Which statements best describe shared characteristics?

Which statements best describe shared characteristics?

The statement that describes shared characteristics best is “Shared characteristics can be new characteristics that have been modified from what was found in the common ancestor”. Shared characteristics are the derived characteristics that we get from our ancestors.

Which best describes how shared characteristics can be used to identify evolutionary relationships?

Which best describes how shared characteristics can be used to identify evolutionary relationships? If organisms have a common ancestor, most of their characteristics will be shared. If organisms have a shared characteristic, it means they are closely related.

Which best describes derived characteristics Brainly?

Derived characteristics are characteristics that are shared by the clade, but which are not shared by the other related clades and which are not shared by the ancestors; but which evolved in this clad only. So the correct answer is: They are newly evolved traits.

What is the important of tissue?

1)It protects the organs from injury or shocks. 2)It also connects many body parts such as ligament connects bones to another bones. 3)It also provides nutrition to our body such as blood also transport nutrients to many parts of the body.

How is a jellyfish different from a Portuguese Man O War?

The Portuguese man o’ war, (Physalia physalis) is often called a jellyfish, but is actually a species of siphonophore, a group of animals that are closely related to jellyfish. While the man o’ war’s sting is rarely deadly to people, it packs a painful punch and causes welts on exposed skin.

What are the characteristics of porifera?

What are the characteristics of phylum Porifera?

• These are pore-bearing multicellular animals.
• The body has no organs.
• They exhibit holozoic nutrition.
• The body is radially symmetrical.
• They can regenerate their lost parts.

What is the function of porifera?

Sponges are unusual animals in that they lack definite organs to carry out their various functions. The most important structure is the system of canals and chambers, called a water-current system, through which water circulates to bring food and oxygen to the sponge.

What are the functions of Choanocytes?

Choanocytes are versatile cells. Their flagella beat to create the active pumping of water through the sponge, while the collars of the choanocytes are the primary areas that nutrients are absorbed into the sponge. Furthermore, in some sponges the choanoflagellates develop into gametes.

What are two functions of Amoebocytes?

Amoebocytes have a variety of functions: delivering nutrients from choanocytes to other cells within the sponge, giving rise to eggs for sexual reproduction (which remain in the mesohyl), delivering phagocytized sperm from choanocytes to eggs, and differentiating into more-specific cell types.

What do porifera and Cnidaria have in common?

Porifera and Cnidaria are organisms which share similar characteristics with one another. -They are both multicellular, they consist of many cells working together. They are both eukaryotic, they have DNA in the form of chromosomes contained within a distinct nucleus.

What is the difference between porifera and cnidaria?

Porifera are aquatic organisms known as sponges, while cnidarians are for example jellyfishes, corrals, etc. Poriferans are the most simple multicellular animal organisms. They are always sessile while cnidarians may be sessile (the corrals) or free living (jellyfishes).

Is Coelom present in porifera?

Poriferans have no true coelom hece called as Acoelomates. They have a small cavity called as spongocoel.

Is Coelom present in Coelenterata?

All coelenterates are aquatic, mostly marine. The bodyform is radially symmetrical, diploblastic and does not have a coelom. The body has a single opening, the hypostome, surrounded by sensory tentacles equipped with either nematocysts or colloblasts to capture mostly planktonic prey.

Is Cephalization present in porifera?

Sponges have no particular symmetry; they are not radially or bilaterally symmetrical. Cephalization only occurs in bilaterally symmetrical animals. Body cavity. The body cavity is the place where digestive and other internal organs form.

Which type of body plan is found in porifera?

The most simplistic body plan within the phylum porifera is the asconoid body plan. This is such a simplistic structure because the body plan has only one large internal chamber, called a spongocoel, that is lined with water-filtering choanocyte cells.

What does Spongocoel mean?

A spongocoel (/ˈspɒŋɡoʊˌsiːl/) is the large, central cavity of sponges. Water enters the spongocoel through hundreds of tiny pores (Ostia) and exits through the larger opening (osculum). Porococytes–These cells line the pores of the sponge. They are the structure through which water is taken into the organism.

Which type of body plan is found in sponges?

There are three different body plans found among sponges: asconoid, synconoid, and leuconoid. Sponge feeding is critically dependent on several specialized cells within the organism including the following: choanocytes, amoebocytes, and porocytes.

Which body type has more than one Osculum?

Leucon sponges

What is meant by Gemmules?

Gemmules are internal buds found in sponges and are involved in asexual reproduction. It is an asexually reproduced mass of cells, that is capable of developing into a new organism i.e., an adult sponge.

What are Ostia?

Ostia are the inhalant pores in the body of sponges. Water enters the body of sponges through ostia and reaches the spongocoel. It then flows out of the body through osculum. Ostia is present only in sponges i.e. phylum Porifera as sponges have a porous body.