Leg bones in whales would be an example of: A:Vestigial structures B:Derived characteristics C:Analogous structures D:Homologous structures​

Answers

Answer 1
Correct answer - Vestigial Structures.

Why? - These unused structures without function are called vestigial structures. Some examples of vestigial structures are wings on flightless birds, leaves on some cacti, and hind leg bones in whales.

Related Questions

When a cel is placed in this type of solution, there will be equal amounts of water moving in and out of the cell at equal rates.
A. hypotonic
B. isotonic
C. supersonic
D. hypertonic​

Answers

Answer:

B, Isotonic solution

Explanation:

In an isotonic solution, the flow of water in and out of the cell is happening at the same rate.

Answer:

A. hypotonic

Explanation:

In an isotonic solution, the flow of water in and out of the cell is happening at the same rate. Figure 9.7. 1: Red blood cells in hypertonic, isotonic, and hypotonic solutions.

Changes in weather are caused by the movement and interaction of _______ ______________. What should I fill the blanks in with?

Answers

Answer:

Air masses

Explanation:

An air mass is a volume of air defined by its temperature and water vapor content. Air masses adapt to the characteristics of the surface below them.

please identify the phases of mitosis

Answers

Answer: umm

Explanation:

how

What is the inheritance pattern this pedigree is representing?
Autosomal Dominant
Autosomal Recessive
Sex-linked recessive
Sex-linked dominant

Answers

Sec linked dominated

Cycling mater of plants and animal cells

Answers

Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.

does DNA or RNA contain guanine

Answers

Answer:

It's present in both :)

Explanation:

Answer:

they both have guanine

Explanation:

Genes are located in the nucleus of a cell. But which structures in a cell are they ON?

Answers

It is found in chromosomes

Explain the key steps of the rock cycle including the words igneous, sediment, sedimentary, metamorphic and magma.

Answers

Answer:

Igneous rock can form sediments and metamorphic rock. metamorphic rock can form magma (which cools to make igneous rock) and sediments ! Sediments make sedimentary rock , which makes metamorphic rock.

confusing, yes, but i hope this helps!

i included a pic just in case! have a good day :)

The key steps of the rock cycle including the words igneous, sediment, sedimentary, metamorphic and magma should be explained below.

Key steps of the rock cycle:Igneous rock can create sediments and metamorphic rock.Metamorphic rock can create magma which cools to form the igneous rock and sediments. Sediments could make sedimentary rock , which makes metamorphic rock.

In this way, the key steps should be written.

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Does pineapple eat us?

Answers

Answer:

yea

Explanation:

Which process is the first step in the formation of urine in the nephrons?
O filtration
O secretion :
O reabsorption
O absorption

Answers

Answer:

I think Answer is A.

Explanation:

I hope it's helpful!

Yes the answer is filtration

what are chloroplast

Answers

Answer:

Chloroplasts are the organelles present in plant cells in which Photosynthesis takes place.

Answer:

hello I did it.best of luck

In the Osmosis Gizmo, the cell is placed in a very small chamber. Suppose a cell is placed in a large container of water with a very low solute concentration. What do you think would happen

Answers

Answer:

If a cell is placed in a large container of water with a very low solute concentration the solution will be hypotonic in nature. The water will enter inside the cell through semi-permeable membrane of cell. The cell will swell.

Why are the poles of the Earth colder than the tropics?
A.) the poles of the earth receives less solar radiation than the tropics because of the angle of the earth

B.) the tropics are closer to the sun, so they receive more solar radiation

C.) the poles of the earth do not receive any solar radiation from the sun

D.) the poles of the earth are further from the sun than the tropics, so they receive less solar radiation

Answers

The poles of the earth are colder than the tropics because:
A and D

The plant cell's central vacuole Group of answer choices occupies a large area of the cell All choices are correct is a reservoir for water. Stores nutrients and cellular waste products.

Answers

Answer:

Stores nutrients and cellular waste products.

Explanation:

Vacuole is a space that is line with membrane and within the cell that lacks cytoplasm but filled with fluid.

They are important cytoplasmic organelles and perform certain functions such as storage, ingestion, digestion, excretion, and expulsion of excess water.

In plant, large central vacuoles enable them to attain a large size without accumulating the bulk that would make metabolism difficult.

Regeneration is a mechanism for:
A: Movement
B: Communication
C: Defense
D: Healing

Answers

Answer:

D healing

Explanation:

Answer:

Healing

Explanation:

what are 3 different types of mutation ​

Answers

Answer:

There are three types of DNA Mutations: base substitutions, deletions and insertions. Single base substitutions are called point mutations, recall the point mutation Glu -----> Val which causes sickle-cell disease. Point mutations are the most common type of mutation and there are two types.

Explanation:

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Answer:

base substitutions, deletions and insertions.

Explanation:

The most powerful possible use of CRISPR is also to insert the genes that encode the CRISPR system along with the new genes you want in an organism. Then the CRISPR genes will make changes all by themselves in all future offspring. This is called ?

Answers

Reproduction in other animals

asexual reproduction involves two-parent organisms
true or false

Answers

False, it includes 1 parent and produces a offspring as it’s asexual

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How many amino acids?

Answers

Answer:

huh ewan ko sayo

Explanation:

pota pota pota

A gummy bear was left in a beaker of distilled water overnight. The gummy bear on the left was the original gummy and the gummy on the right was the resulting bear.
Explain what happened to the volume of the gummy bear that was left in distilled water. Use CER format to construct your answer.

Answers

Answer: The tap water contains impurities that the gummy bear was already at an equilibrium with. Therefore, if it is placed in distilled water; it would be placed in a hypotonic solution. This would cause it to swell even more and become more fragile.

Explanation:

The Gummy Bear has a partially permeable coating that allows water molecules to pass through while blocking larger molecules. Water molecules move into the bear in this osmosis experiment, enlarging it.

What is endosmosis?

Endosmosis is the movement of water within cells when placed in a hypotonic solution. Water movement causes the cell to swell.

The swelling of the cells is caused by endosmosis. Exosmosis occurs when cells are placed in hypertonic solutions, resulting in cell shrinkage.

Isotonic solutions have a similar water potential to the cytoplasm, so neither endosmosis nor exosmosis occurs.

The mobility of solvent into the cell is referred to as endosmosis. The progression of solvent out of the cell is known as exosmosis.

The solvent flows from the extracellular environment into the cell. The solvent flows from the cell into the surrounding solution.

Thus, the process of endosmosis will occur in the given situation that causes that bear to swell.

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HELP ASAP ITS TIMED I ONLY HAVE 12 MINUTES LEFT!!!!!

Which of the following is an important part of a risk assessment for a potential toxicant?
A. Developing strategies to minimize risk

B. Performing a dose-response analysis

D. Performing a cost-benefit analysis

Answers

Answer:

Performing a dose-response analysis

Explanation:

A P E X

Which term best defines cancer out of these four? 1.The cell cycle interrupted and causing Gap 0 phase not to exist. 2.The cell cycle causing no cytokinesis 3.Only malignant tumors are formed. 4. A disease caused by an uncontrolled division of abnormal cells in a part of the body.

Answers

Answer: The correct answer is

A disease caused by an uncontrolled division of abnormal cells in a part of the body.

Explanation:

This is because cancer is a disease that occur when the normal body mechanism changed and stop working whereby old cells refuse to die and there is uncontrollable replication of abnormal cells in the body . This uncontrollable division of cells tend to want invade and spread to part of the body thereby forming tumors and some cancers don't form tumors such as lukemia.

What is the difference between a biome and a microhabitat

Answers

A micro habitat is small habitat that exists on a normal habitat, where as the biome describes the type of area on a much larger scale. for example; a desert is a biome and in that desert there is an area where grass grows and lot of mice live in that area (habitat), and there is a part of that habitat where one of the mice feeds (micro habitat). a micro habitat can also exist on another animal (parasite).

The difference between a biome and a microhabitat are as follow:

Microhabitat: A microhabitat is a small specialized habitat within a larger habitat. An example of a microhabitat is a caterpillar snacking on leaves that have fallen from a walnut tree in the orchard.

Biome: A biome is a large region of Earth that has a certain climate and certain types of living things. Major biomes include tundra, forests, grasslands, and deserts.

What is a habitat?

A habitat is a place where an organism makes its home. A habitat meets all the environmental conditions an organism needs to survive.

Hence, microhabitat is a small specialized habitat whereas biome is a large region.

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What cell tissue helps carry messages? .

Answers

The answer ➪ The cellular tissue that helps transport messages is nervous tissue.

Insta: 25k_kem

Answer:

A special cell called a neuron is responsible for carrying these messages. There are about 100 billion neurons in the human brain.

Explanation:

Which of the following best describes mutualism?

a. Intestinal bacteria obtain nutrients from the gut and produce vitamin K used by humans.

b. Bacteria in improperly prepared food is consumed by humans, causing food poisoning.

c. Invasive bacteria at an area of injury produce toxins that damage healthy tissues of the human body.

d. Bacteria become resistant to antibacterial medication that humans use for treatment.

Answers

Answer:

b or c

Explanation:

The beaker below represents
A. A hypertonic solution because water move out of the cell
B. A hypotonic solution because water will move out of the cell
C. A hypertonic because water will move into the cell
D. A hypotonic solution because water will move into the cell

Answers

Answer:

the answer is probably D

consider the descending water. First, why does it stop descending? Second, which way is it most likely to go when it stops descending?

Answers

Answer: What are the options?

Explanation:

Select a claim and then write a report to Dr. Lewis explaining why you support that claim.

Claim 1: The sediment that formed the Great Plains came from the rock of the Rocky Mountains.
Claim 2: The magma that formed the Rocky Mountains came from the rock of the Great Plains.
Choose the claim that is best supported by evidence, explaining why the rock of the Rocky Mountains and Great Plains have surprisingly similar mineral compositions.

Answers

Answer: It is claim 1

Explanation: It is 1 as the Rocky Mountains weathered down into sediments which was then compacted into sediment rocks

The appropriate claim is Claim 1: The sediment that formed the Great Plains came from the rock of the Rocky Mountains.

It should be noted that the sediment that formed the Great Plains came from the rock of the Rocky Mountains. As the Rocky Mountain was eroded by erosion, there were sediments that were produced.

Cenozonic-era volcanism and erosion resulted into sediments and the sediments were transported and were later deposited to form the Great Plain. Therefore, the first claim is logically true while the second claim is incorrect.

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Why is it so important for us to decrease our use of fossil fuels?

A. The combustion of fossil fuels are causing a hole in the Ozone layer
B. The combustion of fossil fuels leads to an increase in atmospheric CO2 which leads to global climate change
C. The combustion of fossil fuels help us meet our energy demands, so it is not that important that we switch to alternatives.
D. Fossil Fuels do not harm the environment, but we are running out of them so we need alternatives.

help me please please​

Answers

Answer: it

Explanation: I know

Answer:

B.

Explanation:

Fossil fuels definitely harm the environment, and their supply is depleting. So that takes out answers C and D, leaving A and B. The main cause of ozone depletion and the ozone hole is manufactured chemicals being released into the air. While CO2 from fossil fuels does have an effect on worsening the hole, it has a much higher effect on global climate change.

What is the structure that breaks the spindle fiber into 2?
Help !!

Answers

Answer:

The centromeres

Explanation:

The KINETOCHORE is the cellular structure that breaks the spindle fiber into TWO.

The kinetochore is a structure that associates the duplicated chromatids in eukaryotic cells to spindle microtubules during cell division (either mitosis or meiosis).

The kinetochore forms at the centromere of the chromosomes.

The kinetochore is a disk-shaped structure made up of more than 100 different proteins, especially constitutive centromere-associated network (CCAN) proteins.

In conclusion, the KINETOCHORE is the cellular structure that breaks the spindle fiber into TWO.

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