HONG KONG EXAMINATIONS AND ASSESSMENT AUTHORITY
HONG KONG DIPLOMA OF SECONDARY EDUCATION EXAMINATION
PHYSICS PAPER 1
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deferens is often enlarged to form the seminal vesicle, which
stores the sperm before they are discharged into the female. The
seminal vesicles have glandular linings that secrete nutrients for
nourishment and maintenance of the sperm. The ejaculatory duc
(element 17), completing the process of digestion. The uric acid is
formed using hemolymph waste
leads to the outside. A portion of the vas
openings on the sides of the abdomen called spiracles.
The respiratory system is an important factor that limits th
1. Jump up^ "QS World University
Rankings Overall for 2014".
Retrieved 13 November 2014.
2. Jump up^ Hipwell, Deirdre (23
September 2007). "The Sunday Times
Good University Guide 2007 Profile for
London School of Economics". The
Sunday Times. London. Retr
Colombia is ranked third in the world in the Happy Planet Index.
Main article: Languages of Colombia
See also: Colombian Spanish
More than 99.2% of Colombians speak Spanish, also called Castilian; 65 Amerindian languages,
two Creole languages, t
Social insects, such as termites, ants and many bees and wasps,
are the most familiar species of eusocial animal. They live
together in large well-organized colonies that may be so tightly
integrated and genetically similar that the colonies of som
male and female reproductive organs.
Insect life-histories show adaptations to withstand cold and dry
conditions. Some temperate
This Southern Hawker dragonfly molts its exoskeleton several
times during its life as a nymph; shown is the final molt to beco
1. Department of Conservation and
2. and navigation in the moth, Heliothis
zea". Journal of Insect Physiology. 15 (6):
3. Jump up^ Spangler, Hayward G. (1988).
"Moth hearing, defense, and
communication". Annual Rev
1. from the original (PDF) on 10 July 2007.
2. Jump up^ Schowalter, Timothy Duane (
3. ". Annual Review of Entomology. 23:
4. Jump up^ Ritland, D. B.; L. P. Brower
(1991). "The viceroy butterfly is not a
1. Jump up^ "Tree of Life Web Project.
Version 1 January 1995 (temporary) of
Arthropoda". Tree of Life Web Project.
2. of the Insects. Cambridge University
3. Jump up^ Garwood, Russell J.; Sutton,
Mark D. (2010). "X-ray micro-tom
, flies), damage structures (termites), or destroy agricultural goods
(locusts, weevils). Many entomologistsare involved in various
forms of pest control, as in research for companies to
produce insecticides, but increasingly rely on methods ofbiological
While on a very smooth level transcontinental plane flight, your coffee
cup sits motionless on your tray. Are there forces acting on the cup? If so, how do
they differ from the forces that would be acting on th
SANSAET, ROMEO JR. S.
SEPTEMBER 22, 2016
ASSIGNMENT NO. 17 FINAL PRACTICAL ASSIGNMENT
freezing, is the tierra helada, a zone of permanent snow and ice.
Ice cap climate in theNevado del Ruiz
Alpine tundra climate in theSumapaz Paramo
Oceanic climate in Tota Lake
Mediterranean climate inBoyac Department
Cold desert climate nearVilla de
in rate. xouthparts. Of all the insect orders, Orthoptera displays
the most features found in other insects, including
Spiracles are located in the pleural area. Variation of this ground
plan includes the fusion of terga or terga and sterna to form
help control insect populations.
Although pest insects attract the most attention, many insects are
beneficial to the environment and to humans. Some insects,
like wasps,bees, butterflies and ants, pollinate flowering plants.
Pollination is a mutualistic
1. the original on 19 May 2011. Retrieved 5
2. Jump up^ "London 1948". International
3. al on 19 May 2011. Retrieved 5
4. Jump up^ "RFU apply for two additional
concerts at Twickenham Stadium in
2007" (Press release). T
years unless species descriptions increase
, whereas the wasp Vespa crabro has only two in the thorax and
three in the abdomen. Some insects, like the house fly Musca
domestica, have all the body ganglia fused into a single large
The majority of insects hatch from eggs. The fertilization and
development takes place inside the egg, enclosed by a shell
(chorion) that consists of maternal tissue. In contrast to eggs of
other arthropods, most insect eggs are drought resistant. This is
nocturnal moths can perceive theultrasonic emissions of bats,
which helps them avoid predation.
the palatable tiger moth really does defend against attacking big
brown bats using ultrasonic clicks that jam bat sonar.
Very low sounds are also produced
1. Committee. Archived from the original on
19 May 2011. Retrieved 5
2. Jump up^ "England Introduction".
Federation. Archived from the original on
19 May 2011. Retrieved 3
3. Jump up^ "London Defeats Doha t
cause problems for farmers, but
ms are well conserved among eukaryotes, understanding basic
cellular processes like DNA replication or transcription in fruit flies
can help to understand those processes in other eukaryotes,
including humans. The geno
1. the original on 8 June 2008. Retrieved 7
2. Jump up^ "Residents". Transport for
London. Archived from the original on 19
May 2011. Retrieved 7 June 2008.
3. Jump up^ Santos, Georgina; Button,
Kenneth; Noll, Roger G. "London
Insects that feed on blood have special sensory structures that
can detect infrared emissions, and use them to home in on their
Some insects display a rudimentary sense of numbers, such as
the solitary wasps that prey upon a single species. The
move very quickly, they need to be video recorded at
secretions that reduce surface tension making it possible for them
to move on the surface of water by Marangoni propulsion (also
known by the German term Entspannungsschwimmen).
region insects are capable of activity during winter, while some
others migrate to a warmer climate or go into a state of torpor.
Still other insects have evolved mechanisms ofdiapause that
allow eggs or pupae to survive these conditions.
ventral shields or a conical tube. Some insects bear a sclerite in
the pleural area called a laterotergite. Ventral sclerites are
sometimes called laterosternites. During the embryonic stage of
many insects and the postembryonic stage of primitive insects
the sutures and sclerites. Here, the vertex, or the apex (dorsal
region), is situated between the compound eyes for insects with
a hypognathous and opisthognathous head. In prognathous
insects, the vertex is not found between the compound eyes, but
1. Jump up^ "Pollstarrpro.com" (PDF).
2. Jump up^ "The best music festivals in
London". Time Out London. Retrieved 27
3. ^ Jump up to:a b London's top 40 artists.
BBC. 6 April 2006. ISBN 978-0-89820135-2. Retrieved9 September 2008.
4. Jump u
respectively. For instance, some
Care of young
The eusocial insects build nest, guard eggs, and provide food for
offspring full-time (see Eusociality). Most insects, however, lead
short lives as adults, and rarely interact with one another except
1. "Sentience and pain in
invertebrates" (PDF). Norwegian
Scientific Committee for Food Safety.
3. ^ Jump up to:a b c Richard W. Merritt,
Kenneth W. Cummins, and Martin B.
Berg (editors) (2007). An Introduction to
the Aquatic Insects of North America