Sponges have specialized cells and an endoskeleton, but they lack tissues and body symmetry. ... They include jellyfish and corals, both of which have radial symmetry. All cnidarians have nematocysts, and many are bioluminescent. They may exist in medusa and/or polyp form.
1 is the answer because it’s talking about chemical
2. A Mendelian trait is caused by a single gene. 3. Traits can be dominant or recessive and recur in a predictable pattern in subsequent generations. ... Autosomal Recessive Inheritance: Autosomal recessive traits can skip generations and can affect both sexes.
Environmental and genetic factors can influence the growth of many organisms on earth such as plants, animals, and even fish. When the climate changes, many animals/organisms adapt by adaptation and evolution. Every organism can evolve in order to stay alive in this race of competition for survival. This is a natural accordance that happens every day in our world. Thus making organisms stay alive for longer periods of time.
