Which of these is least likely to show common ancestry?
A. homologous structures
B. analogous structures
C. DNA
D. vestigial structures

Answers

Answer 1
D. Vestigial structures

Related Questions

Use the following diagram to answer the question.
What part of the respiratory system is labeled 4?

1 lung
2 diaphragm
3 nasal cavity
4 trachea

Answers

The answer is a lol your welcome
ANSWER : 1 lung

EXPLANATION :

ASAP LIKE RIGHT NOW PLEASE
Explain what happens to the amplitude of a wave when the energy to produce it is increased. in easy words

Answers

I think the amplitude of a wave increases when the energy increases. I hope that helps!

How would you label the molecules shown in the sample above? ( A is wrong )
a. Sample A is cooler. Sample B is hotter.
b. Sample A is hotter. Sample B is cooler.
c. Samples A and B are the same temperature.

Answers

sample a is hotter sample b is cooler
it is b, sample a is hotter because the balls are not stagnant as they are moving around in the picture

The following table shows the distance from the sun of some unknown planets of equal mass.

W 1.5 AU
X 0.723 AU

Which of the following best explains which planet revolves at a faster speed?
A.) Planet X, because the sun pulls it with a greater force.
B.) Planet W, because the sun pulls it with a greater force.
C.) Planet W, because the gravitational force is weakened by distance.
D.) Planet X, because the gravitational force is strengthened by distance.

Answers

I think that the correct answer is A

Answer:

Option D.) Planet X, because the gravitational force is strengthened by distance.

Explanation:

As we know from Kepler's law , the planets that are closer to the sun move at a faster rate in comparison to those planets that are far because of high gravitational force.

According to the question,

both planets have equal mass. Plant W is at 1.5 AU and planet X is at 0.723 AU distance from the sun.

So, planet X revolves at a faster speed because it's shorter distance from the sum as comparison to planet W, strengthened the gravitational field.

Thus, Option D is the correct answer.

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PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
all I need you to do its to type out these pictures word for word it pretty simple

Answers

Answer:

Threatened Species: A threatened species is a species at risk but not yet endangered. California sea otters were classififed as a threatened species. Laws were passed to protect the otters and now they have increased their population size.

Invasive Species: One of the main causes of extinction and endangered species is the introduction of an exotic species. New exotic species are called invasive species. Invasive species can disrupt food chains, carry disease, prey on native species directly, and out-compete native species for limited resources, like food.

Extinction: If a population decreases too much in numbers, they disappear. Extinct species mean that the species has died out and no individuals left. An example of extinction: New Zealand was once home to a bird called the Giant Moa. Humans settled as their population increased the Moa population decreased. The species is now extinct.

Explanation:

Please Help
Compare Earth 4 billion years ago to Earth 550 million years ago.

Answers

the earth 4 billion years ago was separated, there was very little land in the northern hemisphere. the further most part of today’s (550 million years ago) continents were in the southern (lower part) of earth.

hope this helps! have a great day! ❤️

Find the average kinetic energy of the molecules shown in the sample above. ( A and C is wrong )

a. 36
b. 4
c. 3
d. 5

Answers

d i think sorry if i’m wrong

Answer: d

Explanation:

Explain the flow of energy in the food chain and why stored energy is an important concept of it.

Answers

Answer:

"The process of transfer of energy to various trophic level of food chain is known as flow of energy. Energy flow in ecosystem from energy source to autotrophs to heterotrophs."

Explanation:

The energy flow from the primary members, plants  to the other level of organism in food chain. Storage of energy is very important because, the stored energy in plants are distributing to all other levels in food chain and utilizing for activities.

What is energy distribution in food chain ?

The sun is the main source of energy for practically all ecosystems on earth. Energy moves from one trophic level of the food chain, to the next as primary producers take energy from the sun to make their own food in the form of glucose.

Primary producers are then consumed by primary consumers, who are in turn eaten by secondary consumers, and so on. The sun is the main source of energy for practically all ecosystems on earth.

Energy moves from one trophic level, or level of the food chain, to the next as primary producers take energy from the sun to make their own food in the form of glucose. Only 10% of energy is distributed to the other level and 90% are lost to the surroundings.

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Adjustment to environmental conditions is known as
A. Adaptation
B. Darwinism
C. Evolution
D. Natural Selection

Answers

Answer:

A.

Explanation:

Adjust = Adapt if that makes sense.

It’s A Let me know if you want an explanation!

I will mark brainlist for best answer!
Write a full paragraph about:
What causes changes in ecosystems?

Answers

Causes changes in Ecosystems
Important direct drivers include habitat change, climate change, invasive species, overexploitation, and pollution. Most of the direct drivers of degradation in ecosystems and biodiversity currently remain constant or are growing in intensity in most ecosystems

I hope it helps.. if it doesn’t please comment I’ll post another answer..

Factors that change the ecosystems are called drivers.

There are direct and indirect drivers.

Direct drivers straightforwardly influence ecosystem process.

Indirect drivers operate more diffusely, By altering one or more direct drivers.

Some direct drivers:

Habitat change Climate change Pollution Invasive speciesOverexploitation

Some indirect drivers:

Population change Change in economic activity Sociopolitical factorsCultural factors Technological changes

sience question ....

Answers

Answer:

extended structure

Explanation:

Answer:

I think it is the third one too

Explanation:

How are cellular respiration and photosynthesis different? (4 points)

Cellular respiration assists breathing; photosynthesis aids pigmentation.

Cellular respiration breaks down glucose; photosynthesis creates glucose.

Cellular respiration creates glucose; photosynthesis breaks down glucose.

Cellular respiration releases oxygen; photosynthesis releases carbon dioxide.

Answers

Answer b, cellular and photosynthesis are reversible

Answer:

B. Cellular respiration breaks down glucose; photosynthesis creates glucose.

Explanation:

PLEASE HELP ILL GIVE BRAINLIST AND POINTS (I don’t mind how long it needs to be)

Answers

Answer:

When two or more atoms chemically bond together, they form a molecule. When molecules are made from two or more different kinds of atoms, the substances are called compounds. If molecules are made from only one kind of atom, the substances are elements.

Explanation:

gave an explanation in my answer XD anyway hope I helped. Have a good day!

Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.

Please mark brainliest

Short Question: What is Hydropower?

Answers

The use of flowing water to power a turbine to produce electrical energy

Answer:

Hydropower is energy in moving water.

Explanation:

I REALLY NEED HELP QUICKLY!!

Answers

Answer:

i think the answer is c

Explanation:

C) All of earth was once filled with water or ice

What did you observe happening in the cups?

Did a phase change or phase changes occur? If so, which one or ones?

Answers

I think it gets foggy in the cup i think but good luck!!
a phase change will occur , it will first become blurry due to water vapour evaporating and cool down to tiny water droplets when coming in contact with the plastic cup ( hope im right , its been awhile! )

The equator is at a latitude of 0°. Which latitude will have the warmest temperature?

A. 15°N

B. 20°S

C. 45°N

D. 70°S

Answers

Pretty sure it is 20
The answer is b 20

Hope this helps:)

In the process of precipitation, liquid water changes into water vapor and enters the atmosphere.
True or False?
:p

Answers

Answer:

true

Explanation:

Very true:)! Why does the sentence have to be so long

PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....
all I need you to do its to type out these pictures word for word it pretty simple

Answers

Resources affect populations
Living and nonliving things are both found within the same ecosystem. The living things require the non living things for survival.

Limiting Factors
Environmental factors, such as the amount of water, food, sunlight and temperature available, are limiting factors for a population.

A limiting factor is sometimes that restricts the size of a population. Limiting factors might affect the number of individuals in the ecosystem can support.

The amount of space affects a population’s size.

Available water, food, sunlight and temperature are all limiting factors.

Space is also a limiting factor.

If there are too few resources, populations may migrate to new areas.

Answer:

- The amount of space affects a population's size.

- Available water, food, sunlight and temperature are limiting factors

- Space is also a limiting factor.

- If there are too few resources, populations may migrate to new areas.

Limiting

Factors

- Environmental factors, such as the amount of water, food, sunlight and temperature available, are limiting factors for a population.

- A limiting factor is something that restricts the size of a population. Limiting factors might affect the number of individuals in the ecosystem can support.

Resources affect

populations

Living and nonliving things are both found within the same ecosystem. the living things require the non living things for survival.

(Please take note I fixed some of the incorrect grammar in these images. Such as 2 spaces in-between, or this -> "Number of individuals ithe ecosystem")

~ LadyBrain

How does weathering and erosion contribute to the cycling of earth's materials? (specifically rock/the geophere)​

Answers

Answer:

Erosion breaks rocks down further and then moves them.

what are u?
for example, I'm an extra fluffy fat cat marshmallow fluffy ball unicorn duck butterfly frog pony
wbu what are u?

Answers

Answer:

i am ur daddy

Explanation:

Answer:

IM ELMO IMA FREAK IMA ELMO

HAPPY 50 YEARS OF SUNNY DAYS BAAAA

Explanation:

I need help with these questions from 8th Grade science, Specifically Chemistry.
Answers should be detailed, 3-4 sentences.

List at least 3 different physical properties or changes of a substance.

List at least 3 different chemical properties or changes that a substance can experience.

EXPLAIN YOUR ANSWER! NO LINKS! PLEASE DON"T ANSWER JUST TO GET POINTS!
I will report your answer if you do any of those things.
Thx in advance!

Answers

Answer:

Physical properties of a substance can include color, temperature, and mass. These are physical properties because they can be measured without changing a substance's chemical identity. Chemical properties of a substance can include flammability, acidity, and reactivity. These are chemical properties because they can be measured only by changing a substance's chemical identity.

what is the function of tunnels and passageways in subsurface mining?
a. to reach mineral ore deep below the surface of the earth
b. to reach mineral ores on the surface of the earth
c. to drain underground lakes where minerals are found
d. to create strip mines and quarries below the surface of the earth

Answers

The answer is D because they would have to make quarries just below the surface to mine
Mineral ores much quicker (Quarries- a large hole/pit under ground used to get stone and minerals)

The function of tunnels and passageways in subsurface mining to drain underground lakes where minerals are found. option C is correct.

What is subsurface mining?

Subsurface mining is the process in which  mineral ores are too deep to extract at with this  mining techniques, subsurface mining methods are used .

An advantage and good thing  of subsurface mining is that it will not disturb land than surface mining it only disturbs less than one-tenth the surface amount of land as surface mining and the method.

Therefore, the function of tunnels and passageways in subsurface mining to drain underground lakes where minerals are found. option C is correct.

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What is a biodiversity hotspot (definition)? Explain

Answers

Answer:

A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation.

Explanation:

A Biodiversity Hotspot is an area containing a huge number of species, a large percentage of which are endemic.

helppp this easyyyyyyyyyyyyyy

Answers

Answer:

Circulatory System -

Nervous System

Respiratory System

muscular system

Help, please
I will mark the brainliest answer if right!

Answers

here's your answer dear friend❤❤

Please help me with these science questions

Answers

Answer: The wind erodes the earth by moving pieces of it every which way.

Explanation:

Every patch of air carries hundreds of thousands pieces of dirt sand and chunks of earth. When the wind changes course it will slowly pick up more and more and until an indent will form. This is also how sand dunes are made.

Answer:

If the wind constantly pushes a rock, eventually the sides will start eroding, and the wind will cause it to break and erode.

The blowing wind constantly changes the earths surface by moving rocks, and breaking them.

by the wind constantly pushing sand on top of each other in one place.

Explanation:

PLeAse hELP
Write a paragraph (5-8 complete sentences) using the prompt below:
An ecosystem has many living and nonliving things. Choose one producer, one consumer, and one decomposer. Explain how they work together.

Answers

Answer:

The producer is a plant. It produces vegetables and fruits for the consumer to eat. The consumer is an human. It eats the fruits and vegetables that came from the plant. Lastly the decomposer would be for example fungi. It breaks down dead plants and tree trunks. It helps the producer produce and the consumer comsume.

What is the chemical formula fructose

Answers

the chemical formula of fructose is C6H12O6

Can yall help w these. Please no links/spam

Answers

Answer:

sun

chloroplasts absorb

sugar light

plants phytoplanktin

Explanation:

Answer:

1. Sun

2. Chloroplasts, absorb

3.  sugar, light

4. plants, animals

Explanation:

Hope that helps

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