E. Complete the crossword puzzle .
1. Something having air-filled spaces .
2. A cedar plant has this kind of shape .
4. A special feature developed by a plant or animal to survive .
3. Rhizophora is this kind of plant .
5. Tiny holes on leaves .
6. Sharp needle-like structures on plants .
7. Plants growing on mountains.
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Answers
Answer:
1) Skeletal pneumaticity is the presence of air spaces within bones. It is generally produced during development by excavation of bone by pneumatic diverticula (air sacs) from an air-filled space, such as the lungs or nasal cavity
2) Cedar trees typically grow in pyramidal shapes, many of which are dense when young, becoming more spare as they age until the crown has a columnar or irregular shape. Red cedar cultivars sold for landscaping may grow in a columnar shape with two or three trunks.
4) Adaptations
Adaptations are special features that allow a plant or animal to live in a particular place or habitat. These adaptations might make it very difficult for the plant to survive in a different place.
3)Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known. Rhizophora species generally live in intertidal zones which are inundated daily by the ocean.
5)The leaves are where plants do most of their photosynthesis. Carbon dioxide and oxygen enter and leave the leaves through tiny holes on the underside of the leaves. The holes are called “stomata” or little mouths.
6)Raphides are sharp needle-shaped crystals of calcium oxalate found in various tissues including leaves, roots, shoots, fruits, etc., of wide varieties of plant species, and are typically kept in highly specialized cell called idioblast
7) Trees & Shrubs.
evergreen tress
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