What are the life cycles of flatworms and roundworms?

1 answer:

6 0

Flatworms-In the life cycle of trematode flukes of the subclass Digenea, mollusks (mostly snails) serve as the intermediate host. Fertilized eggs usually hatch in water. The first larval stage, the miracidium, generally is free-swimming and penetrates a freshwater or marine snail, unless it has already been ingested by one.
Roundworms-Roundworms can complete their life cycle in immature dogs, but as the pup's immune system matures (usually by 6 months of age), the larval stages of the roundworm will become arrested and will encyst (become enclosed in a cyst) in the pup's muscles. They can remain encysted in the dog's tissues for months or years.

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Where do the fruits and seed of the mango come from?

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Answer:

The mango a large tree native to India and Southeast Asia This tree is grown throughout tropical regions of the world for its delicious fleshy fruit containing a large seed-bearing pit

Explanation:

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Define what is a sex -linked disorder

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any disorder involving sexual functioning, desire, or performance.any such disorder that is caused at least in part by psychologic factors. Such a disorder characterized by a decrease orother disturbance of sexual desire is called a sexual dysfunction, and that characterized by unusual or bizarre sexualfantasies, urges, or practices is called paraphilia. Also called psychosexual disorder, psychosexual dysfunction<span>.</span>

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DFG and JKL are complementary angels. m DFG=x+2,and mJKL=x-4. Find the measure of each angle

Mariana [72]

This is not a biology question this is a math question

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Read 2 more answers

What disease is most associated with Clostridium perfringens?

Vilka [71]

Answer:

The correct option is : c. gas gangrene

Explanation:

Gas gangrene is a serious bacterial infection caused by the infection of the Clostridium perfringens bacteria. This bacteria is always present in the nature and is a rod-shaped, gram-positive bacteria, that belongs to the Clostridium genus.

This disease can cause gas production in gangrene, death of the muscle tissues and also sepsis.

<u>Therefore, Gas gangrene is most associated with the bacteria Clostridium perfringens.</u>

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Which is a step of the scientific method in environmental science? A. Testing a hypothesis B.Carrying out research C.Collecting

atroni [7]

Answer:

The correct answer is Option B (Carrying out research). The step that follows this step involves forming B.a conclusion

Explanation:

The Natural environment around us is a function of both the living things and the non-living things. So, environmental science is the study of the natural environment around us. This study includes how to tackle environmental problems and further study on how humans could be impacted by the interactions with their environment. The scientific method is a step taken towards ensuring development in a field by bringing new discoveries and challenging existing beliefs through scientific tests and research. Generally, for most scientific methods of many fields, it starts with:

1. Observations

2. Making inquiry which involves asking questions

3. Forming a hypothesis, which means making untested assumptions

4. Conducting an experiment to check the hypothesis

5. Analyze the results

6. Publish the results

The correct answer is Option B (Carrying out research). Because it involves the scientific method highlighted above. The step that follows this step involves forming B.a conclusion

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