生物
细胞生物学、遗传学、生态学与生命科学基础。
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reminder: to show your personal understanding, all assignment responses…
- What is happening in this image? A chained member of the Third Estate is rising up against the clergy and nobility, breaking free from oppression. - How does the image relate to…
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question 36 1 pts which of the following is responsible for the nearly …
adaptive evolution
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question 33 which of the following is an example of reproductive isolat…
The population of frogs mates in the deep water of a pond and another population of frogs mates on the shore of the same pond.
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question 38 1 pts the great diversity of life on earth is caused by the…
Speciation
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question 39 1 pts which of the following does not provide an example of…
Two bird populations live on adjacent mountains with a narrow valley between them.
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mark where the rock would land if the kid from ecuador were to drop the…
Directly below the kid in Ecuador, towards the center - assuming no air - resistance or other external factors.
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question 40 1 pts vertebrates are a group of related animals with a bac…
D. homologous structures
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in biology, which group is larger? a family a subfamily
a family
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question 2 (1 point) according to the nebular hypothesis, the sun, the …
The atmosphere was composed mostly of oxygen
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question 10 jonahs restaurant has high employee turnover. this may be p…
greater expense due to hiring and training new employees
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question 41 1 pts tails are found only in adults and begin forming late…
In embryos of a wide variety of organisms, some of which have a tail as adults and others do not.
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question 41 1 pts tails are found only in adults and begin forming late…
In embryos of a wide variety of organisms, some of which have a tail as adults and others do not.
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question 43 1 pts the fact that small, nonfunctioning hind legs are fou…
evolved from organisms with legs
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question 44 1 pts an organism that is widely distributed likely uses ve…
evolved before the separation of Pangaea.
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students are comparing two organisms in the table below. organism 1: ha…
C. Only eukaryotic cells have a membrane - bound nucleus.
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question 29 1 pts which of the following must take place for speciation…
reproductive isolation
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question 28 1 pts say you live with your significant other, but you wor…
B. temporal isolation
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look at the images. what do they show? left: rotation | right: rotation…
C. Left: rotation | Right: revolution
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question 27 1 pts some hybrid organisms survive but do not produce fert…
B. Hybrid Infertility
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question 26 1 pts a small population of deer are introduced to an islan…
B. Directional selection
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lisa simpson is working on a science project. her task is to answer the…
Hypothesis: Rogooti increases the speed of hair growth compared to not using any hair product. Materials: Rogooti hair product, placebo (e.g., plain water or unscented lotion), me…
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the introduction of a small population onto an island that results in a…
The founder effect
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question 24 1 pts a scientist is studying beak length in a species of h…
directional
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question 23 1 pts a species of wildflower grows on hillsides in two loc…
The population in location B would have reduced genetic diversity and changed allele frequencies.
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question 22 1 pts a tourist brings home a small fish and releases it in…
B. gene flow
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question 21 1 pts a species of bird lives in an area where large and sm…
B. disruptive selection
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what are purines found in?
DNA, RNA, ATP, GTP, and certain foods (meat, organ meats, seafood)
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este mes inicia el mes de la herencia. para aprender más sobre gente hi…
Persona 1: - ¿Cómo se llama tu persona? Pablo Picasso - ¿Cuándo nació y murió (if applicable)? Nació el 25 de octubre de 1881 y murió el 8 de abril de 1973. - ¿De cuál país es? Es…
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question 16 1 pts whale dna is more similar to hippo dna than to the dn…
C. hippos are whales' closest living relatives.
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question 15 the result of ____ over evolutionary time spans is that all…
C. Natural selection
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what are purines found in? enter your answer here
Nucleic acids (DNA and RNA), high - energy molecules like ATP, and some co - enzymes.
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question 14 1 pts breeding programs for farm - raised chickens result i…
Yes. The change in chicken coloration is a genetic change in the population over time.
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question 13 1 pts equus (horses) have a single toe on their hoof, while…
D. a transition fossil that has three toes
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which element is not found in biomolecules? oxygen uranium hydrogen nit…
B. uranium
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multiple - choice question which element is not found in biomolecules? …
B. uranium
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question 12 1 pts a biologist develops a strain of corn with lower fat …
Artificial selection
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question 11 1 pts some snakes have small remnants of legs that they now…
D. vestigial characteristics
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how long do the potato cylinders need to incubate in the various soluti…
d) 1.5 to 2 hours
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cylinders of potato will be obtained for an osmosis study. how will we …
A. a cork borer
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the purpose of observing carmine powder in water under a microscope is …
C. observe Brownian movement
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question 10 1 pts which of the following would not be a situation where…
A. Which movie should I watch this weekend?
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which step uses crystal violet? describe the cells counterstain the cel…
stain the cells
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in addition to observing red blood cells under the microscope, we will …
D. place the tubes in a spectrophotometer to measure absorbance
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the purpose of observing carmine powder in water under a microscope is …
C. observe Brownian movement
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question 18 a musical form that alternates between two distinct section…
D. AB or Verse/Chorus
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multiple - choice question which of the following is the building block…
B. nucleotides
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dodgeball victory last year, the end of our dodgeball tournament was on…
Sentence to add details: I hit the ground, but somehow managed to catch the ball between my legs. Three more sentences: As I hit the ground, I felt the cold, hard gym floor agains…
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gram staining. the light and dye, safranin, then gets added. gram - pos…
C. pink
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multiple - choice question nucleic acids include _______ and _______. a…
C. DNA and RNA
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a group of researchers conducted an experiment and collected the data p…
The hypothesis was supported because all members of the control group survived while most of the members of both treatment groups died by the end of the study.
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what best describes the image for sample 1? gram - negative, so antibio…
There is not enough information in the provided text to determine if the sample is gram - positive or gram - negative. But we know that both gram - positive and gram - negative ba…
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question 5 1 pts the genetic material used for reproduction by those or…
DNA
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question 4 1 pts a scientist named dr. burkholder hypothesized that the…
A predicted increase in Pfiesteria populations coincided with a fish die - off.
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question 3 1 pts in 1890, robert koch developed a hypothesis regarding …
D. germ theory of disease
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5. which of the following explains how the rights protected in the firs…
These rights have been essential tools for marginalized groups to challenge societal injustices, with movements such as the Civil Rights Movement using them to advocate for change.
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gram staining the light red dye, safranin, then gets added. gram - posi…
dyes cells purple
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question 2 1 pts what characteristic is not shared by all living organi…
They make their own energy.
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cylinders of potato will be incubated in sucrose solutions of various m…
d) Weighing of the potato cylinders
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to calculate the percentage change in weight of the potato cylinders, y…
D. divide the weight change by the initial weight
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what term is used to describe the swelling and bursting of cell membran…
D. lysis
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the light red dye safranin, then gets added. gram positive bacteria wil…
purple
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to observe diffusion across a semipermeable membrane, we will use dialy…
d) all of the above
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which type of bacteria develop resistance more easily because of their …
Gram - negative bacteria
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to observe diffusion across a semipermeable membrane, we will use dialy…
a) Water and potassium iodide
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experiments, occasionally a major discovery happens in a more fortuitou…
pressing need
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which type of bacteria stain pink during gram - staining? gram - positi…
Gram - negative bacteria
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which best describes lenins new economic policy, established in 1921? i…
It temporarily allowed some private ownership of land in the Soviet Union.
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soldiers died needlessly from bacterial infections, fleming recognized …
None of the provided options are correct. The meaning of "exigency" here is an urgent need.
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select the text from the paragraph that best helps you understand that …
"this reduces joint inflammation, relieving pain and preventing further damage"
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under lenin, some of the leaders of the communist government privately …
privately disagreed with the direction of the revolution.
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modern research, however, indicates that gold does have some well - fou…
to ease or lessen
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4th grade pltw quiz organisms: structure and function write the letter …
characteristic: b evidence: d living thing: c organism: c
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joint and lung disease, apparently considering gold a sort of panacea. …
cure-all
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chapter 13: adaptation and sp... > facing a warmer future la reserva h …
The two Santa Cruz tortoise populations are likely the same species.
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chapter 1 review questions multiple choice 1. all of the following are …
1. d. scuba 2. d. variables 3. b. It is a testable statement. 4. a. induction 5. b. Hypotheses might be supported or not supported by data when tested. 6. c. Models are approximat…
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4th grade pltw quiz organisms: structure and function write the letter …
- characteristic: b - evidence: d - living thing: c - organism: c - 1. respond to stimuli - 2. breathe - 3. reproduce - 4. grow - 5. excrete - 6. consume
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pretest: unit 1 question 7 of 20 why might a character experience inter…
B. The character might have to make a difficult choice.
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match the reproductive isolation mechanisms that can result in allopatr…
A large mountain range between two populations: Allopatric speciation A different ritual dance before mating: Sympatric speciation A population awake at night and the other awake …
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multiple - choice question which of the following is not a function of …
source of energy
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question which of the following reproductive isolating mechanisms preve…
C. mechanical isolation
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pretest: unit 1 question 5 of 20 which option is an example of dramatic…
D. A woman is kidnapped by a monster. The audience knows he is a prince; she does not.
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macromolecules and enzymes study guide 1. what’s the difference between…
1. A monomer is a single molecule, while a polymer is a large molecule made of repeating monomers. 2. Carbon, hydrogen, oxygen. 3. Carbohydrates. 4. Monosaccharides. 5. Sucrose. 6…
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question speciation due to the geographic separation of two populations…
B. allopatric; ecological
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question which of the following is an example of coevolution? select an…
D. The long beak of hummingbirds is well adapted for feeding on plants with long, tubular flowers.
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question when two populations are reproductively isolated, what else mu…
B. genetic divergence
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fill out the table for each of the following as they relate to the foss…
| Vocabulary | Definition | |--|--| | Gradualism | The theory that species evolve slowly and steadily over time. | | Punctuated Equilibrium | The theory that evolution occurs in s…
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lecture exam 1 (ch 17 - 21) - requires respondus lockdown browser + web…
False
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multiple - choice question the monomer of proteins is - nucleotides ami…
B. amino acids
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with a patient that is administered an injection of erythropoietin (epo…
increased hematocrit
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question according to the accepted scientific definition, a ____ is a g…
A. species; reproductively isolated
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question which of the following terms describes traits that are inherit…
A. adaptive traits
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a lender estimates the closing costs on a home loan will be 3.75% of th…
d. The lender made a poor estimate; it was off by more than 0.5% of the actual closing costs.
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hispanic heritage internet scavenger hunt 1. when was hispanic heritage…
1. 1968 2. 1988 3. September 15 - October 15 4. 21 5. Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua 6. Mexico 7. Latino 8. Garcia, Rodriguez 9. California, Texas, Florid…
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staar practice during early stages of development, dolphin embryos begi…
- Two answers to eliminate: B. The genes that control the development of hind limbs are destroyed as the fetus develops; D. Dolphins are evolving to become terrestrial animals. - …
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27. which phase of mitosis follows anaphase? a. telophase b. metaphase …
a. Telophase
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26. what is the outcome when a cell detects errors during mitosis and t…
a. The cell undergoes programmed cell death to prevent potential harm.
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25. what role do aquaporins play in the cell membrane? a. they allow wa…
a. They allow water molecules to pass through the membrane.
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1. define: chromosome: _
A chromosome is a thread - like structure in the cell nucleus composed of DNA and proteins, carrying genetic information in genes.
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what are three main functions of lipids? (choose 3 answers) insulation …
insulation, long - term energy storage, form cell membranes
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24. what function do vacuoles serve in plant cells? a. storing water, n…
a. Storing water, nutrients, and waste