Organs in developing flowers include all of the following EXCEPT _____

A) shoots
B) sepals
C) petals
D) carpels


Answer: A

Biology & Microbiology

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The dark chemical that accumulates in the skin after exposure to the sun is called ________

A) melanin B) sebum C) melanocyte D) carcinoma

Biology & Microbiology

The plasma membrane of some white blood cells contain ________ that bind with proteins of cells such as bacteria that have invaded the human body. These special proteins tell the white blood cells those bacterial cells do not belong to that particular human and to phagocytize (eat) them.

a. channel proteins b. receptor proteins c. diffusion proteins d. carrier proteins

Biology & Microbiology

Thyroxine is an amino acid-derived hormone that binds to plasma membrane receptors on the surface of target cells

Indicate whether the statement is true or false

Biology & Microbiology

Which of the following statements about Neisseria meningitis is FALSE?

A) A healthy carrier state can exist. B) It is encapsulated. C) It is typically transmitted by droplet aerosols or direct contact with secretions. D) Its most distinguishing feature is a unique rash. E) It is a gram-positive anaerobe.

Biology & Microbiology