Biology Questions

refers to species interaction that impacts the fitness of each organism involved A Commensalism C Symbiosis B Parasitism D Mutualism

According to the plus system which of the following is a 0 symbiotic relationship A cohabitism C parasitism B commensalism D mutualism

is a symbiotic relationship characterized by the plus system as A Cohabitism C Commensalism B Parasitism D Mutualism

Species that live together and impact each other s fitness are said to be in a n relationship A symbiotic C obligate anaerobic B mutualistic D parasitic

In an aquatic biome is not much of a limiting factor compared to a terrestrial biome A sunlight C temperature B nutrients D oxygen

A mangroves C ginkos high salinity B cypress D oaks

A major limiting factor for a biome is water because trees require an abundant supply A tundra C grassland B forest D tropical

Measuring percent dissolved oxygen DO in an aquatic environment is a way to follow energy production as oxygen is a byproduct of produces sugar energy which A cellular respiration B photo synthesis C chemi sythesis

Measuring percent dissolved oxygen DO using a chemical indicator like in an aquatic environment is a way to follow energy production A bromo thymol blue B calcium biphosphate C sodium thiosulfate

Considering that NPP GPP respiration if in a hypothetical system containing a brussel sprout and a caterpillar larvae NPP will be negative if the larvae A produces more than is consumed by the brussel sprout B consumes more than is produced by the brussel sprout dies

If experimenting on factors that govern energy capture allocation storage and transfer between producers and consumers in a terrestrial ecosystem one could measure the change in biomass of a growing plant The challenge is one must measure the weight A wet B dry molecular

Which of the following is NOT a major component that scientists classify earth into A atomosphere C biosphere B ecosphere D geosphere

An abiotic factor affecting life on eart would be long term patterns of temperature and precipitation in an are called A storm patterns C global warming B climate D weather

The study of organisms interacting with each other and their environment is called A ethology C ecology B endocrinology D chondrichthyology

In a biological hierarchy if you study a community and then begin to measure abiotic factors you are studying a n A population C organism B biosphere Decrystem

A typical pioneer species is a n that can breakdown rock to form an area conducive to more diverse forms of life A hearty autotroph C keystone chemotroph B hearty heterotroph D obligate anaerobe

The plastic molten layer that the tectonic plates float upon is called the A asthenosphere C lithosphere B crust D mantle

Primary succession is a form of ecological succession in which life takes hold in a n

Photosynthesis and respiration pl important role in the cycle as ca dioxide is produced and consum A water C carbon B rock D life

Question 10 of 25 How does the structure of DNA determine the expression of genes A The nucleotides that make up DNA break down into individual bases that recombine to form proteins that express traits B The shape of each strand of DNA determines the structure of a protein whose function expresses a trait C The sequences of nucleotides in DNA determine the structures of proteins whose functions express traits OD The two strands that make up each molecule of DNA unwind releasing stored proteins that express traits SUBMIT

4 Listen What is a lifespan O the oldest age to which a species is known to survive O typical pattern of falling death rates and birth rates due to improved living conditions that usually accompanies economic development O factors that increase people s desire to have babies the average age that a newborn infant can expect to attain in any given society

Measuring the DO in an aquatic environment can be accomplished using a titration assay Drops of the titrant are counted until a color change is seen and the data is plotted on a to determine the DO B C

46 43 50 40 300 37 51 51 41 38 44 45 47 48 42 1 39 10 18297 Percent of population Prereproductive Reproductive 10 ecological footprint reproduction diagram 03 40 71 75 04 65 84 40 61 55 46 50 41 45 36 40 31 35 26 30 21 25 16 20 11 15 6 10 0 5 L 10 0 Percent of population Postreproductive The image is an example of which of the following Oage class histogram Olife expectancy diagram 10 M 85 RE HO 71 74 61 65 154 85 48 50 41 45 218 40 23 36 26 30 21 28 15 20 11 15 6 30 0 5 10 0 Percent of population

What is life expectancy O factors that increase people s desire to have babies O the oldest age to which a species is known to survive O typical pattern of falling death rates and birth rates due to improved living conditions that usually accompanies economic development the average age that a newborn infant can expect to attain in any given societ

sten Select the characteristics that are exhibited by K selected most individuals die early in life most individuals die late in life slow to maturity produce few young produce large numbers of young mature quickly

Which organisms are considered predators omnivores Odetritivores Oscavengers carnivores herbivores decomposers

Name the type of hemolysis in the A section A B C

Figure 1 1 1 kbp Hindill 0 15 kbp Hindi amp 0 25 kbp EcoRI EcoRI 1 5 kbp In Figure 1 after digestion with the appropriate restriction enzyme what is the smallest piece containing the entire ampicillin resistance amp g O a 0 17 kbp O b 0 25 kbp O c 1 08 kbp O d 1 50 kbp O e 3 00 kbp

Identify the bacterial shape a coccus O b bacillus O c spiral O d sarcina

Instead of using land plants a more accura way to study energy dynamics in an ecosystem is to measure in a pond dissolved 0 B gasesous 0 C dissolvec CO

D palactosidase pene 02 Ampicillin resialance pene amp Plasmid Rostriction ako Forelon DNA Rostriction ekos Flocombinont plasmid Bactorium Colonios with forelgr DNA In Figure 3 the bacteria transformed with the vector only without the gene of interest and plated on media containing ampicillin and X gal v O a form blue ampicillin resistant colonies O b form blue ampicillin sensitive colonies O c form white ampicillin resistant colonies O d form white ampicillin sensitive colonies Oe not grow

Identify the cellular arrangement O a streptococcus O b staphylococcus O c tetrad O d streptobacillus O e sarcina A

The percent dissolved oxygen DO na aquatic environment is greater th a aquatic environment

Name this type of bacteria O a diplobacillus O b vibrio O c sarcina O d staphylococcus

1 12 6 Decompostion Photosynthesis Predation Herbivory What type of system is shown in the image O closed system Oopen system all answers are correct none of the answers are correct

What are the categories of organic mole lipids nucleic acids proteins carbohydrates sulfur carbon water

Next question In a test of the effectiveness of garlic for lowering cholesterol 43 subjects were treated with garlic in a processed tablet form Cholesterol levels were measured before and after the treatment The changes before after in their levels of LDL cholesterol in mg dL have a mean of 3 4 and a standard deviation of 17 9 Construct a 90 confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment What does the confidence interval suggest about the effectiveness of garlic in reducing LDL cholesterol Click here to view a t distribution table Click here to view page 1 of the standard normal distribution table Click here to view page 2 of the standard normal distribution table What is the confidence interval estimate of the population mean u mg dL mg dL Round to two decimal places as needed What does the confidence interval suggest about the effectiveness of the treatment OA The confidence interval limits contain 0 suggesting that the garlic treatment did not affect the LDL cholesterol levels OB The confidence interval limits contain 0 suggesting that the garlic treatment did affect the LDL cholesterol levels OC The confidence interval limits do not contain 0 suggesting that the garlic treatment did affect the LDL cholesterol levels D The confidence interval limits do not contain 0 suggesting that the garlic treatment did not affect the LDL cholesterol levels

Which enzyme would cut this segment of DNA GCATGGATCCCAATGC CGTACCTAGGGTTACG Oa Enzyme BamHI O b Enzyme EcoRI c Enzyme Haelll O d Enzyme HindIll Recognition site GIGATCC CCTAG G Recognition site GLAATTC CTTAA G Recognition site GG CC CC GG Recognition site AJAGCTT TTCGATA

4 Listen From the list choose any that is are potential energy Check Select 3 correct answer s 0 heat concentration gradients water behind a dam chemical bonds light

FRA Car scal MANA DNA strand being synthesized cDNA of gono without Introns In Figure 2 the enzyme in step 1 is O a DNA polymerase O b DNA ligase Oc RNA polymerase d reverse transcriptase e spliceosome Cytoplasm

Identify the cellular arrangement O a staphylococcus O b streptobacillus Oc streptococcus O d sarcina

What subjects are involved in the topic of Omarine resources conservation of forests and nature preserves hunger and food biodiversity loss clean air energy resources population growth

hich could you see with the unaided eye nt a a colony Ob a sarcina

Use the following anatomical terminology to describe how the following organs relate anatomically to two other organs Medial lateral proximal distal superficial deep anterior posterior dorsal ventral superior inferior 1 The stomach is 2 The heart is 3 The diaphragm is 4 The kidneys are to the to the to the to the and and and and to the to the to the to the Use the most accurate anatomical term to describe the relationship between these body regions

Where on an EKG tracing do you evaluate ST segment changes

S2 heart sounds dub represent the closing of the

What is the relationship between the mitochondrial disorder ketosis and Ketotic hypoglycemia in genetic diseases

193688 quizzes 1487370 take Question 16 Identify the structure at the arrow 29 60 1 pts

Which of the following is a correct way to express a measurement that has two significant digits and is in correct scientific notation format O O 21 0x105 210 105 0 21 105 O2 1 105

A 100ml dsDNA solution prepared via 1 20 dilution was taken for spectrometry analysis The A260 and A320 values obtained were 0 4210 and 0 1210 respectively The total DNA yield of the solution in micrograms would be 30000 O400 40000 300