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منذ 16 ساعة نشر في ٢٠٢٦/٠٨/١٢ م

Most species of land planarians live at the soil of forests, especially in the leaf litter layer, but some may inhabit galleries constructed by other invertebrates or be found on vegetation, such as bromeliads.

Despite being sensitive to dehydration, some species are well adapted to considerably dry environments, such as savannas.

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منذ 22 ساعة نشر في ٢٠٢٦/٠٨/١٢ م

Imam al-Sadiq (PBUH) said: When a believing Muslim frequently asks Allah for forgiveness, his record (of deeds) will ascend while it will be glowing.

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منذ 2 أيام نشر في ٢٠٢٦/٠٨/١١ م

Although there are over 830 known species of Geoplanidae in the world, the diversity of land planarians is still poorly known.

The highest diversity occurs in tropical forests in South America, Asia and Australia. Europe and North America are relatively species-poor, while the diversity of Africa may be as high as that of other tropical regions, but is highly understudied.

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منذ 2 أيام نشر في ٢٠٢٦/٠٨/١١ م

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منذ 3 أيام نشر في ٢٠٢٦/٠٨/١٠ م

Contrary to aquatic planarians, land planarians do not have a distinct brain, i.e., there is no clear frontal cluster of nerve cells other than the ventral nerve plate.

The family Geoplanidae is composed of five subfamilies:
Bipaliinae
Geoplaninae
Microplaninae
Rhynchodeminae
Timyminae

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منذ 4 أيام نشر في ٢٠٢٦/٠٨/٠٩ م

Imam Ali (PBUH) taught someone to seek Allah in invocation in brief by saying: Praise is (only) to Allah for every blessing; and I ask Him for all goodness; and I take refuge in Allah from all vices; and, I seek the forgiveness of Allah for all sins.

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منذ 5 أيام نشر في ٢٠٢٦/٠٨/٠٨ م

Imam Ali (PBUH) said: Perfume yourself with penitence so that the stench of your sins do not disgrace you.

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منذ 6 أيام نشر في ٢٠٢٦/٠٨/٠٧ م

The nervous system of land planarians has the longitudinal nerve cords reduced to one ventral pair that is located much deeper in the body than in other triclads. These ventral cords are usually connected by many comissures, so that they fuse into a single ventral nerve plate.

Additionally, land planarians have a highly developed ventral nerve plexus just below the epidermis that is probably associated to the presence of a creeping sole.

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منذ 7 أيام نشر في ٢٠٢٦/٠٨/٠٦ م

The epidermis of land planarians is composed by a simple epithelium of cubic or columnar cells. The cells are ciliated only on a ventral region, called creeping sole, which the animal uses to glide over surfaces.

Numerous secretory cells open throughout the epidermis, the most characteristic ones being the rhabditogen cells, which produce a secretion in the form of small rod-like structures, the rhabdites. Rhabditogen cells are very numerous on the dorsal epidermis.

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٨/٠٥ م

The most distinguishing feature that characterizes land planarians is the presence of a creeping sole, a highly ciliated region on the ventral epidermis that helps them to creep over the substrate.

The creeping sole may be wide and flat, occupying most of the ventral surface, or narrow and pronounced, being easily distinguished from the rest of the ventral surface.

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٨/٠٥ م

Imam al-Sadiq (PBUH) said: Anger is a destroyer for the heart of a sage; and he who does not have his anger under his control does not have his wisdom under his control, either.

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٨/٠٤ م

Imam al-Sadiq (PBUH) said: He who restrains his anger, Allah will cover his blemishes.

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