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If species are said to have a common ancestor, it means they are believed to have descended from a single, shared ancestor species in the past. This indicates that despite differences observed in the species today, they share a genetic and evolutionary heritage that links them back to a common origin.
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What does the scientific term species mean?
A species is a group of organisms that are capable of interbreeding and producing fertile offspring. They share common characteristics and are distinct from other groups of organisms. The concept of a species is fundamental in biology for classifying and studying the diversity of life on Earth.
Two species are said to be closely related if they?
Have several similar characteristics or similar backgrounds. Like, the snake and the lizard are related because they are both reptiles, they are both cold blooded, they both have scales, etc. Or the bunny and the whale are both related because they are mammals, but not having to do anything with the outward appearance. So it really depends on what animals you are comparing!
When no living member of a species exist the species?
When no living member of a species exists, the species is considered extinct. Extinction occurs when a species has completely disappeared from the Earth, with no individuals remaining alive anywhere in the world.
What is Charles Darwin's theory of evolution on the creation of human beings?
The general theory was that everything (humans included) come from a common ancestor. This makes sense if one was to believe in the cell theory (all existing cells come from previous cells, therefore everything in the world had to start with a single cell, our common ancestor). You need to know the general theory to understand the theory as it regards to humanity. The theory regarding humanity still stands that we all come form one ancestor. but it focuses more on the human aspect. Here it states that we evolved along with primates, (we share the same ancestor as monkeys, apes, etc.). The theory particularly states that humans evolved from ancient primates over the course of over 250,000 years to become what we are today. Fast fun fact Charles Darwin did not come up with the theory of human evolution, he only said something akin to "light will shed upon the origin of man" saying nothing that men came from apes or ancient primates.
What is the difference between a homologous structure and a analogous structure?
Homologous structures are different forms of animal anatomy which have come from the some origin (a common ancestor), these can be extremely different in appearance and function. For example a bats wing, a seals flipper and a human arm all have common bone and muscle structures suggesting that they all derived from a common ancestor. Vestigial structures are parts of the anatomy which have lost their original function through the evolutionary process and no longer obtain a major functional role in that animals life. For example in human the appendix's original function was to break down cellulose in plant material, other vestigial functions in humans include the coccyx (tailbone) and ear muscles.
Two species are said to be related if they share the?
Two species are said to be related if they share a common ancestor. This means that they have evolved from a common predecessor and have similarities in their genetic makeup and physical characteristics. The degree of relatedness is determined by how recently they diverged from this common ancestor.
The bones in the forelimbs of mammals are said to be?
homologous structures, meaning they share a common evolutionary origin despite serving different functions in various species. For example, the bones in the forelimbs of humans, bats, and whales all evolved from a common ancestor but have adapted to perform tasks like flying, swimming, or grabbing.
When a species permanently disappears the species is said to be?
When a species permanently disappears the species is said to be extinct.
What If all members of a species disappear from Earth the species is said to be?
The species is said to be extinct.
What does the scientific term species mean?
A species is a group of organisms that are capable of interbreeding and producing fertile offspring. They share common characteristics and are distinct from other groups of organisms. The concept of a species is fundamental in biology for classifying and studying the diversity of life on Earth.
What led Darwin to believe that organisms originate from a common ancestor?
Darwin observed that high birthrates and a shortage of life's necessities forced organisms into a constant "struggle for existence", both against the environment and against each other is which led Darwin to propose his theory of constitution
Two species are said to be closely related if they?
Have several similar characteristics or similar backgrounds. Like, the snake and the lizard are related because they are both reptiles, they are both cold blooded, they both have scales, etc. Or the bunny and the whale are both related because they are mammals, but not having to do anything with the outward appearance. So it really depends on what animals you are comparing!
A species that has few surviving members is said to be?
A species that has few surviving members is said to be endangered.
What species that dies out are said to be?
A species that dies out is said to be extinct. If this doesn't answer your question, please let me know.
When no living member of species exist the species?
when there are no living members of a species the species is said to be "extinct".
When no living members of a species exists the species .?
when there are no living members of a species the species is said to be "extinct".
When a species permanently disappears the species is said to be what?
It becomes extinct.
