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WorksheetsBiolab
Total questions: 148
Worksheet time: 1hrs 14mins
What is a key morphological difference between fish and amphibians?
Amphibians have strong muscular and skeletal systems to support their body on land.
x
Many, though not all, mollusks have a shell. What secretes the shell?
The mantle
x
Which arthropod subgroup includes animals with six legs?
Insects
x
On which continent would you have seen the very earliest members of Homo sapiens?
Africa
x
Which of the following group is most closely related to mammals?
Reptiles
x
Which is most closely related to the hagfishes?
Lampreys
x
Which of the following features are used to identify chordates?
All of the above are features used to identify chordates
x
Which of the following is not a primate?
All are primates
x
All mammals ________.
have mammary glands and hair
x
Which one of the following is a defining characteristic of animals but not of plants?
Animals, but not plants, are hetrotrophs
x
Most animals fall into one of how many phyla?
9
x
How many of the animal phyla include single-celled animals?
0
x
What is the function of the lateral line system?
To detect movement in the surrounding water
x
Which of the following best describes sponges?
They are asymmetrical, lack tissues, and do not move.
x
Which of the following is human's closest living relative?
Chimpanzees
x
How do bony fish regulate buoyancy?
With an air-filled swim bladder
x
Which arthropod subgroup includes the spiders?
Arachnids
x
Which of the following groups is not a type of mammals?
All of the above are types of mammals
x
What do sponges and cnidarians have in common?
None of the above are characteristics
x
Which worm phylum lacks body segmentation?
Both flatworms and roundworms
x
A key characteristic of echinoderms is ________.
their endoskeleton
x
What defines radial symmetry?
Any plane of symmetry passing through the center of the organism splits it into equal halves
x
Humans belong to the phylum ________.
chordates
x
Although exceptions do exist, which is a distinctively amphibian trait?
All of these are distinctive amphibian traits
x
Which type of worm lacks a complete digestive tract?
Flatworms
x
What are the key characteristics of arthropods?
Segmented bodies, tough exoskeleton, and jointed appendages
x
The first animals evolved from ________.
protists
x
Which of the following is a key feature of primates?
They have a brain that is large in relation to their body
x
Serial repetition of segments is a defining characteristic of which worm phylum?
Annelids
x
Gastropods are the most numerous group of mollusks and include the ________.
snails and slugs
x
Which group of fishes evolved first (in other words, is most ancient)?
Jawless fishes
x
Being a heterotroph means ________.
obtaining your food by eating other organisms
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Which of the following best describes cnidarians?
They have radical symmetry, tissues, and stinging cells
x
The way the pancreas regulates glucose levels in the blood stream follows ________.
a negative feedback mechanism
x
What is the main function of the respiratory system?
Mainly the exchange of oxygen and carbon dioxide gases
x
________ refers to the function of a body part, while ________ refers to the structure of a body part.
Physiology; anatomy
x
What would happen if the sensory neurons in your hand could not transmit a signal?
You could move your fingers but you could not feel something touch them
x
Connective tissue is the most variable of the tissue types. Which one of the following is not categorized as connective tissue?
Muscle
x
Which of the following is a type of essential nutrient?
All of the above are types of essential nutrients
x
Which brain structure controls the secretion of hormones in the rest of the body?
The hypothalamus
x
What is the role of the epithelium?
Helps protect the body from the external enviornment
x
Which of the following statements about digestion is true?
Digestion can be both mechanical and chemical, and it occurs both in the mouth and in the stomach
x
There are many organs and glands of the endocrine system, but which one is the master controller?
The hypothalamus
x
What is the primary function of the sinoatrial node?
To initiate the contraction of the heart
x
Which of the following describe the integumentary system?
Skin, nails, hair
x
Veins carry ________.
blood low in oxygen and high in carbon dioxide
x
What are gonads?
Organs that produce gametes
x
Select the correct sequence for the pathway of blood through the heart.
Body-> Right atrium-> Right ventricle-> Lungs-> Left atrium-> Left ventricle-> Body
x
The alimentary canal is ________.
the series of digestive organs from mouth to anus
x
Tissues are made up of ________ that work together to perform a function.
Similar cells
x
What is the name of the tubes that run from the kidneys to the bladder?
Ureters NOT Urethras
x
Maintaining a steady-state internal environment, despite a changing external environment, is called ________.
homeostasis
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The cardiovascular system consists of ________.
All of theses are parts if the cardiovascular system
x
A person with carbohydrates A and B on the surface of their red blood cells will have which of the following blood types?
Blood type AB, as A and B are present
x
The pulmonary circuit specifically circulates blood ________.
from the heart to the lungs
x
Identify the primary role of the lymphatic system.
To produce and store large numbers of white blood cells
x
Epithelial tissues covers ________.
All of the above are covered by epithelial tissues
x
What are the four stages of food processing, ordered from beginning to end?
Ingestion, digestion, absorption, elimination
x
The urinary system ________.
all of the above are roles of the urinary system
x
What is the part of the kidney where urine is formed?
The nephron
x
Your thigh bone, the largest bone in your body, is called the ________.
femur
x
How is BMI calculated?
By using a person's height and weight
x
What happens during diastole?
The heart muscles relax, allowing blood to flow into all chambers of the heart
x
In spermatogenesis, ________.
haploid sperms are produced
x
Match the correct structure with its correct tissue.
Neurons make up the nervous tissue
x
Organs are made up of ________ to perform a specific function.
different types of tissues
x
The urethra ________.
is a tube that conveys both urine and semen
x
Abiotic factors are ________.
nonliving components of an ecosystem
x
There are little birds that spend a great deal of time on the back of a rhinoceros and eat the blood-sucking ticks out of the rhino's ears. The rhino greatly benefits from the relationship, since it cannot remove the ticks itself. The tick-rhino relationship is an example of ________.
parasitism
x
All ecosystems need energy. What is the originating source for most of the energy that powers ecosystems on this planet?
Solar energy
x
The Asian kudzu bug (Megacopta cribaria) arrived in Atlanta in 2009 and is quickly spreading across the South. In addition to eating kudzu, it also eats soybeans and can decimate entire crops. The kudzu bug is a type of ________ species.
invasive
x
Of the biomes listed, which is best adapted to seasonal fires?
Chaparral
x
At what level is biodiversity often studied and measured?
All of the above
x
To best assess the species diversity in one area, one should measure ________.
both the number of species and their relative abundance in the area
x
All of the following are abiotic factors within an ecosystem except ________.
All of the above are abiotic factors
x
What type of species, if removed from the community, could lead to the collapse of the entire community?
Keystone species
x
What can a human population's age pyramid tell you about current and future needs?
All of the above
x
A wolf eats a rabbit that eats grass. The grass is a ________.
Producer
x
An age pyramid with a broad base that quickly slopes up to a narrow top would be indicative of ________.
a developing nation
x
All living things need carbon. How does most carbon enter the living portion of an ecosystem?
Atmospheric CO2 taken in by photosynthesis
x
How does an increase in atmospheric greenhouse gases increase global temperatures?
By preventing some of the heat from escaping the planet's surface
x
The distribution of terrestrial biomes on Earth depends mostly on ________.
both temperature and rainfall
x
Which principle states that no two species competing for the exact same resources can coexist?
Competitive exclusion principle
x
All living things need nitrogen. How does nitrogen enter the living portion of an ecosystem?
Atmospheric N2 taken in by soil bacteria
x
Plants rely on pollinators to reproduce, while pollinators rely on plants to provide nutrients. This is an example of ________.
mutualism
x
Identify the biotic factor of an ecosystem among the following options.
Amount of moss available to the consumers
x
What is a population's carrying capacity?
Its maximum population size to remain stable
x
Aquatic biomes are defined primarily by ________.
their salinity
x
Ecology is best defined as the study of ________.
the interactions between living organisms with eachother and their environments
x
Environmentalism is ________.
a philosophical and social movement concerned with preserving the environment
x
Which is the dominant greenhouse gas leading to global warming of the atmosphere?
CO2
x
Which of the following scenarios describe an ecological succession?
All of the above are examples of ecological succession
x
The buildup of soil on bare rock by the decomposition of early colonizers is characteristic of ________ succession.
Primary
x
A sudden natural catastrophe resulting in massive die-offs would be categorized as a density-________ limiting factor.
independent
x
A dispersion pattern refers to ________.
the spacing of organism throughout a habitat
x
An invasive species is a species that ________.
spreads rapidly outside its native range and causes damage
x
Primary consumers eat ________.
producers
x
A wolf eats a rabbit that eats grass. The wolf is a(n) ________.
consumer
x
What category describes a species that, while not presently at risk of extinction, could likely be at risk of extinction in the near future?
a threatened species
x
A community in ecology is defined as ________.
populations from multiple species interacting in the same place
x
What is the main difference between amphibians and reptiles?
Amphibians are tied to water for reproduction, while reptiles have amniotic eggs that can survive on dry land
x
Which group of fishes evolved most recently (in other words, is the youngest)?
Bony fishes
x
Compared to mammals and reptiles, what characteristic prevents amphibians from surviving far from water?
Their eggs do not have an amnion to prevent them from drying out
x
Which of the following best describes mollusks?
They are bilaterally symmetrical and a soft body sometimes covered with a shell
x
Some restaurants serve seafood platters that contain oysters, mussels, and clams. Such platters therefore consist of ________.
mollusks
x
Which chordate trait evolved first?
Skull and backbone
x
Which subgroup of mammals raises their young in pouches?
Marsupials
x
What happened during the Cambrian explosion?
There was rapid diversification of animal forms
x
Sponges are mostly found in ________.
Marine ecosystems
x
What is the function of a fish's operculum?
To protects the gills
x
Flatworms are most closely related to the ________.
annelids
x
What are lymphocytes?
White blood cells
x
What is the role of the epiglottis?
Prevents food from entering the windpipe
x
What is mechanical digestion?
The use of physical actions to break down food
x
What are hormones?
They are chemicals transported in the blood that affect target cells throughout the body
x
The main role of the large intestine is to ________.
absorb water
x
What is the main role of red blood cells?
Carry oxygen
x
Where does the ovule meet the sperm that fertilizes it?
In the oviduct
x
What is the main role of kidneys?
To filter blood and remove toxins from it
x
The main role of the liver is to ________.
produce bile, which helps the process of digestion
x
Which are the thinnest blood vessels?
Capillaries
x
Which brain structure is the largest and most complex?
The cerebrum
x
What is the difference between vitamins and minerals?
Vitamins are organic nutrients, while minerals are inorganic nutrients
x
What is chemical digestion?
The breakdown of food by enzymes
x
What is the role of the villi?
To absorb small nutrient molecules from the digestive tract
x
Although freshwater biomes cover less than 1% of the Earth's surface, they are important because ________.
All of the above are reasons why freshwater biomes are important
x
What type of survivorship curves do humans typically display?
A curve that is initially quite flat, until it decreases steeply at old age.
x
What is the difference between a community and an ecosystem?
A community includes interacting populations without their surrounding environment, while an ecosystem includes the surrounding environment
x
What are the main causes of biodiversity loss?
Habitat destruction, overharvesting, invasive species, pollution, and climate change
x
An ecosystem is a collection of all the ________ in a given area.
living and nonliving things
x
Cheetahs are specialized hunters that stalk Thompson gazelles. This is an example of a ________ relationship.
predator-prey
x
A population in ecology is defined as ________.
a group of organisms, all from the same species
x
Terrestrial biomes are defined in a large part by ________.
the dominant plants that live there
x
Phytoplankton is an example of a ________.
producer
x
Why is an estuary considered an intermediate biome?
It is the transition zone between freshwater and saltwater biomes
x
What is an ecological footprint?
The estimate of land and water required to sustain one person
x
A biome characterized by warm, fairly dry climate that primarily contains grasses with scattered, isolated trees is a ________.
savanna
x
Which growth model would you expect to see in a stable population?
Logistic
x
The use of multiple forms of pest control including biological, chemical, and the planting of pest-resistant crops is a strategy commonly called ________.
integrated pest management
x
All vertebrates have ________.
a skull and a backbone
x
What is the main difference between monotremes and eutherians?
Monotremes lay eggs, while eutherians give birth to live young.
x
What is the radula's function in mollusks?
It cuts and scrapes up food.
x
What is an amniotic egg?
Both B and C are correct
x
Which of the following phyla is the most diverse and numerous of all animal phyla?
The arthropods
x
What is the main role of T cells in the immune response?
To stimulate the production of immune cells
x
Response to a stimulus, such that the effect of the stimulus is counteracted, is called a ________ feedback.
negative
x
What is the correct hierarchy of organization, from biggest to smallest, in your body?
Organism, organ system, organ, tissue, cell
x
Bacteria populations grow at a really rapid pace, with their whole populations doubling within hours. What type of growth models do bacteria follow?
Exponential
x
