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i want helpModerator: BioTeam
7 posts • Page 1 of 1
i want helphi iam egyptian i have aproblem with aqustion in english subject iam in the faculty of science
the qus is please any body can help me Read the following text then match the sentences below with their corresponding numbers that fit their meanings . each suitable sentence must be used once . structural variations All organisms, whether plant or animal, must reproduce, grow, breathe, eat, excrete , and be able to respond to their environments; special areas of animal's bodies are often organized to accomplish each of these tasks . (.......1......) . Differences in anatomy have arisen because , among other reasons , of the emergence of life from the water onto land , which has meant that various features have had to be modified to accommodate the exigencies of terrestrial life . (.......2........) . It occurs in all higher groups . even if only in the embryo stage .(.......3.........). The hydrostatic skeleton is asimple , fluid-filled cell and is found in animals such as amebas . In higher invertebrates such as coelenterates , nematodes , annelids , and echinoderms , water held inside the body is shifted by muscles to bring about a change in shape or position of the animal . (........4.......) . Muscles , which enable these animals to move , are attached to the inside of the skeleton. the main problem with this structural arrangement is that the exoskeleton is heavy and eventually becomes too heavy for the internal muscles to lift . (.....5....) . in contrast , vertebrates have an endoskeleton . which is an internal set of bony supporting structures . (........6......) . Each bone of the skeleton has muscles fixed to its surface toward the end of the bones . (.............7.......) . The joints of the vertebrate body are enclosed in a synovial capsule and are lubricated by synovial fluid . (........8........) . (........9........) . The first increases in size until it divides into two smaller individuals . Mammals , too , grow to an adult size at which time they mature and become reproductively active , but they have special growth centers near the tips of their long bones where the cell division that enables growth takes palce . (......10......) . * A.(..............) But most invertebrates have an exoskeleton that is segmented and bears jointed legs . * B.(..............) But one of the most important developments in the pattern of anatomical organization is the occurrence of segmentation , first seen in the earthwarm . * C.(..............) Consedering two extremes , amebas and mammals. * D.(..............) In addition , their skull bones are separated by cartilage which allows the skull to grow - it stops the bones meet . * E.(..............) The backbone is strengthened by girdles to which limbs are attached . * F.(..............) The basic structure of an animal also determines how it will grow , and the growth patterns of animals differ greatly. * G.(..............) These muscles work in antagonistic pairs , one contracting while the other relaxes . * H.(..............) These specialized cells may vray from animal to animal , but the chemical processes involved in the activity are usually the same . * I.(..............) Three basic support systems exist in the animal kingdom : a water-based , or hydrostatic sdeleton ; a hard outer case ,or exoskeleton ; and a hard internal support system , or endoskeleton . * J.(..............) This may be the reason for the small size of most invertebrates with such astructure . Last edited by duro0re on Sun Jun 01, 2008 5:10 am, edited 1 time in total.
I want the Nobel prize. The difference is I'm working to get it.
"I have no intention of stopping anytime soon. I want to understand the universe and answer the big questions, that is what keeps me going" - Stephen Hawking
Re: i want helpmy Specialization is Natural sciences not biology and english is my second language and this is my first year in the faculty .
this qus came in the exam which is finished i only want to know i chose true or false i chose A5 B2 C9 D8 E6 F1 G7 H10 I3 J4
Well dur put up his/her attempted answers, so I don't feel bad for taking a stab at it. here's what I got, no guarantee it's right.
1f, 2b, 3i, 4a, 5j, 6d, 7g, 8e, 9c, 10h What did the parasitic Candiru fish say when it finally found a host? - - "Urethra!!"
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