1 which phylum has 2 openings for its digestive system a...

1. Which phylum has 2 openings for its digestive system? A) Platyhelminthes B) Cnidaria C) Chordata D) Porifera 2. Which is not a member of Cnidaria? A) Coral B) Sea anemone C) A cat D) Jellyfish 3. How do sponges eat? A) Use hands B) Use jaws C) Use tentacles D) Filter feeding 4. Which is the mobile form of Cnidaria? A) Stipe B) Polyp C) Larvae D) Medusa 5. Which phylum was the first to have bilateral symmetry? A) Chordata B) Platyhelminthes C) Arthropoda D) Cnidaria 6. If I found an animal near the San Gabriel River natural trail that had 4 legs and a tail, it would belong to phylum ___. A) Platyhelminthes B) Arthropoda C) Cnidaria D) Chordata 7. If I found an animal with an exoskeleton and 8 legs (that are jointed), what phylum does it belong to? A) Arthropoda B) Porifera C) Chordata D) Platyhelminthes

Transcript

00:01 Yeah, hi.

00:02 So in this question we have to talk about the phylum or we have to name the phylum that is consisting of two openings of its digestive system.

00:11 So here i must tell you that the correct answer of it will be the poor data.

00:17 Yes.

00:18 So core data is the correct answer, the correct phylum that is being asked in the question.

00:24 If you talk more about this, yes, about the openings.

00:28 So here you can understand that.

00:31 Not only core data but also the phylam nematoda enelida atroreda mullus and you can say a kinoderma also all these are having two openings yes two openings that means it is having mouth yes as well as they are having innes fine so it becomes two opening and these two openings when are present are called as the you can say digestive system as complete yes so here they are having complete digestive system that's where they're having clothes right so as i already told you where they are from yes this is the first part of the question fine and what is the next part of the question the next part of the question ask us that which is not a member of the nadaria yes so here i must tell you that if we talk about this then the answer over here will be the option c.

01:34 What is the option? the c option is a cat.

01:39 Obviously, a cat is a feline species, yes, and it is a cat family.

01:44 It is other thing, it is a mammal.

01:46 Yes.

01:47 So that's why cat will be the correct answer.

01:50 But if you talk more about this, then you can understand that if we talk about the nid area, it will have animals of equit.

02:00 Environment, yes, which are having what, they are having stinging cells, yes, stinging cells.

02:09 Why are these used? they are used to, you can say, defend themselves, yes.

02:15 And also they are having nedoblasts.

02:18 These are itself the stinging cells only.

02:21 They are called neutroblasts and also they are having tentacles as well.

02:25 So these are the nidaria characters, you can say.

02:29 So, so, cat is not a member of what? mederia.

02:32 Okay.

02:32 Now what? now we talk about the next one.

02:35 Yes, the next part of the question is that how do sponges? yes, we are talking about the sponges over here.

02:42 How do sponges will eat? so for these, what they will use is the correct answer over here will be the option d.

02:51 What is the option d? the option d is filter feeding.

02:56 What is this filter? feeding.

03:00 If you talk about this filter feeding, then you have to understand that if you talk about the sponges.

03:07 Yes.

03:07 So in sponges, you can say they are having equated filter feeders.

03:15 Yes, as i already told you.

03:17 And they consist of ostea.

03:21 What are these ostea? ostea are basically the pores on the walls.

03:25 Yes...

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