| Cells | Plants | Evolution | Ecology | Organisms/ Viruses |
|---|---|---|---|---|
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b) Mitochondrion
Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use?
a) Endoplacmic reticulum b) Mitochondrion c) Golgi apparatus d) Chloroplast |
d) Embryo sac
Fertilization of the egg takes place inside the
a) Anther b) Stigma c) Pollen tube d) Embryo sac |
b) Genetic drift
A change in the gene pool due to pure chance is
a) Natural selection b) Genetic drift c) Rapid gene flow d) Assortive mating |
d) to attract female birds
The males of a bird species do a "dance" and "sing a song" each spring. What is the main purpose of these behaviors?
a) to scare off young birds b) to imprint young birds c) to clean their feathers d) to attract female birds |
c) tendon
Which of the following connects a muscle to a bone?
a) cartilage b) ligament c) tendon d) disc |
|
c) Anaphase
Mitosis occurs in 5 steps: prophase, metaphase, anaphase, telophase, cytokinesis
In this stage of mitosis, the sister chromatids separate into individual chromosomes and are pulled apart.
a) Prophase b) Metaphase c) Anaphase d) Telophase |
b) ovary
A fruit develops from the walls of the
a) style b) ovary c) cotyledons d) suspensor |
d) Development of dikaryons
Which of the following is not part of asexual reproduction in fungi?
a) Formation of asexual spores b) New individuals growing from hyphal fragments c) Binary fission d) Development of dikaryons |
a) competiton
Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?
a) competition b) mutualism c) parasitism d) predator-prey |
b) oviduct
Fertilization takes place in the:
a) follicle b) oviduct c) uterus d) vagina |
|
b) ribosomes
Prokaryotes and eukaryotes both have:
a) chloroplast b) ribosomes c) nucleus d) golgi apparatus |
c) High carbon dioxide concentrations
Which of the following will NOT cause the stomata to open?
a) Internal clock b) Light c) High carbon dioxide concentrations d) Drought |
a) divergence
A group of mice become separated by the formation of a river. Over time, the northern mice became smaller and whiter, while the southern mice became larger and browner. This demonstrates:
a) divergence b) homology c) gigantification d) industrial melanism |
c) individuals in a species
A population is a group of
a) species in a community b) communities in an ecosystem c) individuals in a species d) individuals in a family |
d) cerebellum
The part of the hindbrain that is responsible for hand-eye coordination is the:
a) pons b) hippocampus c) medulla oblongata d) cerebellum |
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d) Combination of oxygen atoms and high-energy electrons
The oxygen released during photosynthesis comes from the
a) Splitting of water molecules b) Splitting of carbon dioxide molecules c) Formation of ATP d) Combination of oxygen atoms and high-energy electrons |
a) sugar source to sugar sink
Phloem always flows from a
a) sugar source to sugar sink b) sugar sink to sugar source c) Leaf to a root d) leaf to the xylem to the phloem |
b) reproductive isolation and genetic divergence
The two key factors responsible for speciation among populations are:
a) mutation and heterozygote disadvantage b) reproductive isolation and genetic divergence c) postzygotic isolation and morphological change d) mutation and genetic drift |
d) acid rain
Which environment factor would cause the greatest decrease in the numbers of species of plants and animals living in some lakes in the United States?
a) increase in dissolved oxygen levels b) global warming c) ozone destruction d) acid rain |
c) transports K+ into the neuron and Na+ out
The sodium-potassium pump
a) transports Na+ and K+ out of the neuron b) transports Na+ into the neuron and K+ out c) transports K+ into the neuron and Na+ out d) transports Na+ and K+ into the neuron |
|
d) Vesicles
The Golgi apparatus functions within eukaryotic cells by packaging proteins into membranes. What are the names of these membranes?
a) Ribosomes b) Lysosomes c) Nuclei d) Vesicles |
c) endodermal cells
Uptake of mineral ions into the xylem is controlled by
a) epidermal cells b) cortex cells c) endodermal cells d) xylem cells |
c) 50%
Mary's father has hemophilia, a X-linked recessive trait, but her husband does not. What is the chance her son will have the disease?
a) 0% b) 25% c) 50% d) 100% |
a) Global climate change
Which environmental concern is most associated with burning fossil fuels?
a) Global climate change b) Pollution of ocean waters c) Ozone layer destruction d) Decrease in levels of atmospheric carbon dioxide |
a) joins the bacterial chromosome
In the lysogenic cycle, the DNA of a bacteriophage:
a) joins the bacterial chromosome b) attaches to the inner surface of the host membrane c) goes directly to the host's ribosomes for translation d) is immediately degraded when it enters the host |
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