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WorksheetsCheckpoint 2 Review
Total questions: 34
Worksheet time: 34mins
Stone flounder are fish that have the ability to hide from predators and prey by blending in with the gravel and
sand at the bottom of the ocean.
This ability is known as —
natural selection
imitation
mimcry
camouflage
according to cell theory, all cells...
come from other cells
have a nucleus
carry out meiosis
contain chloroplasts
which of the following best defines heredity?
the passage of genetic instructions from one generation to the next generation
the study of the genetic instruction that are passed from parent to offspring
the specific sequence of DNA and RNA that code for specific traits
the process of creating more organisms of a species
which of the following cell components are most involved in determining an organism's traits?
chromosomes
cytoplasm
mitochonrion
chloroplast
which sequence is missing from the levels of organization chart?
ecosystem-community-population-?-?-?-tissues
organism-organ system-organ
organ system-organ- organism
organ system-organism- organs
organism- organs- organ system
an organism inherits its genetic instructions from the-
organism's offspring
organism's parents
organism's mating partner
organism's prey
which cell components are responsible for the inherited traits that a pea plant posses?
chromosomes, mitochondria, vacuoles
DNA, nucleus, chromosomes
genes, cytoplasm, cell membrane
DNA, proteins, chloroplasts
The roots growing downward and the leaves growing up are the plants response to?
gravity / geotropism
osmosis
water / hydrotropism
sunlight / phototropism
What are the purposes of gills?
staying cool
hide from predators
breathe / get oxygen
to help fish sleep
Plants have different signals for attracting pollinators. It is not uncommon for the same plant to have more than
one signal.
Which of the following would NOT be a way in which plants attract pollinators?
Presence of barbs
Specific texture or pattern
Strong scents
Bright colors
I am eukaryotic
I am an autotroph
I am multicellular
What am I?
Plant
Animal
Eubacteria
Unicorn
What system is this?
Respiratory System
Circulatory System
What kind of change is baking a cake?
I am eukaryotic
I reproduce sexually
I am multicellular
I am heterotrophic
What kingdom do I belong to?
Plantae
Animalia
Protista
Fungi
Riding a bicycle requires additional energy from leg muscles. Which of the following conditions may result from this activity, and which response helps restore the body to its normal condition?
Increased carbon dioxide in the blood can be removed by breathing faster
Decreased oxygen can be replaced by digesting an apple.
Increased sugars in the blood stream can be diluted by drinking water.
Increased salt wastes can be removed by the heart pumping faster.
Some plants have small holes called stomata on the underside of leaves. Stomata are opened to draw water up to the leaves and allow carbon dioxide in so that that process of photosynthesis can occur. During the process, some water is lost through the open stomata.
Based on this information, what stimulus is most likely to cause the stomata to close?
Water volume increasing in the soil
Water volume decreasing in the soil
Carbon dioxide concentration increasing in the atmosphere
Carbon dioxide concentration decreasing in the atmosphere
Researchers are investigating processes that happen during digestion. Which answer choice describes only a
physical change during digestion?
Hydrochloric acid in the stomach breaks down proteins.
Chewing in the mouth breaks food into small pieces.
Enzymes in saliva start the digestion of starches before food is swallowed.
Bacteria in the intestines convert dietary fiber into fats.
Which of the following could be a valid explanation for the differences in mouthparts among insects?
The insects each have different climates in which they live, requiring a different type of feeding method.
The mouthparts have modifications that are adapted to the insect's method of feeding.
The mouthparts vary depending on the insect's wing-to-body-length ratio.
The mouthparts are varied so that there is not competition within a single species of insects.
pharynx is an organ that is found in the back of the throat of humans. Most of the time it is open to allow air
to flow in and out of the lungs. When a person swallows, muscles will push the pharynx closed.
What is the function of the pharynx?
Prevent food and water from entering the lungs
Prevent air from entering the stomach
Separate oxygen from carbon dioxide before entering the lungs
Absorb nutrients from food before it reaches the stomach
