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Alinara [238K]
3 years ago
8

Why are echinoderms more advanced than arthropods and mollusks?

Biology
1 answer:
mihalych1998 [28]3 years ago
4 0
They have internal skeletons which cover their skin. The body of an echinoderm seems little more than a skeleton of tiny plates and water. They don't use large muscles working on large body parts like many other animals. Instead they move, feed and breathe with a unique water-vascular system ending in hundreds of water-filled tube feet.
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white blood cells; formed elements involved in body protection that take part in inflammatory and immune responses are:
svetoff [14.1K]

Neutrophils They kill and then digest the bacteria and the fungi. They are the most numerous type of the white blood cell and your first line of the defense when the infection strikes.

A high level of neutrophils in the blood is called neutrophilia. This is a sign that your body is infected. Neutrophilia can indicate many underlying conditions and factors, including: Infection, possibly bacteria. They capture and destroy invading microbes through phagocytosis and intracellular degradation, release of granules, and formation of neutrophil extracellular traps upon detection of pathogens. Neutrophils are also involved as inflammatory mediators. What is the most common cause of high neutrophils? infection. This is the most common cause of high neutrophil counts. Most bacterial infections cause elevated neutrophil counts, but not all. Viral infections generally do not cause neutrophilia, but it can occur early in the infection.

To know more about neutrophils visit:

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5 0
1 year ago
In which stage of cell division is the dna copied?
Tcecarenko [31]
Mitosis in the stage prophase chromosome and DNA is copied
8 0
3 years ago
I’m stuck and need help please .
N76 [4]
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3 0
3 years ago
Sperm cells get energy to power their movement from __________, which is contributed by the __________.
777dan777 [17]
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3 0
3 years ago
Which of the following methods might be used to decrease the rate of approach to carrying capacity by the developed world?
dangina [55]

Decrease resource use methods might be used to decrease the rate of approach to carrying capacity by the developed world

<u>Explanation:</u>

Carrying capacity is the greatest quantity of people of a supplied species that an area's sources can support frequently without significantly spending or diminishing those resources. For communities which increase exponentially, growth begins gradually, starts a fast maturity phase and then straightens off when the carrying capacity for that species has been touched.

The proportion of the population then shifts somewhat above or below the carrying capacity. Reproductive lag time may produce the population to exceed the carrying capacity temporarily. The carrying capacity may be reduced by resource leveling and disgrace during an overshoot period or spread through technological and social changes.

4 0
3 years ago
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