Biología
Biología celular, genética, ecología y fundamentos de ciencias de la vida.
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multiple choice: the main immediate source of atp (lasting about 10 sec…
A. creatine phosphate
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each thin filament consists of: a a double strand of myosin molecules b…
E. two actin protein strands coiled helically around each other
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read the excerpt from act 3 of a dolls house helmer: you have loved me …
"I will advise you and direct you. I should not be a man if this womanly helplessness did not just give you a double attractiveness in my eyes."
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multiple choice question firms that want to hire workers o must pay hig…
must pay higher wage rates to attract them away from the alternative job opportunities available to them.
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question 23 (multiple choice worth 5 points) (04.05r mc) what role did …
It motivated the European powers to find an alternative route to Asia.
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read the excerpt from act 3 of a dolls house. helmer: do you know, you …
Helmer acts kindly toward Mrs. Linde while she is present, but insults her when she leaves.
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7. in the image to the right, the molecules are moving from the left to…
7. Passive transport. Molecules move from high (left) to low (right) concentration (no energy needed). 8. No. No transport proteins (channels/carriers) are shown in the image.
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6. the sodium - potassium pump is a type of active transport that moves…
B. The sodium - potassium pump requires energy and a protein to move sodium and potassium ions.
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which statement best describes the effect of the repetition of \men\ pr…
It reinforces the idea that all people, not just the speaker's father, should fight against death.
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the boundaries between adjacent sarcomeres are marked by: a m lines b h…
E. Z lines
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the role of calcium ions in muscle contraction is to bind: a troponin b…
A. troponin
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choose the answer that places the following key steps of skeletal muscl…
A. 2; 1; 5; 4; 3
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question 6 acetylcholine release at a neuromuscular junction is stimula…
C. calcium
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the activity that directly triggers the sarcoplasmic reticulum to disch…
C. an action potential propagates across the sarcoplasm and down the T tubules
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question 3 cross bridges form between: a actin and myosin b actin and t…
A. actin and myosin
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during muscle contraction the _________ move closer together. a z lines…
A. Z lines
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which structures are similar in function, but do not indicate that the …
analogous structures
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which of these statements best sums up evolution? rapid change in speci…
change in a population through genetic variation over time
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dogs have a reduced nonfunctional digit on their paws known as a dewcla…
vestigial structure
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marsupials are found in north america and australia, but they would not…
The continents were once connected, and marsupials were able to migrate over the land.
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studying the anatomy of different organisms allows scientists to determ…
C. analogous
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which lists the correct order of evolutionary history? o crabs, jellyfi…
jellyfish, reptiles, mammals
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what is the most likely reason that horses and mountain goats have hoov…
They have homologous structures because they have a common ancestor.
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which kind of evidence studies mineralized bone, footprints, or organis…
fossils
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biology shows us the fossil record and comparative anatomies. chemistry…
biology, chemistry, and geology
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cells need to bring in molecules to carry out cellular processes. often…
1. A represents passive transport by diffusion. Molecules move down the concentration gradient without energy or protein channels. 2. B represents facilitated diffusion (passive t…
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when designing an experiment we need to decide what things we will chan…
- Independent variable: Total Mass - Dependent variable: Cart Speed - Controlled variable: Type of surface
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1. animal cells, plant cells, fungi, and protists often have vacuoles. …
1. a) 2. d)
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in a group of syrian hamsters, some individuals have straight fur and o…
Gumdrop's phenotype for the fur texture gene is straight fur. Gumdrop is homozygous (not heterozygous) for the fur texture gene. Gumdrop's genotype (not phenotype) for the fur tex…
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unit 2 - challenge 2.3: the muscular syst what is a crossbridge in the …
A. The binding of myosin heads to actin
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what is the basic unit of muscle contraction in skeletal and cardiac mu…
C. Sarcomere
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drag each tile to the correct box. match each event with the location w…
- The Union army holds Confederate forces under siege for 47 days. → Vicksburg - General Robert Lee surrenders the Army of Northern Virginia. → Appomattox Court House - General St…
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what is the specialized smooth endoplasmic reticulum in muscle fibers t…
B. Sarcoplasmic reticulum (SR)
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*to autumn* by john keats season of mists and mellow fruitfulness, clos…
describes a single speaker's feelings.
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match each claim to the evidence statement that supports it. an organ s…
- Claim: An organ system works with other organ systems to perform more complex functions. Evidence: The small intestine helps to transfer nutrients to the blood. - Claim: Each or…
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multiple choice question in order to save money, reuters has more than …
outsourcing.
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unit 2 - challenge 2.2: the skeletal syster support, movement, and prot…
A. Red marrow
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multiple - choice question what does the cell membrane do? take in food…
lets specific molecules in and out of the membrane
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unit 2 - challenge 2.1: the integumentary what is the function of the e…
a. To protect the nail matrix
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select the true statement. organ systems use only some of their parts t…
Organ systems are larger and more complex than any of their parts.
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match each claim to the evidence statement that supports it. claim the …
- "The structure of an organ helps the organ carry out its function." → "The heart’s four hollow chambers and muscular walls enable it to receive and pump blood." - "The tissues i…
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when might an increase in biodiversity lead to a decrease in the stabil…
When invasive species are added to an ecosystem.
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assignment: reflect on the lab active apply diffusion principles to a r…
Starch molecules are too large to diffuse into cells.
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starch molecules are too large to pass through the tubing into the beak…
not washing the outside of the tubing after filling it with starch, reusing droppers for different solutions, using a beaker that had not been cleaned thoroughly.
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how does a decrease in biodiversity impact an ecosystem?
A decrease in biodiversity makes an ecosystem less stable and resilient. It reduces the variety of species performing key functions (e.g., pollination, nutrient cycling), weakens …
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what are three reasons that organisms interact?
For food, for reproduction, for shelter.
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what prize was awarded to bernardo albero houssay? (1 point) nobel peac…
Nobel Prize for Medicine
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what achievement revealed bernardo alberto houssays intelligence as a b…
He was admitted to the university at age 14.
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if a test had been done of the solution inside the dialysis tube, what …
The glucose would be found because it would reach an equilibrium.
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what happens to the other organisms in a food chain when an organism in…
The population of the organisms that prey on the lost middle - level organism will likely decrease (due to lack of food), and the population of the organisms that the lost middle …
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multiple - choice question how do bacteriocidal antibiotics help to fig…
They kill bacteria by preventing the production of a cell wall.
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ati fundamental test 2024 (nursing process) 24.a nurse removes an indwe…
24. A. Temporary urinary retention 25. A. Breathing ranging from very deep to very shallow with periods of apnea 26. A. Repeat the auscultation after asking the client to breathe …
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international trade organizations promote free trade by encouraging cou…
limit their protectionism policies.
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what helps countries import things they cannot make while allowing them…
international trade
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before the industrial revolution, how did european states typically man…
They established control over vast territories.
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which is an example of the progression from cells to systems in a multi…
Heart cells form heart tissue, which makes up the heart organ and contributes to the circulatory system.
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ocean currents quick check how do prevailing winds produce ocean curren…
Heat from the sun causes circulation patterns of warm and cool air.
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cells, tissues, organs, and systems collaborate in a multicellular orga…
First question: B. a person running a marathon, using their muscular system for movement Second question: A. The related organ might not work properly
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nucleic acids are made of a long chain of... simple sugars. nucleotides…
B. nucleotides.
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match each civil war battles with its outcome. battle of antietam battl…
- Union Army Victory: Battle of Antietam, Battle of Gettysburg - Confederate Army Victory: Battle of Chancellorsville
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1. assume that the grasshopper in the food pyramid above must eat half …
1. \(10\) blades of grass. 2. \(100\) blades of grass.
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your computer is really hot. you need to use your computer to get work …
Clean the internal components on the computer.
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question 74 mark this question according to the central dogma, which is…
DNA → RNA → Protein
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question 73 mark this question to which cell does the myeloid stem cell…
Proerythroblast
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question 72 which cell is derived from a lymphoid stem cell? eosinophil…
T - lymphocyte
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question 70 mark this question which is the correct sequence of events …
Capacitation → Acrosomal reaction → Cortical reaction → Union of pronuclei
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select the correct answer. what was the effect of the battle of chancel…
C. They gained the confidence to attempt a second invasion of the North.
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question 68 which component of blood is involved in the formation of bl…
Thrombocytes (platelets)
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question 67 mark this question thyroid hormones increase the number of …
Permissive effect
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4. if only 10% of the energy from one trophic level passes up to the ne…
For question 4: The 90% of energy is used for metabolic activities of the organism and lost as heat. For question 5: Yes, a pyramid is a good shape because it visually represents …
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question 60 which type of immune cell secretes antibodies? b cells plas…
Plasma cells
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5. do you think a pyramid is a good shape to represent how matter and e…
Yes, a pyramid is a good shape. Because in an ecosystem, energy transfer has a decreasing trend (about 10% rule). The broad base (producers) and narrowing upper levels (consumers)…
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question 59 mark this question which maternal hormone contributes to fe…
Thyroid hormone
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question 57 mark this question which digestive process is the passage o…
Absorption
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question 55 mark this question which is a \professional\ antigen presen…
Macrophage
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question 47 which of the following assures a continuous supply of blood…
Arterial circle
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question 41 mark this question what is the function of the acrosome? pr…
Prepare the sperm for fertilization
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during the middle ages, islamic scholars made key advancements in astro…
astronomy, mathematics, medicine, and physics.
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question 36 mark this question when macrophage oxidative metabolism is …
Nitric oxide
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tariffs and subsidies are both types of positive and negative incentive…
positive and negative incentives.
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question 34 mark this question where does the embryo implant for placen…
Internal opening of the cervix
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how did the telescope help make the scientific revolution possible? it …
It allowed scientists to observe objects in space in much greater detail.
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question 31 mark this question in which situation does potassium from t…
Hyperkalemia
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question 29 mark this question how is water absorbed in the small intes…
Osmosis
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question 27 which female reproductive organ is homologous to the male t…
Ovaries
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a students cat gave birth to a litter of kittens. the student noticed t…
C. The brown kitten and the white kitten inherited combinations of chromosomes with different genes for the two fur colors.
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which of these statements is supported by information in the graph? the…
Many important scientific instruments were invented during the Scientific Revolution.
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6. a full - sized cow needs about 100 square feet of pasture to graze o…
Approximately 61 classrooms.
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question 20 mark this question which is a function of the large intesti…
Reabsorb the water from indigestible food material and processes the waste material
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question 18 what causes the wavy appearance of the lumen and tunica int…
Internal elastic membrane of the tunica interna
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in tulips, alleles for purple petals are dominant to alleles for white …
D. The tulip will have purple petals because the allele for purple petals is dominant, and the dominant allele always masks the recessive allele.
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what mannerist conventions did parmigianino use in madonna with the lon…
distorted proportion and a complex composition
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question 12 which are the stem cells of the testis? sperm spermatid spe…
Spermatogonia
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use the information to answer the following question. two students are …
D. Student 2, because the offspring receives its genetic code from both parents
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the middle east is best associated with which internationally traded pr…
oil
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the middle east is best associated with which internationally traded pr…
oil
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a student claims that traits are inherited from parents through chromos…
B. Chromosomes are structures that carry genes, and genes determine traits.
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bioethics often deals with questions that do not have clear right or wr…
Bioethics is the study of ethical issues in biological research, medicine, and healthcare. It is essential as it addresses moral dilemmas from tech advancements. For human cloning…
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which of the following best explains what would happen to animal cells …
A. Animal cells would not be able to produce oxygen
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cells contain specialized structures called organelles that have specif…
B. In animal cells, the cell membrane allows materials in and out of the cell, while the mitochondria uses nutrients to make energy for the cell.