生物
细胞生物学、遗传学、生态学与生命科学基础。
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a) is the microbiologist’s hypothesis testable? why or why not?
It depends on the nature of the hypothesis. If it involves measurable variables and can be investigated through experimentation or observation, it is testable. If it involves non …
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figure 18-9 sexual selection when the gene pools shifts, populations ev…
Female ducks preferentially choose males with bright, colorful feathers during non - random mating. Males with these traits are more likely to reproduce and pass on the genes for …
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fill in the blank substrate concentration lock and key model catalyst l…
1. substrates 2. products 3. the enzyme 4. the enzyme is unchanged 5. biological catalysts 6. lower 7. activation energy 8. temperature 9. pH 10. shape 11. function 12. catalysts …
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which of these is step 2 in the problem - solving model? a. evaluate al…
B. Gather information
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reading check describe what are two circumstances under which genetic d…
1. Founder effect: When a small group of individuals separates from a larger population to establish a new population in a different area, the genetic makeup of the new - founded …
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a scientist finds a fossil that she thinks might make a good index foss…
It is the remains of an organism that is found in abundance nearby.
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describe one way parasites can affect their hosts
Parasites can steal nutrients from their hosts, leading to malnutrition - like symptoms.
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which characteristic of life best describes the process of photosynthes…
using energy
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directions: answer the following questions based on chapter 1 of the st…
1. c. It shows that Huckleberry feels isolated living with Widow Douglas 2. d. by allowing the reader to experience the story through Huckleberry’s eyes 3. a. Huckleberry Finn 4. …
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symbiotic relationships worksheet biology - 9th grade name: date: perio…
1. Mutualism 2. Commensalism 3. Parasitism 4. Symbiosis 5. Mutualism 6. Parasitism 7. Commensalism 8. Mutualism 9. Parasitism 10. Commensalism
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read the passage from sugar changed the world. the leaders of the ameri…
B. by quoting Thomas Jefferson's views on the dangers of enslaved Haitians rebelling C. by describing John Adams's actions to support Haiti in its fight against the French E. by i…
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13. the plant where goodyear tires are made is an example of which type…
13. a. manufacturing business 14. c. one - fourth 15. Opportunities 16. c. Entrepreneurs take all the risks involved with starting a business 17. b. gather information
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which is biotic? water temperature sapling rocks
C. sapling
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which of the following is an example of an abiotic component? water tre…
Water
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read the passage from sugar changed the world. sugar was the connection…
Economic demand for sugar led to political pressure to end enslavement.
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reading check compare and contrast how is the action of natural selecti…
Similarities: Natural selection acts on the phenotypes associated with both single - gene and polygenic traits, favoring traits that increase an organism's fitness (ability to sur…
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which occurs when the body responds to the environment by maintaining a…
B. homeostasis
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4. which level of an energy pyramid is most likely to have the highest …
4. The producer level. 5. Decomposers.
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several steps led to the evolution of 13 different finch species on the…
1. Founder finches arrive on one of the Galápagos Islands. 2. A few birds crossed to another island and the two bird populations were now geographically isolated. 3. Changes in ge…
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which is one of the five characteristics of life? having organs contain…
growing and developing
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how were redis and pasteurs experiments similar? both studied the growt…
C. Both tested the idea of spontaneous generation.
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five closely related species of frogs live in ranges that overlap. some…
A. Temporal isolation: The species remain separate because the period of most active mating differs. C. Geographical isolation: The species remain separate because they have diffe…
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15. the dna sequence is a code with instruction to assemble
proteins
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which is biotic? wind iron gate sunlight leaf
D. leaf
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which would best be described as abiotic? water in a stream fish in a s…
water in a stream
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living organisms, such as trees and cows, share certain characteristics…
One of the organisms gets energy directly from the sun, the other does not.
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a college senior is writing a story about a girl named jacqueline who j…
B. The writer could use her own memories about middle school, and she could talk to other middle schoolers D. The writer could reflect on her favorite characters in short stories,…
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more than 20 species of hawaiian honeycreepers are descended from a gol…
The ancestral finch founded a new population on one of the Hawaiian Islands. Due to the founder effect, allele frequencies of the first small population on one of the islands coul…
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which unifying principle(s) form the basis of biology? select all that …
A. gene theory B. evolution C. cell theory D. homeostasis
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which statement about cells is incorrect? a all living things begin lif…
c. It takes many cells to make a living organism
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what is the term for a characteristic that helps a living thing survive…
Adaptation
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explaining 7. why did justinian make his army stronger?
Justinian made his army stronger to reconquer lost Roman - Empire territories, defend against external threats such as the Sassanid Persians and barbarian tribes, and to maintain …
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what is the correct ordering of nucleus, chromosome, and gene from smal…
C. gene, chromosome, nucleus
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this group was created in 1995 to promote trade around the world. * wor…
A. World Trade Organization
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genes are located on structures called
chromosomes
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9. which of the following is not one of the four major classes of organ…
9. A. Minerals 10. A. Peptide bonds 11. A. Storing and transmitting genetic information.
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four unifying principles of modern biology are cell theory, gene theory…
Evolution
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demonstrate basic reading comprehension in any language. it also increa…
- Paragraph 4: World War I, economic concerns, and eugenic ideas. - Paragraphs 5 - 7 A: Non - Protestant religious background, fleeing persecution or economic hardship. - Paragrap…
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the process of maintaining a stable internal environment or keeping thi…
Homeostasis
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which principle of biology states that all living organisms are made of…
B. cell theory
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the substrate of an enzyme is o an organic accessory molecule o one of …
the molecule(s) that the enzyme acts on
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5. considering the brevity of the text, what can be inferred about the …
A. It is likely a broad and fundamental area of study within biology and chemistry, with numerous sub - topics and complexities beyond this brief overview. A. The focus would like…
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if the two populations have different mating behaviors that prevent int…
behavioral
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2. if two gene pools become separated due to a physical barrier like a …
geographic
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a(n) ____ reaction creates bonds between substrate units; a(n) ____ rea…
C. anabolic; catabolic
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to repair a cell membrane, which macronutrient would supply the needed …
C. fats
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question 2 which type of bond holds atoms together in a water molecule?…
Question 2: B. covalent bond Question 3: Oxygen, carbon, hydrogen, nitrogen
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where (or how) do we obtain essential amino acids? from carbohydrates i…
from protein in our diet
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which statement regarding cofactors and coenzymes is false? cofactors a…
B. Cofactors and coenzymes can replace enzymes in cells.
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1. identify four unifying principles of modern biology. 2. how are gene…
1. Cell theory, gene theory, homeostasis, evolution. 2. Genes are segments of DNA on chromosomes. 3. The ability to maintain a stable internal environment. 4. Adaptations are resu…
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1. would separated populations of squirrels be able to interbreed if th…
It depends. If there has been no significant genetic divergence during separation, they can interbreed. If genetic differences have accumulated leading to reproductive isolation, …
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there is a booming business behind screens. each year, more than 1 bill…
C. Americans spend most of their time looking at social media ads.
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enzymes speed up chemical reactions by ________. increasing the activat…
decreasing the activation energy
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what subunits are proteins broken down into during digestion? o glycero…
C. amino acids
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in todays world, screens are everywhere. a television and a computer ca…
A. show how screens can be found almost anywhere
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a multivitamin supplement is a(n) ____ supplement. micronutrient macron…
A. micronutrient
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compare types of models. which model best illustrates the formation of …
plastic bone
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1. identify four unifying principles of modern biology. 2. how are gene…
1. Cell theory, gene theory, homeostasis, evolution. 2. Genes are segments of DNA located on chromosomes. 3. The tendency of an organism or cell to maintain a stable internal envi…
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a scientist discovered fossils of an ancient reptile. the fossil had sh…
The fossil is an ancestor of both birds and crocodiles. This is because it has both reptilian and bird traits.
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17. books a used bookstore sells paperback fiction books in excellent c…
$2.5x + 0.5f$
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the table shows key features of hippos, ambulocetus, and whales. featur…
They show that whales had ancestors with functional legs for walking.
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the table compares key features of modern birds and archaeopteryx. feat…
Both have hollow bones, making them light for flight.
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excerpt from how the other half lives by jacob riis it was the stir and…
Riis reported that tenements initially served as a blessing for the industrious poor with limited earnings, providing nearby housing to their workplaces. However, as the city expa…
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a scientist finds a fossil with limb bones like those of modern whales.…
The fossil is an ancestor of modern whales, showing a shift from land to water.
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open ended question explain in your own words how the high specific hea…
Water's high specific heat moderates climate, stabilizes aquatic ecosystems, and regulates the Earth's atmospheric temperature through the water - cycle.
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which observation best shows that whales and hippos share a common ance…
Both have similar limb bones. A whale's limbs form flippers, while a hippo's limbs support walking.
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match each observation to the conclusion. move one answer to each box. …
Limb buds can grow into arms, wings, or fins, depending on the vertebrate. - adaptation to different environments Bird embryos develop forelimbs into wings, while human embryos gr…
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this organ system releases a signal when you are hungry. which organ sy…
nervous system
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10. directions drag and drop the correct answer choice to each answer b…
plant cells: squares animal cells: circles
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move the correct answer in the box provided. early - stage observation …
have shared origin but adapt differently
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pro v eu cells quiz keyser sanchez granda zoom add note question guide …
# Breve explicación: La citoplasma es un componente fundamental de todas las células, ya sea procariotas o eucariotas. Es un fluido gel - like que llena la célula y contiene iones…
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make the connection: your heart is dependent on oxygen from your respir…
circulatory system.
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8. which biomolecule is in the plant’s cell walls to help create its fi…
# Breve explicación: La celulosa, un carbohidrato complejo, es el componente principal de las paredes celulares de las plantas y le da rigidez y estructura firme. Glucosa es un mo…
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a scientist is studying the embryos of different animals. she notices t…
Whales had ancestors that lived on land and had legs. Over time, they adapted to life in water and lost their hind limbs.
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arrange the stages of embryo development from earliest to latest. move …
1. The embryos have similar structures, like gill pouches and tails. 2. The embryos grow larger, and gill pouches remain visible. 3. The gill pouches begin to disappear in mammals…
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7. the most new types cells to exist on earth are predicted to be our: …
Eukaryotes
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oxygen is taken into the body from the environment, and carbon dioxide …
respiratory system
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move the correct answers into the boxes provided. not all options will …
Dolphin and human embryos have arm and leg buds.
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6. id the two organelles that are in a plant cell but not in an animal …
Cell wall, Chloroplast
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main idea: enzymes allow chemical reactions to occur under tightly cont…
4. - Why enzymes are necessary: Speed up chemical reactions for life processes. - How structure affects function: Active - site shape determined by structure binds substrates. - I…
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match the traits to their significance as evidence of evolution. move o…
Evidence of a shared developmental pattern - Gill pouches and leg buds appear in all vertebrate embryos. Suggests a common ancestor with similar features - Leg buds disappear in m…
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what evidence shows vertebrates have a common ancestor but change as th…
All embryos have gill pouches, but they disappear in land animals.
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multiple choice question what is the reason for water molecules stickin…
A. Cohesion
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6. mitochondria - choose the correct answer - glucose for energy plant …
use
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4. all cells have ribosomes. - choose the correct answer -- - choose th…
True
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which comparison best shows that two species share a common ancestor? b…
Both have bones in their limbs. One has legs for walking, while the other has fins for swimming.
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before he became chancellor, hitler was imprisoned for a year for attem…
B. overthrow the Weimar government.
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3. directions drag and drop the correct answer choice to each answer bl…
Prokaryotes are the smallest cell types. Eukaryotes are the largest cell types.
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multiple choice 1 point read this text excerpt and answer the following…
He gradually increases Napoleon's power, showing small corruptions that build over time.
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2. chloroplasts - choose the correct answer - glucose in plants. - choo…
create
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1. the first types of cells to exist on earth are predicted to be the: …
# Breve explicación: Las bacterias son consideradas los primeros tipos de células en existir en la Tierra. Son organismos unicelulares procariotas que pueden sobrevivir en una amp…
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1. the first types of cells to exist on earth are predicted to be the: …
C. bacteria
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20. the some plants flourish in the desert biome because they— require …
require very little moisture
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in 1932, hitler became chancellor after the nazi party became the large…
the Nazi Party became the largest party in Germany.
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reading science 7. which products do not have scientific studies suppor…
D. Enzymes to promote immune system function
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5. you are in a health food store, looking at supplements to insure you…
5. D. A and C 6. C. They only work on one compound or reactant.
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3. one product that is promoted using scientific claims is enzymes. wha…
3. B. The properties of enzymes and how they function 4. C. Your body will become depleted of enzymes without an enzyme supplement.
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what is the mass of a blue whale? select the best estimate. 200 pounds …
200 tons
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13. which of the following typically occurs in the biosphere? the inter…
The interaction of plants and animals within specific climate regions
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some fossils provide evidence to suggest that earths climate has change…
temperatures