Biología
Biología celular, genética, ecología y fundamentos de ciencias de la vida.
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multiple choice question in a population of 412 cats, 68% have black fu…
0.57
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matching question in the danish mud hopper, the green color allele is d…
\( p^{2}=0.16 \), \( 2pq = 0.48 \), \( q^{2}=0.36 \)
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multiple choice question in a population of 100 pea plants, 75% have pu…
\(0.50\)
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select all that apply which of the following conditions must be met for…
- No mutation - Large population size - No gene flow - No natural selection - Random mating
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multiple select question select all that apply a researcher has determi…
The population is in a Hardy - Weinberg equilibrium.
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multiple choice question given the phenotypic frequencies for black fur…
Start by calculating \(q\): take the square root of \(0.37\).
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matching question in pea plants, the purple flower allele is dominant o…
\(p^{2}=0.46\), \(2pq = 0.44\), \(q^{2}=0.10\)
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multiple select question select all that apply which of the following a…
B. Decrease in the number of and/or affinity of antibiotic binding sites D. Inactivation of the antibiotic (via enzyme) E. Removal of antibiotic molecules via drug pumps F. Decrea…
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in this chemical formula, which part represents energy or a chemical re…
The arrow.
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select all that apply which of the following explain the natural select…
B. A small number of individuals in a population have mutations in existing genes that provide resistance against a given antibiotic. D. The presence of the antibiotic selects for…
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multiple select question select all that apply what are the five agents…
- Mutation - Natural selection - Genetic drift - Gene flow - Nonrandom mating
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select all that apply which of these are true about antibiotic resistan…
- The antibiotic selects for pre - existing mutations. - The antibiotic does not cause resistance. - The presence of antibiotics turns on genes in some bacteria that initiates res…
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select all that apply the theory of evolution of natural selection requ…
- Genetic variation must lead to differences in reproductive success. - Genetic variation must be transmissible to the next generation. - Genetic variation must exist in the popul…
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before i sit down. but before doing that, i want to put a few political…
C. American women are humans suffering from injustice and are therefore justified in using revolutionary methods to gain rights.
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select all that apply which of these is true about the development of a…
- The presence of antibiotic selects for resistant bacteria. - A resistance gene provides a reproductive advantage to resistant bacteria in the presence of antibiotics. - Resistan…
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jumping rats 1. the interesting kangaroo rat has big hind feet. the hin…
1. A. what a kangaroo rat looks like 2. D. dark 3. B. explain facts about the kangaroo rat
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due dec 18 by 11:59pm points 10 submitting an external tool available a…
\(8(x + 2)\)
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use the text to compare and contrast a cheetah and a leopard. at first …
A cheetah: Is golden - brown with black spots (checked), Has separated spots (checked) A leopard: Is golden - brown with black spots (checked), Has a heavily muscled body (checked…
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use the text to compare and contrast artemis fowl and percy jackson and…
- A series of adventure novels: Artemis Fowl (checked), Percy Jackson and the Olympians (checked) - Involves fictional creatures: Artemis Fowl (checked), Percy Jackson and the Oly…
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due dec 18 by 11:59pm points 10 submitting an external tool available a…
\(30 + 5x\)
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water flows naturally into the roots of plants by this process. osmosis…
osmosis
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use the text to compare and contrast artemis fowl and percy jackson and…
- Artemis Fowl: A series of adventure novels (✓), Involves fictional creatures (✓), The main character's parents are human (✓) - Percy Jackson and the Olympians: A series of adven…
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both adhesion and cohesion are possible because of waters ability to to…
- First question: hydrogen bonds - Second question: tissue
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question 21 (1 point) ✓ saved if a light shines on a plat stem from one…
B. moves from the tip to the shaded side of the stem
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jumping rats 1 the interesting kangaroo rat has big hind feet. the hind…
- Similarity: Both have physical adaptations (big hind - related structures) that aid in jumping. - Difference: Kangaroo rat has cheek pouches for carrying food, while kangaroo ha…
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question 20 (1 point)match the following terms with their correct descr…
adhesion - 3. the tendency of water molecules to stick to other surfaces transpiration - 5. evaporation of water from leaves cohesion - 1. the tendency of water molecules to stick…
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read the line from \sonnet 18\ by william shakespeare. but thy eternal …
Your youthful beauty will not disappear.
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analyze the rhyme scheme in these lines from \sonnet 18.\ but thy etern…
ababab
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question 18 (1 point) which plant response can be demonstrated by placi…
phototropism
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in what way did the soviet union try to spread communism around the wor…
C. by supporting revolutionary movements
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use the text to put the events in order. a food chain is how energy get…
1. Plants get energy from the sun. 2. Animals eat plants. 3. Animals eat other animals. 4. Remains are decayed.
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math journal write a sum, difference, product, and quotient each with a…
Sum: \(2.3 + 3.7\), Difference: \(8\frac{1}{2}-2\frac{1}{2}\), Product: \((-1.5)\times(-4)\), Quotient: \(12\div2\)
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question 20 this term designated small, white southern farmers and set …
D. Yeoman
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describe how the placenta keeps the young alive before birth.
The placenta allows oxygen and nutrients to pass from the mother's blood to the fetus's blood. It also removes waste products from the fetus's blood.
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question 17 5 points free blacks in the south a lived mostly in urban c…
D. lived mostly in the Upper South.
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which of the following forms of membrane transport allow solutes to mov…
A. Option A, B. Option B, C. Option C
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question 4 (mandatory) (2 points) bird feathers are modified scales. tr…
- Question 4: True - Question 5: False
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question 15 (1 point) which methods of transporting materials across a …
B. facilitated diffusion, F. osmosis, G. simple diffusion
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7 without calculating the exact value, is $(-\\frac{5}{8})^{2}+1$ posit…
B. \(-$79\)
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in the above diagram, water moves in to or out of the cells by this pro…
Osmosis
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question: 15 what is one of the potential consequences of a cyberattack…
Loss of revenue
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number the steps in the correct order (1 through 5). transcribe the dna…
1. Identify the antisense strand of the DNA within the cell nucleus. 2. Transcribe the DNA to create the mRNA. 3. Locate the start, stop, and other codons on the mRNA. 4. Match th…
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amniotes produce eggs that contain fluids that bathe the embryo during …
1. True 2. True 3. False
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reading tool make connections as you read the text, fill in the chart b…
- Specialized Cells: - Definition: Cells with specific structures/functions for tasks. - Example: Red blood cells/nerve cells. - Tissues: - Definition: Groups of similar cells for…
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check all ways below to ensure that the bases in rna are properly paire…
B. The mRNA strand is complementary to the DNA template strand. C. During transcription, G in DNA pairs with C in mRNA, and A in DNA pairs with U in mRNA.
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why did the second party system emerge? once elected, andrew jackson an…
D. The "corrupt bargain" prompted Jackson's followers to establish the Democratic Party, and Clay and Adams to maintain their coalition through the Whigs.
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you transcribed dna to make and built a sequence of amino acids through…
mRNA
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question: 3 what is the primary goal of the gdpr and the ccpa? to regul…
To protect privacy rights of consumers
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which of the following statements about heredity is accurate? a. it is …
B. It is the passing of characteristics from parents to children.
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heredity is best described as __________. a. the single - most importan…
D. none of the above
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flower position, stem length, and seed shape are three characters that …
1. \(\frac{1}{64}\) 2. \(\frac{1}{64}\) 3. \(\frac{1}{8}\) 4. \(\frac{1}{32}\)
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review vocabulary choose the letter of the best answer. 1. proteins tha…
1. C. rough endoplasmic reticulum 2. C. osmosis 3. b. prokaryote 4. c. ribosome 5. a. receptor 6. All living things are made of cells; cells are the basic unit of life; new cells …
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which structures are found in each cell type? complete the table. proka…
| | Prokaryotic cells | Eukaryotic cells | |--|--|--| | DNA | Present | Present | | Ribosomes | Present | Present | | Mitochondria | Absent | Present | | Nucleus | Absent | Presen…
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which structures are found in each cell type? complete the table
- Membrane - bound organelles: Prokaryotic cells (no), Eukaryotic cells (yes) - Smooth endoplasmic reticulum: Prokaryotic cells (no), Eukaryotic cells (yes) - Linear chromosomes: …
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match each molecule to its function in the cell membrane. lipids carboh…
- allow the cell to be recognized by other cells: carbohydrates - give the membrane its flexibility: lipids - pump large molecules across the membrane: proteins
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this diagram shows a fluid mosaic model of the cell membrane. what type…
proteins, lipids, carbohydrates
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complete the paragraph to describe the phospholipid bilayer. the enviro…
The water repels the fatty acid tails and attracts the phosphate - containing heads of the phospholipids. So the tails of the phospholipids face inward, and the heads face outward…
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select the true statements. the cell membrane is made of two layers of …
- The cell membrane is made of two layers of phospholipids. - Phospholipid heads touch the intracellular environment. - Phospholipid heads touch the extracellular environment.
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question 7 members of phylum nematoda are _. a acoelomates b pseudocoel…
B. pseudocoelomates
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shown in this image are hela cancer cells that are just completing cyto…
Cancer cells have misregulated cell division. Genetic changes: Mutations in proto - oncogenes (e.g., RAS) to oncogenes (stimulate cell division), mutations in tumor suppressor gen…
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question 8 the success of arthropods is attributed to which of the foll…
D. jointed appendages, a segmented body, and an exoskeleton
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the cell membrane, also known as the plasma membrane, separates the ins…
The cell membrane only allows certain substances to enter or leave the cell.
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question 9 centipedes are a part of which of the following subgroups of…
D. myriapods
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a. shaw uses descriptive settings at the beginning of each act to show …
C. Shaw uses stage directions to specifically tell what the characters are doing at certain points.
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question 10 in which of the following subgroups would you find horsesho…
C. chelicerates
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select the true statements. only animal cells have a cell membrane. the…
The cell membrane controls what enters and exits a cell. The cell membrane maintains a separate environment inside a cell.
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abnormal chromosomes are frequently found in cancerous malignant tumors…
expression of inappropriate gene products
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cinnabar eyes is a sex - linked recessive characteristic in fruit flies…
100%
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three genes (a, b, and c) at three loci are being mapped in a particula…
Gene A is assorting independently of genes B and C, which are linked.
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what are the two types of cells found in nervous tissue? nissl bodies a…
Neuroglial cells and neurons
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when thomas hunt morgan crossed his red - eyed f1 generation flies to e…
The gene involved is on the X chromosome.
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males are more often affected by sex - linked traits than females becau…
males are hemizygous for the X chromosome.
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which of the following statements best describes the sry gene? it is a …
It is a gene region present on the Y chromosome that triggers male development.
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read the passage from animal farm. they had just finished singing it fo…
Minimus represents the producers of state - approved songs and slogans in Stalin's era.
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which of the following phases of cell division confirms mendels observa…
anaphase I of meiosis
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read the passage from chapter 1 of animal farm. ow, comrades, what is t…
the labor class of the Soviet Union
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the figure above represents a pedigree for a family in which dark - sha…
Hereditary (or familial) cases of this cancer typically occur at earlier ages than do nonfamilial forms.
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given the following cross between parents of the genotypes aabbcc × aab…
\(\frac{3}{4}\)
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answer the femur length for someone with an the femur length for someon…
The change in expected height for every one additional centimeter of femur length.
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question 10 (1 point) match the following terms to the correct letter i…
Facilitated Diffusion with a Carrier Protein: 1. A Facilitated Diffusion with a Channel Protein: 4. D Simple Diffusion: 2. B Active Transport: 3. C
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the figure above shows a pedigree chart for a family, some of whose mem…
ww
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which of the following statements correctly describes one difference be…
The law of independent assortment explains the segregation of two or more genes relative to one another.
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read the excerpt from chapter 10 of animal farm. there was, as squealer…
The pigs create reports and then burn them.
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wanen just found this old journal in a drawer and has decided to start …
\(y=x + 8\)
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question 4 (1 point) a particular compound microscope has an ocular len…
75
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question 31 2 pts what was mendels explanation for his observation that…
Traits can be dominant or recessive, and the recessive traits were "hidden" by the dominant ones in the F1.
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which of the following statements describes the major reason that an in…
different possible assortment of chromosomes into gametes
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answer the expected height for someone with a femur length of 55 centim…
The expected height for someone with a femur length of 55 centimeters.
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answer the expected height for someone with a femur length of 65 centim…
The change in expected height for every one additional centimeter of femur length.
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skin color in humans has a wide variety of phenotypes. the expression o…
polygenic inheritance
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which of the following describes the ability of a single gene to have m…
pleiotropy
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if the green rectangle had the area of 1x and the blue square had an ar…
\(x^{2}+2x\)
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what was the most significant conclusion that gregor mendel drew from h…
Traits are inherited in discrete units and are not the results of the "blending" of traits.
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why did the f1 offspring of mendels classic pea cross always look like …
One allele was dominant.
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this arrangement prevents certain molecules from crossing the lipid bil…
water, a very small polar molecule; oxygen, a small nonpolar molecule
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if a horticulturist breeding plants known as gardenias succeeds in havi…
Clone the plant asexually to produce an identical one.
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complete the paragraph to describe the phospholipid bilayer. both the i…
attracts; repels; the intra - and extracellular environments; inward
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which of the following is true of an organism that has a chromosome num…
Each cell has eight homologous pairs of chromosomes.
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in the life cycle of fungi and some protists, which of the following pr…
mitosis in the haploid unicellular or multicellular organism
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if a sexually reproducing organism has a diploid number of 36, how many…
18 chromosomes