Sponges is a group of organisms that belong to the Phylum Porifera. They have multicellular bodies composed of surface that is full of channels and pores that function in circulation of water through them. Sponges are commonly used for washing dishes because of their porous nature and ability to clean everything nicely due to smooth inflow and outflow of water and soap. However, most of the sponges used for dish washing purposes are artificial now adays. However, even artificial sponges are modeled by real sponges and real sponges in their actual form are not used for cleaning purposes.
<u>The correct answer is letter A.</u> When washing the dishes, you most likely used an animal from the Porifera phylum. Sponges are everyday household materials we have for dishwashing and they belong to the Porifera phylum. Their bodies allow water to circulate through them and they have distinct pores that are visible all over their bodies.
Given the age of the meteorite is 4.5 billion years old with 78 atoms of lead-206 the answer should be B. 156. The half-life of uranium-238 in order to decay into lead-206 is 4.46 billion years, which means that the original number of atoms is 156.
Niclosamide is an anti-helminth drug. It works by inhibiting ATP generation in the mitochondria. ATP which is a major source of energy for cellular organisms is deficient thereby hindering or stopping metabolic processes and then death. Helminths in which Niclosamide is effective against include Pin worm, Round wo,Beef tapeworm( Taenia saginata) etc. The drug is taken orally.
