10). A scientific study provides evidence that humans and apes had a common ancestor, an idea that most anthropologists accept a
s true. Which of the following most likely led to the general acceptance of this idea? A). A detailed explanation of the rationale for a common ancestor
B). Endorsement of the evidence as fact by government agencies
C). Publication of this idea in many popular magazines
D). A multitude of scientific studies all leading to the same conclusion
16). Which of the following would be the best way to determine whether a cell belonged with Archaea or Bacteria?
A). Check to see if it can form a capsid around itself since only Bacteria can do that.
B). Test to see if it can survive in harsh environments since only Archaea survive these.
C). Test for the presence of a special form of RNA polymerase because only Bacteria has this.
D). Check to see if it has a nucleus because only Archaea have nuclei.
17). Which of the following best describes an example of a nonspecific external response to harmful bacteria?
A). Phagocytes engulf and destroy invading bacteria.
B). Histamine causes areas invaded by bacteria to swell.
C). Antibodies recognize bacteria and attack them.
D). Enzymes in saliva break down bacterial cell walls.
19). How are Protista different from Bacteria?
A). Protista have nuclei and Bacteria do not.
B). Protista reproduce asexually and Bacteria do not.
C). Protista are heterotrophic and Bacteria are not.
D). Protista have cilia and Bacteria do not.
20). Which of the following best describes the relationship between the stolon and gametangia in Fungi?
A). The stolon and the gametangia exchange water and nutrients through a network of hyphae.
B). When the gametangia of two Fungi fuse, a diploid stolon is formed and grows into a large stalk.
C). When the stolons of two Fungi connect, gametangia form where they meet.
D). The gametangia form spores, which are then sent to the stolon to be either stored or released.
<em>If you do not know the reasoning behind this, you may want to read the explanation assignment the teacher adds, or do more research, look at notes, or pay attention during class :)</em>
Three major types of RNA are mRNA, or messenger RNA, that serve as temporary copies of the information found in DNA; rRNA, or ribosomal RNA, that serve as structural components of protein-making structures known as ribosomes; and finally, tRNA, or transfer RNA, that ferry amino acids to the ribosome to be assembled .
RNA carries genetic information from the nucleus to ribosomes for the synthesis of proteins; while tRNA carries specific amino acids to the ribosomes to assist the protein biosynthesis, and on the other hand, rRNA provides the structural framework for the formation of ribosomes.
