try this! which one of the following kinds of animals are triploblastic?
which one of the following kinds of animals are triploblastic?



 option 1)
 flat worms
 
 option 2)
 sponges
 
 option 3)
 ctenophores
 
 option 4)
 corals
phylum platyhelminthes (flat worms) -

free living, commensal or parasite with dorsoventrally flattened body, bilaterally symmetrical, triploblastic and acoelomate.

- wherein

eg. taenia, fasciola

 

 


option 1)

flat worms

this is correct option

option 2)

sponges

this is incorrect option

option 3)

ctenophores

this is incorrect option

option 4)

corals

this is incorrect option
the crocodile is the reptile that is characterized by the presence of a four-chambered heart.   reptiles are a class of vertebrates made up mostly of snakes, turtles, lizards, and crocodilians. instead of possessing gills like fish or amphibians, reptiles have lungs for breathing. reptiles are four-legged vertebrate animals. the skin of reptiles is covered with scales their metabolism depends on the temperature of their environment. reptiles are oviparous (egg laying) reptiles have several bones in the lower jaw, only one of which, the dentary, bears teeth. almost all reptiles and amphibians have three-chambered heart, except crocodile. chloroplast is a powerhouse for the synthesis of carbohydrates in plants. it is broadly divided into three parts (fig 3) namely:a) membrane: chloroplast is double walled organelle viz. it contains inner and outer membrane.b) stroma corresponds to the cytoplasm of chloroplast. it also serves as site for dark reaction of photosynthesis to take place.c) thylakoids/ granum: thylakoids contains chlorophyll that absorbs light. stacks of thylakoids are known as granum.fig 3 shows different parts of chloroplast quadrille, quadruple, quadruplet, quadrupled, quadruples, kibbles. i. given:valency of carbon is 4valency of chlorine is 1by applying criss-cross method:formula: ccl4thus, the formula for carbon tetrachloride is ccl4.ii. given:valency of element x is 1valency of oxygen is 2by applying criss-cross method:formula: x2o legs, thighs and breast.......same with chicken too.......................... you should have three choices.

 thanks for the update...i'll check it out. here are a few that i usually recommend: ok, so i found an answer for you:
with a cat, there is more than one thing you can be allergic to; you might be allergic to cat hair, or you might be allergic to cat dander. you might be allergic to both. since there is more than one thing, then it is plural. cat allergies.
an egg is just one thing, and if you are allergic to eggs, you are just allergic to the egg as a whole. since it is only one allergy, and not multiple allergies like the allergies to cat hair and cat dander, then it is singular. egg allergy. yes dear eat hard boiled eggs or omlete as you wish but don't eat soft boiled eggs.. i think the fish you are describing is "tropheus". they are a very pretty & aggressive smaller fish.