Biology Questions

What is the main difference between the role of NADH and NADPH carriers ONADH provides energy that drives ATP synthase in animals and NADPH drives ATP synthase in plants NADH provides electrons to the Citric Acid cycle in animals and NADPH does the same but in plants ONADH provides electrons to the electron transport chain for ATP formation and NADPH provides electrons to the Calvin Cycle for carbon fixation NADH is an electron carrier in plants only and drives the Calvin cycle while NADPH donates electrons to the Citric Acid cycle in animals

Jed is studying the investment of ATP in Cellular Respiration Which stage of Cellular respiration would his research likely be focusing on O The reduction of FAD to FADH2 in the Citric Acid Cycle O The oxidation of NADH to NAD in the electron transport chain O The phosphorylation of glucose in glycolysis O The reduction of NAD to NADH in Glycolysis

Jill is studying the process of oxidative phosphorylation in human cells in th lab Which of the following processes would she be most interested in O The role of mitochondrial protein electron carriers O Lactic acid formation in muscle O The formation of Acetyl CoA and the citric acid cycle Energetics associated with Glycolic

Which structure is involved in the projection level of motor control O cerebral basal nuclei O cerebellum Ospinal cord O primary motor cortex Submit Request Answer

List 2 examples of nonrenewable resources you use regularly

What is habitat fragmentation and how does it occur

Identify pollutants that contaminate water ecosystems

Describe how pollution can cause acid rain and how acid rain affects the ecosystems of surrounding areas

Explain how a buildup of carbon emissions in the atmosphere could increase global warming

Would a buffalo or a mountain lion be more affected by biomagnification Explain

Give two reasons why preserving biodiversity is important to humans

How might global warming affect seasonal temperature changes

Examine the image How has this habitat changed after this dam was built What effects could this have for the animals living in and around the river Lower Sesan Il dam Lower Sesan Il dam

hat does an indicator species tell us about the health of an ecosystem

Are humans likely affected by biomagnification If so which foods might be dangerous

Identify 5 pollutants that accumulate in the air

What is the greenhouse effect and how does it keep Earth warm

How are particulates harmful to the biosphere

escribe three ways people can decrease their ecological footprint to help manage Earth s resources

List 2 examples of renewable resources you use regularly

Give an example of how technology has influenced human population growth

What is an ecological footprint and how is it related to an area of land

List factors that affect the size of an ecological footprint

Describe how a renewable resource could become a nonrenewable resource

What is the difference between renewable and nonrenewable resources

Summarize what is meant by Earth s carrying capacity

Do you think Earth has a limit to the number of humans it can sustain

What type of impact do you think the growing human population might have on Earth s natural resources

Which cell type is highlighted O simple squamous cells Omacula densa cells O umbrella cells goblet cells Submit Request Answer Pea

Which bone is highlighted clavicle O scapula humerus Osternum Model courtesy of Denoyer Geppert www denoyer com Pearson

Which two bones are united by the highlighted structure Oscapula and clavicle O sternum and humerus Oscapula and humerus bumerus and clavicle Copyright by OMRO 2010 www

Which of the following best describes the location of the ganglia for the parasympathetic division of the autonomic nervous system Inside the central nervous system Closer to the central nervous system than the effector Exactly halfway between the central nervous system and the effector Closer to the effector than the central nervous system Inside the effector

Which of the following best describes the neuron contacting the effector for the parasympathetic division of the autonomic nervous system The neurons have the smallest diameter axons are lightly myelinated and transmit impulses at 150 meter per second The neurons have the smallest diameter axons are not myelinated and transmit impulses at 1 meter per second The neurons have medium diameter axons are lightly myelinated and transmit impulses at 15 meters per second O The neurons have medium diameter axons are heavily myelinated and transmit impulses at 1 meters per second The neurons have the largest diameter axons are not myelinated and transmit impulses at 15 meters per second The neurons have the largest diameter axons are heavily myelinated and transmit impulses at 150 meters per second

How do geological changes provide evidence for evolution OA They show that Earth s features have remained fairly constant for millions of years OB They show that large forces are required to cause any observable change OC They accumulate over a very long time which supports the idea that living things have changed in the same way D They occur very suddenly which supports the idea that life evolyes quickly

What structure is labeled as 3 2 3 1 5 4 Visceral sensory gray mater Funiculus Spinal nerve Somatic sensory gray mater Dorsal root ganglion O Visceral motor gray mater O Ventral root Dura mater O O Somatic motor gray mater Dorsal root 6 7 8 9 10

Which two conditions increase the chances that a species will be driven to extinction A A low mutation rate B Gradual changes in the environment C A high mutation rate D Drastic changes in the environment

What is the best function description of the cranial nerve labeled as F DA 1 C J A H Movement of the eyes Movement of the head and neck Sense of vision O Facial expression and taste O Hearing and balance Sense of smell Parasympathetic innervation below the level of the neck and taste Sensation on the face Movement of the tongue and taste E it of the tongue F L B G K

The image shows the geologic time scale from the Hadean eon to the Phanerozoic eon Eons Hadean Archoan Eoms of the Geologic Time Scale Proterozoic Ediacaran period 541 Millions of years ago 4 600 4 000 3 200 2500 1 600 1 000 Phanerozoic 300 2 6 Which two statements are supported by the information in the geologic time scale A The Ediacaran period supported the development of the first animals around 800 million years ago B The Phanerozoic eon experienced rapid diversification of life C Many fossils originated from the Archean era D The Proterozoic era saw little change in species biodiversity

What are two examples of human caused environmental changes that could affect species in an area A The formation of a new island due to volcanic eruptions B The removal of a mountaintop due to mining activities C Habitat fragmentation due to the construction of a new road D The flooding of an area due to heavy rainfall

Which sentence best describes vertebrate species in the early stages of embryologic development A They usually do not have a tail OB Their features are very different OC They all begin as the same kind of organism OD Their features are similar

A human arm a horse s foreleg and a bat s wing all have the s arrangement of bones Which term best describes these struc A Analogous B Adaptive OC Vestigial D Homologous

Which sentence describes the endosymbiotic theory A All eukaryotic organelles formed through infolding of the cell membrane B Organelles arose when a temperature change caused protobionts to form around organic compounds C All of the organelles in a eukaryote evolved from a single prokaryote D A prokaryote engulfed another prokaryote and kept its features

Why are hierarchical levels used in classification systems OA To keep organisms organized based on when they evolved B To show evolutionary relationships among organisms C To show when an organism developed a common ancesto D To keep organisms grouped based on unique traits

Which action might produce biochemical evidence that supports the theory o evolution A Studying DNA sequences from related organisms B Comparing fossils with modern organisms C Analyzing proteins from organisms of different species D Examining structures during an organism s early stages of development

What would you expect to be true of organisms that have a recent common ancestor A They would have very different genetic sequences OB There would be no similarities in their amino acid sequences for certain proteins OC They would have very similar genetic sequences D There would be little similarity in their amino acid sequences for certain proteins

Listen What structure is labeled as 2 4 5 Soma 4 6 Node of Ranvier myelin sheath gap Axon Axon Hillock Dendrite p Axon terminal Nissl body Chromatophilic substance Schwann cell 1 2 3 8 Gim

Select two statements that describe how fossils provide evidence that species have evolved over time A Fossilized organisms do not share common traits with modern organisms B Fossils show organisms that once lived on Earth but are now extinct C Fossils can be used to predict when a species will evolve D Fossilized remains can be found in rocks that are millions of years old

Patterns in biogeography have revealed that species that share more recen common ancestors also tend to have which two features A They are separated by a greater geographical distance B They are biologically more similar to each other C They are geographically closer to each other D They are biologically more different from each other

Humans and gorillas have one amino acid difference in their hemoglobin sequences What does this say about the evolutionary relationship of these two species O A Gorillas recently evolved from humans B They have no common ancestors C They probably have a recent common ancestor D They are probably the same species

Two neighboring types of coral release gametes at the same time but the gametes are not compatible and cannot produce embryos Which term best describes this situation A Reproductive isolation B Behavioral isolation C Temporal isolation D Geographic isolation