生物
细胞生物学、遗传学、生态学与生命科学基础。
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fill in the blank question the claim that living organisms can develop …
spontaneous
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to decrease as shown in the graph? lipid protein carboydrate nucleic ac…
protein
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multiple choice question ferdinand cohn is best known for his discovery…
O endospores
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multiple choice question which scientist built microscopes that could m…
Leeuwenhoek
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order the topics from broadest to narrowest. broader protecting mountai…
1. protecting animal species at risk 2. protecting mammals at risk 3. protecting mountain gorillas
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why are plant roots important to prevent erosion? a. plant roots build …
B. Plant roots anchor the soil in place.
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thinking it through 5.2 1. what was hannahs vow? why did she make this …
1. Hannah's vow was to dedicate her son to God's service at the tabernacle if God gave her a child. She made it because she was barren and deeply desired a child, and she believed…
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17) order the following to the correct cell part. (click and drag to pu…
1. Fimbrae 2. Cell wall 3. Plasma membrane 4. Flagellum 5. Cytoplasm 6. Nucleoid
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15) which of the following structures of a eukaryotic cell is not likel…
15. Outer membrane 16. Pinocytosis
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13) which type of cytoskeletal fiber is important in the formation of t…
13) Intermediate filaments 14) Golgi apparatus
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10) which of the following terms refers to a bacterial cell having a si…
10) Lophotrichous 11) Peptidoglycan 12) Peroxisome
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which of these is the best reason for tina to monitor her bank account …
D. to know how much money she has for budgeting
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multiple choice question which scientist demonstrated that dust did ind…
Tyndall
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5. why did the fighting continue after the signing of the treaty of ghe…
International communication was very slow
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multiple choice question a \pure\ culture is also known as a(n) ______ …
O axenic
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fill in the blank question the proposed taxonomic classification of is …
Kingdom
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7) which of the following terms refers to a prokaryotic cell that is co…
7) □ Coccus □ Coccobacilli ✅ Vibrio □ Spirillum 8) □ Endospores □ Cell walls ✅ Fimbriae ✅ Capsules □ Flagella 9) ✅ Lipopolysaccharide □ Teichoic acid □ Mycolic acid □ Peptidoglycan
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multiple choice question pasteur showed that even cultures open to the …
B. swan-neck flasks
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multiple choice question \biovars\, \serovars\, and \morphovars\ are ty…
strains
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multiple choice 1) which of the following individuals argued in favor o…
C. John Needham
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multiple choice question the theory of spontaneous generation claims th…
living organisms can develop from nonliving matter
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the descendants of a single, pure microbial culture are defined as a __…
O strain
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multiple choice 1) which of the following individuals argued in favor o…
C. John Needham
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multiple choice question antony van leeuwenhoek is best known for his e…
microscopes
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multiple choice question plant and animal species are defined by ______…
B. reproductive properties
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when two organisms evolve in response to another is coevolution
Coevolution
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multiple choice question when using a binomial system to name a specifi…
B. species
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which of these is an example of natural selection? organism that are be…
Organism that are best suited to an environment tend to survive and reproduce more often.
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4) which of the following individuals did not contribute to the establi…
4) ▢ Girolamo Fracastoro 5) ▢ Lynn Margulis 6) ▢ Robert Koch
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multiple choice question the taxonomic level of superphylum was propose…
A. the number of phyla in each domain exceeded a reasonable number for data management
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snails with a forward spiral and snails with a backward spiral have an …
disruptive selection
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multiple choice question the first part of a latin binomial is the name…
C. genus
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select all that apply which three of the following indicate a type of \…
- Biovar - Morphovar - Serovar
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multiple choice 1) which of the following individuals argued in favor o…
1) Aristotle 2) Louis Pasteur 3) Francesco Redi
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click and drag on elements in order list the following taxonomic levels…
1. Phylum 2. Class 3. Order 4. Family 5. Genus 6. Species
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multiple choice question a bacterial or archaeal strain is best defined…
D. the descendants of a single, pure microbial culture
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which of the following is not included in the science of taxonomy? enum…
A. Enumeration
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multiple choice question for animals and plants, a group of interbreedi…
O species
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multiple choice question which tree specifies a common ancestor? ○ (b) …
(b)
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multiple choice question when using a binomial system to name a specifi…
genus
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multiple choice question bootstrapping and bayesian inference are metho…
O evaluate the validity of a phylogenetic tree
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multiple choice question which phylogenetic tree - building method is m…
Character-based
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true or false question taxonomic ranks or levels such as \family\ and \…
True
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multiple choice question the science of classifying living things is kn…
B. taxonomy
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multiple choice question the hydrogen hypothesis suggests that during e…
the host cell became dependent on endosymbiont-produced hydrogen for energy
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multiple choice question a(n) ______ tree is more difficult to develop …
rooted/unrooted
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multiple choice question which method of phylogenetic tree construction…
Evolutionary distance
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select all that apply which two of the following methods are used to ev…
Bootstrapping, Bayesian inference
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fill in the blank question the two broad categories of approaches for b…
1. Distance 2. Character
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multiple select question select all that apply which two of the followi…
C. It is more complicated than distance-based methods. D. It begins with certain assumptions about evolutionary pathways.
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signature sequences in 18s rrna molecules are ______. common to all cel…
found only in eukaryotes
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multiple choice question on a phylogenetic tree, the distance from the …
the relatedness of two organisms
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multiple choice question short, conserved rrna gene sequences that defi…
oligonucleotide signature sequences
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fill in the blank question the endosymbiotic theory for mitochondria ha…
Oxygen
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multiple choice question building phylogenetic trees using the distance…
calculating the percent differences in pairwise comparisons of aligned sequences
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select all that apply small subunit rrna gene sequencing has become a m…
- B. assigning microbes to taxonomic groups - D. inferring the phylogeny of microorganisms
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multiple select question select all that apply name the two broad types…
B. Distance-based, D. Character-based
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multiple choice question which is true for the possible types of compar…
The variable regions allow comparisons between closely related microbes while the stable sequences allow comparisons between more distantly related microbes.
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signature sequences for the genus pseudomonas may be found in ______. o…
only Pseudomonas species
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multiple choice question oligonucleotide signature sequences are ______…
small, conserved nucleotide sequences that are specific only to particular phylogenetic groups of organisms
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fill in the blank question the term phylogeny refers to the development…
evolutionary
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multiple choice question the hydrogen hypothesis suggests that during e…
the host cell became dependent on endosymbiont-produced hydrogen for energy
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multiple choice question the hydrogen hypothesis suggests that during e…
the host cell became dependent on endosymbiont-produced hydrogen for energy
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fill in the blank question the sequencing of small subunit ribosomal ge…
RNA
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multiple choice question the origin of chloroplasts is included in whic…
B. Endosymbiotic hypothesis
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fill in the blank question the stable sequences found in small subunit …
distantly
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multiple choice question the origin of mitochondria is included in whic…
Endosymbiotic hypothesis
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political & cultural changes quick check which statement best analyzes …
D. The Red Scare was a continuation of the Cold War policy of surveilling communists.
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fill in the blank question assuming each letter represents a different …
phylogenetic
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multiple choice question the term that describes one organism living in…
D. endosymbiosis
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multiple choice question which term refers to the evolutionary developm…
D. Phylogeny
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multiple choice question the endosymbiotic hypothesis suggests an origi…
mitochondria, chloroplasts, and hydrogenosomes
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fill in the blank question the endosymbiotic theory for mitochondria ha…
Oxygen (O₂)
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fill in the blank question the acronym describing the last universal co…
LUCA
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multiple choice question it is hypothesized that chloroplasts were once…
free-living bacterial cells
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multiple choice question rna plays a critical role in the development o…
all three types of RNA contribute to protein synthesis
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multiple choice question it is hypothesized that mitochondria were once…
free-living bacterial cells
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multiple choice question what is the primary role of dna in a cell? pro…
Store information
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multiple choice question an endosymbiosis between two organisms means t…
one organism lives inside the other
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fill in the blank question in bacteria and your cells, rna is synthesiz…
1. DNA 2. protein
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fill in the blank question the hypothesis that proposes an origin for m…
Endosymbiotic
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multiple choice question what is the name for catalytic proteins that s…
B. Enzymes
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multiple choice question luca is a term used to describe the ______. le…
last universal common ancestor
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multiple choice question which role is not played by proteins in extant…
C. Store information
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multiple choice question which type of molecule is directly used in pro…
C. RNA
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the table shows values of the expressions $10x^2$ and $2^x$. 1. describ…
### Part 1: Describe how the values of each expression change as \( x \) increases For \( 10x^2 \): As \( x \) increases, \( x^2 \) increases quadratically, so \( 10x^2 \) increas…
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multiple choice question the genetic information of the cell is stored …
C. DNA
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multiple choice question dna is the template for the synthesis of _____…
RNA
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multiple choice question which group of organisms is numerically domina…
D. Microbes
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fill in the blank question catalytic proteins that speed up chemical re…
enzymes
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multiple choice question viruses are which kind of infectious agent? - …
Acellular
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multiple choice question which cellular role is played primarily by pro…
D. Catalyze reactions
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the ______ is controlled by the experimenter, while the ______ represen…
O independent variable; dependent variable
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multiple choice question which group of organisms is not included in th…
E. Bacteria
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question 9 1 pts height and weight are positively correlated. this mean…
As height increases, typically weight increases.
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multiple choice question archaea have become well recognized for ______…
living in extreme environments
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select all that apply which three supporting (i.e., positive) roles do …
- Contribute to immune system development - Produce vitamins in the intestines - Help digest food in the intestines
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multiple choice question which group of organisms has the greatest numb…
C. Microbes
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multiple choice question an infectious agent consisting of nucleic acid…
C. satellite (Note: Assuming the options are labeled A - D with A: viroid, B: prion, C: satellite, D: bacteria)
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select all that apply select the four characteristics that are most com…
- Usually single - celled - Lack a nucleus - Lack membrane - bound organelles - Peptidoglycan cell wall