For the chemical formula of C6H12O6, the 2:1 ratio of H and O (2 H for every 1 O) helps classify this as a
carbohydrate
100
When a phosphate group is removed from ATP
energy is released as heat
100
Genetic variation can cause individuals to possess features that increase their survival.
This has been famously titled, "....
Darwin’s theory of evolution by natural selection
100
A gamete is as a mature germ cell that unites with another and forms a zygote. When are gametes produced?
Produced during meiosis.
100
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
metaphase
200
Scientists use the term theory to describe
an explanation supported by much evidence
200
The organisms in an ecosystem depend on each other for their energy. Which of the following might restrict the number of organisms an ecosystem can support?
one or more nutrients are in short supply
200
The process by which organisms maintain a relatively constant internal balance is called
homeostasis
200
The correct mRNA sequence of the following DNA sequence is
DNA sequence: ACTTCGGTA
TGUUGCCUT
200
A population of small-billed birds would decrease if long-term climate change influenced soft seeds to harden. The population lowers because
small-billed birds generally eat soft seeds
300
If an animal cell is submerged in distilled water it will burst because osmosis causes
water to move into the cell
300
The cellular membrane
regulates movement of materials in and out of the cell
300
What has both biotic and abiotic features?
viruses
300
The concept of genetic variation is essential for
evolution to occur
300
The emission of carbon dioxide from oil-burning power plants is directly driven by human interference and directly impacts the
carbon cycle
400
Choosing between a liver cell, ribosome, bacteria or lysosome...
which of the following is the smallest living thing?
bacteria
400
Herbivores and carnivores do not compete directly for food sources.
In what way are herbivores and carnivores alike?
they both obtain energy by consuming other organisms
400
One advantage of sexual reproduction over asexual reproduction is that sexual reproduction
increases genetic diversity
400
The genetic code is shared by all living species on Earth and is the reason scientists say we share a common ancestor with
simple single celled organisms to complex organisms
400
Most ATP is created by electrons moving down the electron transport chain during
cellular respiration
500
For a properly run scientific experiment, the control is necessary and used for comparison with the results of the
variable group
500
A population describes all individuals of a single species in a given area.
This is different from a community which describes all individuals
of all species in a given area
500
Nondisjunction is what occurs when chromosome pairs fail to separate during an evolutionarily important process called
meiosis
500
If an individual has a Trisomy 21 karyotype, they have
Down Syndrome
500
The production of protein can be described by DNA to mRNA to Ribosomes and is also known as the