Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms?
a. sequence the same gene in both species to compare their similarity.
b. dissect specimens of both species to look for homologous structures.
c. search fossil databases to locate a common ancestor.
d. evaluate cells from both species to determine whether they contain enzymes.
I have two pictures; one of an orange starfish and another of a medium-sized green snake. I am having trouble deciding on this, but I think it is either A or B.
people say all the answers are
D
B
A
C
but it might be for another school considering that it is only put on the first one so take the risk if you want
im in connexus
I just did it and got 100 so yeah those are the answers
To determine the most effective and easiest method for determining the evolutionary relationship between the orange starfish and the medium-sized green snake, let's evaluate the given options:
a. Sequence the same gene in both species to compare their similarity.
To determine the evolutionary relationship, you can choose a specific gene that is present in both the orange starfish and the green snake. The DNA sequence of this gene can be analyzed and compared between the two species. By looking for similarities and differences in the gene sequence, you can gain insights into their evolutionary relationship. This approach is known as molecular phylogeny and is a commonly used method in evolutionary studies. However, it may require specialized laboratory techniques, expertise, and access to DNA sequencing facilities.
b. Dissect specimens of both species to look for homologous structures.
This approach involves comparing the anatomical structures between the orange starfish and the green snake. By dissecting and examining the organisms' organs, limbs, or other body parts, you can search for homologous structures - structures derived from a common ancestor. Finding similar structures suggests a closer evolutionary relationship. Dissection may require knowledge in comparative anatomy and access to specimens, making it more suitable for professionals or researchers.
c. Search fossil databases to locate a common ancestor.
Searching fossil databases can provide valuable information about past organisms, including potential common ancestors between the orange starfish and the green snake. By examining the fossils, you can identify transitional forms and find similarities in their morphology. However, depending on the availability of relevant fossils and the completeness of the fossil record, this method may not be as straightforward or effective as the previous options.
d. Evaluate cells from both species to determine whether they contain enzymes.
This option does not directly address the question of determining evolutionary relationships. Evaluating cells to determine enzyme presence is more relevant for metabolic or biochemical research rather than investigating the evolutionary connections between organisms. Therefore, it is not the most suitable approach in this particular scenario.
Considering the given options and the available resources, the most effective and easiest method to determine the evolutionary relationship between the orange starfish and the green snake would be to sequence the same gene in both species (option a). By comparing the DNA sequence, you can obtain immediate and accurate information about their genetic similarity and, therefore, their evolutionary relationship.