Which of the following organisms have existed on Earth for the longest period of time?
O single-celled organisms
O multicellular organisms
O dinosaurs
O mammals

Answers

Answer 1

Answer:

single-celled organisms

Explanation:

Answer 2

Answer:

cyanobacteria.. single celled organisms


Related Questions

How did horses change as they evolved over the past 50 million years?


A. Horses used to have four distinct digits.
B. Horses used to be bigger.
C. Horses used to have no distinct digits.
D. Horses used to have very long teeth.

Answers

Answer:

B

Explanation:

The answer should be b

I neeeeed helppp plz

Answers

Answer:

amino acids

Explanation:

Answer:

amino acid

Explanation:

how a Doppler radar system works?

Answers

Answer:A Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. It does this by bouncing a microwave signal off a desired target and analyzing how the object's motion has altered the frequency of the returned signal.

Explanation:

Which is currently the most supported theory about the future of the universe?

The universe could remain exactly as it is today.
The universe may continue to expand.
Stars could burn out, causing the universe to become dark and cold.
Gravity could pull galaxies back together, causing a reverse of the big bang.

Answers

Answer:

mostly likely its that the universe may continue to expand

reason: Its a theory called the Big Bang theory that basically tells us about the existence of the universe and how it has formed things in our universe such as galaxies and is still expanding today also it's a Law called Hubble Law that says the greater the distance of a galaxy from us the faster it recedes which also shows proof of universe expansion

The universe may continue to expand, Stars could burn out, causing the universe to become dark and cold.

What is Hubble law?

The Hubble law states that as the distance to galaxies increases, the apparent recessional velocity increases. This law shows the expansion of the universe.

The supported theory of future of the universe?

The supported theory is, the universe may continue to expand, Stars could burn out, causing the universe to become dark and cold.

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A student read the following description of San Francisco: has cool summers, warm winters, and not much rain. What information does this description best provide?

A. The general climate of San Francisco during the year.

B. The weather on a specific day.

C. A description on how San Francisco’s climate has changed over 30 years.

D. A forest of what the weather will be tomorrow.

Answers

Answer:

A

Explanation:

Answer:

A

Explanation:

it talks about all the seasons

Scientists found a strange blob, buried under lots of dirt and rock. They had to decide whether this blob is a
living or nonliving thing. What would be a good way to find out?
Melt it and see if it goes through a physical or chemical change
Test it in a lab to find out what atoms it is made of
Look at it under a microscope and look for cells
Poke at it with a stick to see if it moves

Answers

Answer:Look at it under a microscope and look for cells

Explanation:

Several members of the Fitzsimmons family have polydactyly, and they differ in their numbers of extra fingers and toes. Yet, certain relatives who should have extra digits don't, such as Megan Fitzsimmons. She has two children, a son with two extra fingers and a daughter with an extra toe, and her father has an extra digit on each hand and foot. Polydactyly in this family is Group of answer choices variably expressive and incompletely penetrant. pleiotropic and a phenocopy. invariably expressive and completely penetrant. dominant and recessive.

Answers

Answer:

variably expressive and incompletely penetrant

Explanation:

Polydactyly is a genetic disorder characterized by limb malformation (i.e., supernumerary digits). Polydactyly is a genetically complex trait influenced by different factors, including, among others, epigenetic factors, environmental factors, regulatory genomic sequences (enhancers and/or suppressors), etc. The variable expressivity of this trait is caused by the combination of these factors. Incomplete penetrance refers to the fact that the trait is expressed in only some individuals having the genetic predisposition for this condition.

What does the picture show about evolution

Answers

F is the correct answer I think

What is the mRNA code transcribed from the following DNA segment:
DNA segment ---TAC-ATG-GTC-AAC-ATC

Answers

Answer:

AUG UAC CAG UUG

Explanation:

Using the sequence of DNA bases below, give the proper tRNA anticodons involved in protein synthesis.

TTAAGC

Answers

Answer:

AAUUCG is the mRNA's sequence and the codons are AAU and UCG. So the anticodons are complementary:

UUA and AGC

These are the anticodons

Note: Thymine is substituted with uracile in RNA

CAN SOMEONE HELPP?????????

Answers

Answer:

ok I don't know if my ur office is not good at all but can you tell me these things

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What is a characteristic of a biome?
What are some examples of a biome?
What are some non-examples of a biome?

Answers

Answer:

1.Biomes are large-scale environments that are distinguished by characteristic temperature ranges and amounts of precipitation.

2.There are five major types of biomes: aquatic, grassland, forest, desert, and tundra, though some of these biomes can be further divided into more specific categories, such as freshwater, marine, savanna, tropical rainforest, temperate rainforest, and taiga.

3.Non examples of biome include houses, furniture, vehicles, trains, factories, pencils etc.

Which factor is a major difference between weather and climate?

A. Time

B. Sustainability

C. Location

D. Impact

Answers

A. Time

Weather reflects short-term conditions of the atmosphere while climate is the average daily weather for an extended period of time at a certain location. ... Weather can change from minute-to-minute, hour-to-hour, day-to-day, and season-to-season. Climate, is the average of weather over time and space.

Guys please help me.......

Answers

Answer: b exocytosis

Sort the descriptions or examples into inherited or somatic mutations.

Answers

inherited Mutation

exists in all the cells of the bodytransferred via egg and sperm cells

Somatic Mutation

skin cancer caused by UV exposurenot passed on to offspringfound only in a specific cell type

what are Somatic Mutation and Inherited Mutation?

Mutations that a person inherits from their parents are called hereditary mutations. they're found in all body cells and may be passed down to new generations. acquired mutations occur during an individual's life.

A somatic mutation is a change within the DNA sequence of a somatic cell of a multicellular organism with dedicated reproductive cells; this is, any mutation that takes place in a cell other than a gamete, germ cell, or gametocyte.

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Why do tropical rainforests have more species than all other biomes?

Answers

Answer:

Rainforests have an abundance of plants and animals for the following reasons: Climate: because rainforests are located in tropical regions, they receive a lot of sunlight. ... Since there is a lot of sunlight, there is a lot of energy in the rainforest. This energy is stored in plant vegetation, which is eaten by animals.

Explanation:

Which of the following is not a recognized domain of the classification of living things?
A. Archaea
B. Protists
C. Bacteria
D. Eukarya

Answers

the answer is b the protists

Fossils
.......... do fossils not support the theory of continental drift ​

Answers

Fossils do support the theory of continental drift because they showed up on shores of other continents, and that made the possibility that continents were once attached.

what might happen if the hypothalamus malfunctions and stop sending chemical signals to the pituitary?​

Answers

Answer:

If the hypothalamus malfunctions and stops sending chemical signals to the pituitary, hormones may not be released by the pituitary.

Materials move through vascular tissue by a combination of factors, including transpiration and gravity. If non-vascular plants do not have xylem and phloem, which process moves materials throughout the plant?

a. Osmosis and diffusion

b. Transpiration

c. Pollination

d. Evaporation and cyclosis

Answers

Answer:

A: Osmosis and diffusion

Explanation:

Answer:

A. Osmosis and diffusion

Explanation:

I took the test and it was correct.

what type of energy is represented by part number 1​

Answers

Sunlight or Solar Radiation

The type of energy that is represented by part number 1 is sunlight or solar energy.

What is solar energy?

The sun is one of the most significant energy sources. Most of the energy on earth comes from the sun, which is where it all began.

The sun's energy warms the planet, generates wind and weather, and keeps plant and animal life alive. There are waves of various frequencies and wavelengths throughout the electromagnetic spectrum. On the surface of the Earth, the Sun serves as the primary energy source.

It functions like a powerhouse, producing and releasing energy in the form of heat and light. Solar energy is the name for this energy that the sun continuously emits.

Therefore, Sunlight or solar energy is the sort of energy that component number 1 stands for.

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Describe the region or states affected by the occluded front?

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Answers

The state that affected by the occluded front is nyc

Answer:

Kansas, Ohio, Indiana, & Michigan

Explanation: Wind changes direction as the front passes and the temperature is mixed either warm or cool on these regions.

Which part of aerobic respiration takes place between the membranes of the mitochondria?
electron transport chain
lactic acid fermentation
glycolysis
Krebs cycle

Answers

Answer:

it's the electron transport chain

Hurry!!!!!!!
5. Before the Industrial Revolution took place in England, the gypsy moth was light gray. The factories produced a lot of pollution, and
the bark on the trees in the moths' habitat became dark gray. The gypsy moth could no longer camouflage itself. Use your knowledge
of natural selection to explain how you think the gypsy moth evolved.

Answers

Answer:

here

Explanation:

Through natural selection only the dark grey moths evolved. The trees became covered in dark soot from the factories causing the lighter moths to stand out and be seen easier by predators. The dark grey moths were able to camouflaged better with the soot causing them to be less noticeable to predators and have higher population numbers.

Can someone please help me!

Answers

The answer is binary fission (A). This is because prokaryotes reproduce asexually through binary fission.

When is the possibility of solar weather affecting terrestrial weather the highest?

A. during solar minimum
B. during the solar cycle
C. during solar maximum
D. during Total Solar Irradiance

Answers

The answer is during solar maximum

Hope it helps
Stay home stay safe dear



Ans once again ; during solar maximum

Solar maximum is the peak when the sun's activity and its effect on terrestrial weather will be maximum. Thus, option C is correct.

What is solar maximum?

Solar maximum is referred as the highest activity exhibited by the sun during its solar cycle of eleven years.

Solar maximum is an outcome of sun's magnetic poles that produces greater solar eruptions. The large number of sun spots are found as a result.

These sun spots are rich in energy and thus contributes to greater activity of the sun.

Higher the activity of the sun, higher will be its effect on terrestrial weather as sun is the main source of energy for terrestrial life.

Opposite to solar maximum is solar minimum when the activity of the sun is lowered due to reduced sun spots.

Sun storms are the example of solar maximum.

Thus, solar maximum and solar minimum are the important part of solar cycle.

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Each virus has a basic structure to it. Which of the following is NOT one of those basic structures?
A.Membrane envelope
B.Capsid (Protein coat)
C.Carbohydrate strands on the outside
D.Genetic material (DNA/RNA)

Answers

Answer:

D. Genetic material (DNA/RNA)

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What is a complementary RNA strand to TAG?

Answers

Answer:

It's AUC.

Thymine is substituted by Uracile in RNA and it's complementary to Adenine. Citosine is complementary to Guanine

One support of the behavioral perspective is that it is backed by strong and extensive research.
true or false
PSYCHOLOGY

Answers

Answer:

  True

Explanation:

Edge 2021

The statement-One support of the behavioral perspective is that it is backed by strong and extensive research is True.

What is behavioral perspective?

The behavioral perspective is a psychological approach that focuses on observable behavior, rather than internal mental processes, as the key to understanding and predicting human behavior.

The behavioral perspective in psychology is based on the belief that behaviors are learned through the environment. This perspective has been extensively researched in the laboratory and in real-world settings, and the findings of this research have been consistently replicated over time.

Overall, the behavioral perspective is backed by a wealth of empirical evidence and has a strong track record of producing practical applications in both research and clinical settings. Therefore, the given statement is True.

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What happens at the end of the Calvin cycle?

Answers

Explanation:

At the end of the regeneration, the net gain of the set of reaction is one G3P molecule per 3 carbon dioxide molecule's.

The final product of the Calvin cycle is glucose.
As per the internet
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