The correct answer is 2) Sporozoan are parasitic.
Sporozoans are strictly parasitic protists and this is what separates them from others. They are immobile and stick to their host.
Answer:
B. Many active genes are found in euchromatin, because proteins involved in transcription can easily access these regions of DNA.
Explanation:
Euchromatin is the loosely coiled chromatin and is capable of undergoing the process of transcription. On the other hand, heterochromatin is the highly coiled and compacted chromatin present in its inactive state. Active genes are associated with more loosely packed chromatin, which is the euchromatin. This is due to the fact that the DNA in euchromatin is not tightly packed which in turn allows its interaction with a transcription factor. The tightly packed DNA of heterochromatin cannot interact with proteins requires for gene expression.
Stress initiates biological changes involving the autonomic and endocrine systems, as well as the system that helps the body ward off illnesses, the immune system.
<h3>What is the immune system?</h3>
The immune system is a body system used by the body to fight against infections and diseases caused by bacteria and viral entities (they are not organisms).
The immune system is composed of physical barriers such as the skin mucous membranes, and endothelia that fight against pathogenic infections.
In conclusion, stress initiates biological changes involving the autonomic and endocrine systems, as well as the system that helps the body ward off illnesses, the immune system.
Learn more about the immune system here:
brainly.com/question/823997
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