Biologie
Biologie cellulaire, génétique, écologie et bases des sciences de la vie.
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in what way has technology used aboard the international space station …
Robotic arms used aboard the ISS are now used in delicate surgeries on Earth.
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which statement is true of mutations? they do not impact evolution they…
They are important for evolution, they provide genetic variation.
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what is the primary purpose of collecting taxes? a. to fund private sec…
d. To fund public services and infrastructure
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multiple - choice question crossing over... increases genetic variation…
increases genetic variation
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which characteristic is common to all inner planets? rings moons rocky …
rocky surfaces
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problem 5: a bowling ball with a mass of 2.85 kg is going at a speed of…
\(57\space kg\cdot m^{2}/s\)
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which of the following best describes why compliance with tax laws is i…
A. It ensures fair contribution to public services
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consider a spherical capacitor composed of two concentric shells separa…
There is a displacement current between the shells, but no charge - carrying current between them.
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a sports tournament has k teams. each team has 13 players. using k, wri…
\(13k\)
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about how long does it take earth to complete one revolution around the…
1 year
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scientists believe that some mass extinction events are possibly caused…
C. 5
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compare the tactics used by the french troops in the french and indian …
The French troops in the French and Indian War and the American patriots during the Revolution both used guerrilla - style tactics like hiding in terrain (woods for French, Americ…
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relaciona el anfibio con su descripción. * 3 puntos rana sapo salamandr…
- cuerpos largos y delgados con colas: salamandra - piel suave, extremidades largas: rana - piel rugosa, extremidades más cortas: sapo
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¿qué clase de vertebrados no tiene dientes? * reptiles pez pájaros
pájaros
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¿qué especies de vertebrados pueden poner huevos? marque todas las opci…
reptil, pez, mamífero, anfibio, pájaros
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¿qué grupo de reptiles contiene solo carnívoros? * serpientes tortugas …
serpientes
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¿qué grupo de reptiles no es nativo de pensilvania? (no se encuentra de…
cocodrilos
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complete the text. president lincoln declared a national thanksgiving i…
Civil War
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los renacuajos nacen de los huevos y respiran oxígeno a través de... * …
branquias
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debido a que las ranas, los sapos y las salamandras viven la primera pa…
anfibios
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además de los mamíferos, esta clase también es endoterma, o de sangre c…
pájaros
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label the reactants and products below c6h12o6 + o2 → co2 + h2o + energ…
- Reactants: \(C_6H_{12}O_6\), \(O_2\); Products: \(CO_2\), \(H_2O\), energy - Count before arrow: \(C = 6\), \(H = 12\), \(O = 18\) (assuming \(C_6H_{12}O_6+6O_2\)) - Count after…
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puedes utilizar el plegable de la clase vertebrado para esta sección. u…
Verdadero
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though hailed by many members of sri lankas ethnic sinhalese majority f…
excessively quick
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1/10/25, 3:20 pm question 17 print assessment cultural divergence can o…
D. Communities resist adopting global technologies and maintain local customs
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¿cuál de los siguientes contendría el mayor número de organismos? * 1 p…
filo
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¿qué organismo es el pariente cercano del venado de cola blanca? * uno …
uno del género Odocoileus
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utiliza la información anterior. ¿cuál es el nombre científico del vena…
Odocoileus virginianus
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uncanny means : deserving or inciting pity not to be placated or appeas…
suggesting the operation of supernatural influences
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¿en qué dominio se encuentran los humanos?* animal bacterias eucariotas
eucariotas
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¿qué reino contiene vertebrados? * animal planta protista
animal
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¿cuál es la especie más estrechamente relacionada con el oso polar? (ur…
Oso negro americano - Ursus americanus
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¿qué significa heterótrofo? * debe obtener alimento de otra fuente, com…
Debe obtener alimento de otra fuente, como los hongos.
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¿qué es la taxonomía?* una forma de proporcionar nombres comunes en var…
una rama de la ciencia que clasifica los organismos
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¿cuáles son los taxones ordenados de mayor a menor? * especie-género-fa…
Dominio-Reino-Filo-Clase-Orden-Familia-Género-Especie
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¿cuál es la diferencia entre unicelular y multicelular? * los animales …
C. Unicelular significa una sola célula
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indignation brought hundreds of thousands of people onto the streets in…
B. a feeling of righteous anger
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una clave dicotómica utiliza una serie de preguntas de sí/no para ident…
Verdadero
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1a. leaves are spiny...............................................pinu…
# Explicación paso a paso: ## Paso 1: Observar la hoja La hoja tiene múltiples folíolos (hojas pequeñas), por lo que se sigue la rama 2b y se va a 4. ## Paso 2: Observar los borde…
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la nomenclatura binomial consiste en tu nombre y apellido, por ejemplo …
FALSO
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el nombre científico se escribe en cursiva. * verdadero falso
Verdadero
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cada organismo puede tener múltiples nombres científicos. * verdadero f…
FALSO
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¿por qué no usamos simplemente nombres comunes? * ninguna de estas afir…
Todo esto es cierto.
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in a group of tomato plants, some individuals have smooth fruit and oth…
- "smooth fruit" should be changed to "fuzzy fruit".
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this passage describes the fleece type trait in sheep. the fleece, or o…
homozygous
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myotonia congenita is a condition that causes temporary muscle stiffnes…
- Tonel's phenotype for the myotonia congenita gene: Has myotonia congenita. - Tonel's genotype for the myotonia congenita gene: \(Mm\).
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american immigrants why were american citizens concerned about european…
they thought the immigrants would compete with them for jobs
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7 true or false 2 points true/false: heightened security measures in tr…
- **Question 7**: False - **Question 8**: Working outside established systems through civil disobedience - **Question 9**: False
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complete the sentence with the best subject. ______ play the banjo, but…
Both of us
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4 true or false 2 points true/false: differences in governance cannot l…
- 4. B. False - 5. A. True - 6. A. True
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3. which of these is a characteristic of viruses? they invade hosts and…
They invade hosts and reproduce within them.
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5. in which reproductive cycle does viral dna integrate with the host d…
lysogenic cycle
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4. why are some viruses useful for fighting antibiotic - resistant bact…
they won't infect human cells
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7 multiple choice 1 point what might cause a theory to change over time…
- **Question 7**: The discovery of new evidence. - **Question 8**: It's been tested many times. - **Question 9**: A plant needs at least five hours of sunlight per day to grow.
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3. which of these is a characteristic of viruses? they invade hosts and…
They invade hosts and reproduce within them.
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2. what is it called when a host cell ruptures and releases viruses aft…
A. lysing
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1. which biotechnology application uses viruses to specifically attack …
B. cancer treatments
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4 multiple choice 1 point what must you do before you make a hypothesis…
4. Make observations 5. The temperature at which each bean is kept 6. Unchanging
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theodore roosevelt - \the man in the arena\ speech given 1910 former u.…
To emphasize the importance of taking action despite criticism.
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question 25 a. h₂n - c - c - oh r b. c. d. which of the above structure…
B.
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question 24 a ______ is a non - cellular infectious agent that can only…
Blank 1: virus Blank 2: cell Blank 3: viruses Blank 4: virus Blank 5: protein
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question 23 the rough ers main purpose is membrane and protein producti…
C. homeostasis
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question 21 a frame - shift mutation has the potential to change the a …
- **Question 21**: d. sequence of nitrogen bases in a strand of messenger RNA, and the protein made - **Question 22**: b. Can the plant perform respiration without a large supply …
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electromagnetically, waves for electromagnetic radiation that carry ele…
infrared waves
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waves on the electromagnetic spectrum can have low energy or high energ…
microwaves
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electromagnetic waves are transverse waves that combine electricity and…
thermal imaging cameras
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a farmer is considering the advantages of cloning a herd of cattle from…
- Question 17: a. All cattle in the herd would have the most desired traits. - Question 18: c. Recombinant DNA. - Question 19: True.
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electromagnetic waves are transverse waves that contain electric and ma…
They have low frequency.
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food science is one area where biotechnology has made many advancements…
C. Biotechnology is responsible for advancements that reduce the cost and resources needed for many different food products and allows people to produce more in a shorter amount o…
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question 15 during dna replication prior to meiosis, a frameshift mutat…
d. Yes, because the error happened in a gamete.
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question 13 if the dna sequence is tac ttg acc, what would be the resul…
C. Met - Asn - Trp
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a timeline of important discoveries about dna is shown below. these dis…
C. Scientists gained more knowledge about DNA as new evidence became available.
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question 9 what is the function of helicase? o a it adds new nucleotide…
c. It separates DNA strands. # Question 10
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the nucleotide t always pairs with question 7 watson and crick (with fr…
- Question 1: B. A - Question 7: B. double helix - Question 8: C. Thymine
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question 3 if cytokinesis fails after mitosis, what is the likely resul…
C. A single cell with two nuclei # Question 4
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1. feudalism is most closely tied to: a) the government of great britai…
1. C. the social structure of Europe 2. D. Medieval Europe 3. A. the monarchy 4. B. military service 5. D. serfs/peasants
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question 1 if a human cell has more or less than the correct number of …
A. It can result in humans not being able to reproduce, B. It can cause mutations in the DNA of the human ### Question 2
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question 25 a scientist observed that during the course of a chemical r…
A. oxygen availability became limited
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in a molecule of double - stranded dna, the amount of adenine present i…
- Question 1: d. Thymine - Question 2: c. The ivy, that grows upward, has nearby objects to climb, and is exhibiting thigmotropism. - Question 3: d. to modify bacteria into an inf…
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why is trna called transfer rna? o a they look like a little truck unde…
First question: d. It carries/transfers a specific amino acid to the ribosome during protein synthesis. Second question: d. Scientists gained more knowledge about DNA as new evide…
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question 18 what is the main goal of the central dogma? to create prote…
A. To create proteins to carry on body functions # Question 19
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a cell is placed in an isotonic solution. how does the cell maintain ho…
A. There is no movement of water molecules into or out of the cell because the concentrations of solute particles inside and outside the cell are the same.
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question 17 match the dna key terms to their correct definition. matchy…
1. e. one of four nitrogenous bases found in DNA and RNA; pairs with thymine or uracil 2. h. principle that bonds in DNA can form only between adenine and thymine and between guan…
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question 16 put the following processes of protein synthesis in the cor…
6, 5, 3, 2, 4, 1
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question 15 which rna carries amino acids to the ribosome during transl…
B. tRNA
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a number of organelles allow the cell to produce and distribute protein…
1. Proteins are assembled on ribosomes. 2. Proteins are modified on the rough endoplasmic reticulum. 3. Proteins are modified, sorted, and packaged in the Golgi apparatus.
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what are the main steps of pcr? 1. primer annealing at 55 to 65 oc 2. a…
The correct order of the main steps of PCR is 3 (Denaturation of the DNA at 94 to 98°C), 1 (Primer annealing at 55 to 65°C), 4 (Primer extension at 72°C). Step 2 (After one cycle,…
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which organelles allow plants to support heavy structures such as leave…
D. the vacuoles because they are filled with fluid, which provide rigidity
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what are the main steps of pcr? 1. primer annealing at 55 to 65 oc 2. a…
d. No matching samples
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question 12 the picture shows dolly, the first cloned organism. what im…
a. It opened the door to the idea of cloning other animals
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all cells contain cell membranes. which of the following describes the …
D. Cell membranes are composed of lipid molecules, which provide a flexible structure.
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cancer is the result of uncontrolled cell division cells which create w…
- **Question 9**: a. Uncontrolled cell division - **Question 10**: b. The plant's cells would lose water - **Question 11**: d. Yes, because the error happened in a gamete
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question 5 a cell biologist compared the properties of rough endoplasmi…
Question 5: C. Rough ER has ribosomes on its surface. Question 6: B. sequence of nitrogen bases in a strand of messenger RNA, and the protein made.
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question 1 the information in the mrna code is used to make a what? o a…
a. polypeptide # Question 2
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which of the following structures are typically present in both plant a…
D. mitochondria
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lysosomes are organelles that contain enzymes. which of the following i…
C. Lysosomes break down lipids, carbohydrates, and proteins.
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a model of a cell is shown. the cell is choose because it choose review…
The cell is prokaryotic because it lacks a nucleus and membrane - bound organelles.
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a number of scientists made contributions to cell theory. which scienti…
C. Robert Hooke
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based on what you have learned about photosynthesis, select the true st…
- Photosynthesis uses light energy to produce food molecules. - Food provides an organism with energy - rich molecules, which are broken down in cells. - The chemical bonds betwee…
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scientists sometimes want to show whether more energy is used or releas…
\(6CO_{2}+6H_{2}O + \text{light energy}\to C_{6}H_{12}O_{6}+6O_{2}\)