Answer the following question given this paragraph: Look at the rock layers pictured below ( Figure below ); they show a feature called Hutton's unconformity. The unconformity was discovered by James Hutton in the 1700s. Hutton saw that the lower rock layers are very old. The upper layers are much younger. There are no layers in between the ancient and recent layers. Hutton thought that the intermediate rock layers eroded away before the more recent rock layers were deposited. Q: As per hutton's unconformity, what happened to the intermediate layers of rock? Choices: - they metamorphized - they fused - they expanded - they eroded away A:
they eroded away
(Question)
Answer the following question given this paragraph: Q: What have cell-surface antigen receptors for foreign molecules? Choices: - capillaries - dendrites - erythrocytes - lymphocytes A:
(Answer)
lymphocytes
Ques: Answer the following question given this paragraph: Phylogenetic Trees Scientists use a tool called a phylogenetic tree to show the evolutionary pathways and connections among organisms. A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms. Scientists consider phylogenetic trees to be a hypothesis of the evolutionary past since one cannot go back to confirm the proposed relationships. In other words, a "tree of life" can be constructed to illustrate when different organisms evolved and to show the relationships among different organisms (Figure 20.2). Unlike a taxonomic classification diagram, a phylogenetic tree can be read like a map of evolutionary history. Many phylogenetic trees have a single lineage at the base representing a common ancestor. Scientists call such trees rooted, which means there is a single ancestral lineage (typically drawn from the bottom or left) to which all organisms represented in the diagram relate. Notice in the rooted phylogenetic tree that the three domains Bacteria, Archaea, and Eukaryadiverge from a single point and branch off. The small branch that plants and animals (including humans) occupy in this diagram shows how recent and miniscule these groups are compared with other organisms. Unrooted trees don't show a common ancestor but do show relationships among species. Q: What tool do scientist's use to show the evolutionary pathways and connections among organisms? Choices: - conceptual tree - superficial tree - photogenetic tree - phylogenetic tree A:
Ans: phylogenetic tree
(Q).
Answer the following question given this paragraph: Scientists don't know for certain why magnetic reversals occur, but there is hard evidence that they have for hundreds of millions of years. The evidence comes from rocks on the ocean floor. Look at Figure below . They show the same ridge on the ocean floor during different periods of time. Q: Where does evidence that magnetic reversals occur come from? Choices: - snow - Volcanoes - air - rocks on ocean floor A:
(A).
rocks on ocean floor
Ques:Answer the following question given this paragraph: Q: The sun, stars, moon, planets and comets are all type of what objects? Choices: - extraterrestrial - universal - spacial - celestrial A:

Ans:celestrial
Ques: Answer the following question given this paragraph: New mitochondria and chloroplasts are produced through a process similar to binary fission. Bacteria also reproduce through binary fission. Q: How do bacteria reproduce? Choices: - budding - nuclear fission - sexual reproduction - binary fission A:
Ans:
binary fission