Is there a common evolutionary pathway between host and parasite?

Q: What is an Endemic? Provide examples

A: Pandemic or epidemic can happen due to virus, bacteria or other infection agents. Endemic is found…

Q: Diversification of species can be driven by factors such as physiological or morphological features…

A: The acquisition of new species through diversification and their removal through extinction…

Q: Did Aphids Acquire Their Ability to Make CarotenoidsThrough Horizontal Gene Transfer?

A: Aphids refer to the small insects that belong to the Aphidoidea superfamily. Aphids are…

Q: What are the evidences for primary endosymbiosis?

A: Primary endosymbiosis: It is a process wherein a eukaryote starts to engulf another prokaryote and…

Q: What type of reproductive isolation is due to organisms that have different mating seasons?

A: Pre-mating secluding mechanism:  Elements which cause species to mate with their own sort…

Q: 4- Prezygotic barrier, isolation, include: a) Habitat isolation b) Zygote is formed c) Genetic…

A:

Q: How many genes influence the formation of new species?

A: Formation of new species is known as speciation. In speciation, two different population must breed…

Q: How Many Species Exist?

A: The earth consists of two main factors- biotic and abiotic. The biotic factors are the living…

Q: Ernst Mayr defined a biological species as a population whosemembers can exchange genetic material…

A: Introduction  Gene transfer is referred to the process in which the DNA (Deoxyribose Nucleic Acid)…

Q: Where does the translocation of food and other substances takes place?

A: Introduction  Plants are autotrophs which means they can produce their own food, they do so by the…

Q: What is the serial endosymbiosis hypothesis?

A: Endosymbiosis is a type of symbiosis in which one organism lives inside the other, and the two…

Q: Draw a simple cladogram illustrating the relationships among the following: Common ancestor of all…

A:

Q: How are new species thought to originate?

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: How may host preference eventually lead tospeciation?

A: Speciation is a lineage- splitting evolutionary process that produces two or more separate species.…

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: What are the advantages and disadvantages to a solitary versus colonial existence?

A: Animals of this planet may live in groups and may live alone or solitary. The behavior of all the…

Q: What is the “cost of males” in outcrossing reproducing species compared to obligate self-fertilizer…

A: Males can be expensive in outcrossing reproducing species when compared to obligate self fertilizers…

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: Why do some species survive while others go extinct? Explain

A: In a due course of time, it is believe that our ancestral species that lived in different parts of…

Q: Horizontal gene transfer between insects and their symbionts causes genome reduction in both the…

A: Choice A (causes genome reduction in both the host and the symbiont) is wrong because while it is…

Q: Explain symbionts and its role?Explain symbionts and its role?

A: Symbiosis is any type of a close and long-term biological interaction between two different…

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: What are the consequences of symbiont genome reduction?

A: About one million of insect species are known today. They are the most abundant class of living…

Q: How long ago did species begin to move from water to land? What period was this?

A: The Paleozoic era began with the Cambrian period 542 mya. It was the age of marine invertebrates.

Q: We often imply that are multicellular organisms more advanced (and thus more successful) than…

A: They still are thriving- High reproductive rates

Q: What are the differences in the life cycle of mosquitoes and butterflies?

A: In some animals, the young ones are different from their adults. There are many features that are…

Q: In the figure, if a plant and human mitochondrial genome contain the same gene (homolog), did they…

A: If a plant and human mitochondrial genome contain the same gene (homolog), they likely inherit the…

Q: What are species?

A: An organism is any individual entity that embodies the properties of life. An organism has an…

Q: On the tree of life, sex is: A) a synapomorphy for bacteria and archaea B) a symplesiomorphy for…

A: These are some questions regarding sexual reproduction.

Parasitic infections

A parasite is an organism that lives in the body of another organism and obtains food at the expense of the host. There are two kinds of parasites they are internal and external. An internal parasite lives inside another organism and is known as endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite.