Biology Questions

insulin Blank 1 After 10 min in the bowl with insulin the gold fish went into a coma Ta regain consciousness and control of its muscles the fish is transferred to a dish containing

The hormone insulin tends to blood glucose levels increase decrease decrease decrease decrease increase increase increase blood glucose levels while glucagon

E Blank 1 The above picture is a dissected sheep brain What is the name of the section labeled A

ES Blank 1 The above picture is a dissected sheep brain What is the name of the section labeled C

Blank 1 After 10 min in the bowl with insulin the gold fish went into a coma To regain consciousness and control of its muscles the fish is transferred to a dish containing Question 15 1 point The primary structural and functional unit of all nervous systems is the gland spine neuron A brain

Match the following terms to their respective functions in the nervous system Sends messages to muscles or glands Coordinate the flow of messages from sensory to motor cells Receive data from sense organs 1 Motor neuron 2 Sensory neuron 3 Interneurons

MHC Class I is expressed on expressed on whila Ta cells recognize while MHC Clas TH cells recognize

antigen presented on MHC Class I or II 2 What are proteostomes

and transplanted them in mouse 3 which had been thymectomized and lethally irradiated no T cell Use experiments Zinkernagel took bone marrow from mouse 1 and a thymi producing T cells from mouse 1 those T cells will mat ure in thymus and be exposed to self antigens He them challenged the reconstituted mouse with LCM virus and removed spleen cells These splee incubated with LCMV infected target cells cells expressing MHC plus antigenic components of the different MHC haplotypes and the lysis of the target cells was monitored The results of 2 such e using H 2 strain C57BL 6 mouse 1 mice and H 2 mouse 2 strain BALB C mice are shown in the Remember that the TCR has to recognize the MHC antigen complex of the haplotype in which it wa recognize A B Experiment Bone marrow and thymus donor Mouse 1 H 2 x Mouse 2 H 22 Mouse 1 H 22 Mouse 2 H 22 Thymectomized x irradiated recipient Mouse 1 x Mouse 2 H 2bxd Mouse 1 x Mouse 2 H 2bxd Lysis of LCN H 2d All of the cells in these mice suiral antigen

a At what stage do you find gene rearrangement b At what stage do you find expression of IgM c At what stage do you find expression of IgD d At what stage do you find class switching

D E 1 C Blank 1 This picture is a posterior view of the mammalian heart Name the vessel labeled B

H G A B C Blank 1 This picture is an anterior view of the mammalian heart Longitudinal

Blank 1 These cells are from a slide of

O Arterial pressure when ventricles are relaxed Arterial pressure when all chambers of the heart are relaxed Arterial pressure when all chambers of the heart are contracted Arterial pressure when ventricles are contracted Question 4 1 point Why did the vertebrate heart evolve from a smaller two chambered pump to a larger more robust four chambered one To be able to handle pumping blood through larger animal bodies The four chambered heart increases the flow rate of blood through the body in order to meet the higher oxygen demand of endothermic animals The four chambered heart separates the blood circulation into one circuit for vital organs and one circuit for nonvital structures More derived vertebrate groups have a more complex and robust four chambered heart because they have more complex nervous systems

Identify the tunic Z in the blood vessel shown below Lumen Z X Y

Inflatable cuff sphygmomanometer stethoscope respirator spirometer known as a Pressure gauge Air control valve Bulb

H 2 target cells fakat 51 Cr release no lysis H 2k LCM virus Spleen cells containing T cells H 2 LCM infected target cells MHC Haplotype 51 Cr igure H 25 LCM infected target cells Differen haplotype 451 Cr release 51 Cr release no lysis lysis Shows that CTLs can only kill cells infected with

An aqueous solution has a measured pH 2 00 What is the H in this solution Pay attention to significant figures Select one O a 0 0100 b 0 01 c 0 010 d 0 0

Two plants that are heterozygous for flower color and produce red flowers are crossed Some of their offspring produce white flowers Which claim is best supported by this information A New combinations of alleles can form due to lateral gene transfers during conjugation B Inheritable genetic variations can arise due to mistakes made during replication C New combinations of alleles are inherited from two different parents due to fertilization D Inheritable genetic variations can result from mutations caused by environmental factors such as chemicals

Parents grounding a child for bad behavior is a type of conditioning as the punishment isn t related to the crime A proximal B operant C classical D optimal

Behavior in response to working with others is as the interaction provides an evolutionary advantage A habituation B socialization C classical conditioning D proximal conditioning

A The cause of a behavior is a result of your genetics or your nature optimal B proximate C ultimate

The scales of the Chondrichthyes are described as being tooth like The scales are described as a spiracles b nostrils c placoid d claspers e cloaca

A fish that automatically moves towards an electrical current is exhibiting an innate A affective response B desire C sensory function D taxis

a Chondrichthyes Ob Mammalia c Crocodilia d Amphibian O e Testudina Question 5 1 point Which of the following is NOT a characteristic of protostomes Blastopore developing into the mouth Spiral cleavage Enterocoelous mesoderm development

Eating excess sugar triggers feedback in which the pancreas releases insulin to assimilate sugar into the cells A aseptic B negative C positive D neutral

The screw like shapes in the shark s small intestine are called O a papillary b pyloric c spiral d pancreatic valves

All of the following are classes of the phylum Echinodermata except O a Crinoidea b Tunicata c Holothuroidea d Echinoidea O e Asteroidea

A A B C The letter A is pointing to the a hind wing b spiracle c thorax D E

This squid is 1 5 Ob a male 4 2 9 a neither male nor female both male and female 3 10 2 7 8 4 1

8 a 8 10 1 Which number s in the image above represents the foot 5

To which of the following phyla does the grasshopper belong a Echinodermata Ob None of these c Arthropoda d Mollusca

2 2 Ob 13 7 O c 12 7 1 8 3 10 4 The number identifying the telson is O a 4 8 9 5 9 10 11 6 12 13 11 12

Which of the following are used to identify the sex of insects like the grasshopper O Ob Trochanters a Spiracles c Malpighian tubes d Ovipositors Question 11 1 point Which of the following is NOT a subphylum of the Arthropoda Chelicerata Uniramia Gastropoda

Nervous system signals are electrochemical responses as hormones called are released between the synapses of neurons A thyroxine B neurotransmitters C vasodilators D vasoconstrictors

To which of the following phyla does the squid belong a Mollusca O b Echinodermata Oc Arthropoda d None of these

A The letter C is pointing to the a femur b ovipositor C

Which of the following classes belong to the phylum Arthropoda a Insecta Ob Bivalvia c Cephalopoda d Stelleroidea e Polyplacophora

The term referring to the eyespots is O a valvular Ob ocelli Oc siphons d operculum

The above image is that of a group of a bivalves b gastropods c crabs

Which of the following is NOT a part of the leg of the grasshopper a Coxa b Tarsus c Trochanter d Femur e Tympanum

Which of the following is NOT a pathogen that your immune system protects you from A UV light B bacterial C fungal D viral

A round worm is actually a which includes pseudocoelomate organisms A nematode B poriferan C vertebrate D platyhelminthes

Question 10 of 10 How is the regulation of gene expression in eukaryotes different from methods used by prokaryotes A Eukaryotes do not use RNA polymerase for transcription B Promoter regions affect groups of genes called operons in eukaryotes C Histones make some genes unavailable for transcription in eukaryotes D Eukaryotes do not rely on noncoding sections of DNA for regulation SUBMIT

4 Listen What is the function description of the structure labeled as 1 2 A hole that a cell resides in Resists mechanical forces Recoils the tissue after it has been stretched Synthesizes and secretes collagen elastic and reticular fibers

John Endler hypothesized that female guppies prefer to mate with the most brightly colored males the females themselves do not have a lot of color In pools with lots of guppy predators however males remain fairly drab in color very little color Which of the following experiments would help support his hypothesis about female choice move brightly colored guppies into the pools with predators and see if they survive remove all females in a pool with or without predators and see if the color of the male guppies changes move females from a pool with brightly colored males to the pool with drab males and predators and see if the colors of the males change with time O remove the predators from a pool with drab males and see if the colors of the males change over time place tiny color blocking glasses on all female guppies and see which males they choose note guppies have no external ears so fitting them with glasses is very 16

of the following factors would NOT contribute to allopatric speciation A population becomes geographically isolated from the parent population Different mutations begin to distinguish the gene pools of the separated populations The separated population is small and genetic drift occurs Gene flow between the two populations is extensive The isolated population is exposed to different selection pressures than the ancestral population Question 16 1 point Listen frogs helonging to the same genus occasionally mate but the What is the mechanism for keeping the two frog

Where is this type of tissue found located 2 4 1 Center of epiphyses of long bones marrow cavity of diaphysis of long bones diploe of flat bones Epiglottis auricle of external ear Lines the ureters urinary bladder O Covers the ends of long bones forms costal cartilage Tendons most ligaments Trachea upper respiratory tract 3 Under skin around kidneys Outside region of osseous tissue Under epithelia Most of the digestive tract gallbladder

Organisms that possess homologous structures probably evolved from the same ancestor by chance had similar mutations in the past have increased genetic diversity are headed for extinction are not related Question 10 1 point Listen Why does female preference for certain males to breed with cause evolutionary onulation honge to compete with the other

the largest versions of the organisms organisms with more genetic diversity organisms with very few mutations organisms that have value to humans the most fit forms of the organisms Question 8 1 point selection is to produce Listen Why are vestigial structures in organisms such as the appendix in humans and reduced hind limb bones in some whales considered evidence for evolution because they show that organisms can change based on need use they demonstrates the law of use and disuse nower of mutations