Introduction: Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

Answer to Problem 1TY
Correct answer: Choanomonada can be used to study the evolution of cell-to-cell signaling mechanism in animal cells. Hence, the correct answer is option c.
Explanation of Solution
Reason for correct answer:
Choanoflagellates, also known as Choanomonada, are eukaryotic organisms. These organisms are believed to be the species that have closest association with the multicellular organisms (especially animals). Choanomonada and animals have a similar cell-to-cell signaling mechanism. Therefore, Choanomonada can be used to study the evolution of animal-specific cell-to-cell signaling system.
Option c. is given as “Choanomonada”.
The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. Hence, the correct answer is option c.
Reasons for incorrect answer:
Option a. is given as, “Rhodophyta”.
Rhodophyta is also known as red algae and they are able to perform photosynthesis. Photosynthesis is a process observed in plants and not in animals. This indicates that Rhodophyta represents a close association with plants. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option a. is incorrect.
Option b. is given as, “Excavata”.
Excavata cannot be used to study the evolution of cell-to-cell signaling mechanism in animal cells. This is because, they include both photosynthetic and heterotrophic organisms. They do not resemble animal cells as animals do not perform photosynthesis. Hence, option b. is incorrect.
Option d. is given as, “Radiolaria”.
Radiolarian lives in an aquatic habitat and they are heterotrophic in nature. They cannot be used to study the evolution of cell-to-cell signaling system as they do not share similarities with the animal cells. Hence, option d. is incorrect.
Option e. is given as, “Chlorophyta”.
Chlorophyta is also referred to as green algae. They contain the same photosynthetic pigments that are present in the plants. Chlorophyta performs photosynthesis and shows a close association with plants and not animals. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option e. is incorrect.
Hence, the options a., b., d., and e. are incorrect.
The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. This is because, they show a close association with animal cells.
Want to see more full solutions like this?
Chapter 28 Solutions
BROOKER BIO 3-HOLE PUNCH W/CONNECT BUND
- Plekhg5 functions in bottle cell formation, and Shroom3 functions in neural plate closure, yet the phenotype of injecting mRNA of each into the animal pole of a fertilized egg is very similar. What is the phenotype, and why is the phenotype so similar? Is the phenotype going to be that there is a disruption of the formation of the neural tube for both of these because bottle cell formation is necessary for the neural plate to fold in forming the neural tube and Shroom3 is further needed to close the neural plate? So since both Plekhg5 and Shroom3 are used in forming the neural tube, injecting the mRNA will just lead to neural tube deformity?arrow_forwardWhat are some medical issues or health trends that may have a direct link to the idea of keeping fat out of diets?arrow_forwardwhat did charles darwin do in sciencearrow_forward
- fa How many different gametes, f₂ phenotypes and f₂ genotypes can potentially be produced from individuals of the following genotypes? 1) AaBb i) AaBB 11) AABSC- AA Bb Cc Dd EE Cal bsm nortubaarrow_forwardC MasteringHealth MasteringNu × session.healthandnutrition-mastering.pearson.com/myct/itemView?assignment ProblemID=17396416&attemptNo=1&offset=prevarrow_forward10. Your instructor will give you 2 amino acids during the activity session (video 2-7. A. First color all the polar and non-polar covalent bonds in the R groups of your 2 amino acids using the same colors as in #7. Do not color the bonds in the backbone of each amino acid. B. Next, color where all the hydrogen bonds, hydrophobic interactions and ionic bonds could occur in the R group of each amino acid. Use the same colors as in #7. Do not color the bonds in the backbone of each amino acid. C. Position the two amino acids on the page below in an orientation where the two R groups could bond together. Once you are satisfied, staple or tape the amino acids in place and label the bond that you formed between the two R groups. - Polar covalent Bond - Red - Non polar Covalent boND- yellow - Ionic BonD - PINK Hydrogen Bonn - Purple Hydrophobic interaction-green O=C-N H I. H HO H =O CH2 C-C-N HICK H HO H CH2 OH H₂N C = Oarrow_forwardFind the dental formula and enter it in the following format: I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format) Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).arrow_forward12. Calculate the area of a circle which has a radius of 1200 μm. Give your answer in mm² in scientific notation with the correct number of significant figures.arrow_forwardDescribe the image quality of the B.megaterium at 1000X before adding oil? What does adding oil do to the quality of the image?arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeBiology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning




