Sponge embryos develop ectoderm, endoderm, and mesoderm like other animal.
a. true
b. false

b. false

Explanation:

Sponges are simple multicellular organisms without forming tissues but have an aggregate cellular level of body organization. They are included in the phylum Porifera, meaning they are pore bearing organisms. Sponges are acoelomate animals but have spongocoel. The sponges are diploblastic, animals derived from two embryonic germ layers; ectoderm and endoderm.  The outer dermal layer and inner gastral layer. In between these two layers, there is a gelatinous and non-cellular mesoglea containing numerous free amoeboid cells.

haploid cells;

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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