What Is One Reason That Early Life Formed Cells

question 29

Multiple Choice

What is one reason that early life formed cells?

• A) only cells can replicate
• B) cell walls prevent heat from escaping
• C) cells help to protect fragile biological molecules from the outside environment
• D) biological reactions can occur only within cells

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Definitions:

Mammography

An X-ray imaging method specifically used for breast examination, helping in the early detection of breast cancer.

Retrograde Pyelography

A diagnostic X-ray technique in which a contrast medium is introduced into the kidneys from the bladder to visualize the urinary system.

Urethral Catheter

A pliable conduit placed via the urethra into the bladder for the purpose of draining urine.

Contrast Medium

A substance used in medical imaging to improve the visibility of internal bodily structures in radiographic studies like MRIs and CT scans.