X light things
To my Friends
Estrelícia
Sunrise
Red
Serra da Freita
Here he is, alone with his herd of 9 cows, the Cão…
HFF
Rio Paiva - Início
Passadiços
Rio Paiva - going on . . .
Serra da Estrela I
Serra da Estrela - II
Serra da Estrela - V
You and me
Serra da Estrela - VIII
Serra da Estrela - III
HFF
Guarda - looking South
Serra da Estrela
Sun
Serra da Estrela - Pinho Nórdico
Praia do Cabo Espichel : 38,4144 N -9,2228 W
Praia - Tróia
Virou a maré
Berlengas
Agapanthus
Love Flower
Feel good factor above it all.
Nenúfar
Me
The Sado meets de Atlantic
Hope and Green, Past comes later...
It's only me
The four sisters
Hope
Red
Torrão
Yellow
HFF
Estremoz
Capuchos III
Alentejo VIII
May
Alentejo - V
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Sponge - Tróia
Sponges are similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells. Unlike other animals, they lack true tissues and organs, and have no body symmetry. The shapes of their bodies are adapted for maximal efficiency of water flow through the central cavity, where it deposits nutrients, and leaves through a hole called the osculum. Many sponges have internal skeletons of spongin and/or spicules of calcium carbonate or silicon dioxide. All sponges are sessile aquatic animals. Although there are freshwater species, the great majority are marine (salt water) species, ranging from tidal zones to depths exceeding 8,800 m (5.5 mi). While most of the approximately 5,000–10,000 known species feed on bacteria and other food particles in the water, some host photosynthesizing microorganisms as endosymbionts and these alliances often produce more food and oxygen than they consume. A few species of sponge that live in food-poor environments have become carnivores that prey mainly on small crustaceans.
kiiti, Tanja - Loughcrew, Trudy Tuinstra, Malik Raoulda and 12 other people have particularly liked this photo
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