All categories

4 years ago

Which describes the missing step?

Biology

1 answer:

Nimfa-mama [501]4 years ago

6 0

Answer:

The missing step is oxygen is removed from the water after step 3.

Explanation:

The steps listed by Xavier are:

Water is drawn in trough pores and enters the central cavity.
Food is filtered and digested.
Water leaves trough an opening at the top of the body.

Porifera or sponges are aquatic, immobile invertebrates whose structure is saccular with an upper opening, the osculus.

Sponges absorb water through their pores, where the porocytes are found, and through flagellated cells -the coanocytes- the movement that allows the entrance of water to the spongocele or atrium is produced, in addition to the phagocytosis of organic elements.

Once the water is in the interior chamber of the sponges, the organic particles are phagocyted to be digested, and the oxygen is removed from the water, and passes through diffusion into the cell. The waste products, as well as carbon dioxide, are released into the water that will be expelled through the osculus.

In Xavier's list, the missing step is the removal of oxygen from the water, before it is expelled from the body of the sponge.

Learn more:

Sponge structure brainly.com/question/11256747

You might be interested in

Compare and contrast viruses and bacteria

IRISSAK [1]

Answer:

A Virus is a infectious agent that only multiply in the living cells of organisms

Bacteria (Can depend on which kind) is a member of a large group made up of unicellular microorganisms. They contain cell walls but do not contain a nucleus or organelles.

Some bacteria can cause diseases like viruses.

Pls mark brainliest if this is what you wanted. Have a nice day.

4 0

4 years ago

How can seismic waves be used to determine an earthquakes epicenter????

lianna [129]

The difference in arrival time between the two types of seismic wave can be used to calculate the distance of the earthquake's epicenter from the seismometer, as the further away an earthquake is, the greater the lag time between the detection of the S waves relative to the P waves.

7 0

3 years ago

Read 2 more answers

What are the effects of glacial deposition?

vodomira [7]

Explanation:

a glaciers way combined with its gradual movement can drastically are we shaped the landscape over hundreds or even thousands of years the icy roads the land surface and carries a broken rocks and soil temperatures far from their original places

5 0

3 years ago

Read 2 more answers

What is the diagnosis of the individual

Sergeeva-Olga [200]

I think the answer is A

5 0

3 years ago

A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type of

Alisiya [41]

Answer:

density independent

Explanation:

In Ecology, a limiting factor refers to an environmental condition that hinders the growth and distribution of organisms in an ECOSYSTEM. A limiting factor hinders or hampers the productivity of an organism in its habitat.

There are two major types of limiting factors that affect organisms in their ecosystem viz: density dependent and density independent limiting factors. Density independent factor limits the size of a population independently of how dense the ecosystem's population is. This means that density independent factor affects a population irrespective of its size. Example of density independent factor are natural disasters e.g earthquake, hurricane, forest fire as mentioned in the question.

In this question, both populations of trees and birds are affected irrespective of the size of the ecosystem's population.

8 0

3 years ago