Biology
Cell biology, genetics, ecology, and life science fundamentals.
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passage as ruchira is packing her apartment while preparing to move in …
Biren admires the artwork, and Ruchira realizes she has been nervous about his reaction.
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which reason best explains why \the beginnings of the maasai\ can be cl…
It has supernatural features that help to explain the reason for the Maasai's traditions.
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dormant bodies produced by bacteria for survival rather than reproducti…
Endospores
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a collection of bacterial cells, all of which share an overall similar …
strain
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the internal gelatinous matrix of a cell, mostly composed of water, is …
cytoplasm
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multiple choice question the nature of which structure is used in the b…
cell wall
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multiple choice question which is more impervious to the action of anti…
B. typical gram - negative bacteria
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question 8 1 pts (teks us.15.b) this diagram shows working conditions d…
Labor reformers secured better working conditions through legislation
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(teks us.3.b) read the excerpt and answer the question that follows. ot…
There was decreased competition among producers.
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multiple choice question what manual would be most likely used by a med…
B. Bergey's Manual of Determinative Bacteriology
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fill in the blank question the bacterial cytoplasmic membrane is a(n) b…
phospholipid
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which group of archaea grows at very low temperatures? psychrophiles th…
psychrophiles
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the phospholipid bilayer that forms the most exterior layer in gram - n…
Outer membrane
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what is the primary function of bacterial endospores? o reproduction o …
survival
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the structure that determines the shape of a bacterium and protects the…
wall
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multiple choice question the intracellular gelatinous solution is refer…
B. cytoplasm
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the outermost layer of the cell envelope of a gram - positive cell is t…
B. peptidoglycan layer
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6 of 17 concepts completed fill in the blank question typical gram - ne…
outer membrane
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a cytoplasmic membrane, ribosomes, chromosome(s), and cytoplasm are fou…
C. all
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a major structural component of the bilayer in a bacterial cell membran…
Phospholipid
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4 of 17 concepts completed multiple select question select all that app…
Cell wall Cytoplasmic membrane Outer membrane
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which term is used to describe the phospholipid barrier surrounding the…
C. outer membrane
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3 of 17 concepts completed multiple choice question what is the glycoca…
an extracellular coating that provides protection to the cell
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select all that apply. which of the following are the functions of the …
maintaining the shape of the bacterium, preventing destruction with changes in osmotic pressure
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2 of 17 concepts completed ordering question click and drag on elements…
Outer membrane, Cell wall, Cytoplasmic membrane
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courses > principles of biology i > assignments > lrnr - chapter 4 > 4.…
pili
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what is false about the cell in the picture below? it contains a nucleu…
It's cytoplasmic granules bond to a positively charged dye/stain.
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what is true about the hormone that is released from the organ that the…
It causes plasma concentration of glucose to decrease.
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what is true about the hormone that is released from the organ at the t…
It increases oxygen consumption
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what is most true about the receptor shown in this image? beta - 1 rece…
T3 and T4 (thyroid hormones) increase it's expression.
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what is true about thrombin? it converts fibrinogen into fibrin. it act…
Question 21: It converts fibrinogen into fibrin. Question 22: They arise from lymphoid stem cells in the bone marrow.
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what happens when the plasma concentration of glucose increases? epinep…
For the first question: Insulin gets released from beta cells in the islets of Langerhans of the pancreas. For the second question: It is a hormone that is produced by cells in th…
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question 10 (1 point) which hormone(s) increases basal metabolic rate (…
Question 10: D. T3 and T4 (Thyroxine) Question 11: D. erythrocytes
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decreased blood volume or blood pressure, or high extracellular k+ conc…
aldosterone
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question 7 (1 point) saras erythrocytes contain type a agglutinogens on…
No, because Jose's plasma contains antibodies to Type A blood.
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clarence darrow, defended scopes in his trial by making the argument th…
Scopes had done nothing illegal as evolution was scientific fact.
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question 4 (1 point) what happens when the plasma concentration of calc…
Question 4: Calcitonin gets released from parafollicular c cells of the thyroid gland. Question 5: True
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john scopes, the defendant in the 1925 scopes trial, was an attorney a …
D. a teacher
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multiple choice 1 point replace each phrase in bold with a single word …
C. Brusque
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what is false about the cell in the picture below? it contains a nucleu…
Its granules are considered to be basophilic.
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an immediate effect of the scopes trial on american society was that th…
the trial was the first in a series of major media events
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which statement is not a part of the unified cell theory? all living th…
all tissues are made of cells
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drag and drop to match the organelle with its correct description. prod…
1. Nucleolus 2. Nucleus 3. Rough Endoplasmic Reticulum 4. Smooth Endoplasmic Reticulum 5. Golgi apparatus 6. Lysosomes 7. Plant cell vacuoles 8. Animal cell vacuoles
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multiple choice question the marketspace is defined as o an electronic …
an electronic exchange environment with computer technologies and digitized offerings.
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match the types of protein fibers to their function. intermediate filam…
Intermediate filaments - Bear tension and anchor the nucleus and other organelles in place. Microtubules - Motor proteins that move vesicles through the cell and pull replicated c…
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drag and drop the cell organelles to the type of cell to which they bel…
Centrosome: Animal Cell Cell wall: Plant Cell Lysosomes: Animal Cell Mitochondria: Plant Cell and Animal Cell Large central vacuole: Plant Cell Peroxisomes: Plant Cell and Animal …
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which of the following statements is true? pollution of water bodies on…
Pollution of water bodies affects animals, plants, and the ecosystem.
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drag and drop to match the organelle with its correct description. prod…
1. Produce ATP for the cell - Mitochondria 2. Found only in plant cells. Involved in photosynthesis - Chloroplasts 3. Contains catalase, which converts toxic hydrogen peroxide int…
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question 2 points 1 which of the following is true about an ecosystem? …
C. Biotic and the abiotic factors of an environment interact with each other.
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although debate over international affairs would continue, world war i …
C. 1918
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question 13 3 tries left natural selection is a concept from: ○ evoluti…
evolutionary psychology.
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question 12 3 tries left behavioral genetics focuses on which of the fo…
the extent to which heredity accounts for individual differences in behavior and thinking
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francesca is studying behavior genetics with mice that have been bred t…
strain
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suppose we assume that brown eyes are dominant, and blue eyes are reces…
B. brown
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question 9 3 tries left a chromosome is to a necklace cord like the gen…
A. beads
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3 tries left alexs elderly father has been having problems with memory …
B. acetylcholine
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8. how did observation and experimentation change the way people unders…
8. Observation and experimentation shifted the understanding of truth from relying solely on traditional authority and dogma to basing it on empirical evidence. Through systematic…
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question 3 3 tries left the area comprising one neurons axon terminal, …
synapse.
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question 1 3 tries left what makes neurons different from other cells? …
They have dendrites and axons.
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now its time to share your own opinions. pretend you are a journalist i…
agree with Lodge that the United States is more powerful when it acts alone
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osmosis is the diffusion of water from an area of high concentration to…
1. a. out of the cell b. shrink 2. a. in both directions b. stay the same 3. a. into the cell b. burst
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in psychology, the idea that adaptive traits that increase survival cha…
B. evolutionary psychology.
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odessa is 37 and is pregnant with her third child. her obstetrician tel…
B. amniocentesis
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drag and drop the terms to classify the characteristics of cilia and fl…
Cilia: Short hair - like projections, Line passageways or move single - celled organisms such as Paramecium Flagella: Long hair - like structures, Move in a whip - like motion, Us…
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the human genome, or sum total of all the genes necessary to build a hu…
C. 20,000 to 25,000 genes
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what effect does lodge suggest us membership in the league of nations m…
Membership might weaken the United States' vigor and moral force.
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read about henry cabot lodges opposition to the league of nations and a…
look after its own affairs
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3 tries left a recessive gene can control the appearance of a certain t…
B. paired with another recessive gene
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what was the most important reason why wilsons opponents argued against…
The League of Nations might have forced the United States to become an international peacekeeper.
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match the various types of cell connections to their correct examples. …
Plasmodesmata - Cortex cells of a plant root Tight junctions - Between epithelial cells of the small intestine Desmosomes - Holds skin cell together to form waterproof layer Gap j…
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match the various types of cell connections to their correct descriptio…
Gap junction - Channel between two adjacent animal cells that allows ions, nutrients, and low molecular weight substances to pass between cells, enabling the cells to communicate.…
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read one of wilsons \fourteen points.\ think about the challenges facin…
The Allies were already making secret alliances and plans.
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fill in the blank question a plant is said to be if all of its spores a…
homosporous
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multiple choice question an important difference that distinguishes the…
the lack of vascular tissue
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select all structures produced by mosses. leaves sporangia roots rhizoi…
A. Leaves B. Sporangia D. Rhizoids
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question 3 which of the following would most likely occur if cattle los…
D. Cattle would no longer be able to use cellulose as a primary
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fill in the blank question in this moss life cycle, the male gametophyt…
(No specific answer can be given as the image details are not clear enough to identify the exact letters for male and female gametophytes. More information about the labeled parts…
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multiple select question select all that apply which of the following d…
B. Vascular tissue C. Multicellular sporophytes E. Diploid embryos
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select all that apply select all true statements about hornworts. their…
- Their gametophytes are photosynthetic. - Of all bryophytes, their sporophytes are most similar to those of vascular plants. - Their sporophytes have stomata. - They are able to …
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fill in the blank question in mosses, male gametangia are called while …
antheridia, archegonia
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select all ways in which moss leaflike structures differ from true leav…
They lack a midrib. They lack veins. They lack stomata. Most of their surface is one cell layer thick.
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select all features of mosses. they produce small, leaflike photosynthe…
They produce small, leaflike photosynthetic structures. They use rhizoids to anchor themselves.
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fill in the blank question (diploid or haploid) in this moss life cycle…
A is diploid; C is haploid
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c. how many water molecules would be needed to break this amylose down …
3
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select all that apply select all features of liverworts. sexual reprodu…
B. They may be leafy or lobed. C. Gametophytes have rhizoids.
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figure 1. formation of a carbohydrate polymer monomer 1 oh + monomer 2 …
C. A water molecule is removed to form a covalent bond between two monomers.
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multiple select question select all that apply which of the following a…
- Conspicuous sporophytes and microscopic gametophytes - Diploid embryos - Multicellular haploid and diploid generations - The ability to photosynthesize
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antheridia and archegonia produce which of the following, respectively?…
B. Sperm and eggs
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multiple choice question conspicuous, photosynthetic gametophytes are c…
D. bryophytes
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multiple choice question an important difference that distinguishes the…
the lack of vascular tissue
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select all structures produced by mosses. rhizoids leaves roots sporang…
Rhizoids, Leaves, Sporangia
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organisms that exhibit a haplodiplontic life cycle have ________. multi…
multicellular haploid and diploid stages
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liverworts reproduce through _______. o asexual processes only o sexual…
sexual and asexual means
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multiple choice question the closest living descendants of the first la…
bryophytes
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multiple select question select all that apply which of the following d…
Multicellular sporophytes, Vascular tissue, Diploid embryos, Multicellular gametophytes
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multiple choice question bryophytes have small, green ______ that are s…
A. gametophytes
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multiple choice question in mosses and ferns, the haploid (gametophyte)…
A. a larger portion of the life cycle than it does in seed plants
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in this part of the text, another word for a \international\ would be a…
B. world
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fill in the blank question in this plant life cycle, the generation is …
sporophyte; gametophyte
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fill in the blank question a typical land plant has a(n) blank life cyc…
alternation - of - generations