Biología
Biología celular, genética, ecología y fundamentos de ciencias de la vida.
-
biologists have noticed that the chirping rate of crickets of a certain…
\(T=\frac{1}{4}N + 41.75\) (or \(T = 0.25N+41.75\)) ### Part (b)
-
central case mining for...cell phones? read p. 391 in your environmenta…
1. Tantalum 2. Coltan (short for columbite-tantalite) is an ore that contains the mineral tantalite, from which the metal tantalum is extracted. 3. The metal is causing conflict b…
-
question 1 (1 point) what are two developments that existed in africa b…
Question 1: Large stone-built cities and organized states with formal systems of governance Question 2: The desire to access African gold, trade goods, and established trade route…
-
international conflict suez canal crisis summary: u.s. response results…
### Suez Canal Crisis - **Summary**: 1956 Egyptian nationalization of the Suez Canal led to a military invasion by Israel, Britain, and France, triggering a global crisis. - **U.S…
-
identify features that are present in eukaryotic cells but not in proka…
C. Membrane - bounded organelles, D. A nucleus
-
select all of the following that are functions of mitosis. a. produce t…
A. Produce two daughter cells from one parent cell, B. Produce daughter cells that are genetically identical, D. Growth and repair of body tissues ### Second Question (Correct ord…
-
slaughter the gorillas and other wild animals for food—a practice known…
1. Mining for coltan damages gorilla habitat as more people move into these areas, leading to the spread of deadly microorganisms like Ebola and E. coli through water or soil. 2. …
-
international conflict korean war summary: u.s. response results rise o…
### Korean War 1. International Conflict Summary: In 1950, communist North Korea invaded U.S.-backed South Korea, sparking a Cold War proxy war to unify the Korean peninsula. 2. U…
-
use the conflict/response chart to organize and analyze information abo…
| International Conflict | U.S. Response | Results | |-------------------------|---------------|---------| | **Chinese Revolution**<br>Summary: 1945-1949 civil war between U.S.-ba…
-
b. muscle grows with physical inactivity. c. fat converts into muscle b…
None of the provided options B, C, D are correct. (Note: Option A is missing from the image, so a complete valid answer cannot be confirmed without it.)
-
which of the following drugs is an inhaled mast cell stabilizer prophyl…
B. Cromolyn sodium
-
11. describe the ways in which protist cells are both similar to, and d…
### Similarities to plant and animal cells: - All are eukaryotic, with a membrane-bound nucleus, cytoplasm, and membrane-bound organelles (mitochondria, ER, Golgi apparatus, etc.)…
-
cells of other organisms 10. observe organism 5, mayorella. identify wh…
A. Nucleus: Visible B. Chloroplasts: Not Visible C. Mitochondria: Not Visible D. Cell Membrane: Visible E. Cell Wall: Not Visible
-
cells of other organisms 9. observe organism 4, flexiglena variabilis. …
A. Nucleus: Visible B. Chloroplasts: Visible C. Mitochondria: Not Visible D. Cell Membrane: Visible E. Cell Wall: Not Visible
-
fill in the blank question solution a contains 30 grams of sucrose per …
hypertonic
-
cells of other organisms 7. observe organism 2, the diatom identify whi…
Nucleus: (Select option for "Not Visible") Chloroplasts: (Select option for "Visible") Mitochondria: (Select option for "Not Visible") Cell Membrane: (Select option for "Not Visib…
-
cells of other organisms 1000x dinobyon organism 3 change 8. observe or…
A. Nucleus: Visible B. Chloroplasts: Visible C. Mitochondria: Not Visible D. Cell Membrane: Visible E. Cell Wall: Visible
-
multiple select question select all that apply solution a contains 10 g…
- There will be no NET movement of water molecules in either direction. - There will be no movement of sucrose in either direction.
-
multiple choice question when a cell is placed in a hypertonic solution…
C. Out of the cell because the water is attracted to move toward the higher solute concentration. (Note: Assuming the options are labeled A, B, C with A: There is no net movement,…
-
multiple choice question a cell is placed in a 15% nacl solution and th…
C. Hypertonic (Note: Assuming the options are labeled as A. Isotonic, B. Hypotonic, C. Hypertonic for clarity, the correct option is C. Hypertonic as the cell shrinks due to water…
-
multiple choice question which of the following is not a factor in toni…
C. The electrical charge of the solution
-
multiple choice question what is osmotic pressure? the amount of water …
C. The amount of pressure needed to oppose osmosis
-
multiple choice question solution a contains 30 grams of sucrose per li…
There will be a net movement of water from Solution B to Solution A.
-
multiple select question select all that apply which of the following a…
C. The concentrations of water will tend to equalize on each side of the membrane. D. Water molecules will move across the membrane toward an area of higher solute concentration.
-
multiple choice question a selectively permeable membrane is placed bet…
Toward the RIGHT
-
now, describe how each drug works in terms the patient will understand.…
- Blocks the production of a specific chemical that causes the airway to constrict: Leukotriene Inhibitors - Blocks the specific part of the nervous system that wants to cause the…
-
multiple choice question what type of extracellular solution would caus…
B. Hypotonic
-
multiple choice question osmosis involves which type of membrane transp…
D. Diffusion
-
drag each drug classification to the description of how it works. descr…
- Relieve inflammation and swelling, reduce airway sensitivity: Corticosteroids - Block the chemical in the parasympathetic system that promotes bronchospasm: Anticholinergics - R…
-
multiple choice question which of the following factors affect the toni…
C. The concentration of nonpermeating solutes outside of the cell compared to inside of the cell
-
multiple choice question which of these cell - building molecules is ma…
A. Proteins
-
multiple choice question which of these cell - building molecules is ma…
A. Proteins
-
identify the drug classifications that are used to treat asthma. drug a…
Used: Anticholinergics, Corticosteroids, Leukotriene Inhibitors, Mast Cell Stabilizers, Sympathomimetics Not Used: Cephalosporins, COMT Inhibitors, Proton Pump Inhibitors, Periphe…
-
cells of other organisms explain your reasoning. i need a hint organism…
Organism 1: A. Animal-like protist Reasoning: The cell shape is oblong, moves by itself, and appears to hunt and consume other organisms for energy. The cell shape is oblong and l…
-
cells of other organisms 1000x pivot diatom i need a hint organism 1 re…
A. There are green chloroplasts and a cell wall.
-
multiple choice question during osmosis, water will move through an imp…
C. through a selectively permeable membrane and from the area with lower solute concentration to the area of higher solute concentration.
-
multiple choice question what are the building blocks of glycogen? mono…
A. Monosaccharides
-
cells of other organisms 200x paramecia 1. in this section there is ano…
1. Paramecia are single-celled organisms, while plant and animal cells are specialized cells that make up multicellular organisms; paramecia have a pellicle instead of a plant cel…
-
multiple select question select all that apply which of the following a…
A. Antibodies C. Enzymes D. Structural molecules
-
multiple choice question what drives diffusion? ○ chemical reactions wi…
D. The random movement of molecules
-
multiple choice question the difference between the structure of satura…
C. unsaturated fats contain one or more double bonds between their carbon atoms
-
cells of other organisms 1000x diatom pivot organism 2 change 1. in thi…
1. Organism #1 is similar to a plant cell because it has a cell wall and chloroplasts for photosynthesis. 2. These samples are different than plant cells because they have a silic…
-
multiple choice question suppose you have solute molecules at a very hi…
D. A concentration gradient
-
multiple select question select all that apply which of the following s…
B. Centrioles, C. Smooth ER, E. Nucleus, F. Rough ER, G. Mitochondria, H. Cell membrane
-
multiple select question select all that apply which of the following m…
A. Sucrose, B. Glycogen, C. Polysaccharides, D. Disaccharides
-
multiple choice question which of these occurs in both saturated and un…
A. Fatty acids
-
multiple select question select all that apply proteins have many funct…
The correct options (after correction) are: - energy storage. - motion. - defense. - support. - transport. (Note: The initial selection missed "motion" and "transport" which are a…
-
multiple choice question when a glycerol molecule is chemically bonded …
B. triglyceride
-
which amino acid is specified by the codon aug? ile val ser met
Met
-
fill in the blank question fatty acids without double bonds between the…
saturated
-
multiple choice question what is the term used to describe each glucose…
D. Monomer
-
tell if each example is natural selection, artificial selection or gene…
7. Natural Selection 8. Natural Selection 9. Genetic Engineering 10. Artificial Selection 11. Natural Selection 12. Artificial Selection 13. Natural Selection 14. Natural Selectio…
-
although nearly all cells in a multicellular organism contain the same …
- Transcription factors and histone proteins regulate transcription in different ways. - Most of an organism's cells contain the same DNA. - Different cells in a multicellular org…
-
multiple choice question the components of lipids that consist of long …
D. fatty acids.
-
multiple choice question which is a lipid? ○ dna ○ enzyme ○ starch ○ ch…
D. Cholesterol
-
complete the paragraph. rna nucleus protein synthesis dna replication r…
Located inside the **nucleus** of eukaryotic cells, an organism's **DNA** contains instructions for making proteins. These genetic instructions are carried by **RNA** to a **ribos…
-
onions grow underground. therefore, onion bulb cells b. choices: reset …
store nutrients and do not perform photosynthesis, therefore do not need chloroplasts
-
multiple choice question which of these is a carbohydrate? ○ cholestero…
C. Sugar (assuming the options are labeled as A. Cholesterol, B. Enzyme, C. Sugar)
-
after a gene is activated by a transcription factor, what happens next?…
1. RNA polymerase binds to a promoter at the beginning of a gene. 2. A section of DNA is unzipped, forming a transcription bubble. 3. RNA nucleotides are paired with DNA nucleotid…
-
multiple select question select all that apply which of the following a…
A. Monosaccharides, C. Glycerol, E. Amino acids, F. Fatty acids
-
read about how transcription factors are involved in a negative feedbac…
- Transcription can be controlled by transcription factors to meet an organism's needs. - Insulin gene transcription is regulated by blood glucose levels.
-
dialysis bags can be used as models of cells to explore the movement of…
1. The mass of the dialysis bag will increase. 2. The solution in the dialysis bag will turn blue-black.
-
fill in the blank question the three types of macromolecules that are u…
proteins (or nucleic acids; however, the most standard answer in this context is "proteins" or "nucleic acids"—but the correct answer here, based on typical biology curriculum, is…
-
complete the paragraph. skeletal muscle cells and pancreatic beta cells…
1. Skeletal muscle cells and pancreatic beta cells 2. myoglobin
-
although nearly all cells in a multicellular organism contain the same …
- Transcription can be regulated by histone proteins and transcription factors. - Not every gene in a cell's DNA is transcribed.
-
use the scenario to answer the question. scenario: you observe the grow…
Auxin will build up on the lower side of the root and inhibit cell growth.
-
multiple choice question animal cells have an organelle in which their …
D. nucleus.
-
according to the rules of complementary base pairing, which rna nucleot…
B. AUCGU
-
unlike ferns, angiosperms use ______ to contain their embryos. (1 point…
O seeds
-
multiple choice question how are lipids best defined? lipids are biolog…
A. Lipids are biological compounds that are not soluble in water.
-
during elongation, how does the forming mrna strand compare to the dna …
template...coding...thymine
-
after tossing and turning in bed for 20 minutes, ahmed still could not …
1. Relax in another room before returning to bed 2. Manifest content
-
recall that the bonds holding together a dna molecules two nucleotide s…
more...less
-
match each term to its description. terminator promoter transcription b…
- The strand of DNA to which complementary RNA nucleotides are added, creating mRNA: template strand - A section of a gene unzipped by RNA polymerase: transcription bubble - An en…
-
alternation of generations in plants permits (1 point) both mitosis and…
both mitosis and meiosis.
-
question 1 (4 points) 1. if you procrastinate, your time management sty…
1. a. Open-ended 2. d. Push negative thoughts, such as "It's too late," out of your mind 3. c. Daily plan
-
matching question match each eukaryotic cell structure to its function.…
- Mitochondria → Location of cellular respiration, which produces ATP - Rough endoplasmic reticulum → Network of membranes studded with ribosomes, plays a role in protein synthesi…
-
which animal is often used to model human body systems? (1 point) rabbi…
B. pig
-
multiple select question select all that apply carbohydrate molecules c…
A. Hydrogen, D. Carbon, E. Oxygen
-
multiple select question select all that apply which of the following a…
C. Cytoplasm, E. Plasma membrane
-
rebeya was studying for her midterm, and after a while, her thoughts we…
Consolidation
-
chapter 04 test prep: consciousness why is rem sleep often referred to …
1. The brain is actively working during REM sleep. 2. (Note: The second question's option list is incomplete. The correct function is memory consolidation, which supports improved…
-
multiple choice question what is a monomer? a small repeating molecular…
A. A small repeating molecular unit in a polymer chain
-
match each stage of transcription to its description. termination initi…
- RNA polymerase moves down the DNA and pairs RNA nucleotides along the template strand. → elongation - RNA polymerase binds to a promoter and unzips a section of DNA. → initiatio…
-
complete the paragraph. during protein synthesis, are made from . the f…
During protein synthesis, **proteins** are made from **amino acids**. The first step is transcription, which takes place in the nucleus. During this step, a protein-coding molecul…
-
select all that apply which of the following types of molecules are cat…
C. DNA, D. Proteins, E. Lipids, F. Carbohydrates
-
summarize the functions of the nervous system. (1 point) the nervous sy…
- The nervous system controls the respiratory system by sending signals to the muscles, telling them to flex and move limbs. - The nervous system controls the digestive system by …
-
multiple choice question the type of cell division that is used in tiss…
B. mitosis
-
matching question match each step of mitosis to a key event during that…
- "The genetic material condenses into chromosomes." → Prophase - "The homologous chromosomes line up at the central line of the cell." → Metaphase - "The sister chromatids are se…
-
summarize the functions of the nervous system (1 point) the nervous sys…
- The nervous system controls the respiratory system by sending signals to the muscles, telling them to flex and move limbs. - The nervous system controls the digestive system by …
-
multiple choice question which organelle functions as the control cente…
C. Nucleus
-
intro to cells sample 1 change characteristic individual cells are sepa…
- Individual cells are separated from one another - Cells contain some sort of barrier around them - Cells are more round in shape - Cells contain circular structures within them,…
-
which is the function of the esophagus? (1 point) absorb nutrients from…
D. connect the mouth with the stomach
-
multiple choice question interphase is ○ a term to describe cells that …
C. the portion of the cell cycle when the cell is getting ready to divide. (Here we assume the options are labeled A, B, C in order. If the original labeling is different, adjust …
-
state and federally funded healthcare programs ? serves low-income adul…
3.018) A. Medicaid: Healthcare for Those in Need 3.019) B. Large nations meet once a year to discuss important issues of the global economy and security. 3.020) F. It protects U.S…
-
intro to cells sample 2 change characteristic individual cells are sepa…
- Individual cells are separated from one another - Cells contain some sort of barrier around them - Cells are more round in shape - Cells contain circular structures within them,…
-
multiple select question select all that apply which of the following d…
A. Cell membrane, D. DNA, E. RNA, F. Ribosomes
-
the nervous system is responsible for (1 point) exchanging gases betwee…
receiving and processing stimuli from the body.
-
multiple choice question the part of the cell cycle during which the ge…
A. mitosis
-
intro to cells characteristic individual cells are separated from one a…
- Individual cells are separated from one another - Cells contain some sort of barrier around them - Cells contain green, round structures inside them - Cells are more angular in …