Why do classification systems change over time?
O Scientists find new evidence in their studies.
O Scientists use old methods of classification.
O Scientists repeat experiments and find no changes.
O Scientists find similar evidence to previous work.

Answers

Answer 1
The answer to this question is A; they will find new evidence in their studies as there could be changes in DNA analysis
Answer 2

Classification systems change over time because scientists find new evidence in their studies. So, the correct option is (A).

What is Classification System?

There are many types of classification systems that are used for different purposes. The classification of organisms takes place in the form of a classification system called Linnaean classification.

Linnaean classification involves the use of organisms grouped using a hierarchy called taxa which includes taxonomic levels and taxonomic groups that animals are placed in based on their characteristics and even shared ancestry.

The different levels of biological classification are as follows:

Species » Genus » Family » Order » Class » Phylum » Kingdom » Domain

It changes over time as scientific studies find new evidence.

Thus, classification systems change over time because scientists find new evidence in their studies. So, the correct option is (A).

Learn more about Classification systems, here:

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Related Questions

Organisms of either extreme characteristic dying out while organisms with the medium characteristic have a higher fitness is identified as?

Answers

Answer: Stabilization selection

Explanation:

Natural selection involves the differential survival and growth of organisms which have suitable traits to survive in unfavorable or adverse environment. Such traits are passed on to the next generation. Stabilization selection is a type of natural selection in which the nature selects the non-extreme phenotypic traits. Middle traits are selected and such organisms grow and reproduce. Example can be given that of human babies in which babies with low weight lose more heat and babies with high weight are difficult to be delivered from the pelvis. Therefore, babies with middle weight are expected to survive more than that of low or middle weight.

Como se chama a transferencia de enrgia termica flui de um corpo com maior temperatura quando ao outro de menor temperatura quando ha diferença de temperatura entre ambos

Answers

Answer:

Conduction.

Explanation:

Conduction is the process in which heat energy is transferred from the hotter body towards colder body because of temperature difference between two bodies. Conduction occurs only due to physical contact between two bodies. In the conduction process, the thermal energy flows from a body with a higher temperature to the other body having lower temperature until both bodies having same temperature.

A 38-year-old mother of three presents to her primary care office with complaints of fatigue. She feels that her energy level has been low for the past 3 months. She was previously healthy and taking no medications. She does report that she has gained about 10 lb and has severe constipation, for which she has been taking a number of laxatives. A TSH is elevated at 25 mU/L. Free T4 is low. She is wondering why she has hypothyroidism. Which of the following tests is most likely to diagnose the etiology?
A. Antithyroid peroxidase antibody
B. Antithyroglobulin antibody
C. Radioiodine uptake scan
D. Serum thyroglobulin level
E. Thyroid ultrasound

Answers

Answer:

A. Antithyroid peroxidase antibody

Explanation:

The most common cause of hypothyroidism is autoimmune thyroiditis, also known as chronic lymphocytic thyroiditis or Hashimoto's disease. This condition (autoimmune thyroiditis) is caused by damage of the thyroid gland, which occurs when antibodies of the immune system attack this gland. The thyroid peroxidase test is an enzyme immunoassay widely used to measure the level of autoantibodies against thyroid peroxidase. Patients with chronic thyroiditis often display a positive thyroid peroxidase test. On the other hand, thyroid ultrasound is useful for the initial evaluation of painless thyroiditis in order to distinguish nodules or multinodular goiter. Antithyroid peroxidase antibodies are commonly observed in individuals suffering autoimmune thyroiditis, whereas antithyroglobulin antibodies are observed in different thyroid disorders and autoimmune diseases. Finally, a radioiodine uptake scan measures the amount of radioactive iodine accumulated in the thyroid gland, which is useful only for diagnosing early‐stage of Hashimoto's thyroiditis.

why is carbon dioxide required for photosynthesis

Answers

Answer:

Carbon dioxide is necessary for photosynthesis because plants make their food only in the presence of carbon dioxide

I hope this will help you :)

The majority of a cell's life is in this phase.
A. centromere
B. interphase
C. cytokinesis
D. prophase

Answers

The answer is B) interphase

how the animals and plants of a healthy ecosystem are organized and interact.

Answers

Answer:

A healthy ecosystem consists of native plant and animal populations interacting in balance with each other and nonliving things (for example, water and rocks). ... Decomposers break down dead plants and animals, returning vital nutrients to the soil. Plants take up these nutrients, along with water, through their roots.

Explanation:

Which of the following is one way that humans can protect biodiversity?

Answers

I believe it’s c correct me if I’m wrong
I'm 99% sure the answer is A

Plz help fast will give 5 star

Answers

The dam would add more support… instead of using dirt to hold up the rainfall running down from the mountain the dam would hold the water back and keep the water away from where it is headed


A third-level consumer must be which type?
Carnivore
Herbivore
Producer
Decomposer

Answers

The answer is : Carnivore

Answer:

i think answer is producer

The female gametes are called__________. *

sperm
ova

Answers

Female gametes are called ova or sperm while male gametes are called sperm. I hope this helps :)

Answer:

Woman's gametes are called Ova. Sperm is what a mans gamete is.

Explanation:

A man is HH for a trait, while his wife is hh. What will their children

Answers

Explanation:

I hope what I have drawn on the picture will help you understand:)

For recessive trait to be expressed you need to receive the allele from both parents. True or false

Answers

Answer:

When a trait is recessive, an individual must have two copies of a recessive allele to express the trait.

Help please I will mark brainlist!!

Answers

Answer: i think the answer c

Explanation:

Will mark brainliest there’s a button for the pic

Answers

I'd say FLPE is the worst. It can run high temperatures but it's not safe and not safe with all foods, it's has a high cost.

Cuando se excita una neurona con estímulos de intensidad creciente se obtiene, a partir del umbral, la misma respuesta eléctrica. En esta situación se pone de manifiesto la característica de: *
A) ley del todo o nada.
B) período refractario relativo.
C) período refractario absoluto.
D) excitabilidad.
E) umbral de excitación.

Answers

Answer:

d) excitabilidad

Explanation:

creo que seria esa no lo sé

no se mucho de eso

me dices si sale buena o mala

1. In 1970, the U.S. Congress established The Environmental Protection Agency (EPA) to oversee all of the following, EXCEPT: *

A.pollution problems
B.building new nuclear power plants
C.establish new environmental policies
D.research solutions to environmental issues

Answers

Answer:

B

Explanation:

(Free Response) Phototropism is a phenomenon observed in plants. Phototropism is best described as a plant’s response to light. Auxin is a hormone and signaling molecule found in plants that promotes cell elongation. It is observed that auxin concentrations are lower in the parts of the plant that are closest to light. Auxin concentrations are higher in the parts of a plant that are in the shade.
Answer the following in the space provided.
A. Describe phototropism using what you know about signal transduction. Start with auxin as a signaling molecule.
B. Explain how altering the receptor would affect the signaling pathway.
C. Predict how a plant would respond to exposure to light on all sides of a growing stem.
D. Provide reasoning and justification for your prediction.

Answers

The answer is C that correct welcome

Describe the scales that scientists use to measure the magnitude of an earthquake

Answers

Answer:

the ritcher scale the mercalli scale magnitude scale

What Are Alleles? Where Do alleles come from?​

Answers

Answer:

An allele is one of two more versions of a gene. An individual inherits two alleles  for each gene,one for each parent.

Explanation:

Part-1

An allele is a variant form of a gene. Though the term allele was originally used to describe variation among genes, it now also refers to variation among non-coding DNA sequences.

For example: an allele is the gene that determines hair color.

Part-2

One allele for every gene in an organism is inherited from each of that organism's parents.

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The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the
lithosphere, hydrosphere, and biosphere. Order the steps above into a logical sequence that might represent steps in
the phosphorus cycle.
A)
111, 111, IV, V, VI.
B)
1. II. IV. IIIVVI
C)
IV. HII VIIVI
D)
II IV V VI

Answers

I think answer should be d.
The correct answer should be D

If fertilization occurs which hormone triggers the thickening of the endometrium
a.estrogen
b.progesterone

Answers

Answer: B. Progesterone

Explanation: trust me;)

Biology - Genetics
Click on a word in the puzzle to see the clue
Welcome!
Click a word in the puzzle to get started.
Check puzzle

Answers

Answer:

what type of question it is

Where is the puzzle?

True or false The sea otter is considered a keystone species that influences the survival of many other species in an ecosystem .

Answers

Answer:

false

Explanation:

answer: True

kind of

How are glaciations related to Earth's position in a Milankovitch cycle​

Answers

Answer:

The Milankovitch Theory explains the 3 cyclical changes in Earth's orbit and tilt that cause the climate fluctuations occurring over tens of thousands of years to hundreds of thousands of years. ... When the orbit is more elliptical, glaciation is affected by the time of year (season) that Earth is closest to the sun.

Explanation:

Which of the following statements about water is NOT true?
A. It helps to maintain a normal body temperature.
B. It is a good source of energy.
C. It carries substances throughout the body in the bloodstream.
D. It is needed for all chemical reactions to occur.

Answers

B, food plays the part of giving Energy because of its nutritional value
D since chemical reactions can occur without the use of water.

which is the method of estimating fish in a pond​

Answers

Explanation:

There is a popular sampling method called capture – recapture or 'Lincoln Index' or 'Pieterson's Method' which is used to estimate the size of an animal or human population.

Mendel based his conclusions on his understanding of meiosis.
a. FALSE
b. TRUE

Answers

true makes the most sense

Phototropism is a phenomenon observed in plants. Phototropism is best described as a plant’s response to light. Auxin is a hormone and signaling molecule found in plants that promotes cell elongation. It is observed that auxin concentrations are lower in the parts of the plant that are closest to light. Auxin concentrations are higher in the parts of a plant that are in the shade.

Answer the following in the space provided.
A. Describe phototropism using what you know about signal transduction. Start with auxin as a signaling molecule.
B. Explain how altering the receptor would affect the signaling pathway.
C. Predict how a plant would respond to exposure to light on all sides of a growing stem.
D. Provide reasoning and justification for your prediction.

Answers

Answer:

i think the answer is c but im kinda not understanding the question

Explanation:

All of the following are major glands of the endocrine system expect

Answers

Answer:

sweat glands

Explanation:

Sweat glands is exocrine

What is the purpose of the digestive system?

1. Create energy
2. Swallow food
3. Break down food so nutrients can be absorbed

Answers

Answer:

3. Break down food so nutrients can be absorbed

Explanation:

the reasoning is when you digest something your body is breaking down the food into small chuncks so that the nutrients can be absorbed easier

It would be #1&3. The digestive system is needed to break down food so nutrients can be absorbed. From there you body can create its energy.

not #2 - your mouth swallows not your digestive system
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