Examlex
Fossils in amber are important for studying evolutionary history. Why are the amber fossils from Hispaniola so important to our understanding of evolution in tropical rainforests?
Extinct
The state in which a species no longer exists anywhere on Earth, often due to environmental changes, predation, or human activities.
Jawless Fish
A group of fish without jaws, such as hagfish and lampreys, representing early forms of vertebrate life.
Conodonts
Extinct, simple fishlike chordates with large eyes and tooth-like hooks; may have been early vertebrates.
Toothlike Hooks
Structures resembling teeth or hooks, often used by plants or animals for attachment or predation.
Q72: In marine ecosystems phosphorus is added to
Q79: You are surveying biodiversity on a new
Q91: Individual behavior that includes sacrifices made for
Q94: Biological reserves are an important tool in
Q112: Which of the following results from a
Q114: Recall the classic experiments assessing arthropod extinction
Q126: Questions of causation and development are _
Q152: In the silkworm moth, Bombyx:<br>A)pheromones are released
Q172: Energy use by individuals varies among countries
Q193: Which of the following is responsible, in