What does it mean to say that two different species of organisms are closely related?

What does it mean to say that two different species of organisms are closely related? They have a common evolutionary ancestor.

Which structures show that organisms are more closely related?

In general, organisms that share similar physical features and genomes tend to be more closely related than those that do not. Such features that overlap both morphologically (in form) and genetically are referred to as homologous structures; they stem from developmental similarities that are based on evolution.

When two organisms are very distantly related in an evolutionary sense?

Question: Saved Question 1 (1 point) If two modern organisms are distantly related in an evolutionary sense, then one should expect that they live in very different habitats. they shared a common ancestor relatively recently. they should be members of the same genus.

At what point are two closely related organisms considered separate species?

At what point are two closely related organisms (such as the hummingbirds) considered separate species? If two populations change so much that they can not reproduce together, then they are considered two different species.

How is it possible for two species that look similar to be less related than two species who look completely different?

Homologous structures are similar in development, but may look very different on the outside. This typically happens because the two species are evolving in different pathways.

Which two animals are most closely related how do you know?

Answer: Humans, chimpanzees, gorillas, orangutans and their extinct ancestors form a family of organisms known as the Hominidae. Researchers generally agree that among the living animals in this group, humans are most closely related to chimpanzees, judging from comparisons of anatomy and genetics.

What are the two main evidences that help in determining evolutionary relationships differentiate between the two?

Scientists collect information that allows them to make evolutionary connections between organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.

How do you know if two organisms are the same species?

How do scientists normally determine if two organisms are of the same species? Organisms belong to the same species if they can interbreed to produce fertile offspring. Species are separated by prezygotic and postzygotic barriers, preventing mating or producing fertile offspring.

When two species both have similar anatomical structures that were inherited from the same ancestor that also had them the similarities are referred to as being?

Homologous features If two or more species share a unique physical feature, such as a complex bone structure or a body plan, they may all have inherited this feature from a common ancestor. Physical features shared due to evolutionary history (a common ancestor) are said to be homologous.

Can individuals of different but closely related species mate?

When members of different species attempt to interbreed, the result is usually complete failure. Occasionally, with closely related species, a sterile hybrid can form. Horses and donkeys are two different, but closely related, species. Horses and donkeys can interbreed, but their offspring, mules, are sterile.

How are two organisms related in evolutionary terms?

in evolutionary terms, the more closely related two different organisms are, the-less similar their DNA sequences are-more similar their habitats are-more similar they are in size-more recently they shared a common ancestor-less likely they are to be related to fossil forms

Why are organisms on islands different from other organisms?

The biological explanation for this observation is most properly associated with the field of It has been observed that organisms on islands are different from, but closely related to, similar forms found on the nearest continent. This is taken as evidence that

Why does the next generation of insects contain more genes?

The next generation of insects contains more genes from the survivors than it does from susceptible individuals Catastrophism, meaning the regular occurrence of geological or meteorological disturbance (catastrophes), was Cuvier’s attempt to explain the existence of…