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).
It would be Primary because the lake is it’s starting point and the pollution grew all the way to the factory.
Explanation:
We know that the larger the circle, the more large the diameter of the circle the more the quantity being studied.
We can clearly see that the South eastern coast of Australia has more number of people diagnosed with cancer.
The South western and the Northern part also records a sizable amount of skin cancer cases.
- In the middle part of the map where the circles are small, the number of people diagnosed with cancer is very low
- Other areas without the circle did not record any case of skin cancer.
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<span>The Correct answer is not shown. The correct answer would have to say Atom A has one proton than Atom B because in the question it says Atom A has an atomic number of 19 and Atom B has an atomic number of 20.</span>
Answer:
por un menos contagio de bacterias como lo dice su nombre
Explanation:
«««“gel Anti bacterial”»»»
