Which of the Following Statements About Keystone Species Is True

question 74

Multiple Choice

Which of the following statements about keystone species is true?

• A) They are very abundant.
• B) Their removal has a great effect on community structure.
• C) They practice herbivory.
• D) They have regular dispersion patterns.
• E) They have clumped dispersion patterns.

Detail the role and types of antibodies in immune response.

Explain the role of vaccines in developing immunity.

Understand the mechanisms of allergic reactions and anaphylaxis.

Identify methods used to diagnose and stage diseases, including cancer.

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Definitions:

Nemerteans

A phylum of invertebrate animals also known as ribbon worms, which are known for their elongated bodies and proboscis used for feeding and defense.

Phoronids

A small phylum of marine animals that live in tubular structures and filter feed, known for their horseshoe-shaped lophophore.

Gastropods

A large class of mollusks that includes snails and slugs, characterized by a univalve shell or the absence of a shell.

Leeches

Parasitic or predatory worms belonging to the phylum Annelida and known for their use in medicine, especially for bloodletting.