Homologous structures are assumed to: • Have different functions •Have the same evolutionary origin •Have the same function •Have different evolutionary origins

Answers

Answer 1

Answer:

Have the same evolutionary origin

Explanation:

Predicting the evolutionary relationship between organisms require certain structures, which are used as evidence. These structures can either be homologous or analogous.

Homologous structures are those structures of organisms that have a similar embryonic or evolutionary origin i.e. share common ancestors. For example, the wings of a bat and the arm of humans are homologous structures because they are found to be from the same evolutionary origin. Although, they appear different and perform different functions but using genetical means (DNA), they have been found to share a common ancestor.

On the other hand, analogous structures are structures that perform similar functions and are physically similar but they evolved from different evolutionary origins.

Related Questions

Two-thirds of an ant colony is crushed by an elephant herd. The population before the crushing was 50% red and 50% black, and after the crushing, it was 70% red and 30% black. Is this evolution and, if so, what mechanism of evolution occurred? *

Answers

Depends, this shows that there can be the presumption that fire black ants are more aggressive and tried to fend off their ant colony while the red ants could be more conservative towards aggression.

Which of the following does the endocrine system regulate?

Hormones
Reflexes
Respiration
Senses

Answers

Answer:

Hormone

Explanation:

Which of the following does the endocrine system regulate?

Answer:

The endocrine system regulates hormones.

Hope this helps!!!

which characterististic allows a gas to be compressed

Answers

Answer: Because there are large amounts of space between the gas particles

Answer:

"most of the volume of a gas is composed of the large amounts of empty space between the gas particles."

Explanation:

when you answer don't copy word from word!

PLEEASEEE HELPPPPP) Which of the following is the overall goal of all territorial behavior?

A. to maintain access to a particular type of environment

B. to impress mates in order to reproduce

c. to gain resources to increase success

d. to defend food sources for personal use

Answers

Answer: A or D, mostly D

Explanation: I say this because if they have something that's theirs, they are gonna mark their territory. just like a dog. They want other dogs ( other animals) to know that that's their domain. If it wrong please say so.

D is the answer territorial behaviour, in zoology, the methods by which an animal, or group of animals, protects its territory from incursions by others of its species. Territorial boundaries may be marked by sounds such as bird song, or scents such as pheromones secreted by the skin glands of many mammals.

Explain how deep currents form and move in the ocean.
Use complete sentences.
This is science 6th grade. Amplify.

Answers

Deep ocean currents are formed by a complex interplay of factors, including differences in water density, temperature, and salinity, as well as the circulation of water masses at depth. These currents play a critical role in regulating global climate patterns and supporting marine ecosystems, and are an important area of study for oceanographers and climate scientists.

Deep ocean currents are formed by differences in water density, which are usually caused by differences in temperature and salinity. The density of seawater increases as the temperature decreases and the salinity increases. This means that colder and saltier water is denser and sinks to the bottom of the ocean, while warmer and less salty water is less dense and rises to the surface.

These differences in water density set up a circulation pattern in the ocean known as thermohaline circulation. In this circulation, cold and dense water sinks in the polar regions and flows towards the equator, where it slowly rises to the surface. This creates a global conveyor belt of deep ocean currents that circulate water around the world's oceans.

The movement of deep ocean currents is also influenced by the Earth's rotation and the shape of the ocean basins. The Coriolis effect, which is caused by the Earth's rotation, deflects deep ocean currents to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The shape of the ocean basins also influences the movement of deep ocean currents, as currents tend to flow around the edges of the basins and are deflected by land masses and underwater ridges.

Overall, deep ocean currents are an important part of the global ocean circulation system and play a crucial role in regulating Earth's climate by transporting heat and nutrients around the world's oceans.

P.S - I didn't know if you wanted an essay

If you didn't just write the bolded sentences

How long does it take for one red blood cell to go round the body?
o 20 seconds
o 20 minutes
o 24 hours
o 24 minutes

Answers

Answer:

99% sire its 20 seconds

Explanation:

it takes 20 seconds

Xavier drew a diagram to compare the roles of oxygen and hydrogen in photosynthesis.

Which label belongs in the area marked X?

Enters plant as a part of water
Combines with carbon dioxide
Is released into air through stomata
Is stored in leaves for later use

Answers

Answer:

The corret answer is c

Explanation:

The answer is c ur welcome

Using the information in this photo, what can MOST LIKELY be learned about the rocks in the illustration?

Answers

Answer:

they're old and someone should probably make that wall they're using look better by filling in the holes with cement or somethin.

the rocks seem old because it has moss and dirt on it

Highly organized systems like living cells should have _____.

a. High energy

b. High entropy

c. Low entropy

d. Low energy

Answers

the answer is - (C ). Low entropy ! I got it right on my test

the answer is c, low entropy

How did the Industrial Revolution contribute to global climate change?
A. It led to an increased use of alternative fuels other than fossil fuels.
B. It led to an increased use of coal, oil, and other fossil fuels.
C. It led to the release of chemicals that destroyed the ozone layer.
D. It led to the development of nonrenewable sources of energy. (I think it's B. Please correct me if I'm wrong.)

Answers

Answer: You're right its b.

Explanation:

Human activity has rapidly increased the emission of greenhouse gases to the atmosphere. Since the start of the Industrial Revolution, in about 1750, human activities such as burning fossil fuels, including coal and oil, have increased greenhouse gas concentrations in our atmosphere.

answer for your question is B

50 POINTS!

Energy is transferred into the ecosystem when

1.when bacteria absorbs nitrogen from other organisms

2. dead organisms decay and form organic matter

3. rodent prey on invertebrates

4.plants grow from the soil

Answers

Answer:

Explanation:

Energy is transferred between organisms in food webs from producers to consumers.

The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.

Answer: between organisms in food webs from producers to consumers.

Explanation:

Help with True or False Cell Facts:

______ 1. All living organisms are made of cells.

______ 2. Most organisms have specialized cells that perform different functions.

______ 3. Most organisms have many types of cells.

______ 4. Most cells are easy to observe.

______ 5. Cells come in various shapes and sizes depending upon their function.

______ 6. Some organisms consist of a single cell.

______ 7. All organisms have organs and/or body systems.

______ 8. Cells combine to form organ systems, organ systems combine to form tissue, and tissues combine to form organs.

Answers

Answer:

1) true

2)false

3)true

4)false

5)true

6)true

7)true

8)true

Explanation:

I am not sure about this.

Answer:

1) true

2)false

3)true

4)false

5)true

6)true

7)true

8)true

Explanation:

i not sure if it is correct but this is what i got

Mosquitoes can have bigger or smaller body sizes. Two parents that have medium-sized bodies have offspring. One of their offspring has a small body, and one has a large body. How did the offspring end up with traits that are different from the traits of their parents? How did the gene combinations result in these traits?

Answers

Mosquitoes have different body size than their parents.
Explanation
It is seen that when parents genes combine together they form an offspring having half each of their parents genes although sometimes it is seen that the traits that parents carry are not carried by the offspring and they end up looking different from the parent genes.
The difference in genes of the offspring than the genes of the parent is due to the suppressed genes that the grandparents had which was not transferred in the next generation but was present and transferred to the third or fourth generation.
This means that the traits that offspring have might have been there in the genes of previous generations that were present earlier to their parents but just the transfer of genes happened in the generation where treats are showing.
Here the mosquito having a different body size than their parents body size is a trade that the parents previous generations were having and ended up passing the genes to the next generations skipping 1 or 2 generations in between.
to know more:
Genes that are involved in turning on or off the transcription of structural genes are- (a) redundant gene (b)operator gene. (C)regulatory gene. (d) polymorphic genes

The mosquitoes exhibit differential phenotypes because they produce distinct proteins. Different allele combinations can produce different proteins.

Phenotype can be defined as a consequence of the action of genetic factors and environmental factors that act together to shape the features of an organism.

The different variants of a gene called 'alleles' encode different proteins and therefore influence the phenotype of an organism.

These alleles are randomly passed from parents to offspring during fertilization, thereby generating genetically unique organisms.

In conclusion, the mosquitoes exhibit differential phenotypes because they produce distinct proteins. Different allele combinations can produce different proteins.

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I need help im so tired that I cant even think so PPPPPPPPLLLLLLLLZZZZZZ help

c) In the system you created in (a), give an example of a sudden change that would affect the stability of the system. Explain what may happen. (2 points)
Think of an example of a natural disaster or human-caused environmental change that could affect the animals you chose in part (a).
All the littering in the forests and in the lakes, oceans, and rivers can take. over

Answers

I would think of global warming. So many ways humans can change and make an impact in this world like using less gas, picking up trash, use less electricity, recycling etc. this can effect the stability of the system and can create less of a problem to global warming with storms. Tornados can wipe out farmland. That effects food, crops, and animals.

Fresh Water biomes include:

seas

lakes

rivers

fjords

swamps

bays

ponds

Answers

Answer:

lakes, rivers, ponds, and streams.

Explanation:

lakes, rivers, ponds

I need an answer with an explanation, please.
:)

Answers

The prediction of the blood genotypes of the child if parent is type o and the other parent is type a is total A genotype or half A and half O.
What is a blood genotype?
A blood genotype is the genetic makeup of the blood of a person.
Given that one parent is o and the other is a.
Type A = AA (homozygous dominant) or Ao (heterozygous Ao)
Type O = oo (homozygous recessive)
So if AA × oo = 100% Ao (type A)
If Ao × oo = 50% Ao (type A)
and 50% oo (Type O)
The standard table is attached of the cross between A and O.
So either all children will be total A genotype or half A and half O.
Thus, the prediction of the blood genotypes is total A genotype or half A and half O.

Identify two ways in which scientists know the physical characteristics of organisms change over time.

Answers

One of the ways scientists identify organisms changing over time is when multiple organisms change their appearance to match their current weather, such as when a tree loses it leaves, it appearance has changed. Another way scientists identify change is when organisms grow, there are many examples since every organisms grows at least a bit, such as a baby bird, to a full grown male sparrow, or when a baby, turns into an adult.
Really hoped this helps!

The two ways in which scientists know the physical characteristics of organisms change over time are by examining the fossil record and comparative anatomy of these organisms.

What is comparative anatomy?

One way where scientists know the physical characteristics of organisms has changed with time is through examining the fossil record. Fossils are the remains of organisms preserved in sedimentary rock over time.

The studying of fossils helps scientists to compare the physical characteristics of the organisms with modern organisms by observing the differences between them and the changes that occurred over time.

Another way is to go through comparative anatomy which involves comparing the physical structures of different organisms and identifying the similarities or differences in their anatomy that helps scientists to identify the changes and how these changes have affected these organisms.

Therefore, by examining the fossil record and comparative anatomy of these organisms help scientists to know the physical characteristics of organisms that have changed over time.

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(this isn't biology because they didn't have the subject I need)

What kind of texture would an igneous rock that formed deep underground have?

completely smooth

coarse-grained

fine-grained

grains of many different sizes

Answers

Answer:

coarse-grained

Explanation:

Intrusive rocks have a coarse grained texture. Extrusive Igneous Rocks: Extrusive, or volcanic, igneous rock is produced when magma exits and cools above (or very near) the Earth's surface. These are the rocks that form at erupting volcanoes and oozing fissures.

Coarse-grained is the answer

How does a mountain range in the path of prevailing winds affect precipitation on either side of the mountain?

Answers

Answer: As winds rise up the windward side of a mountain range, the air cools and precipitation falls. On the other side of the range, the leeward side, the air is dry, and it sinks. So there is very little precipitation on the leeward side of a mountain rang

Explanation:

Mountains and mountain ranges can cast a rain shadow. As winds rise up the windward side of a mountain range, the air cools and precipitation falls.

how to tell if a plant is monocot or dicot by stem, leaves

Answers

Answer:

by leaves

Explanation:

by seeing the fibrous and tap root system

Count the number of petals on the flower. If there are three, or a multiple of three (six, nine, and so forth), then the flower is likely a monocot. If there are four or five petals, or a multiple of four or five, then the flower is likely a dicot.

Cell walls can be found in several different types of cells. Which of the following best describes the function of the cell wall?
A. Controls what passes in and out of plant cells.
B. Controls what passes in and out of animal cells.
C. Provides support and helps maintain the shape of plant cells.
D. Provides support and helps maintain the shape of animal cells.

Answers

a i think but plant cells

i thibk it is a but its definitely plant cells

C.

The cell wall helps provide support to the cell. The plasma membrane is what controls the flow of ions and other particles into the cell. Cell walls are also only found in plant cells.

What are some of the other common organisms that live in the desert (biotic factors)?

Answers

Answer:

Some of the other common organisms that live in the desert (biotic factors) include reptiles, amphibians, insects, small mammals, and birds. This can be determined by using the information from desertusa.com, which states that some of the other common organisms that live in the desert (biotic factors) include reptiles, amphibians, insects, small mammals, and birds.

Explanation:

Answer:

In deserts, you'll usually see a lot of open land and not much of any plants. Animals that live in deserts include lizards, geckos, jackrabbits, camels, snakes, spiders and meerkats.

PLEASE BE QUICK!! I’M TIMED!!

A font refers to ________.

A) The location where two air masses meet.
B) An air mass that extends across a large area.
C) A large body of air moved by global wind patterns.
D) A place on Earth’s surface affected by uneven heating.

Answers

Answer: i thi

Explanation:

C is the answer I believe

Look at the diagram of the rock cycle below.

Which part of the cycle is missing?
A.
sedimentation
B.
melting
C.
crystallization
D.
mineral integration

Answers

answer B.

it’s melting

From the diagram of the rock cycle the missing part is ( B ) ; Melting

Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.

Magma is released to the earth surfaces during volcanoes therefore the missing term in the rock cycle is melting

Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.

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Fill in the blanks

Mutations are random changes in ----- that can alter the shape and structure of ----- that can cause differences in how the organism reacts or looks

Answers

DNA , genes/ chromosomes (i think)

A mother and father have two daughters. The daughters have some similar and some different physical features. Which statement best explains why the daughters’ physical appearance includes both similar and different features?

A: One daughter received fewer genes than the other.

B: Each daughter received a different number of genes from each parent.

C: The daughters received a random set of genes from both of their parents.

D: One daughter received all her genes from her father, and the other daughter received all her genes from her mother

Answers

C: The daughters received a random set of genes from both of their parents.

The physical appearance of an individual is determined by their genes, which are inherited from their parents. Each parent contributes half of their genes to their offspring, and the combination of genes from both parents determines the physical characteristics of the offspring.

When the two daughters inherit genes from both their parents, they receive a random set of genes from each parent, which can result in both similar and different physical features. Therefore, statement C is the best explanation for why the daughters' physical appearance includes both similar and different features.

D one daughter received all her genes from her father

What is a benefit of a car that runs on gasoline?

Answers

gas is more available and easy to get???

it could be more cost efficient

Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?

Answers

Arrow 'f' releases carbon dioxide.

Answer:

F I think I am not sure though hope I helped.

Energy can be stored in green plants as food. True False

Answers

Answer:

true

Explanation:

True, plants get energy from sunlight which they store for food. In order for photosynthesis to occur plans need sunlight, water and carbon dioxide

2.What are the main functions of the muscular system?
Responses

A. To break down food, absorb nutrients, and remove food wastes

B. To control growth and energy processes and to help maintain homeostasis

C. To help produce movement, help blood circulation, and help digestion

D. To support the body, protect internal organs, and allow movement

Answers

D Is the correct answer

To support the body, protect internal organs and allow movement

Other Questions

Sandhill Company began operations on January 2, 2019. It employs 8 individuals who work 8-hour days and are paid hourly. Each employee earns 11 paid vacation days and 7 paid sick days annually. Vacation days may be taken after January 15 of the year following the year in which they are earned. Sick days may be taken as soon as they are earned; unused sick days accumulate. Additional information is as follows. Actual Hourly Wage Rate Vacation Days Used by Each Employee 2019 2020 Sick Days Used by Each Employee 2019 2020 2019 2020 $10 $11 0 10 5 6 Sandhill Company has chosen to accrue the cost of compensated absences at rates of pay in effect during the period when earned and to accrue sick pay when earned. Salaries and Wages Expense Salaries and Wages Payable Cash 7040 (To record vacation time paid) Salaries and Wages Expense Salaries and Wages Payable Cash 4224 (To record sick leave paid) Compute the amounts of any liability for compensated absences that should be reported on the balance sheet at December 31, 2019 and 2020. 2019 2020 Vacation Wages Payable $ $ Sick Pay Wages Payable $ y = 2x 5 solve for x Fill in the missing numbers for the following income statement. (Do not round intermediate calculations.) $ 666,200 428,500 102,500 Sales Costs Depreciation EBIT Taxes (25%) Net income b. Calculate the OCF. (Do not round intermediate calculations.) c. What is the depreciation tax shield? (Do not round intermediate calculations.) b. OCF c. Depreciation tax shield When you see a psychologist answering questions on the witness stand during a trial, this person is most likely a _____.school psychologistdevelopmental psychologistindustrial organizational psychologistforensic psychologist need asap1. What is the speaker's point of view or perspective? What is he trying to convincehis audience to believe? What does he want them to do? How do you know?2. How does the speaker use evidence to support his position? Why do you think hechose this evidence?3. What rhetorical techniques does the speaker use, such as appeals to emotion, logic and common sense, or authority and moral character? What about nonverbal communication, such as gestures, eye contact, or facial expressions? What are some examples these rhetorical techniques?4 . What are some of the argument's weaknesses? Do these weaknesses involve logical fallacies, misuse of evidence, lack of evidence, poor consideration of the needs of the audience, or something else? What are some examples?5. Based on your analysis of the main point, evidence, rhetorical appeals, and weaknesses of the speech, write a paragraph offering your balanced assessment of the speech as a whole.Questions come from President Obamas Back to School Speech&President Kennedys Address at Rice University on the Nationals Space Effort if a wave has a wavelength of 25.4 cm and a frequency of 1.63 khz, its speed is closest to Taylor found the first big puddle he stomped and splashed with glee.The sentence is fine as is.Put a semicolon between puddle and heO The sentence needs a FANBOYNext how do you find the height of a cylinder? Help please!!Can I get a solution for mental health support? Its a project and I need to compare two solutions, its about problems in our society. I have normalization already but need one more both cultures generally die out quickly because of the build up of metabolic wastes. why is this less of a problem with slant cultures? On December 31, it was estimated that goodwill of $1,600,000 was impaired. In addition, a patent with an estimated useful economic life of 15 years was acquired for $594,000 on August 1. a. Journalize the adjusting entry on December 31 for the impaired goodwill. b. Journalize the adjusting entry on December 31 for the amortization of the patent rights. can someone please explain to me what I'm suppose to put in the box?? A cuantos chicos va a invitar Fabiola su fiesta HELP ME its on 1984 george orwell an individual's need for life insurance is generally the greatest during which phase of the life cycle? You have read two articles on becoming a citizen: "Naturalization" and "How GovernmentWorks: What Is Citizenship?" Write an essay that explains how someone who was not born in acountry could become a citizen of that country. Use details from both articles in your response. 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