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فهم أنواع الحيوانات

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فهم أنواع الحيوانات

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بنهاية الدرس، سيتمكن الطلاب من تحديد وتصنيف الحيوانات إلى فقريات ولافقريات بناءً على وجود العمود الفقري.

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ما هو العمود الفقري وما هو دوره في تصنيف الحيوانات؟

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شاهدوا فيديو قصير يوضح الفقريات واللافقريات.

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THE ANIMAL KINGDOM. VERTEBRATES AND INVERTEBRATES | Educational Videos for Kids

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ممارسة جماعية

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ممارسة جماعية

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قسّم الطلاب إلى مجموعات لبحث أنواع الحيوانات وتصنيفها باستخدام جدول التصنيف.

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ممارسة مستقلة

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ممارسة مستقلة

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اطلب من الطلاب تصنيف مجموعة من الصور لحيوانات إلى فقريات ولافقريات.

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لتحدي الطلاب المتقدمين، امنحهم فرصة للبحث عن حيوانات نادرة وتصنيفها.

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A rare species is a group of organisms that are very uncommon, scarce, or infrequently encountered. This designation may be applied to either a plant or animal taxon, and is distinct from the term endangered or threatened. Designation of a rare species may be made by an official body, such as a national government, state, or province. The term more commonly appears without reference to specific criteria. The International Union for Conservation of Nature does not normally make such designations, but may use the term in scientific discussion.

Rarity rests on a specific species being represented by a small number of organisms worldwide, usually fewer than 10,000. However, a species having a very narrow endemic range or fragmented habitat also influences the concept. Almost 75% of known species can be classified as "rare".

Rare species are species with small populations. Many will move into the endangered or vulnerable category if the negative factors affecting them continue to operate. Well-known examples of rare species - because these are large terrestrial animals - include the Himalayan brown bear, Fennec fox, Wild Asiatic buffalo, or the Hornbill.

They are not endangered yet, but classified as "at risk", although the frontier between these categories is increasingly difficult to draw given the general paucity of data on rare species. This is especially the case in the world Ocean where many 'rare' species not seen for decades may well have gone extinct unnoticed, if they are not already on the verge of extinction like the Mexican Vaquita.

A species may be endangered or vulnerable, but not considered rare if it has a large, dispersed population. IUCN uses the term "rare" as a designation for species found in isolated geographical locations. Rare species are generally considered threatened because a small population size is less likely to recover from ecological disasters.

Rare plants can be classified based on the size and distribution of their populations. Some species may be rare because they consist of only a few individuals, are confined to a limited geographic area, or both. Certain rare plants are found sparsely distributed across a wide area. Others might have a large number of individuals that are concentrated in a very small area, such as a single county or canyon. The rarest plants typically have both a small number of individuals and a very limited geographic range.

Assessments of the status of rare plants are conducted using the best available data and consider various factors, including:

Total number of occurrences and the condition of these populations

Population size

Extent of range and area occupied

Trends in population size and distribution over the short and long term

Nature, severity, and urgency of threats

Number of occurrences that are protected and actively managed

Intrinsic vulnerability of the species

Specificity to environmental conditions

A rare plant's legal status can be observed through the USDA's Plants Database.

Notes:

Last recorded that 7 were in captivity in 1960, in zoos, circuses etc., in the International Zoo Yearbook II. Reports that there is a small population left in Malay Peninsula and Myanmar.

On 19 March 2018, the last known Northern white rhinoceros male died, but his and another male's sperm was collected and has been used to fertilize eggs as part of a de-extinction effort. Last two known Northern white rhinoceros are both female and held in captivity in the Ol Pejeta Conservancy, Kenya. Unknown if anymore exist in the wildlife and if none exist in the wildlife they would be functionally extinct.

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A rare species is a group of organisms that are very uncommon, scarce, or infrequently encountered. This designation may be applied to either a plant or animal taxon, and is distinct from the term endangered or threatened. Designation of a rare species may be made by an official body, such as a national government, state, or province.

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ملاحظة ومناقشة

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ملاحظة ومناقشة

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قم بملاحظة تفاعل الطلاب ومناقشتهم داخل المجموعة لتحديد مدى فهمهم للتصنيف.

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قدم اختبارًا قصيرًا لقياس فهم الطلاب للفقريات واللافقريات.

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Wordwall - Create better lessons quicker

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Quiz - A series of multiple choice questions. Tap the correct answer to proceed.

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خلاصة جماعية

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خلاصة جماعية

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نظم مناقشة جماعية لتلخيص ما تعلمه الطلاب عن الفقريات واللافقريات.

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تذكرة الخروج

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تذكرة الخروج

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اطلب من كل طالب كتابة تذكرة خروج تتضمن نقطة تعلم جديدة من الدرس.

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قم بحل ورقة عمل تشمل أسئلة عن أنواع الحيوانات الفقرية واللافقرية.

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13 Best Vertebrates and invertebrates ideas | vertebrates and invertebrates, vertebrates, invertebrates

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Sep 12, 2022 - Explore senthil vadivu arunachalam’s board “Vertebrates and invertebrates” on Pinterest. See more ideas about vertebrates and invertebrates, vertebrates, invertebrates.

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مشاهدة فيديو

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مشاهدة فيديو

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شاهد فيديو تعليمي حول التصنيف العلمي للحيوانات الفقرية واللافقرية.

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Animal Classification for Kids | Learn how to Classify Animals and the Animal Taxonomies

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شاهد الفيديو عن الفقري

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شاهد الفيديو عن الفقريات

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درس الفقريات و اللافقريات