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2024 UCONN BIOLOGY 1108 EXAM 3 WITH CORRECT ANSWERS
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2024 UCONN BIOLOGY 1108 EXAM 3 WITH CORRECT ANSWERS
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2024 UCONN BIOLOGY 1108EXAM 3 WITH CORRECT
ANSWERS
Parthenogenesis - CORRECT ANSWERS-A type of asexual reproduction in
which females produce eggs that are not fertilized by males but divide by
mitosis and develop into new individuals.
What two basic processes describe Sexual reproduction - CORRECT
ANSWERS-Meiosis and fertilization
Advantages of asexual reproduction - CORRECT ANSWERS-Exponential
population growth, everyone can reproduce
Organogenesis - CORRECT ANSWERS-the transformation of the three germ
layers into all the organ systems of the body.
Sex Determination - CORRECT ANSWERS-achieved by absence or presence
of Y Chromosome
2nd Trimesters - CORRECT ANSWERS-Characterized by continued
development and growth of the fetus. Fetal movements are usually first felt
in this stage.
3rd Trimester - CORRECT ANSWERS-Rapid growth, fetus doubles in size
during the last two months.
Hox genes - CORRECT ANSWERS-regulate development of major features of
body form in animals. Similar to DNA sequences and relative positions on
chromosomes
Parazoans - CORRECT ANSWERS-The most basal metazoans, consisting of
the Subkingdoms Porifera and Placozoa. Have no gut
Metazoans - CORRECT ANSWERS-Two subkingdoms, parazoans and
eumetazoa
Alpine - CORRECT ANSWERS-Similar to Tundra, Lacks permafrost,
, Budding - CORRECT ANSWERS-Form of asexual reproduction in which a
bud/protrusion forms on an organism and eventually breaks off to form a
new organism that is smaller than its parent
Fragmentation - CORRECT ANSWERS-A type of asexual reproduction in which
one organism is broken into pieces, each of which develops into a new
individual
External Fertilization - CORRECT ANSWERS-Egg and sperm released directly
into the water. Low chances, but countered by producing large numbers of
gametes, or other strategies
Internal Fertilization - CORRECT ANSWERS-Fertilization takes place inside the
body of the female. Considered an adaption for land animals
R-Strategists - CORRECT ANSWERS-organisms that produce large numbers of
offspring without a lot of parental investment. Mainly found in unstable
changing environments.
K-Strategists - CORRECT ANSWERS-organisms that produce few offspring but
put in a lot of parental investment. Mainly found in stable environments
where there is lots of competition.
Amnion - CORRECT ANSWERS-a membrane surrounding a fluid filled cavity
that allows the embryo to develop in a watery environment. Huge impact on
animals abilities to reproduce w/o water.
Allantois - CORRECT ANSWERS-Encloses a space within the egg where
metabolic waste collects
Chorion - CORRECT ANSWERS-surrounds the entire embryo along with its
yolk and allantoic sac. Limits water loss and allows has exchange within
environment.
Cleavage - CORRECT ANSWERS-First set of mitotic division after fertilization
of zygote. Single large egg divides into many smaller cells.
Morula - CORRECT ANSWERS-A solid ball of cells that results from cleavage
Blastula - CORRECT ANSWERS-Further cell divisions after the morula result in
the blastula, a fluid filled ball of cells. Marks the beginning of implantation
into the uterine lining.
Pregnancy - CORRECT ANSWERS-The carrying of one or more embryos in the
uterus
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