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Vladimir [108]
3 years ago
10

Difference between hydra, sponge and obelia

Biology
1 answer:
Simora [160]3 years ago
5 0

Answer:

Hydra are simple freshwater animals, while Obelia lives in the sea or fresh water

Explanation:

The main difference is that Hydra's body shape is a polyp, while Obelia consist of polyps and medusae in its life cycle

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Air displacement plethysmography (ADP) measures the volume of a controlled chamber compared to body volume to determine body fat percentage.

<h3>What is Air displacement plethysmography (ADP)?</h3>

A two-component model called air displacement plethysmography (ADP) measures mass and volume, allowing for an assessment of body density (Db). This allows for the estimate of fat and fat-free mass using body density, which is calculated by dividing mass by volume (FFM).

With air-displacement plethysmography, an object's volume is indirectly determined by calculating how much air it displaces inside a sealed chamber (plethysmograph). Therefore, a patient is placed inside the chamber and their body volume is measured by how much air they can move while sitting within.

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2 years ago
Why is it important that the cellâs dna is duplicated before cell division?
Vadim26 [7]

Answer:

Explanation:

It is important that a cell undergoes replication before cell division occurs because, the main goal of cell division is to make more cells. And for all these cells to remain functional, all their components must be intact and complete. without this, these cells might not function. Thus, the goal of replication is to produce the next new copy that would go into one of the daughter cells produced. With DNA replication, the set of DNA present in a cell can be duplicated and then each daughter cell that results from division can have its own entire set of DNA and then cell division can theoretically continue as normal indefinitely.

8 0
4 years ago
What fill the region between the cell membrane and the nucleus?
Ahat [919]
<span>The fluid-filled region between the nucleus and the cell membrane is called the CYTOPLASM. ... This is because cytoplasm is packed with organelles that are critical to a cell's survival, including mitochondria, ribosomes, Golgi bodies, and the endoplasmic reticulum.</span>
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A lack of pigmentation called
Ray Of Light [21]

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Explanation:

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