01:50:51
A scientist discovers a cell that has chloroplasts, cytoplasm, DNA, and a cell membrane. Which statement best describes how
the cell could be classified?
The cell is prokaryotic her
has DNA

Answers

Answer 1

The cell is a plant cell as animal cells do not have chloroplasts

Answer 2

Answer:

The answer is D.) The cell is eukaryotic because it has chloroplasts.


Related Questions

reaaallly need help!!​

Answers

Explanation:

this is very easy I will try and send this picture

Which happens during the second trimester?
A. Blood pumps through the heart.
B. The stomach produces digestive fluids.
C. The lips begin to develop.
D. Teeth begin to form.

Answers

Answer:

The lips begin to form. I know that during the second trimester ears and eyes begin to develop, so I assume that lips would also begin to develop too.

In pregnancy, during the second-trimester blood pumps through the heart. The correct option is A.

What is trimester?

A pregnancy is divided according to the weeks namely trimesters, these are first trimester, second trimester, and third trimester.

A trimester usually occurs between 12 and 14 weeks and a full-term pregnancy occurs at around 40 weeks.

In pregnancy, during the second-trimester blood pumps through the heart.

Thus, the correct option is A.

For more details regarding pregnancy, visit:

https://brainly.com/question/13922964

#SPJ5

Which type of mutation is likely to have the least affect on an organism

Answers

Answer:

Point Mutations

A point mutation—the change of a single nitrogen base in a DNA sequence—is usually the least harmful type of DNA mutation

Visit thoughtco for more information on the topic :)

Imagine that a scientist studies two traits in cattle. The scientist noticed that oval is dominant over triangular with regard to snout shape. Additionally, long is dominant over short with regard to tail length. To determine if these traits are linked, two individuals that are heterozygous for both traits were crossed. The data in the table represent the number of offspring produced by this dybrid cross. Phenotypic ratio represents the predicted proportion of offspring with each set of traits that would be produced if the traits independently assort. What can be determined about these traits based on Chi-square analysis?
A) These traits do not assort independently.
B) There are not enough data to calculate a Chi-square value.
C) A Chi-square analysis cannot determine linkage.
D) These traits assort independently.

Answers

Answer:

C. A Chi-square analysis cannot determine linkage

Chi-square test compares observed and expected results. This test determines if a difference between actual and predicted data is due to chance or a link between variables. Therefore, option (D) is correct.

What is chi square test?

Chi-square test compares observed and expected results. This test determines if a difference between actual and anticipated data is due to chance or a relationship between factors. The chi-square test is ideal for interpreting the relationship between two categorical variables.

The Chi-Square Test of Independence examines whether two sets of variables are related. This non-parametric test uses counts of two nominal or categorical variables. This test requires a large sample and independent observations.

Learn more about chi square, here:

https://brainly.com/question/14082240

#SPJ5

The chemical groups into which hormones can be divided include

Answers

I think they’re
1.Lipid-derived
2.amino acid-derived
3. Peptides

1. The amount of adenine is equal to the amount of thymine, and the amount of guanine is equal to the amount of uracil in RNA.

True or False?

2. The correct steps of the scientific methods are: experiment, conclusion, exploration, application

True or False

Answers

Answer:

1,True

Explanation:

2, exploration -experiment-application -conclusion

1) False because thymine is absent in RNA.

2)False, correct order is exploration, experiment, application, and conclusion. Hence both statements are false.

What is RNA?

RNA (ribonucleic acid)is a nucleic acid, present in almost all organisms. It is single-stranded. In some organisms, it acts as genetic material. It constitutes of a ribose sugar, phosphate group, and nitrogen base and that are adenine, uracil, guanine, and cytosine. Uracil is present in RNA in place of thymine.

There are three types of RNA that are mRNA, tRNA, and rRNA. It does not obey Chargaff's rule. It has an important role in protein synthesis by ribosomes through the translation process.

The correct order of scientific method is exploration, experiment, application, and conclusion. Hence both statements are false.

Learn more about RNA, here:

https://brainly.com/question/20914096

#SPJ2

(a) Describe the possible genotypes of the heart cells of an individual if meiosis in this

individual results in two sperm cells carrying the f allele and two sperm cells carrying the

F allele.

Answers

Answer:

The possible genotype is Ff

Explanation:

The possible genotype of the heart cells of such individual would be Ff.

Meiosis usually results in the formation of daughter cells with haploid number of chromosomes from parent cells with diploid number of chromosomes. The chromosomes in the parent cells are usually halved in the daughter cells.

The cells of the heart will have diploid number of chromosomes because they are vegetative cells while the sperm cells will usually have haploid number of chromosomes because they are sex cells.

Consequently, the heart cells of an individual will contain twice the chromosome number present in the sperm cells of such individual.

Hence, if meiosis results in the formation of sperm cells with F and f genotypes in an individual, it simply means that any diploid cell in that individual will have the Ff genotype.

The possible genotype is Ff

The following information should be considered:

 Meiosis normally arise when the daughter cells are created along with haploid number of chromosomes from parent cells with diploid number of chromosomes. The chromosomes in the parent cells are normally halved in the daughter cells. The heart cells should have diploid number of chromosomes since they are vegetative cells while on the other hand the sperm cells will normally have haploid number of chromosomes. Due to this, the heart cells of an individual will comprise of twice the chromosome number that are present in the sperm cells of such individual.

Learn more: https://brainly.com/question/1368131?referrer=searchResults

A 45 year old man had coronary artery stents placed 2 days ago. Today, he is in severe distress and reporting crushing chest discomfort.

Answers

Answer:

idk man

Explanation:

Humus represents _____ of the soil composition to 5% b) 60% c) 25% d) 15% e) 50%

Answers

Answer:

The correct answer is B, 60%

Explanation:

Humus, which ranges in color from brown to black, consists of about 60 percent carbon, 6 percent nitrogen, and smaller amounts of phosphorus and sulfur

The color of the mustard plant in Lab 4 (Natural Selection) was determined by a single gene with two alleles (Y or y). The Y allele was dominant to y allele, and Y gave us a green plant, and yy a yellow-green plant. You measure the following genotype frequencies: YY = 0.5; Yy = 0.25; yy = 0.25. You calculate the following Hardy-Weinberg Frequencies: YY = 0.30; Yy = 0.56; yy = 0.14 This population looks like it has evolved. We can tell this because : Group of answer choices

Answers

Answer and Explanation:

It occurs evolution whenever the allelic frequencies in the genic pool change. If the population is not in Hardy-Weinberg equilibrium, it is because one, some, or several of the model's assumptions are not met. If we want to know if a population is evolving, we must observe the frequencies of the population, and if they change over time. If there is a change, it might also be reflected in the phenotypic frequencies.

In the exposed example there was an evident change in the population genetic frequencies.

1) Genotype frequencies: YY = 0.5; Yy = 0.25; yy = 0.25

Genic or Alleleic frequency:

Frequency of y= f(q)= √0.25 =0.5Frequency of Y= f(p)= 1- 0.5 =0.5

2) Hardy-Weinberg Frequencies: YY = 0.30; Yy = 0.56; yy = 0.14

Genic or Alleleic frequency:

Frequency of y= f(p)= √0.14 =0.374

Frequency of Y= f(p)= 1- 0.5 =0.626

The allelic frequencies and hence the genotypic frequencies changes, so we can assume that there was evolution.                                          

A tall sheep is crossed with a short sheep, and the progeny are all intermediate in size between

the two parental sheep. This could be an example of? ​

Answers

Answer:

Incomplete dorminance.

Explanation:

Incomplete dorminance occurs when two heterozygous alleles are expressed together which is as a result of dorminant alleles not completely masking the recessive alleles and the two alleles blend together and are expressed phenotypically.

The above question is incomplete dorminance because the allele for tallness in the sheep does not completely mask the allele for shortness and these two alleles blend together to produce intermediate progeny that are expressed phenotypically.

What is the control center of a cell?

Answers

Answer:

Hi there,i hope you are having a wonderful day,

The nucleus

Explanation:

The nucleus is the most centered part of the cell which controls and coordinates activities taking place in the cell

Answer:

the nulsus

Explanation:

Complete the following sentences about heme by moving the terms to the correct targets Some terms will not be used.
1. The prosthetic group of hemoglobin and myoglobin is_______.
2. The organic ring component of heme is_______
3. Under normal conditions, the central atom of heme is________.
4. In________the central iron atom is displaced 0.4 A out of the plane of the porphyrin ring system.
5. The central iron atom has_______bonds:________to nitrogen atoms in the porphyrin, one to a_______residue and one to oxygen.
A. Oxyhemoglobin
B. Six
C. Four
D. Three
E. Histidine
F. Heme
G. Serine
H. Fe2+
I. Deoxyhemoglobin
J. Cysteine
K. Fe3+
L. Porphyrin

Answers

Answer:

1. The prosthetic group of hemoglobin and myoglobin is heme.

2.The organic ring component of heme is porphyrin ring.

3. Under normal conditions, the central atom of heme is Iron (Fe2+).

4. In deoxyhaemoglobin the central iron atom is displaced 0.4 A out of the plane of the porphyrin ring system.

5.The central iron atom has six bonds: four to nitrogen atoms in the porphyrin, one to a histidine residue and one to oxygen.

Explanation:

1. The heme is the prosthetic group common to both the hemoglobin and myoglobin. It is made up of a central iron ring.

2. The porphyrin ring is the organic component of the heme that surrounds the iron ring. Its based on a tetrapyrole ring called porphin commonly found in other biomolecules such as cytochrome and chlorophyll in plants

3. Iron (Fe2+) is central to the heme structure. It has the ability to bind to an oxygen molecule at a time. This gives the protein- hemoglobin the ability to bind to 4 oxygen molecules at a time.

4. Deoxyhaemoglobin is simply a reduced form of hemoglobin which has lost oxygen molecule in red blood cells. It is purple blue in colour.

5. In the middle of the porphyrin ring, the iron binds to 4 nitrogen atoms. 2 free binding sites are available on either side of the plane heme structure with histidine surounding the heme molecule.

Select the correct answer.
Why is the Circum-Pacific belt shown on this map called the Ring of Fire?
OF
Aleutian trench
Mt. Garibaldi
Mt St. Helens
RUNG
Kunie trench
Japan trench
izu Ogasawara trench
Ryukyu trench
Philippine
Mt Piatubod trench
Marianas trench
y Mayon
Challenger Deep
Krakatoa
Bougainville trench
FIRE
Middle America
trench
Equator
Java (Sunda)
trench
Tonga trench
Peru-Chile trench
Kermadec trench
ОА.
ОВ.
C.
A fire burns continuously there.
It is prone to earthquakes and volcanoes.
The entire region has a high risk of wildfires.
The best fireworks happen there.
These regions are on the equator and receive direct sunlight.
OD
O E.

Answers

Answer:

B

Explanation:

 The Ring of Fire, also referred to as the Circum-Pacific Belt, is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes.  

Earth’s rain forests are the biomes with the greatest biodiversity because they have
A. Very little moisture
B. Primary disturbances
C. Cyclical Disturbances
D. Stable ecosystems

Answers

Answer:

c . cyclical disturbances

Stable ecosystem your welcome

While doing research on deep-sea vents, you discover a very simple new life form. After some initial analysis, you find that this life form contains small fragments of DNA, small complementary RNA fragments, and proteins. Fortuitously, you collected two strains, one that is purple and one that is yellow. You wish to discover which of those three molecules could be the genetic material. You heat-kill some of the purple life form and subject three different homogenized samples to different enzymes: DNase, RNase, or protease. Which treated sample(s) will transform yellow into purple IF RNA is the genetic material

Answers

Answer:

The one treated with DNase and protease

Explanation:

The samples that will transform yellow into purple if RNA is the genetic material are the ones treated with DNase and protease respectively.

The treatment of the heat-killed sample of the purple life with DNase will ensure that the DNA in the sample becomes degraded while treatment with protease will ensure that protein is degraded, leaving only the RNA. Thus, the RNA can be taken up by the yellow life form and become transformed into purple if indeed RNA is the genetic material.

The sample treated with RNase cannot transform the yellow life into purple because the RNase catalyzes the degradation of RNA into smaller components.

write down two differences between axon and dendrites. ​

Answers

Answer:

Axon takes information or impulse away from the cell body, whereas Dendrites bring information or impulse to the cell body of the neuron.  Axons are long and single per cell and dendrites are short and multiple Axons don't have any ribosomes and Dendrites do.

Complete each sentence by dragging the proper word or phrase into the appropriate position. Then place each sentence in order from the largest to the smallest cavity size being described
Drag the text blocks below into their correct order.
1. The________ are found deep in the diaphyses of long medullary cavities bones and are filled with yellow marrow in the adult.
2. Osteocytes maintain contact with neighboring osteocytes in adjacent lamellae via dendrite-like extensions through __________
3. Filled with matrix, , which are osteoblasts encased in perforating canals are found between layers of concentric lamellae nutrient foramen
4. Located in the middle of osteons, the contain the osteocytes blood vessels, and nervous supply of the compact bones. osteons
lacunae
central canals
canaliculi

Answers

Answer:

The medullary cavities are found deep in the diaphyses of long medullary cavities bones and are filled with yellow marrow in the adult.

Osteocytes maintain contact with neighboring osteocytes in adjacent lamellae via dendrite-like extensions through canaliculi.

Filled with osteocytes, which are osteoblasts encased in matrix, lacunae are found between layers of concentric lamellae.

Located in the middle of osteons, the central canal contain the blood vessels, and nervous supply of the compact bones

Explanation:

- The medullary cavities are central cavities in the bones. In adults, these cavities are filled with yellow marrow  (adipose tissue).

- The canaliculi are small protoplasmic projections between the lacunae of ossified bones.

- The astrocytes are the most common type of bone cell.

- The lacunae are spaces where osteocytes are located in the mature bones

-  The central canal provides nourishment to the osteocytes which collectively form the osteon.

Victoria pushes on a wall in front of her with a force of 25 N while she is
standing on roller skates. Which of the following is true?
A. A force less than 25 N pushes back on Victoria.
B. A force greater than 25 N pushes back on Victoria.
C. No force pushes back on Victoria because the wall doesn't move.
D. A force of 25 N pushes back on Victoria.
US

Answers

The correct answer should be B

Drag the tiles to the boxes to form correct pairs match the type of water with the location in which it is found

Answers

The correct answers are water vapor- atmosphere; surface water -river; ice- glacier; and groundwater -well

Explanation:

Water is an abundant substance on Earth that exists in all states in it. This includes liquid water, which can be found on the Earth surface in water bodies such as rivers, oceans, lakes, ponds, etc. This implies the word that matches surface water is rivers. Additionally, this type of water is usually the ecosystem for many organisms. Besides this, liquid water can be found under the surface, which is known as groundwater, this is located under rocks and soil, despite this, it can be extracted and used for consumption, and one way to do this is through wells. Thus, the word that matches groundwater is well.

On the other hand, water can be found in a gaseous state as this evaporates from the surface of Earth, then raises to the atmosphere, and forms clouds. Thus, the main source of water vapor is the atmosphere. Also, this changes its states as it condensates and falls in the form of rain. Finally, water can be found in solid-state in ice, which is abundant in glaciers, the poles of the Earth, and at high elevations, because ice is the result of water being exposed to low temperatures. Thus, the word that matches ice is glacier.

Answer:

Ice: glacier

Groundwater: A Well

Water Vapor: Atmosphere

Surface Water: The river

Explanation:

PLATO answers

Help me ! Please man I need help !!

Which is a lymphocyte?
O A. Amylase
Ο Ο
B. Macrophage
O C. Urethra
D. B cell

Answers

Answer:

Lymphocyte is a B cell ans - option D

NASA’s Kepler mission found evidence of several potentially habitable exoplanets, raising the possibility that life may have evolved independently outside of our solar system. If NASA found a novel lifeform, we would expect it to use energy molecules based on similar principles as lifeforms on Earth. The organism would likely use molecules with _____________ bonds. It might use two separate molecules, one serving as a rapidly utilizable energy currency and another molecule serving as long-term energy storage.
a. high energy.
b. low energy.
c. hydrogen.
d. electrostatic

Answers

Answer:

c. hydrogen.

Explanation:

Earth is full of different substances. Hydrogen bonding is  a partial inter molecular bonding between a lone pair and an electron rich donor. Some of the most important molecules here on earth are held by hydrogen bonding.

Hydrogen bonding is useful in inorganic and organic molecular combination.

if the climate is hot what will happen to the water cycle, and if the climate is cold what will happen to the water cycle?​

Answers

Answer:

Climate change intensifies this cycle because as air temperatures increase, more water evaporates into the air. Warmer air can hold more water vapor,

So, higher temperatures means more evaporation while low temperatures means less evaporation.

TP53 is a recessive gene and is not located on the X chromosome, why would people who inherit just one mutant copy of a recessive tumor-suppressor gene be at higher risk of developing cancer than those without the recessive gene?

Answers

Answer:

Explanation:

Since it is a recessive gene, tumor suppressor genes required the inactivation of both alleles, this is usually accomplished by the mutation of one allele and a targeted homozygous deletion of the second allele. This leads to an effective inactivation of the suppressor genes with the mutations acting a a dominant negatives. This way, patients are put at a higher risk of developing cancer


time._______________
is the relative temperature of a region over
O C. rain pattern
O B. climate
O A. weather
O D. wind currents​

Answers

Answer: choice B. Climate

Explanation:

Climate is the relative temperature of a region over time.

The body can get water from milk, juices, fruits, and vegetables.
Please select the best answer from the choices provided.
ОТ
Ο Ε

Answers

Answer:

your answer is true

Explanation:

why do you think we tell you kids to eat your Vegetables

The body getting water from milk, juices, fruits, and vegetables is True.

What is Water?

This is defined as a universal solvent and comprises of two elements known as Hydrogen and oxygen.

Water is present in all food forms and is usually extracted during digestion in the large intestine and transported to other parts of the body.

Read more about Water here https://brainly.com/question/5060579

what is the purpose of RNA​

Answers

RNA, in one form or another, touches nearly everything in a cell. RNA carries out a broad range of functions, from translating genetic information into the molecular machines and structures of the cell to regulating the activity of genes during development, cellular differentiation, and changing environments.

-google

Answer:

RNA is to carry info of amino acid sequence from the genes to where proteins are assembled on ribosomes in the cytoplasm

Select all that apply. Which of the following are vertebrates? earthworms grasshopper lancelets octopus crab amphibians tunicates starfish

Answers

Answer: amphibians

Explanation:

earthworms, grasshopper, lancelets, octopus, crab, tunicates, starfish are all invertebrates.

lancelets(cephalochordata) and tunicates(urochordata) are chordates but do not have a backbone.

Hii!! The correct answer is amphibians. (:

You are hiking in a forest and come upon a mysterious plant, which you determine is either a lycophyte sporophyte or a pterophyte sporophyte. Which of the following would be most helpful in determining the correct classification of the plant?
A) whether or not it has true leaves
B) whether it has microphylls or megaphylls
C) whether or not it has seeds

Answers

Answer: choice A

Explanation:

The main difference between pterophytes and lycophytes is the presence of true leaves(pteropytes) and lychophylls(lychophytes). Having lycophylls is a synapomorphy for the lychophytes.

Neither of these clades have seeds.

what stage in the cell cycle does the dna replicate and cell grows?

Answers

Answer:

Interphase

Explanation:

Interphase is made of  G1, S and G2 phases. In G1, cells basically fuel up on necessary nutrient and see if nutrients are available to sustain a dna replication. Then in S phase, DNA replicates. Then in G2, cell checks if there's any error in replication, if none detected some more nutrient checks are performed and then cell proceeds to mitosis.

Other Questions
Zoe is making a quilt using 15 red squares and 30 green squares. Which combination shows the same ratio of red squares to green squares? help me please, for science Can someone please write a short summary of the New Deal programs? The Importance of Competition A competition is a great way to engage students to be more interested in school activities because it adds a "fun" element to the learning process. Competitions are also known to motivate some students. But are competitions always healthy? Is being part of competitions the only way to prove capability? Students' families should not force students to participate in competitions. The idea of winning a competition may be so demanding that a student may concentrate all of his or her efforts on preparing for the competition over other things. This may create an imbalance in the student's life. Students might also neglect their studies because they are intent at being successful in only one thing. This fear of losing may also make students overwork, which can have a negative effect. Moreover, it is obvious that any competition will have only one winner, and the others have to brace themselves for disappointment. Sometimes, even though a person may perform well, he or she may lose a competition to someone who performs slightly better. This disappointment can affect the confidence of the competitor, and therefore, his or her performance. Thus, competitions can have a negative impact on students.What claim is made by the author in the passage?A.) Competitions do not improve students' interest in school activities.B.) The demands of competing may cause students to get anxious.C.) Students do not have the time to participate in school activities.D.) Students are trying to balance both studies and other activities. The iodine changes color in the presence ofA starchA hydrocarbonA sugarA protein Lockes belief in a person Which is equivalent to 64 Superscript one-fourth? Read the sentence from Alexander's paper. When asked if she was loyal enough to become a secret agent, Keysha answered in the affirmative. In which revised sentence did Alexander change the underlined word to use it as an noun? Melanie makes $3.00 less per hour babysitting than her best friend, Carita. If the combined hourly rate of Melanie and Carita is $15.00, how much does Melanie make per hour? A. $3.00 B. $6.00 C. $9.00 D. $12.00 I need help ASAP I shall give brainlyist (idk how to spell) Which is the best example of the secondary source document useful in the study of history Why do elderly persons often develop bowed back and appear to lose height? A system of equations has 1 solution. If 4x - y = 5 is one of the equations, which could be the other equation?O y=-4x + 5O y = 4x-5O 2y = 8x - 100 -2y = -8x - 10 Explain the reasoning behind her statement, That is not a man. That is a toothless rat How do you solve the inequality 2x-3 1. Read the passage. Then answer the question. The Road Not Taken by Robert Frost Two roads diverged in a yellow wood, And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth; Then took the other, as just as fair, And having perhaps the better claim, Because it was grassy and wanted wear; Though as for that the passing there Had worn them really about the same, And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day! Yet knowing how way leads on to way, I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence: Two roads diverged in a wood, and I I took the one less traveled by, And that has made all the difference. What is a theme of The Road Not Taken? How does the writer develop the theme? Write at least two paragraphs in which you trace the development of the theme of the poem and analyze how specific details shape the theme. Use evidence from the text to support your response. Your response should be two or three complete paragraphs. A white tail deer can sprint at speeds up to 30 mph American bison can run at speeds up to 3520 ft./min. which animal is faster and by how many miles per hour The following data shows prices of meal options at Bob's Burgers. Bobwants to construct a histogram from this graph. Prices of Meal Options atBob's Burgers: $6, $7, $7, $8,$9,$10, $10, $11, $11, $12,$12, $13, $13, $13,$13,$14, $14, $14, $15, $15, $15, $15, $16, $16, $17. How many meals couldbelong in the interval $10.99 - $13.99? * what is evolutionary mechanism?pls help>-< Jeremy analyses one of his parachute jumps. He draws a graph showing his velocity up to the opening of his parachute. a) Estimate Jeremy's acceleration at t = 10s to 1 decimal place. b) Estimate his average speed for this part of the jump. Give your answer to two significant figures.