Biology Middle School

Which two large landmasses formed when Pangaea first started to separate?
Africa and Europe
Europe and Laurasia
Gondwanaland and North America
Laurasia and Gondwanaland

Answers

Answer 1

Answer:It's D

Explanation:

just took the exam

Answer 2

Laurasia and Gondwanaland are the two large landmasses are formed.

Pangaea begins to break up and splits into two major landmasses i.e. Laurasia which is located in the north that comprise of North America, Europe, and Asia except Indian subcontinent.

While on the other hand, Gondwana is located in the south, made up of the other continents such as Antarctica, South America, Africa, Madagascar, Australasia, Arabian Peninsula and the Indian subcontinent so we can conclude that Laurasia and Gondwanaland are formed from breaking of Pangaea.

Learn more: https://brainly.com/question/16932140

Which Two Large Landmasses Formed When Pangaea First Started To Separate?Africa And EuropeEurope And

Related Questions

In ancient times, plant and animal remains got buried, compressed, and transformed into fossil fuels like coal. Burning these fossil fuels today will affect which biogeochemical cycle?

Answers

It will affect the Carbon cycle

Which of the following structures would be used to identify a prokaryotic cell? A. mitochondria, Golgi body and lysosomes B. cell wall, flagella and chloroplasts C. cell membrane, ribosomes and a chromosome

Answers

Answer:

the is b- cell wall,flagella and chloroplasts

Which event in Earth's history most directly allowed life to exist on land?
Earth's temperatures increased, causing widespread evaporation.
Earth collided with a large object, forming the moon.
Single-celled organisms released oxygen into the air when they photosynthesized.
Single-celled organisms absorbed harmful gases from the air when they first formed.

Answers

Answer:

c; Single-celled organisms released oxygen into the air when they photosynthesized.

Explanation:

Got it right on edge

Answer:

c

Explanation:

Climate change causes extreme weather conditions
such as:
A. Flooding
B. Heat waves
C. Hurricanes
D. All of the above

Answers

Answer:

D. All of the above

Explanation:

Answer:

The answer is all of above I think

In affected colonies ________________.
a. There is no queen bee
b. The food stores remain untouched
c. There are dead bees everywhere
d. The comb has disintegrated
2. Colony collapse disorder will only affect the price of honey.

Answers

A, there is no queen bee

which characteristic of life distinguishes a fire and a flowering plant? A. use of energy B. movement C. growth D. defined boundary

Answers

Answer:

A. Use of Energy

Explanation:

3. How is primary and secondary succession the same?

Answers

Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before.Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat.


Hope this helps :))

What property of water allows fish and other animals to swim below the
frozen surface of lakes and rivers during the winter?
A. Solid water is denser than liquid water.
B. Solid water is less dense than liquid water.
C. Solid water is warmer than liquid water.
D. Solid water is colder than liquid water.

Answers

B. Solid Ayer is less dense that liquid water
The answer is b: solid water is less dense then liquid water

I investigated sexual and asexual reproduction as well as the processes of cellular division by mitosis and meiosis Hypothesis: Record your predictions

Answers

Answer:

what are we predicting, the type of division or what the outcome will be

sexual reproduction is humans. asexual is plants.

mitosis divides into one nuclear division while meiosis divides into two nuclear division

Which statement best supports the theory that eukaryotic cells evolved
through endosymbiosis?
A. Eukaryotic cells can eat prokaryotic cells by engulfing them with
cell membranes.
B. All prokaryotic cells are covered by a stiff cell wall that protects
them.
C. Their chloroplasts contain DNA that is similar to that of
prokaryotes.
D. Chains of amino acids form inside tiny bubbles filled with organic
molecules.

Answers

Answer:

Their chloroplasts contain DNA that is similar to that of

prokaryotes

Explanation:

This is based on the theory that the membrane bound organelles of chloroplast and mitochondria  which are peculiar to Eukaryotas evolved from bacteria by endosymbiosis. Thus bacteria contain the DNA of these organism Evidently, these organism (Eukaryotas) must have cohabited  with bacteriA some time ago

Which of the following are likely to be affected by a magnet?​

Answers

Answer:

an access card as some may contain metallic properties

Explanation:

electromagnets could also be used in the scanner so this could be tried

hope this helps

Alleles are:

A)different genes
B)building blocks of DNA
C)proteins
D)alternate forms of a gene

Answers

Answer:

Alternate form of gene

Explanation:

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.

Answer:

its D Alternate form of gene

How do you know the molecule below is an unsaturated fat?
Η Η Η Η Η Η Η Η Η Η
L 1 1 1 1
|
H-C-C-C=C-C-C-C-C=C-C-C
1
1
HH HH
H
20
OH
A. The molecule contains carbon double bonds.
B. The molecule contains a carbon-oxygen double bond.
C. The molecule has no nitrogen atoms.
D. The molecule has an OH group on the end.

Answers

We know the molecule below is an unsaturated fat because the molecule contains carbon double bonds.

What is an unsaturated fat in molecule?

An unsaturated fat is a fat or fatty acid in which there is at least one double bond within the fatty acid chain. A fat molecule made of chains where some carbon atoms are not fully saturated with hydrogen atoms.

Unsaturated fat, a fatty acid in which the hydrocarbon molecules have two carbons that share double or triple bond and are therefore not completely saturated with hydrogen atoms. Due to the decreased saturation with hydrogen bonds, the structures are weaker and are, therefore, typically liquid at room temperature.

Unsaturated fats are either monosaturated fats, as in olive or canola oils, or polyunsaturated fats, as in nuts, seeds, and seed oils

The correct answer is option A.

Learn more about unsaturated fat, refer:

https://brainly.com/question/12399618

#SPJ2

Which of the following is not an appropriate unit for temperature? *
Kelvin
Celsius
O Joules
O Fahrenheit

Answers

Answer:

Joules is not appropriate

Explanation:

Joules is a unit of energy I believe, but definetely not temp.

The answer is Joules as it is a measurement of energy.

Using Escherichia coli and Entamoeba coli as examples, explain why the genus name must always be written out for the first use.

Answers

Answer:

First is always the name of the species, and second is the name of the genus or of the microbiological family group in which the microorganism is found, the name of the species always goes forward since in this way we can identify some characteristics and characteristics of the microorganisms

Explanation:

Example, in this case both microorganisms are part of the "Coli" family but the entomoeba is an AMEBA and the escherichia is an ENTEROBACTERIA, therefore already in its name it indicates a great difference between the two despite being in the same genus microbiological

Which option describes cations?

Answers

Answer:

D

Explanation:

A cation is a positively charge ion, such as a sodium ion, as when it becomes an ion, it gives away electrons, becoming positively charged.

The opposite is an anion, which is a negatively charged ion, such as oxygen as it receives elections from the cation when forming an ionic bond.

Cations are the positively charged ions.

What are cations?

A cation has more protons than electrons, consequently giving it a net positive charge. For a cation to form, one or more electrons must be lost, typically pulled away by atoms with a stronger affinity for them.

The number of electrons lost, and so the charge of the ion, is indicated after the chemical symbol, e.g. silver (Ag) loses one electron to become Ag+, whilst zinc (Zn) loses two electrons to become Zn2+.

In contrast, most nonmetallic atoms have a stronger attraction to electrons than do metallic atoms, and as a result, they gain electrons to form anions.

Therefore, Cations are the positively charged ions.

To learn more about cations, refer to the link:

https://brainly.com/question/28710898?

#SPJ6

plz answer the question below

Answers

Answer:

Can you take a screenshot of the document? It says I have to download it and I don't have microsoft word. Haha, MacBooks.

Phosphorus is difficult for plants and animals to access in nature because____

Answers

Answer:

If soils are too acidic, phosphorus reacts with iron and aluminum. That makes it unavailable to plants. But if soils are too alkaline, phosphorus reacts with calcium and also becomes inaccessible.

Explanation:

The picture shows a contractile vacuole of a unicellular freshwater organism. The contractile vacuole regulates the flow of water into and out of the cell in an aquatic environement. What condtions cause the contracile vacuole to fill with water? Your answer: A.The concentration of water is greater outside the cell than inside the cell. B.The concentration of water inside the cell is the same as the concentration outside the cell. C.The temperature of water in the vacuole is higher than the temperature of its environment.

Answers

Answer:

A. The concentration of water is greater outside the cell than inside the cell.

Explanation:

This is a question having to do with tonicity, or the concentrations of solutes or solvents across a membrane.  In these conditions, there is a hypotonic solution inside the cell (hypo means low, because there's less water inside), which will cause water to come inside.

The contractile vacuole stops the cell from exploding by regulating the amount of water that can come in. Otherwise, it would lyse, or split open.

Why are fossil fuels considered nonrenewable resources?

A. They take millions of years to form.
B. They cannot be used to create electricity.
C. They form quickly due to decaying biomass.
D. They require both sunlight and water to form.

Answers

The answer is A it takes a million of years to form

Fossils fuels take millions of years to form which are considered nonrenewable resources. So, the correct option is A.

What are Fossils fuels?

A fossil fuel is defined as a hydrocarbon-containing material which forms naturally in the earth's crust from the remains of dead plants and animals that is extracted and burned as fuel where as the main fossil fuels are coal, oil and natural gas.

Fossil energy sources include oil, coal and natural gas, are non-renewable resources that formed when prehistoric plants and animals died and were gradually buried by layers of rock. Fossils fuels take millions of years to form which are considered nonrenewable resources.

So, the correct option is A.

Learn more about Fossil fuels, here:

https://brainly.com/question/2029072

#SPJ7

The United States government does not allow travelers from foreign countries to bring plants, fruits, vegetables, animals, or other living organisms into this country. State one biological reason for keeping these out of the United States. ?

Answers

those plants, fruits or vegetables may contain parasites or harmful diseases

enzymes are macromolecular biological catalysts. enzymes accelerate chemical reactions. almost all metabolic processes in the cell need enzymes in order to occur at rates fast enough to sustain life. without them life on earth would probably not exist. identify two factors that can affect the structure and function of an enzyme and describe what causes the change to occur. course hero.

Answers

Answer:

Enzyme is a catalyst

Explanation:

Enzymes make the chemical reaction faster than usual because the activation energy required for a substance to react becomes low with presence of enzymes. if we don't have enzymes it may result to slow metabolic processes. some environmental factor can affect enzymes like over exposed to radiation can activate the enzyme causing it to disrupt. or consuming a mutagenic agents that may affect the enzymes activities.

Temperature, pH, and ionic concentrations each play an important role in the proper functioning of enzymes.

Answers

Answer:

fracture the skull

Explanation:

im guessing

this is a true statement. if the three are not at a stable quantity enzymes can not fonction correctly.

identify the kinds of support John will need through this chronic illness he is facing in his life?

Answers

Answer:

What chronic illness are you talking about?

Explanation:

When used together, perspective and color variation create what effect for the
viewer?
A. A psychological reaction
B. The illusion of depth on a flat surface
C. The illusion that a three-dimensional object is flat
D. Temporary blindness

Answers

B. The illusion of depth on a flat surface

Which are electrical "nodes" of the heart? Check

all that apply.

sinoatrial node

aortic node

lymph node

heart node

atrioventricular node

Answers

Answer:

sinoatrial node and atrioventricular node

Answer:

1. What is the proper name for the electrical system in the heart?

vascular electric system

heart pump circuit

conduction system

conductor system

2. Which are electrical “nodes” of the heart? Check all that apply.

sinoatrial node

aortic node

lymph node

heart node

atrioventricular node

Explanation:

100%

Crossing a BB parent with a bb parent results in

Answers

Answer:

All dominant allele children with the genotype Bb

Explanation:

Use a punnet square to see how. It's quite simple when u learn the logistics :)

Hope this Helps!

When the two parental genotypes BB and bb are crossed, the genotype of all [tex]F_1[/tex] plants is Bb.

What is Genotype?

An organism's genotype is defined as the complete set of genetic material that can also be used to refer to alleles or variants that occur in a particular gene or genetic locus.

The term "genotype" describes the genetic makeup of an organism as it describes the complete set of genes of an organism. This term can be used to refer to alleles, or variants of genes, carried by an organism.

When two organisms like BB parent crossed with bb parent, the offsprings that will produce is Bb.

Thus, when the two parental genotypes BB and bb are crossed, the genotype of all [tex]F_1[/tex] plants is Bb.

Learn more about Genotype, here:

https://brainly.com/question/29156144

#SPJ5

Precipitation that flows over the surface of the ground is called groundwater.
True or False

Answers

Answer:

true

Explanation:

Answer: true

Explanation:

In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravity from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail.

*i will mark you as brainliest*

Abyssal zones and coral reefs are two different types of ecological systems in the ocean. They vary in terms of their physical characteristics as well as in terms of the types and amounts of life they support.

Compare the geographic features of abyssal zones and coral reefs. What is it about coral reefs that allows them to support very diverse life forms and very large quantities of life? What is it about abyssal zones that allows them to support very diverse life forms but very small quantities of life? Explain the differences in the diversity and amount of life supported by abyssal zones and coral reefs with reference to their physical characteristics

Answers

Alright! So when comparing the geographic features of abyssal zones and coral reefs you wanna make sure your answers are diverse as possible, because I had this question in middle school and they Are two very different species. 1.) what makes coral reefs support very diverse life forms and very large quantities of life is the fact that coral reefs are often called the “rainforests of the sea” about 25% of the oceans fish depend on the coral reefs. The reason on why coral reefs are so diverse is by their color,shape, and the way they help marine life! To elaborate more, all different kinds of fish depend on the healthy coral reefs because fish take shelter, the reproduce, and find food! They also support very large quantities from life, it ties in with diversity! Without the coral reefs in our oceans, many fish would probably die off. Now abyssal zones! How do they support very diverse life forms but very small quantities of life? Okay so the abyssal zone is the deepest layer of the ocean near the sea floor! Very scary and some of the most unique fish and marine life are down there! The abyssal zones doesn’t support large quantities of life because it’s literally the darkest part of the ocean, meaning that it receives no sun light what so ever, mostly any marine animal down there would most likely be blind naturally! Not many common or rare fish go down there, they stay close the the top of the ocean because of sunlight, so it would be almost deadly for a regular of rare fish to go down in the depths of the ocean where it’s pitch black dark! Now the diverse life forms down in the abyssal zone consist of many different kinds of marine animals! Some even undiscovered by humans! They have a very unique and diverse marine life down there, but mostly they are all blind because of the natural darkness at the abyssal zone! So physical characteristics of the abyssal zone and coral reefs! They are two opposite ends of the spectrum in this scenario! So coral reefs are bright and colorful and very unique in their shape! And the abyssal zone is very very dark and creepy. The difference in diversity between and amount of life supported between the two is that the abyssal zone consists of very strange and unique marine animals, some may even say creepy, and coral reefs support fish you and I are common too! Even some rare fish but they support more life than the abyssal zone! I hope this helps!!

.Specific processes must take place within the cell for protein synthesis to occur. The processes that take place within a cell for protein synthesis to occur. Which occurs during translation but not during transcription? A DNA template is used to create an mRNA strand. A tRNA template is used to create a DNA strand. A tRNA template is used to create an mRNA strand. An mRNA template is used to create an amino acid chain.

Answers

Answer:

An mRNA template is used to create an amino acid chain.

Explanation:

Transcription is the first step in the protein synthesis process. Translation is the second.

Overall, the central dogma of biology is DNA->RNA->protein.

Transcription is that first step, DNA to RNA, and translation is RNA to protein: think of it like nucleic acids can just be transcribed, but nucleic acid to protein is like a whole different language, so it has to be translated. So the correct answer here is that mRNA is used to make amino acid chain (aka protein), which happens only in translation.

Other Questions
Read the excerpt from Thomas Paines work The Crisis No. 1. Britain, with an army to enforce her tyranny, has declared that she has a right (not only to TAX) but to BIND us in ALL CASES WHATSOEVER, and if being bound in that manner, is not slavery, then is there not such a thing as slavery upon earth. . . . . . . Neither have I so much of the infidel in me, as to suppose that He has relinquished the government of the world, and given us up to the care of devils; and as I do not, I cannot see on what grounds the king of Britain can look up to heaven for help against us: a common murderer, a highwayman, or a house-breaker, has as good a pretence as he. What is the denotation of the word bound in this excerpt? trapped connected depended aided Jesus grew up in a world anxiously awaiting a messiah. Why was Jesus considered a radical and unexpected herald of the "Kingdom of God"? Question 1 (1 point)A study examining the percentage of children age 3-5 who are enrolled in preschool is an example of what researchapproach?ExperimentalQuasi-experimentalCorrelationalDescriptive Find the difference: sqrt20-sqrt80 How many neutrons are in one atom of the elemen, F-19? Please help me with the prompt Work out (410to the power of6) (210to the power of7) Give your answer in standard form. review the underlined sentences in the paragraph on page 4 from "3 men in a boat" What does a patent do?O A. Officially grants someone the right to use an inventionB. Officially sets up a monopolyC. Officially grants someone the right to a political officeO D. Officially breaks up a trust Mention 10 uses of basket Which of the following values are in the range of function graph below? check all that apply Please help with this question this is very easy! Riley has $60 and her brother has $120.Riley saves $7 per week.Write an equation that represents the number of weeks,x,it will take them to have the same amount of money? The unit of temperature is called fundamental unit. What is the smallest number by which you have to multiply the product 3 x 4 x 5 x 11 x 15 to geta perfect square number? * SOMEONE PLEASE HELP ME ASAP PLEASE!!! qu funcin tienen los signos de interrogacin y exclamacin, los parntesis y los dos What is the numerator for the simplified sum? In NOP, the measure of P=90, OP = 99 feet, and PN = 86 feet. Find the measure of N to the nearest degree. What does it mean for a worker to be "alienated from his product"? Why does this happen? As a reminder, explanations have to be in your own words. This answer should be at least five sentences; the fact that workers are alienated from the product of their labor is the main point of the Marx reading.