1. MATCHING: Match the correct geological era with the items listed below. Choices will be used more than once. 1. The first one-celled organisms (microscopic life) appear a. Mesozoic Era b. Precambrian Era 2. Age of the oldest rocks c. Cenozoic Era 3. The "Age of Reptiles" d. Paleozoic Era 4. This era lasted nearly 4 billion years 5. This era started 248 million years ago 6. Dinosaurs became extinct 7. The "Age of Mammals" 8. The first land animals appear​

Answers

Answer 1

Answer:

3 = c

4= a

5= b

7= d

Explanation:

i already did this and got these

ones correct hope it helps


Related Questions

Which statement accurately describes how genetic information is transferred during meiosis?


Meiosis creates four daughter cells that have half the number of chromosomes that are present in the parent cells.


Meiosis creates two daughter cells that have half the number of chromosomes that are present in the parent cells.


Meiosis creates four daughter cells that have identical genetic information to the parent cells.


Meiosis creates two daughter cells that have identical genetic information to the parent cells.

Answers

Search I’m safari there is the answer I think

Meiosis is the reductional division which creates four daughter cells that have identical genetic information to the parent cells. Thus, the correct option is C.

What is Meiosis?

Meiosis is a special type of cell division which is also called as reductional division. This division takes place in the germ cells in sexually reproducing organisms which results into production of gametes, such as sperm or egg cells. Meiosis involves two rounds of division which ultimately result in the formation of four cells with only one copy of each chromosome or half genetic content.

Meiosis is divided into two divisions: Meiosis I and Meiosis II. In which, Meiosis II is similar to Mitosis and Meiosis I involves the reduction of genetic material to half.

Therefore, the correct option is C.

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What relationship exist between amino acid and protein?

Answers

Explanation:

When connected together by series of peptide bonds, amino acids form a polypeptide, another word for protein. The polypeptide will then fold into a specific conformation depending on other interactions (dashed lines) between its amino acid side chains.

Amino acids are the subunits or monomers of proteins i.e. proteins are made up of amino acids.

WHAT ARE PROTEINS?

Proteins are one of the four major biological molecules in nature. Proteins are polymeric compounds made up of long chains of structures called AMINO ACIDS.

Amino acids come together in a chemical reaction called CONDENSATION REACTION to form complex protein molecules. Each amino acid is linked to one another by a covalent bond called PEPTIDE BOND. Peptide bond is a kind of covalent bond that links two amino acids together. It forms between the amino group (-NH2) of one amino acid and carboxyl group (-COO) of another

Hence, amino acids are monomeric units of protein molecules.

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What builds up in static
electricity?
A. Electrons
B. Protons
C. Neutrons

Answers

Answer:

A. Electrons

Explanation:

A is the correct answer

If an IV has 4% salt, and the patient's cells have 6% salt are the patient's cells hypotonic, isotonic, or hypertonic compared to the IV?

Answers

Answer:

The correct answer is - hypertonic.

Explanation:

Hypertonic solution or the cells consist high concentration solutes in comparison to the other solution and in such cases, the water tends to move from hypertonic region to the hypotonic region.

In the given case the salt concentration which is solute in the patient's cells is higher 6% than the salt (solute) concentration of the given IV which is 4%, therefore, the patient's cell is hypertonic in comparison to IV.

please help its 6th grade science

Answers

Answer:

CAR C

Explanation:

I think

How does the movement of muscles attached to the ribcage and diaphragm initiate expiration?

The muscles relax, which which flattens the diaphragm and increases the volume of the chest cavity.
The muscles relax, which pulls the ribcage downward and decreases the volume of the chest cavity.
The lungs contract and push the air from the lungs.
The lungs relax and pull the air into the lungs.

Answers

Answer:

B

Explanation:

trust me my guy

Answer:

It's B I just took the quiz

Explanation:

Select all of the answers that apply.

Chemical weathering occurs by which of the following:

heat
oxidation
hydrolysis
dissolution
water
wind

Answers

Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.

Solution, carbonation, hydration, oxidation, and reduction are significant chemical weathering reactions, hence options B and C are correct.

What is chemical weathering?

Chemical weathering is the term used to explain how chemicals in rainfall alter the minerals in a rock. Rainwater becomes somewhat acidic as a result of the air's carbon dioxide being dissolved in it.

Weathering can result from an interaction between the minerals in the rock and precipitation.

Oxidation, hydrolysis, and carbonation are processes that take place during chemical weathering.

Therefore, hydrolysis is a reaction with water, carbonation is a reaction with CO₂ to generate a carbonate, and oxidation is a reaction with oxygen to form an oxide, hence options B and C are correct.

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Which of the following is a negative about the use of fertilizers in farming?
1. They can help clean bodies of water near a farm
2. They decrease crop yields
3. They are expensive
4. They can cure diseases

Answers

Answer:

they are expensive is the answer

Can two different species of fungi from two different genus' mutate into a new species? i just want to know if it's a possibility, and how gigantic or slim the chances are of it happening.

Answers

Answer:

Yes, it is possible.

Explanation:

In this case, I'm guessing you mean breeding.

If that's the case, they will form hybrids.

Between two different species, inter specific hybrids will be formed.

Between two different genus, intergeneric hybrids will be formed.

There's even rare cases of breeding between two families.

So while it is possible for different species and/or genus to breed and form new species, in interspecific breeding for instance, they will have features similar to the parents but turn out sterile.

So to answer your question, it is possible.

What alternate form of genes do nucleic acids have that allows them to offer variability?
allele
codon
nucleotide
chromosome

Answers

Answer:

(D): Codon

Explanation:

Got it right on edge! Have a good day <3

PLEASE HELP I WILL MARK BRAINALIST

Answers

Answer:

i think it is A

Explanation:

Answer:

it is for sure A

Explanation:

What kind of agriculture is primarily practiced in the dark-shaded areas on the map above? Shifting cultivation A Pastoral nomadism B Cattle ranching C Mediterranean D Plantation

Answers

Mediterranean is the kind of agriculture is primarily practiced in the dark-shaded areas.

What is Mediterranean Agriculture?

This type of Agriculture is mostly practiced in Europe and Asia and it comprises of four main aspects which are:

Orchard farmingViticultureCereal cultivationVegetable cultivation.

The dark shaded which is around the Europe and and Asian continent makes Mediterranean the most appropriate.

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What's the independent , dependent and control variable of the is experiment (bromothymol blue experiment)

Answers

Answer:

we can't tell you if you don't tell us what the experiment is regarding bromothymol blue

Which of these things travel using waves

1. Light
2. Soumd
3. Earthquakes
4. All of these ​

Answers

4.All of these
(This is the right answer)

Name some advantages and some disadvantages of overproduction of offspring

Answers

Uhhh sorry if I’m wrong but...
Some advantages are that if animals have a offspring then their population will increase and then if they were endangered they will have a bit more of their species.
Some disadvantages are that is they have offsprings some people will go after them which could lead to their species to getting threatened

can some one please confirm my answers please

Answers

Answer:

the answer above this is correct

Explanation:

(50pts) The evolution of the peppered moth over the last two hundred years has been studied in detail. Originally, the vast majority of peppered moths had light coloration. However, because of widespread pollution during the Industrial Revolution in England, the dark colored moths became much more common.

Question:

What specifically caused the shift in phenotype of the moths? Please explain in detail.

Answers

Answer:

The peppered moth is a temperate species of night-flying moth. Peppered moth evolution is an example of population genetics and natural selection and not artificial selection.

Explanation:

Answer:

The phenotype of the moth changed due to natural selection. During the Industrial Revolution, objects in England became a lot darker in color due to the settling of coal pollutants in the air. These light colored moths did not have good camouflage in this environment. Therefore, most of the light colored moths did not survive to reproduce. However, the dark colored moths had better camouflage, and were therefore more likely to survive and reproduce. This lead to a shift towards darker color moths, as they had a higher survival rate than the light colored moths.

S. If cells of onion peel and RBC are separately kept in hypotonic solution, what will take place? Explain the reason for your answer​

Answers

Answer:

Well for the onion peel, since its a plant cell...it shall gain water from the solution as it has a lower water potentail,and hence increase in size, becoming turgid and tight, with the cell wall exerting pressure to stop it from bursting.

For the RBC, its an animal cell, and shall also gain water, but since there is no cell wall to support it, it shall soon gain so much water that it shall burst becuase of the pressure, through lysis, and shall die.

Note, the plant cell does not die.

What type of mutation is shown in the DNA strand to the right given the original strand.



original - T A T G A C A A T ---> mutated strand - T A T C A C A A T

Group of answer choices

point mutation

deletion

insertion

translocation

Answers

the answer is insertion
Correct answer - Point mutation.

Why? - A point mutation or substitution is a genetic mutation where a SINGLE nucleotide base is changed, inserted or deleted from a DNA or RNA sequence of an organism's genome.

Why not Insertion - In genetics, an insertion (also called an insertion mutation) is the addition of one or more nucleotide base pairs into a DNA sequence. This can often happen in microsatellite regions due to the DNA polymerase slipping. ... On a chromosome level, an insertion refers to the insertion of a larger sequence into a chromosome. So, in short Insertion adds one nucleotide but not changes one nucleotide to another. Which is done by POINT MUTATION.

what are water and carbon dioxide in the cellular respiration reaction ​

Answers

Answer:

Explanation:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

Which of the following is a reason a cell may divide:

A- The cell has become damaged
B- The cell wants to divide
C- Both a and b
D- Neither a nor b

Answers

I think is the C , I need points

What determines the color of a rock?

Answers

Answer:

Rock color chart method

Explanation:

hope this helps

natural
combustion
photosynthesis
burning of
fossil fuels
animal
respiration
plant
respiration
Carbon Cycle
organic
carbon
decomposition
of organic waste
mineral carbon
nswered

Answers

Explanation:

hope this helps you I know every answer to fill in blanjs,they are all there.

If you are provided with some vegetables to cook. You generally add salt
into the vegetables during cooking process. After adding salt, vegetables
release water. What mechanism is responsible for this?​

Answers

Osmosis. Water flows towards the high concentration of salt.

Which provides most of the energy in ecosystems? Choose the correct answer.

O camivores

O producers

O generalists

O keystone species

Answers

Answer:

Producers.

Explanation:

Which of the following statements are true regarding cellular reproduction? Select all that apply.
When an organism grows, cellular reproduction creates new cells.
Organisms reproduce, so new cells are needed.
If cells become damaged, cellular reproduction can repair damaged cells.
Cellular reproduction helps organisms acquire water better, as there are more cells present.
Cellular reproduction is the exchange of homologous chromosome segments.

Answers

Replacing dead cells

Answer: Replacing dead cells

please answer quickly due soon

Answers

Nbddbdbbngentics are not y diff

Question 1 4 Eagles and grizzly bears live together in the same habitat. Which of the following situations would lead to eagles and grizzly bears competing for resources? O Grizzly bears hibernate during the winter while eagles remain active. O Pesticides in the fish population affect eagles' eggs and decrease their population. O Both grizzly bears and eagles feed on the same species of salmon. O Laws prevent humans from being able to hunt eagles or grizzly bears ​

Answers

Answer:

National Geographic Logo - HomeSKIP TO CONTENT

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ANIMALSPHOTO ARK

Grizzly bear

Grizzly bears once lived across much of western North America until European settlements and aggressive hunting eliminated most of the population.

PHOTOGRAPH BY JOEL SARTORE, NATIONAL GEOGRAPHIC PHOTO ARK

COMMON NAME: Grizzly bears

SCIENTIFIC NAME: Ursus arctos horribilis

TYPE: Mammals

DIET: Omnivore

AVERAGE LIFE SPAN IN THE WILD: 25 years

SIZE: Five to eight feet

WEIGHT: 800 pounds

SIZE RELATIVE TO A 6-FT MAN:

IUCN RED LIST STATUS:? Least concern

LC

NT

VU

EN

CR

EW

EX

LEAST CONCERN

EXTINCT

CURRENT POPULATION TREND: Stable

What is the grizzly bear?

The grizzly bear is a North American subspecies of the brown bear. Grizzlies are typically brown, though their fur can appear to be white-tipped, or grizzled, lending them their name. Grizzly bears are protected by law in the continental United States—not in Alaska—though there have been some controversial attempts to remove those protections in recent years.

Which best describes bio geographic isolation?

A- it always leads to the formation of new species
B- it cannot lead to evolution
C- it is a mechanism for evolution
D- it occurs only through geographical forces

Answers

Answer:

b

Explanation:

Answer:

D

Explanation:

Because it doesn't always lead to new species, it can still lead to evolution, it isn't necessarily a mechanism for evolution though.

Protozoans are important in the cycle of life because they break down ___________________.
its a science question

Answers

They break down nutrients, making them available for use
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