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A 50-year-old member asked:

can you tell me how is parthenogenesis and spores the same and different?

1 doctor answer1 doctor weighed in
Dr. Thomas Josa
Allergy and Immunology 39 years experience
Mixing of genes: Well to get technical parthenogenesis happens by asexual reproduction in certain species so the embryo will develop without fertilization. Spores are produced by sexual reproduction having genes contributed by both male and female of the species.

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A member asked:

Do eyeballs stay the same size for life?

7 doctor answers12 doctors weighed in
Dr. Russell Faust
Dr. Russell Faustanswered
ENT and Head and Neck Surgery 29 years experience
No: Eyes grow from birth through the teen years.
A 21-year-old member asked:

Ive heard lots of different names for raynauds disease, phenomenon, syndrome are they all the same?

2 doctor answers4 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Related & different: When a patient has raynaud's phenomenon (the symptom of vasospasm leading to poor circulation in the fingers and toes), his doctors will look for the common causes such as autoimmune disorders, drug side effects, hormonal imbalances, etc... If no medical condition is found that is causing the symptoms, then the disorder is called "primary". If a condition is found, then the disorder is "secondary".
A 27-year-old member asked:

Do all STDs have equal incidence in the us?

1 doctor answer2 doctors weighed in
Dr. Marcus Degraw
Pediatrics 22 years experience
No: No. Overall, there's about 20 million new STD infections in the US every year. They range from HPV, that infects most people who are sexually active (80% plus by age 50 yr) down to HIV which causes about 45,000 new infections per yr in the US. Chlamydia, the most common bacterial STD causes at least 3 million infections per yr in the US.
A 21-year-old member asked:

Are thiocyanate and cyanate the same?

2 doctor answers3 doctors weighed in
Dr. Christopher Guzik
Family Medicine 24 years experience
No: Thiocyanate a salt analogous in composition to a cyanate, but containing sulfur instead of oxygen and relatively nontoxic. It is one of the compounds produced in the body as a detoxicating mechanism. Continued ingestion can cause goiter.
A 21-year-old member asked:

Does MS always progress the same way?

4 doctor answers8 doctors weighed in
Dr. Virginia Simnad
Neurology 28 years experience
No: Ms disability progresses at a variable pace, influenced in part by age at symptoms onset, use of disease modifying therapy, effective use of rehabilitation strategies to optimize function. Genetic background also likely plays a key role in the aggressiveness of this disease. Cognitive reserve or "plasticity" of the CNS helps compensate for advancing disease longer.

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Last updated Sep 26, 2018

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