Which group of organisms evolved first?
Select one:

a.
fish

b.
reptiles

c.
amphibians

d.
mammals

Answers

Answer 1

Answer: c or a because they are water animals

Explanation:

Answer 2

Answer:

A - Fish; (took the test)

Explanation:

Fish evolved in the world's oceans more than 100 million years before reptiles, amphibians, or mammals


Related Questions


CELLS & CELL MEMBRANE
Which of the following is NOT a
eukaryotic organism?
A. A plant
B. An animal
C. A bacterium
D. A protist

Answers

Answer:

The answer is option C : a bacterium

glucose reaches each and every cell through the circulation of

Answers

Answer:

Glucose, or blood sugar, circulates through the body in the bloodstream. Simple sugars and starches are both carbohydrates, and both contain the molecule glucose, which is also called blood sugar. The circulatory system helps move glucose out of the digestive tract and into the body cells.

Write a testable hypothesis related to sunblock

Answers

I don’t k is Srry I need points

The protozoans are then grouped according to their means of...
a) obtaining energy
b) locomotion or movement
c) reproduction
d) none of the above

Answers

The answer for the problem is A because aren’t they are getting energy

Lelilani lives in Hawaii. Most of the rocks she collects for her science experiment are igneous. Why is this true?

Answers

Answer:

Igneous rocks form from the cooling and solidification of magma or lava. In Hawaii, there are volcanoes present, which produce magma and lava. Therefore, it makes sense as to why the rocks she collects are igneous.

Explanation:

igneous rocks come from molten rocks/metals. since hawaii is an active volcanos sights, the rocks are igneous

Which of the following best distinguishes why farmers are looking for fertilizer alternatives?

Farmers are realizing that fertilizer is harmful to the environment.
Farmers are looking for cheaper ways to make their crops grow quickly.
Farmers are trying to comply with regulations that prohibit fertilizer use.
Farmers are beginning to understand that phosphorus resources are quickly being depleted.

Answers

Answer:

Hm, I think farmers are looking for cheaper ways to make their crops grow quickly.

Explanation:

Answer:

farmers are looking for cheaper ways to make their crops grow quickly.

Explanation:

can you help me please?
what does DNA looks like? describe the structure of DNA?​

Answers

The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). A DNA molecule is composed of two strands

How would prescribing antibiotics affect someone with smallpox?

Answers

Answer:

Small Pox

Medical Condition

A deadly viral disease that has been completely eradicated.

How common is condition?

Extremely rare (Zero cases in US in 2015)

How is condition transmitted?

Transmitted through direct contact

Is condition preventable by vaccine?

Usually preventable by vaccine

Does diagnosis require lab test or imaging?

Requires lab test or imaging

Is condition treatable?

Treatments can help manage condition, no known cure

Time taken for recovery

Can last several days or weeks

Caused by infection with variola virus. Rashes on the face, hands and torso which form blisters and scabs which lead to formation of deep pitted scars. Smallpox has no cure; treatment involves managing symptoms.

Explanation:

Answer:

b

Explanation:

Which of the following describes soil and temperature in an ecosystem? *
biotic factors
unnecessary factors
abiotic factors
selection factors

Answers

Answer:

abiotic factors.

Explanation:

they are not living things

I think that would be the third one

Which statement about identical twins and fraternal twins is correct in regards to DNA?
A. Identical twins have different DNA, and fraternal twins have different DNA.
B. Fraternal twins share the exact same DNA, but identical twins do not.
C. Identical twins and fraternal twins share the exact same DNA.
D. Identical twins share the exact same DNA, but fraternal twins do not.

Answers

Answer:

D. Identical twins share the exact same DNA, but fraternal twins do not.

Explanation:

Identical twins are the twins formed from one egg provided by their mother and one sperm provided by their father. In contrast, fraternal twins are formed from two different sperms and two different eggs from the same father and mother.

Due to the fact that identical twins are as a result of one fertilized egg dividing into two, they share the same exact DNA. On the other hand, fraternal twins do not share the same exact DNA because they are formed from separate eggs and separate sperms.

Answer:

d

Explanation:

just took test

The most recent fossil discoveries have filled in many of the gaps in the evolution of birds from dinosaurs. Before the latest fossils were found, there were some scientists who questioned the idea that birds evolved from dinosaurs. In general, scientists constantly work to

Answers

Answer:

can you add a picture ?

Use the picture below to help you answer the question.

A car leaves Harrisburg, PA and travels West on the turnpike. How far has the car gone in 4 hours?
Question 21 options:
A.50 km
B.70 km
C.35 km
D.0 Km

Answers

Answer: B. 70 km

Explanation:

the answer is in the graph....

the line same point at 4hrs= 70km

-_-

do u go to k12?

Distance is a measure of how much ground has been covered by an object in motion. The object has been covered 70 km of distance in 4 hours. Option B is correct.

What is Distance?It is a measure of how much ground has been covered by an object in motion.Distance is directly proportional to the speed of the object.

Displacement:It is a vector quantity that refers to the overall change in position of the object.It is defined as the straight line distance between the initial and final position of the object.

Therefore, the object has been covered 70 km of distance in 4 hours.

Learn more about Displacement:

https://brainly.com/question/10919017

Please help What type of cells have a nucleus?
a Prokaryotes
b Eukaryotes
C Bacteria
d Viruses

Answers

Only eukaryotes have a nucleus

Answer:

Cells that have more than one nucleus are called eukaryotic cells.

The answer is B

What would happen if you killed off one of the secondary consumers in your food web?

Answers

Answer:

Shut it down lol

Explanation:

lol

Answer: The rest of the chain would die.

Explanation: the food chain all depend on each other so if one chain falls the rest fall like a domino effect.

:-) :-) :-) :-) :-) :-) :-) :-) :-)
Please help

Answers

Answer:

Explanation:

playing a game today just keeep it on gottttttttt

What is the locomotory structure of yeast​

Answers

Answer:

Yeast cell structure

Each yeast cell has a distinct cell wall enclosing granular cytoplasm, within which can be seen a large vacoule and a nucleus (Fig. 214). The vacuole varies much in size according to the state of activity of the cell.

Yeast contains almost the same organelles of a mature eukaryotic cell. Nucleus, Golgi apparatus, mitochondria, endoplasmic reticulum, vacuole, and cytoskeleton are the most important one. Yeast cell particle size is typically of 5×10μm.

Explanation:

Yet, we don't always think of yeast as something remarkable. Instead, it's often perceived as plain or dull—a single-celled organism that, like a plant, lacks the ability to move on its own accord.

what is one possible combination that can be found in the gamete formed by an individual with the genotype AaBB?

Answers

Answer:

(Ba) and (BA)

Explanation: those could be one of the combinations if u put them on a punnet square

Which sequence represents matter from which heat is being removed?

Answers

Answer:

D

Explanation:

Trust me I did the test

3. Four alleles determine if a rabbit is white, brown, or gray. This is an example
of


Answers

Answer:

Principle Condominance

which one helps inprove air quality

Answers

carpooling with several people, i would assume

the second option since a carpool would decrease the number of cars, and the amount of pollutants produced by cars imagine if 5 people went in the same car compared to 5 people going in 5 different cars

Below is the chemical formula for the substance sucrose (Sugar). How
many different elements (types of atoms) make up sugar?*
С6H12O6
Sugar

Answers

Answer:

Sugar is made up of 6 Carbon, 12 Hydrogen, and 6 Oxygen.

So three different elements make up sugar.

Which characteristic listed below is most unique to plants?
Select one:

a.
Plants are heterotrophs.

b.
Plants undergo photosynthesis.

c.
Plants are multi-cellular.

d.
Plants are composed of eukaryotic cells.

Answers

Answer:

Plants are composed of eukaryotic cells.

Explanation:

Eukaryotic cells (as opposed to prokaryotic cells) have internal, membrane-bound organelles and a distinct nucleus that physically separates the genetic material of the cell from the all of the other parts of the cell. All protists, fungi, plants, and animals are composed of eukaryotic cells.

The characteristic that is most unique to plants is that they undergo the process of photosynthesis. Thus, the correct option for this question is B.

What is Photosynthesis?

Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.

The complete reaction of photosynthesis is as follows:

[tex]6CO_2+12H_2O[/tex] → [tex]C_6H_1_2O_6+6O_2+6H_2O.[/tex]

Plants are eukaryotic in nature and have a double membrane cell organelle that is known as Chloroplast. These cell organelles have a green-colored pigment known as chlorophyll that captures the sunlight and converts it into chemical form and accomplishes the process of photosynthesis.

Therefore, the characteristic that is most unique to plants is that they undergo the process of photosynthesis. Thus, the correct option for this question is B.

To learn more about Photosynthesis, refer to the link:

https://brainly.com/question/26568636

#SPJ2

In a paragraph how is diabetes a problem to young people?

Answers

Answer:

Coca cola

Explanation:

Answer:

Explanation:

People living with type 1 diabetes must inject insulin regularly, as must some people with type 2 diabetes. Many people with type 2 diabetes can manage their condition with careful diet, exercise and regular testing.

Until recently almost all children and teenagers with diabetes had type 1, but now younger people are getting type 2 diabetes due to increasing rates of obesity and being overweight.

To summarize what you have learned about transcription, explain how a gene directs the synthesis of an mRNA molecule. Include in your explanation the words and phrases: base-pairing rules, complementary nucleotides, DNA, gene, mRNA, nucleotide, nucleus, and RNA polymerase

Answers

Answer:

Please find a detailed explanation of the process below

Explanation:

Transcription is the first stage of gene expression in living organisms in which a DNA sequence is used to synthesize a mRNA molecule. This process, which occurs in the NUCLEUS of eukaryotes and cytoplasm of prokaryotes, is catalyzed by an enzyme called RNA POLYMERASE.

- In the initial stage called INITIATION, RNA polymerase binds to the promoter of GENE and starts to unwind the double strand of the DNA sequence.

- The RNA polymerase, then, begins to add complementary NUCLEOTIDE bases following the COMPLEMENTARY BASE PAIRING RULE, which states that Adenine will pair with Thymine (Uracil in RNA) while Guanine will pair with Cytosine i.e. T-A, A-U, G-C etc. This stage is called ELONGATION.

- The last stage called TERMINATION involves the stopping of the process because the RNA polymerase has encountered a termination signal.

Select the correct answer from each drop-down menu.

Augustine is writing an essay on stem cells. Help him by completing the sentences.

Stem cells have the ability to divide

and produce unspecified cells. They can be developed into a required tissue because of their ability of

.

Answers

Answer:

Stem cells have the ability to divide through mitosis and produce unspecified cells. Stem cells can be developed into a required tissue because of their ability of differentiation.

Explanation:

A stem cell is a cell that is in an undifferentiated state. This means that it has not specialized in a specific type that carries out a specific function of that tissue, which does not imply that stem cells do not have their own function. The concept of stem cell is due to the ability to originate specialized cells from one or more tissues, depending on the degree of potency or plasticity it has. They are found in all multicellular living organisms. Their main characteristic is that by reproducing through the process of mitosis (they divide into two cells) they can form more stem cells or differentiate, that is, they become specialized cells, in such a way that they are essential for the renewal of cells in different tissues. and to repair them.

Stem cells have the ability to divide through mitosis and produce unspecified cells. They can be developed into a required tissue because of their ability of differentiation.

Stem cells are a special type of cell that may develop into a variety of specialized cells inside the body. They have the ability to differentiate into more specialized cells through the process of mitotic activity (mitosis) and perform restorative and regenerative roles.

Stem cells have significant and potential treatment for a variety of diseases due to their capacity to repair, regenerate, and grow into certain specialized cell types.

For example, bone marrow transplantation for people suffering with sickle cell disease.

Learn more about stem cells here:

https://brainly.com/question/10331724

10 POINS Q: The following methods will melt an ice cube quickly, EXCEPT
A. put it in an insulating container
B. hold it in your hand and change hands when one hand gets cold
C. put it a glass of room temperature water
D. break it into pieces and warm up the pieces

Answers

Answer:i think it C srry if im wrong

Explanation:

Answer: It’s A

Explanation:

It you hold the cube in your hand it will melt because of the body heat. If you break the pieces and warm them up, it will melt. If you put it in a glass of room temperature water, the water would absorb the cold and it will melt. But if you put it in an insulated container, it will keep the cold in hence it will not melt the fast.

Ples Help!!! What are the causes of long term climate change?

Answers

Answer:

Carbon dioxide is the main cause of human-induced climate change. It stays in the atmosphere for a very long time. Other greenhouse gases, such as nitrous oxide, stay in the atmosphere for a longtime. Other substances only produceshort-term effects.

Burning fossil fuels like coal, oil, and gas for electricity, heat, and transportation.
Deforestation.
Industrial processes.
Livestock production.
Agriculture.
Waste and food waste.

Why were forests harvested without regard for the consequences for so long?
O No one thought they would be around long enough to worry about running out
O The forests were always regrowing.
O People developed back-up plans for when the forests would be depleted.
O They were viewed as an unlimited supply of wood.

Answers

Answer:they were viewed as an unlimited supply

Explanation:

I just took the test

Answer:D they were viewed as an unlimited supply of wood

Explanation:

Name the process in plants that make glucose?

Answers

plants use sunlight, water, and the gases in the air to make glucose, which is a form of sugar that plants need to survive. This process is called photosynthesis

The process in plants that makes glucose is photosynthesis

if you had a cube that was 6 cm in length and height l, what would be the length and volume be?

Answers

The length would be 6 cm because it’s a cube so all the sides must be equal

Six to the third power is 216 so that would be the volume
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