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What is the most useful fact in determining whether two organisms are related?
DNA sequence similarity is the most useful factor in determining whether two organisms are related. The more similar the DNA sequences of two organisms are, the more closely related they are likely to be evolutionarily.
Which organisms have embryonic stages the most similar?
Organisms that are closely related evolutionarily tend to have embryonic stages that are more similar. For example, mammals such as humans and mice have similar embryonic stages due to their close evolutionary relationship. Conversely, organisms that are more distantly related, like mammals and insects, have more differences in their embryonic development.
Comparative suggests organisms that are more closely related have more similar embryo development?
Yes, that's correct. Comparative embryology studies the similarities and differences in embryo development among different species. It suggests that organisms that are more closely related evolutionarily tend to have more similar embryo development processes due to their shared ancestry. This comparative approach can provide insights into the evolutionary relationships between different species.
Why two groups of organisms with similar characteristics?
Two groups of organisms may exhibit similar characteristics due to convergent evolution, where unrelated species evolve similar traits as adaptations to similar environments or ecological niches. This can occur despite their different evolutionary lineages, highlighting how similar selective pressures can lead to analogous features. Additionally, shared ancestry can result in homologous traits, where related organisms possess similar characteristics due to inherited genes from a common ancestor.
Which organisms would look most alike Organisms in the same phylum Organisms in the same family Organisms in the same class Organisms in the same order?
Organisms in the same family would look most alike, as they share a more specific set of characteristics and traits compared to those in the same phylum, class, or order. The family classification is more closely related and typically reflects similar morphological and genetic features. In contrast, organisms within the same phylum or class may exhibit a wider range of diversity due to broader classification levels.
What is the most useful fact in determining whether two organisms are related?
DNA sequence similarity is the most useful factor in determining whether two organisms are related. The more similar the DNA sequences of two organisms are, the more closely related they are likely to be evolutionarily.
Which organisms have embryonic stages the most similar?
Organisms that are closely related evolutionarily tend to have embryonic stages that are more similar. For example, mammals such as humans and mice have similar embryonic stages due to their close evolutionary relationship. Conversely, organisms that are more distantly related, like mammals and insects, have more differences in their embryonic development.
Why are ants in the bee order?
Because they are evolutionarily related - they both had a common ancestor. They have similar body shapes and similar social behaviours.
Similar features in organisms that do not share a recent common ancestor are the result of what?
Similar features in organisms that do not share ancestry means both organisms adapted to their environment. They developed the features to survive.
Comparative suggests organisms that are more closely related have more similar embryo development?
Yes, that's correct. Comparative embryology studies the similarities and differences in embryo development among different species. It suggests that organisms that are more closely related evolutionarily tend to have more similar embryo development processes due to their shared ancestry. This comparative approach can provide insights into the evolutionary relationships between different species.
Why are organisms in different groups can be distant from each other and yet have sharedfeatures?
Organisms in different groups can be distant from each other but still have shared features due to a concept called convergent evolution. This occurs when different species independently evolve similar traits in response to similar environmental pressures or niches. As a result, organisms from diverse lineages can develop similar features even though they are not closely related.
What is it called when organisms evolve similar features?
Co-evolution.
Are homologous structures similar structures in related organisms?
yes
Why two groups of organisms with similar characteristics?
Two groups of organisms may exhibit similar characteristics due to convergent evolution, where unrelated species evolve similar traits as adaptations to similar environments or ecological niches. This can occur despite their different evolutionary lineages, highlighting how similar selective pressures can lead to analogous features. Additionally, shared ancestry can result in homologous traits, where related organisms possess similar characteristics due to inherited genes from a common ancestor.
Why are DNA sequences more similar in more closely related organisms?
DNA sequences are more similar in closely related organisms because they share a common ancestor and have undergone fewer genetic changes over time. As organisms diverge and evolve, mutations accumulate in their DNA, leading to differences in their genetic sequences. Therefore, closely related organisms have had less time to accumulate mutations, resulting in more similar DNA sequences.
What is the similar features that originated in a shared ancestor?
Homologous structures are features that originated in a shared ancestor, such as the bones in the limbs of vertebrates. These features may have different functions in modern organisms but have similar underlying structures due to their common ancestry.
3 Are the shell of a turtle and that of a snail homologous or analogous?
analogous because the two features are similar in function yet did not occur due to a shared ancestry. it would be considered homology if the two organisms were somehow related.
