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WorksheetsQuizizz #20 (2021-2022) Living Environment
Total questions: 23
Worksheet time: 29mins
When a person's level of physical activity changes, the circulatory system supplies body cells with amounts of nutrients and oxygen that are appropriate to sustain the new level of activity. This statement best illustrates the concept of
homeostasis
pinocytosis
transport
metabolism
Which graphed line best represents this data?
What is the length of the worm?
9 mm
90 mm
10.6 mm
106 cm
What is digestion?
Breaking down food into molecules usable by cells
Taking in food or drink
Maintaining a stable internal environment
Taking in or releasing of oxygen or carbon dioxide
The percent of DNA that species A has in common with species B, C, D, and E are shown in the graph below. Which statement is a valid conclusion that can be drawn from this graph?
Species A is closely related to species B, but is not related to species E.
Fewer mutations have occurred in species B and C than in species A.
Species A and E have the greatest similarity in protein structure.
Environment influences the rate of evolution.
How do processes 1 and 2 affect the amount of genetic information provided by a parent to its offspring?
Processes 1 & 2 doubles the amount of genetic information during the production of egg and sperm.
Processes 1 & 2 reduce the amount of genetic information by half during the production of egg and sperm.
Which cell structure is correctly paired with its primary function?
ribosome–protein synthesis
mitochondrion–movement
vacuole–cell division
nucleus–storage of nutrients
Which statement best describes a human chromosome?
It is made of amino acid subunits that form genes.
It contains genes that may code for the production of enzymes.
It is normally passed to the next generation through a placenta.
It varies in function from one generation to the next.
Four different segments of a DNA molecule are represented. There is an error in the DNA molecule in
segment 1, only
segment 3, only
segments 2 and 3
segments 2 and 4
The diagram below represents part of a human reproductive system. One of the functions of this part of the system is to
supply essential nutrients to the offspring in the form of milk
provide nutritional support for the embryo
provide a structure that allows the mixing of maternal and fetal blood
produce specialized proteins used in the production and release of sperm
Which substance is an inorganic molecule?
starch
DNA
water
fat
The enzyme amylase will affect the breakdown of carbohydrates, but it will not affect the breakdown of proteins. The ability of an enzyme molecule to interact with specific molecules is most directly determined by the
shapes of the molecules involved
number of molecules involved
sequence of bases present in ATP
amount of glucose present in the cell
Sweating is a process that helps cool the body during strenuous exercise. This is an example of
recycling of gases
cellular respiration
gene malfunction
a feedback mechanism
A student observes some cells with a compound light microscope as shown in view A. What did the student most likely do to obtain view B?
applied a biological stain to the slide
applied distilled water to the slide
used electrophoresis
used a higher magnification
In autotrophic nutrition...
organisms eat food
organisms make their own food through photosynthesis
organisms create food through respiration
organisms create food through synthesis
