, the result is the density of fresh water.

Repeat the process with salt water or sea water. The answer would be sea water has more density than fresh water.

What does RNA do?

Is it just me or is every telling me to just die today.... like many of my friends said i should just kiII myself, that it would be better for everyone because no one would miss me... or is that juts me?

Answers

Answer:

The RNA carries out these instructions; it copies and transfers the genetic code from the DNA to ensure the relevant proteins are made. So just think of it as “DNA makes RNA make proteins”. Whereas DNA stands for deoxyribonucleic acid, RNA stands for ribonucleic acid.

Explanation:

Nooooo! Please, don't feel that way. I'm sorry you have to go through something like that. If you want someone to talk to everyday and tell me about your day then you can always talk to me or add me! Just know that I'm always here to love you, and support and care for you!

Crossing over occurs during meiosis and leads to changes in the chromosomes. What type of chromosomes does crossing over produce?
1. Chromosomes containing DNA from two different parental chromosomes
2. Chromosomes identical in genetic makeup to the parental chromosomes
3. Chromosomes containing more genes with non recombinant chromosomes
4. Chromosomes carrying genes from one parent

Answers

Answer:

1.

Explanation:

because the DNA is being mixed up while crossing over

Crossing over occurs during meiosis and leads to chromosomes containing DNA from two different parental chromosomes, hence option 1 is correct.

What is meiosis?

New allelic combinations are created in the daughter cells as a result of the exchange of genetic material between non-sister chromatids of homologous chromosomes during meiosis.

Homologous chromosomes couple along their lengths during meiosis, one from each parent. At locations known as chiasma, the chromosomes overlap.

The chromosomes split and reunite at each chiasma, exchanging part of their genes in the process. Genetic diversity comes from this recombination.

Therefore, the genetic complement in each daughter cell at the end of meiosis is best described as a haploid set of chromosomes resulting from chromosomal recombination between the parents.

Learn more about meiosis, here:

https://brainly.com/question/20923365

#SPJ2

i will give brainliest

What were the different opinions of the scientists working on the project? Check all that apply.


Saving American lives had to be the priority.


The bomb was needed to force a surrender.


The United States should first demonstrate the bomb’s power before using it.


An atomic weapon should never have been created.


The use of the bomb would have no impact in the future.

Answers

Answer:

A, B, and C are the correct answer

Explanation:

Got it right on Edge2021

Trust me and give me a brainliest please

Answer:

ABC

Explanation:

The San Marcos salamander, Eurycea nana, is a light reddish-brown translucent salamander about 2-5 cm in length. E. Nanais foundonly inSpring Lake and a portion of the San Marcos River.

Answers

Complete question:

The San Marcos salamander, Eurycea nana, is a light reddish-brown

translucent salamander about 2-5 cm in length. E. nana is found only in

Spring Lake and a portion of the San Marcos River.

Which human activity would most likely decrease the ability of the

salamanders to survive?

The addition of a new food source into the river that limits competition for

resources

Tourism that helps fund the educational programs related to river ecosystem

conservation

Public transportation that reduces the number of automobiles that contribute to

pollution runoff into the river

Increasing water consumption that decreases the flow of clean water from the

springs that feed the river

Answer:

Increasing water consumption that decreases the flow of clean water from the springs that feed the river

Explanation:

In this question we are required to state the human activity that may likely cause the reduction in the survival rate of the salamander.

the first three options in the question are not the answer to this question. this is because options 1,2,3 would have positive impacts on the Salamander. these positive impacts would increase the ability of the salamander to survive and not decrease it as the question says.

the correct answer is the last option. that is the 4th option. because it has to do with decreasing the amount of water that flows in to the Salamanders habitat by human activities. if humans increase water consumption, then the flow of clean water would reduce. This would then have a negative effect on the Salamander.

The ? era featured the longest periods with no life forms on Earth.
A Palezoic
B. Precambrian
C. Cenozoic
D. Mesozoic

Answers

Since D, Mesozoic Era had dinosaurs you can cross that off, C was when Wooly mammoths existed so that’s not it. So the correct answer for you would be B. PRECAMBRIAN. Hope this helps :)

Answer:

B. Precambrian

Explanation:

Which of the following has the stages of getting food products to consumers in the
correct order?

Distributer, wholesaler, retailer, packager

Harvester, wholesaler, processor, distributer

Processor, packager, harvester, retailer

Producer, packager, distributer, retailer

plssss this is for my final exam :(

Answers

D. Producer, packager, distributer, retailer

I hope this helped!

definition of biotechnology​

Answers

Answer:

definition

Explanation:

the exploitation of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones, etc.

match each hypothesis with how the moon formed the statement that best describes it?​

Answers

Answer:

the Moon and Earth formed at the same time from the same cloud of material. 4. Colliding planetesimal Hypothesis: As per this theory a lot of small rocky objects called as planetesimals collided and combined over a large period of time to form the Moon

Explanation:

Answer:

Giant Impact Theory: The Moon was formed from the collision between Earth and another Mars sized body

Colliding planetesimal Hypothesis: The Moon was formed from collisions and combining of planetesimals

Capture Hypothesis: The Moon was locked into orbit by Earth's gravity as it was passing by it

Accretion Hypothesis: The Moon was formed from the same cloud of material as Earth

(I apologize if this is not what you meant)  

HELP ASAP
PLEASE !!!!

Why is suburban sprawl tightly linked with environmental problems caused by
transportation?
A. Commuters who live in suburbs are dependent on automobiles that emit air
pollution.
Х
B. Commuters who live in suburbs are more likely to walk and suffer from air
pollution
C. Commuters who live in suburbs are dependent on mass transit systems that
emit air pollution.
D. Commuters who live in suburbs are dependent on mass transit systems that
add to water pollution.

Answers

A.
Commuters drive personal vehicles to their places of work: offices, manufacturing plants etc.

Some may use car pooling or mass transit like buses. But too many want the luxury and convenience of coming and going on their own terms.

IMHO car pooling and mass transit needs to be used more to reduce environmental harm.

Should we build more nuclear plants why or why not?

Answers

Answer:

I think not bc its bad for the environment.

What happens to energy that is transmitted through or reflected off a material?

Answers

The light wave could be absorbed by the object, in which case its energy is converted to heat. The light wave could be reflected by the object. And the light wave could be transmitted by the object. ... When this occurs, objects have a tendency to selectively absorb, reflect or transmit light certain frequencies.

When light is transmitted through or reflected off a material, the light is converted into heat.

What is light?

Light is an entity that make things visible to eyes. It is an electromagnetic radiation. It can not be produced or end, it's just converted into one form to another form.

The item may absorb the light wave, in which case its energy is changed to heat. The object might reflect the light wave. Additionally, the object might transmit the light wave. When this happens, things often selectively absorb, reflect, or transmit certain light frequencies.

The light is passed through some objects and do not get passed through some objects. The light that do not pass through an object is reflected back to the same place, but when it is not reflected, it converts into heat.

Therefore, the light is converted into heat when it is not reflected.

To learn more about light, refer to the link:

https://brainly.com/question/13441446

#SPJ2

True or False? My brain refuses to compute.
Volume is defined as the amount of mass that an object has.

Answers

Answer: true

Explanation: it takes up as much space as it has

the answers is true hope this helps

A _____ is any push or pull in a direction.


1. force

2. inertia

3. friction

4. velocity

Answers

Answer:

1. force

Explanation:

A force is any push or pull in a direction.

the answer is, force.

HELPPP!!! What would the mass of an artificial cell containing 20mL of a 25% sugar solution be after it was placed in a beaker containing a 30% sugar solution for 30 minutes? Remember to include units in your answer.

Answers

Answer: The sugar will move from the 50 % concentration to the 0 % concentration.

Explanation:

Dialysis is an analytical technique which uses a semipermeable membrane in order to remove the impurities from the body.

This technique is used when the kidney failure inside the body takes place. The kidney inside the body perform function of filtration, when kidney failure takes place then the dialysis is used.

In this case the tubing bag containing 0% sugar is put into a sugar solution having 50% solution.

After sometime the sugar will move from 50 % to 0% bag because of the phenomenon known as osmosis.

Compared with mitosis, the process of meiosis results in daughter cells that are-

A. haploid cells with the same number of chromosomes as the parent cells

B. haploid cells with a smaller number of chromosomes than the parent cells

C. diploid cells with a smaller number of chromosomes than the parent cells

D. diploid cells with the same number of chromosomes as the parent cells

Answers

Answer:

Explanation:

e

Answer: Haploid cells with a smaller number of chromosomes than the parent cell

Explanation: meiosis results in four daughter cells which are haploids. Haploids have half the number of chromosomes of the diploid parent cell.

If a bat, an alligator, and a bird evolved from a common ancestor, what most likely can be concluded

A. They are able to survive changes in their environments
B. They live in the same part of the world
C. They have similar anatomical structures
D. They are in the same biological classification

Answers

the answer is C. They have similar anatomical structures

If a bat, an alligator, and a bird evolved from a common ancestor, most likely can be concluded that they have similar anatomical structures. Thus, option C is correct.

What are the different structures of animals?

Structures of animals that have different appearances and functions but seem to have evolved from the same body part in a common ancestor. This can be found in Cat's leg and human arms.The structure do not need to look the same or perform the same functions.

The analogous structure evolve in different species living in two different geographic location with similar environmental conditions. Thus, the analogous structures have similar function and purpose but since they have not evolved from the same ancestor their structure vary a lot for example – wings in both birds and butterfly are meant for flight but their structure is entirely different.

The arrangement of bones is identical in all three organisms. This effectively means that all these organisms gradually evolved from a common ancestor.

Therefore, If a bat, an alligator, and a bird evolved from a common ancestor, most likely can be concluded that they have similar anatomical structures. Thus, option C is correct.

Learn more about alligator on:

https://brainly.com/question/663907

#SPJ6

Multiple choice!!!
Long term environmental change to an area is likely to create selective pressure that will
A. mutate the genetic makeup of organisms

B. influence adaptations of populations over time.

C. cause a decrease in reproductive rates.

B. allow organisms to select the best adaptations.

Answers

The answer is b. Influence adaptation of populations over time

In camellia plants, flower color is controlled by a single gene with codominant alleles. A camellia plants with red flowers (RR) is crossed with a camellia plant with white flowers (WW). What are the expected phenotypes of the offspring of this cross?

A.
Half will have red flowers and half will have white flowers.
B.
All will have both red and white flowers.
C.
All will have pink flowers.
D.
All will have red flowers.

Answers

Correct answer is - C All will have pink flowers.
Why? - Codominance is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. In codominance, however, neither allele is recessive and the phenotypes of both alleles are expressed. Each parent = Red + White = Pink.

Nancy visits a local reservoir where she feeds ducks and other birds. Every time she feeds them she notices that they fight for the best pieces and some do not get any. All living things struggle to get the necessary amount of food, water, and shelter. What is the term for this struggle? * A. overproduction B. natural selection C. variation D. Competition ​

Answers

Answer:

D. Competition

Explanation:

Hope u guys have great day. ✌❤

Competition is defined as a biological interaction between or among the same or different organisms where organisms fight for resources. Competition explains this struggle. So, the correct option is D.

What is Competition?

Competition is defined as an interaction between organisms or species in which both require a resource in limited supply that reduces the fitness of both organisms because the presence of one of the organisms will always limit the resource available to the other that reduces the quantity.

Competition is defined as a biological interaction between or among the same or different organisms where organisms fight for resources. Competition explains this struggle. Some example of competition is trees in the forest grow tall to compete for sunlight.

So, the correct option is D.

Learn more about Competition here:

https://brainly.com/question/28289403

#SPJ5

Even though jellies can swim, why are they still classified as plankton?

Answers

Answer:

All plant and animal organisms that float or move to a limited extent in water, carried by currents and waves are called plankton.

Explanation:

Jellyfish are on the border of plankton and nekton. They are made of gelatinous tissue in which water makes up 98% of the body's composition. Simple anatomy, they have a single-opening digestive tract and a reticular nervous system.

define immunology?
please answer this question​

Answers

Answer: See explanation

Explanation:

Immunology is a vital branch of biological sciences that has to do with how the immune system is being studied.

The function of the immune system to our body is vital as it helps in protecting against diseases. The person that diagnose, and treats immunologic conditions, is referred to as an immunologist.

Other Questions
I need help please, this is due today. Take a beaker (jar or jug) with some water and put some drops of red or blue ink in it.Take a tender twig of any flowery plant with leaves and flowers ,preferably white flowers,and put it in the beaker for 6 to 8 hours. What do you observe?For further examination cut across its stem and look for the presence of coloured water.Explain your observations. PART B: Which detail from the text best supports the answer to part a? A. Roman evolutionarily point altruism doesnt seem to make any sense. According to the modern near Darwinian view humans beings are basically shellfish Can I please Get Help with This Question ? The difference between temperature and thermal energy is that___________. student missed 88 questions on a test and scored a 2%, how many questins are on the test if all were of equal value -5x = 90ASAP plz help SNOWFALL Use the graph below. It shows the depth in feet of snow after each two-hour period during a snowstorm.Find the slope of the line. Group that contributed to American society and culture.One significant contribution from this group on American society and/or culture.Native AmericansAfrican AmericansWomenChildrenExplain how the contribution affected American society and/or culture. (Hint What did Americans gain from the contribution?)Native AmericansAfrican AmericansWomenChildren discribe how human impact on the environment can be positive or negative Why did Reconstruction begin to break down in the 1870s? Republican politicians took advantage of kickbacks and bribes Political Corruption and scandals None of the above All of the above Let f(x) = 3x - 5 and g(x) = x +10 Find f(g(x)) How did the inclusion of of these words In the declaration point to a new philosophy of governing? Please help me ASAP Ill mark Brainly Help meee please......... I WILL GIVE BRAINLIEST!!!Choose the relative clause in this sentence.The day when school starts again just so happens to be my birthday!Choose 1 answer:(Choice A)Ajust so happens to be my birthday(Choice B)Bwhen school starts again(Choice C)Cagain just so happens 3. What are two ways to increase the amount of Leaf miner caterpillar? The sum of 2 numbers is 56 and the difference is 16 what are the numbers Help I need it fast The purpose of translation is to -create new organelles and recycle old ones.prevent mutations that may, harm an organism.produce messenger RNA as a first step in protein synthesis.create proteins by bonding together amino acids. Which of the following explains how inductive reasoning differs from deductive reasoning? A. Inductive reasoning makes broad generalizations from specific observations. B. Inductive reasoning makes specific observations from broad generalizations. C. Inductive reasoning involves logical movement from observations to conclusions. D. Inductive reasoning provides defined limits to observations and conclusions.