what function did molecular signals and receptors have in the protistan ancestors of complex organisms?

Q: What are the different Pre-zygotic and Post-Zygotic Reproductive Barriers?

A: Acvording to our guideline we can answer only the first question with three subparts. You hava…

Q: Why is 'protists' considered a polyphyletic grouping? Why do biologists still use it?

A: Protists are a diverse collection of organisms that are primarily microscopic and unicellular , or…

Q: Which cell structures are unique toplants?

A: Plant cell structure: - It is a eukaryotic cell having well organized organelles and defined…

Q: Why does reductive acetogenesis predominate overmethanogenesis in many termites?

A: Acetogens are bacteria capable of producing acetate from H2and CO2 using the acetyl-CoA pathway…

Q: What does it mean for an organism to undergo alternation of generations especially in seaweeds and…

A: The phenomenon of alternation of generations is a prevalent life cycle pattern that is commonly…

Q: What structures likely encapsulated molecules creating primitive cells?

A: Primitive cells are defined as a unit of cell which consists exactly one lattice point and is…

Q: Why and how do you think the phenomenon of periodicity in filiarial worms evolved?

A: Microfilaria is the early Juvenile stage in many of the worms belonging to the group nematodes.…

Q: Differentiate between Phylum Porifera and Clade Eumetazoa. A)Poriferans are only haploid during…

A: The question is asking to differentiate between two biological classifications: Phylum Porifera and…

Q: Some non-plant organisms like the protist that spreads malaria contain a non-photosynthetic…

A: Protists are eukaryotic creatures that are neither plants, animals, nor fungi. Protists are…

Q: Certain protists species cause human disease that are difficult to treat and are often deadly. How…

A: Introduction  Any eukaryotic organism that is not an animal, plant, or fungus is referred to as a…

Q: What role did the increase of atmospheric oxygen by prokaryotes play in the development of the…

A: The studies on geological history of oxygen shows that before photosynthesis evolved, the earth's…

Q: How does secondary endosymbiosis help explain the diversity ofphototrophic eukaryotes?

A: A cell is the fundamental unit of life. All living organisms are made up of one or many cells. The…

Q: do eukaryotes have Pangenomes?

A: in metagenomics, pangenome is the complete cohort of the gene set of all strains of a given species…

Q: Why did researchers present unshelled periwinkles to the crabs?What do the results of this part of…

A: In this experiment researcher, removed the bodies of northern and southern periwinkles from their…

Q: How does nature keep insects under control?

A: Natural control of insects refers to the control of insects provided by natural processes, without…

Q: Plastids that are surrounded by more than twomembranes are evidence of(A) evolution from…

A: Plastides are double-membrane organelles that are present in plant and algae cells. Plastids are…

Q: If you were to create an evolutionary tree in which amoebas were included within the kingdom of…

A: Amoeba is a unicellular, aquatic organism having membrane-bound organelles. However, these…

Q: Why should unicellular ancestors, in which each cell had a prospect of reproduction, have given rise…

A: All living organisms in order to form body structure need one or more cells. The unicellular…

Q: How many types of plastids are there?

A: Plastids are the double membraned cell organelles found in the organisms under Kingdom Plantae.

Q: In how many ways tube within tube plan is evolved?

A: Animals have three types of body plans: cell aggregate plan, blind sac plan, and tube-within-a-tube…

Q: Give three examples of protists for which the classifications haverecently changed. In each case,…

A: Protozoa are free-living parasitic. They are different in shape and size. They live in a wide…

Q: What feature of protists allow them to survive harshenvironmental conditions?a. vegetative cellsb.…

A: Kingdom Protista comprises of eukaryotic organisms that thrive in aquatic and terrestrial habitats.…

Q: Why are embryological features important for distinguishing the major groups of phyla?

A: Taxonomy is the branch of biological sciences that deals with the identification and classification…

Q: Give an account in asexual reprodution by spore in algae?

A: The study of algae is called algology or phycology. The photosynthetic plants called algae. Algae…

Q: Which are the groups of living beings that form the protist kingdom?

A: A protist refers to all the eukaryotic organisms excluding plant, animal, and fungus. Protists are…

Q: Have aphids and their symbiotic bacteria coevolved?

A: Symbiosis is a type of animal-animal interaction in which both the species which are dissimilar live…

Q: The Phylum Animalia has some unique traits that set it apart from plants and fungi. Check all traits…

A: Animals (likewise called Metazoa) are multicellular eukaryotic living beings that structure the…

Q: How old are the oldest fossils of Eukaryotic cells?

A: The prokaryotic cell originated on the Earth around 3.8 billion years ago. These prokaryotic…

Q: (a) Describe the coevolutionary pattern that systematists look for (b) Name the evolutionary…

A: Scientists in ecology and evolutionary biology frequently debate three types of coevolution: paired…

Q: describe a scenario for the evolutionary origin of protist chloroplasts?

A: PROTIST - these are a diverse collection of organisms . While exceptions exist , they are primarily…

Q: How are forams useful for researchers to study changes in ocean temperature over time

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: What group of protists did biologists find were growing in the mama virus and mivirus ?

A: protists: protists are unicellular eukaryotic organisms usually living in areas with moisture. They…

Q: . chimeras form between genotypes

A: What is the evidence for conflict in Dictyostelium ? Ans.   ( b) chimeras from between genotypes.

Q: Under the endosymbiotic theory for the origin of the eukaryotic cell. The ancestor of mitochondria…

A: The Endosymbiotic Theory states that some of the cell organelles like mitochondrion and chloroplast…

Q: Give three examples of medically important excavate protists

A: Introduction Excavata is a large supergroup of unicellular creatures in the Eukaryota domain.…

Q: How are pseudopods formed in order to phagocytose particles or bacteria?

A: Cells are regarded as the simplest unit (structural and functional) of life. Cellular membrane,…

Q: Suppose you discover a new species of animal that does not have body segments, but is triploblastic,…

A: The question is asking to identify the phylum of a newly discovered species based on certain…

Q: In how many ways protists interact with other organisms?

A: The five main kingdoms used in the R.H. Whittaker categorization system are used to group organisms.…

Q: In what period would Archaeopteryx have been alive?

A: Archaeopteryx is a fossil. It is the link between reptiles and birds. Archaeopteryx is a descendant…

Microbial Physiology

Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.

Chemotaxis

The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.