Ñame 2 problems that scientists have when classifying species

Answers

Answer 1
Their similarities and differences

Related Questions

Which of the following is not
one of the kingdoms of living
things?
a Fungi
b. Bacteria
c. Animalia
d. Protista

Answers

Answer:

B. Bacteria

Explanation:

Because bacteria are unicellular organisms belonging to the prokaryotic group where the organisms lack a few organelles and a true nucleus

Bacteria is not one of the kingdoms of living things. So, the correct option is (B).

What are the Different kingdoms of Living things?

Living things are divided into 5 kingdoms. These are:

1. Monera

It is the kingdom of microscopic living things that groups together prokaryotes (archaea and bacteria) present in all habitats and composed of single-celled things without a defined nucleus. Bacteria belongs to this kingdom.

2. Protista

This group is primitive of eukaryotic which is paraphyletic which includes common ancestor but not all its descendants. Protozoa belongs to this kingdom.

3. Fungi

This kingdom includes yeasts, molds and all species of mushrooms and toadstools, which are multicellular aerobic heterotrophic eukaryotes, have chitin in their cell walls, feed on other living things, and reproduce by means of spores.

4. Plantae

Trees, plants belong to the kingdom Plantae, which is characterized by its sedentary, multicellular and eukaryotic nature. They are autotrophs, whose cells contain cellulose and chlorophyll which are essential for life on Earth as they release oxygen through photosynthesis.

5. Animalia

The kingdom Animalia is divided into two major groups – vertebrates and invertebrates which are multi-celled, heterotrophic eukaryotes that have aerobic respiration, sexual reproduction and the ability to move. This kingdom includes mammals, fish, birds, reptiles, amphibians, insects, molluscs and annelids.

Thus, Bacteria is not one of the kingdoms of living things. So, the correct option is (B).

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Which property is shared by the cells of all living things?

A. The cells contain DNA composed of adenine, thymine, guanine, and cytosine.

B. The cells have chromosomes that are located inside a membrane-bound- nucleus.

C. The cells are surrounded by a phospholipid bilayer and a cell wall made of
cellulose.

D. The cells rely on mitochondria to carry out aerobic cellular respiration.

Answers

Answer:

A

Explanation:

B) not all cells have a nucleus. For example, prokaryotes have no nucleus

C)Not all cells have a cell wall.(Animal cells don't)

D) not all cells have mitochondria (Prokaryotes don't)

A) all cells contain DNA, and DNA is all composed of adenine, thymine, guanine, and cytosine.

Living things are those organisms that have life and they possess the basic characteristics that enable them to be termed as living. This include growth, reproduction, irritability etc.

The property listed in the options shared by cells of all living things is the cell contain DNA composed of adenine, thymine, guanine and cytosine.

All living things contain the genetic material (DNA) that carry the needed information essential for their cells to function. Although some living things do not have a membrane bound nucleus eg prokaryotic cells. Many differences therefore exists that differentiates the living things from one another bringing them into groups.

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If a DNA molecule with a total of 2500 nucleotides has 1500 purines, how many guanines are in this DNA molecule?

Answers

Answer:

I'm pretty sure there would be 1000 guanines in the DNA molecule.

Explanation:

Hope this helps. . . <3

If a DNA molecule with a total of 2500 nucleotides has 1500 purines, total number of guanines are in this DNA molecule is 1000 guanines in the DNA molecule.

What will be the total number of thymines if a DNA molecule has a total of 1500nucleotides?

The DNA molecules would be given and it have 450 thymines if the DNA molecule has the total of 1500 nucleotides and the DNA molecule also have been known as the deoxyribonucleic acid has been made up of the double helix. The DNA molecule with the total of 1500 nucleotides would contain 750 cytosine and Thymines and 750 guanines and adenine.

Hence, we can have the expression:

C + T = 750

If there are 300 cytosines, hence;

300 + T = 750

T = 750 - 300

T = 450

A nucleotide has the monomer constituting DNA or RNA biopolymer molecules and the double-stranded DNA molecule posseses two strands of DNA made up of the nucleotides.

Therefore, If a DNA molecule with a total of 2500 nucleotides has 1500 purines, total number of guanines are in this DNA molecule is 1000 guanines in the DNA molecule.

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What about the mitochondria and
chloroplast is unlike any other
organelle?

Answers

Answer:

, mitochondria appear to originate only from other mitochondria. They contain their own DNA, which is circular as is true with bacteria, along with their own transcriptional and translational machinery.

Explanation:

The fact that mitochondria and chloroplasts have their own DNA and can replicate independently is what sets them apart from other organisms.

In human cells, mitochondria are in charge of cellular respiration, while chloroplasts are in charge of photosynthesis in plant cells. The endosymbiotic theory, which argues that these organelles are derived from ancient prokaryotic creatures that had a symbiotic relationship with early eukaryotic cells, is supported by the fact that they share a circular DNA structure with bacteria. Chloroplasts and mitochondria are distinctive and important to the energy dynamics and metabolism of eukaryotic cells because they maintain some autonomy, unlike other organelles that depend on the cell's nucleus for their operation.

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The best place to find an oligodendrocyte.
A. White matter of CNS
B. White matter of PNS
C. Gray matter of CNS
D. Gray matter of PNS
E. A ganglion

Answers

Answer:

C. Gray matter of CNS

Explanation:

Which list shows the three things that every good paragraph needs?
questions, answers, examples
topic sentence, supporting sentences, examples
themes, examples, transition words
topic sentence, supporting sentences, clincher plzz help me its langue arts

Answers

The second one. Topic sentence supporting sentences and examples. It should be. If not try the third one

Answer:

topic sentence, supporting sentences, examples

Explanation:

hope it helps


from the roots up through the stems and into the leaves, replacing
the water used in ———— ??

Answers

Answer:

Transpiration

Explanation:

Plants lose water by transpiration.

Which refers to the light-sensitive surface at the back of the eye?
1.lens
2.iris
3.retina
4.optic nerve

Answers

The light sensitive surface at the back of the eye is referred to as the Retina. The answer us 3.)
the retina is the light sensitive surface of the eye

What is the true nature of science?

Answers

Answer:

Scientific Knowledge Is Based on Empirical Evidence; Scientific Knowledge Is Open to Revision in Light of New Evidence; Science Models, Laws, Mechanisms, and Theories Explain Natural Phenomena. Science Is a Human Endeavor; and. Science Addresses Questions About the Natural and Material World.

The true nature of science is to build knowledge about the natural world. With that information we come up with new ideas and discover new evidence every day

write the names of the main taxa,putting them in order from most specific to least specific

Answers

Answer:

Kingdom, Phylum, Class, Order, Family, Genus and Species.

Shawn sells ice cream at his mom's yard sale, but he notices that the ice cream melts too fast. Which is the best way to slow the melting? Place the ice cream in the sun. Place the ice cream in a cooler. Place the ice cream near a fan. Place the ice cream under a tent.

Answers

Place in a cooler because it’s going to slow down the melting

How are the different fields of biology related to each other

Answers

Answer:

Modern principles of other fields— chemistry, medicine, and physics, for example—are integrated with those of biology in areas such as biochemistry, biomedicine, and biophysics. Biology is subdivided into separate branches for convenience of study, though all the subdivisions are interrelated by basic principles.

Explanation:

Answer:

Hey mate.....

Explanation:

This is ur answer.....

There are three major branches of biology – botany, zoology and microbiology. Botany is the branch of biology which deals with the study of different aspects of plants. Theophrastus is known as the father of Botany. Zoology is the branch of biology connected with the study of different aspects of animals.

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Memory is___; therefore, ___.

1) an exact replica of an event; we should be confident about the accuracy of people's memories

2) like a video cassette recorder; we should wonder about the accuracy of people's memories

3) reproductive; we should wonder about the accuracy of people's memories

4) reconstructive; we should wonder about the accuracy of people's memories

5) reconstructive; we should be confident about the accuracy of people's memories

Answers

Memory is reconstructive and we should therefore wonder about the accuracy of people's memories.

Recalling an event via memory has the tendency to be influenced by other cognitive processes, including perception, beliefs, ideologies, imaginations, etc. This phenomenon, known as reconstructive memory, is one of the key theories of memory recall.

This is one of the reasons 2 people who witnessed an event will have different reports for the same event. Thus, the reconstructive memory theory leaves no other option but to wonder about the accuracy of people's memories.

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Recombination (crossing over) during prophase I of meiosis occurs when:

Answers

Answer:

meiosis before tetrads are aligned along the equator in metaphase I.

Explanation:

When chromatids "cross over," homologous chromosomes trade pieces of genetic material, resulting in novel combinations of alleles, though the same genes are still present. Crossing over occurs during prophase I of meiosis before tetrads are aligned along the equator in metaphase I

What chemical in the chloroplast captures sunlight for photosynthesis to take place?

Answers

Answer:

pigment chlorophyll

Explanation:

Mark me the brainliest please

Why don’t pregnant women menstruate?​

Answers

Answer:

pregnant women don't menstruate bc the blood is going to the child now

Explanation:

Where does hunger originate? A., B., C., or D.

Answers

Answer:

The answer is (C) In the hypothalamus

Explanation:

Within the hypothalamus are nerve cells that, when activated, produce the sensation of hunger.

Do you have 5th grade
science for kids in Texas

Answers

Answer:

Yes, indeed they do.

Explanation:

I called my cousin in texas just to make sure this answer is correct. No problem.

Which organelle in a plant cell is most affected when a plant has not received any water? Explain your reasoning.

Answers

Explanation:

that's why hope it helps you

plssss help meee now asap giving brainless​

Answers

1. Gravity also increases

2. Gravitational attraction also decreases

3. Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

4. Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

A certain gas has a volume of 500.0 ml. at 77.0 C and 600.0 torr

Answers

Answer:

jehdhrue7373

Explanation:

n d1kb nwdcibczqkwvdbjwd

3 parts of a nucleotide are

Answers

Answer:

Nucleobase, Five-carbon sugar, phosphate group.

Base, sugar and group.

Explanation:

Nucleotides are composed of three subunit molecules: a nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group consisting of one to three phosphates.

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What is sexual reproduction?​

Answers

Answer:

the production of new living organisms by combining genetic information from two individuals of different types

The relationship between predator and prey species is modeled here with the owls and rodents. Which statement(s) correctly evaluate
the relationship between these species with regards to evolution? Select ALL that apply.
es )
A)
The presence of the owls is a selective pressure for the rodents.
B)
Fewer rodents result in an overpopulation of owls, leading to their
evolution
o
Coevolution is occurring as each population is evolving in response to the
other.
D)
Owls that see camouflaged rodents are more likely to evolve to have
increased variation
E)
Coloration results in poorly or well-adapted rodents while eyesight level
can lead to poor or well-adapted owls.

Answers

Answer:A, C, E .

Explanation:

I just did it on USA testprep

A) The presence of the owls is a selective pressure for the rodents.

C) Coevolution is occurring as each population is evolving in response to the other.

What is predator?

A predator is an organism that hunts, kills, and feeds on another organism known as the prey. Predation is a biological interaction between two species, where one species benefits by consuming the other species, and the other species is harmed or killed.

These two statements correctly evaluate the relationship between the predator and prey species in terms of evolution. The presence of owls as predators creates a selective pressure for rodents, where those with traits that allow them to escape predation are more likely to survive and pass on their genes.

This leads to the evolution of better-adapted traits in the rodent population over time. The interaction between owls and rodents can also be considered an example of coevolution, as changes in one population can drive changes in the other population, leading to a reciprocal evolutionary response.

Overall, the relationship between predator and prey species is complex and constantly evolving, with each population influencing the other's evolution over time.

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2. Summarize the properties of the three types of triglycerides by completing the table.

Answers

The properties of the three types of triglycerides by completing the table are:

They are Non-polarThey are HydrophobicThey are Insoluble in water

Triglycerides

Triglycerides are the main constituents of body fat in humans, vertebrates and vegetable fats.

triglyceride is an ester derived from glycerol and three fatty acids.

Summary of their properties

They are:

Non-polar

Hydrophobic

Insoluble in water

Soluble in organic solvents

Their specific gravity is less than water.

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Select the correct answer.
Which one of the following is NOT a macromolecule?
O protein
nucleic acid
carbohydrate
water

Answers

water. the only 4 macromolecules are nucleic acid, carbohydrate, lipids, and protein
Water :)

11:11
Macromolecules ~ a Molecule containing a very large number of atoms, such as protein, nucleus acid, or synthetic polymers

based on what factor do we choose the method of separation for different components of a mixture?​

Answers

Answer:

Different components of a mixture have different properties on the basis of which we device the method that is used to separate it from other components of the mixture

-TheUnknownScientist 72

4) If City A has 200,000 people in 2 square miles And City B has 350,000 people in 3 square miles, which city is most densely populated ?

Answers

Answer:

city b

Explanation:

because 200000/2=100000 so 100000x3=300000 but city b is 350000

so its city b

Which statement about cellular respiration is true?
It produces oxygen.
It requires water.
It is used by every living cell.
it converts energy to food.​

Answers

Third one. Pls mark me brainliest

Biology anatomy of a muscle

Answers

You can find your answer in this pic

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