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WorksheetsTerm Test Review 20211st Term
Total questions: 92
Worksheet time: 1hrs 7mins
The most basic unit of a living organism is...
A box
A cell
A cellular component
A battery
The variable that a scientist changes
Independent
Dependent
Control
Constant
Which of the following is an example of an organism maintaining homeostasis??
A plant using the openings on its leaves, stomata, to exchange gases and evaporate water to allow more water to get into the plant
A Runner perspiring while running on a hot summer day
The human body releasing insulin to keep blood sugar steady
The maintain ace of a body temperature around 98.6 degrees F
All of the above
An act of using one or more of your senses to gather information and take note of what occurs is
Qualitative data
Quantitative data
an Inference
an Observation
An ecosystem comprising the ENTIRE EARTH and the organisms that inhabit it.
Biosphere
Biome
Abiotic
Ecoregion
Polymer's split apart to form ________, by __________.
monomers, hydrolysis
monomers, dehydration synthesis
amino acids, hydrolysis
amino acids, dehydration synthesis
Which 2 factors can affect the rate of enzyme activity?
Light intensity
Temperature
pH
Oxygen concentration
A water strider can skate along the top of a pond because:
covalent bonds result in water cohesion
hydrogen bonds result in water cohesion (surface tension)
water striders have adapted to take advantage of water forming ionic bonds
low surface tension of water
What is the term for a feature that allows an organism to survive better in its environemtn?
variation
adaptation
homologous structure
vestigial structure
From fossils Darwin realized...
that the fossils were radically different from species living today
that the fossils were similar to species living today
that the fossils were created by the Devil to trick him
that the fossils were smaller than species living today.
Why could Darwin not initially reveal his great idea that species naturally change over time?
It was obvious and everyone knew it
He did not have enough evidence
He was not confident
He would be challenging society and the accepted idea that God created everything
Wallace observed ______, which made him realize species change over time.
finches
butterflies
turtles
fish
True or False: Darwin and Wallace came up with the same idea that species change over time independently on their own.
True
False
Darwin and Wallace both gathered a large number of observations and facts on what they based their theories. Which of the following types of evidence was NOT part of the evidence they gathered?
fossil evidence
anatomical evidence (anatomy)
geographical distribution
genetic evidence (DNA)
Darker skin is more prevalent among indigenous people living in areas with high amounts of UV radiation. Nina Jablonski proposed a hypothesis to explain the selective pressure for darker skin in these environments. On which of the following observations did she base this hypothesis?
Human populations around the globe have different versions of the MC1R gene.
In general, people with more darkly pigmented skin have less folate, a nutrient important for human reproduction, circulating through their blood.
The larger amount of eumelanin in darkly pigmented skin protects circulating folate from being destroyed by UV radiation.
The melanin in darkly pigmented skin protects DNA from UV radiation, which can cause skin cancer.
Rickets, a disease that affects bone development in children, is caused by vitamin D deficiency. Based on the risk factors discussed in the film, which of the following groups of people has the highest risk of rickets if they do not take vitamin D supplements? Assume that each group spends a lot of time outdoors.
adults with dark skin who live close to the equator
children with light skin who live close to the equator
adults with light skin who live far south of the equator
children with dark skin who live far north of the equator
Which answer is more appropriate?
Traits are good or bad.
Traits can be harmful or hurtful depending on the environment.
Traits are always helpful or hurtful, regardless of the environment.
Traits are helpful or bad.
Charles Darwin hypothesized that the finches on the Galapagos Islands _____.
shared a common classification with finches in North America.
shared a common ancestor with other finches from the Galapagos Islands.
did not share any common ancestor at all.
shared a common ancestor with finches on the mainland of South America.
A scientist thinks that flatworms swim faster if they are in salt water. So he drops them in salt water and finds that they do swim very fast. He concludes that salt water makes flatworms swim fast.
An experiment is conducted to test the hypothesis that a certain type of houseplant grows best when exposed to exactly four hours of sunlight per day. Which is the dependent variable?
hours of sunlight
growth of plant
type of soil
amount of water
Experiments measure how changing the __________variable affects the __________ variable.
controlled, other
dependent, independent
primary, secondary
independent, dependent
A claim is ______________________________.
a kind of shellfish often used in chowder.
a fact.
a statement or conclusion that answers the original question or problem.
an opinion based on prior knowledge.
What two monosaccharides (simple sugars) are formed when lactase enzyme hydrolyzes lactose?
Glucose and fructose
Glucose and galactose
Galactose and maltose
Glucose and maltose
Which discovery supports the hypothesis that evolution of the lactase persistence trait was driven by the use of milk in pastoralist cultures?
The lactase gene is present both in humans and in domesticated animals
Ancient pots used to hold milk are about the same age as the lactase persistence mutations.
Most human cultures today drink milk and most people worldwide are lactase persistent.
Scientists have identified different mutations that cause lactase persistence.
Why would measuring blood glucose levels in an individual, 20 to 30 minutes after they drink a liter of milk, indicate whether they are able to digest lactose
When lactose is digested by lactase in the small intestine, different cells in the body start releasing glucose into the bloodstream
When lactose is digested by lactase, the glucose that is produced enters the bloodstream from the small intestine
When lactose enters the large intestine, glucose is digested by bacteria and then enters the bloodstream
The fats and proteins in milk are digested by the body, causing glucose levels in the blood to increase.
Why could milk have provided strong favorable selection for lactase persistence?
People who can digest milk can obtain calories during times when little other food was available
Being lactase persistent guarantees that an individual will survive and reproduce
Ancient humans could eat McFlurrys and Dairy Queen
Lactose intolerant individuals were probably kicked out of their tribes because they got gas from drinking milk
The majority of people worldwide are lactose intolerant
True
False
Which are the nutrients digested in the small intestine?
Carbohydrates and proteins
Proteins
Carbohydrates, proteins and lipids
Lipids and proteins
Lipids
What is the function of the villi?
To increase the absorption surface
To digest the last nutrients
To form feces
To comb the small intestine
Which two reasons are why viruses are not considered living?
they cannot reproduce on their own
they are not composed of cells
they have no DNA
they do not adapt and evolve
Select all that are the products of cellular respiration (right side of the reaction)
Glucose
Water
Oxygen
Carbon Dioxide
Biosynthesis is a process where
Your body breaks down the food you eat and reuses the monomers to build new molecules
Your bonds break down
Your food to form into a new human being
You store large amounts of fat
