vocabulary 1
1. DNA sequences
2. Homologous structures.
3. Paleontologist
4. analogous structures
5. fossils
6. vestigial
7. Comparative embryology
8. Comparative anatomy
vocabulary 2
1. DNA sequences
2. Analogous structures
3. Comparative anatomy
4. Fossils
5. vestigial
6. homologous structures
7. Comparative embryology
8. structure
9. Scientists
Explanation:
1. Human and apes are evolutionarily closely related based on the analysis of their DNA sequences.
2. Wings of bats and birds serve the same function and are analogous structure.
3. Comparative anatomy is the study of the similarities and differences in structures in similar species.
4. Fossils demonstrate that during the evolution of the whale, the whale moved from land to the sea.
5. The human tailbone and appendix are vestigial organs.
6. The homologous structures are structures that are similar in related organisms because they were inherited from the common ancestor.
7. Comparative embryology is the study of similarities and differences in the embryo of different species.
8. The forelimb of all the mammals has basic bone structure.
9. Scientists who find and study fossils are called paleontologists.
Wasps laying eggs inside hornworms and after the eggs hatch, the wasp larvae feed on the hornworm is the example of parasitism.
Explanation:
There are five types of relationships in an ecosystem. One of the relationships is parasitism. When we define ecosystem, we talk about the kind of interaction that there is between two or more different species.
Parasitism is the type of interaction between two species, in which one species, most likely a parasite, latches itself onto the other species. That other species then becomes a host to the parasite. After latching itself, it becomes dependent on it's host for resources like food and shelter. But, in this type of relationship, the host species is harmed for resources while the parasite species gains strength over time.
The variable that researchers manipulate is the independent variable.
The reason for this is because in experiments different manipulations are often introduced. The sole purpose of these manipulations is to see whether they will affect our independent variable and if they will change its value.
The answer is B)<span> </span>temporal isolation.
<span>
<span>Temporal isolation is a type of reproductive isolation, which could be prezygotic or postzygotic. Temporal isolation is prezygotic reproductive isolation since it occurs before fertilization and zygote production. Temporal isolation is result of temporal differences in breeding. In this example, the breeding season of Rana aurora lasts from January to March while the breeding season of Rana boylii lasts from April to July. So, these two breeding seasons do not coincide and these species could not mate.</span></span>
