Answer:
Composition of thin myofilaments:
The proteins in thin filaments are actin, tropomyosin, and troponin.
Composition of thick myofilaments:
Thick filaments are composed of protein myosin only.
I think because there are no nutrients like nitrogen in rock sand and volcanic ash♀️
Answer:
A. synthesis of vitamin C.
Explanation:
Integumentary system refers to the skin and its appendages. So it doesn't have the role to synthesis vitamin C, but it can synthesis vitamin D through exposure to UV light. The major role of integumentary system is protective role (immuno defense-from infections, dehydration, temperature changes, protection of underlying tissue etc). It also contains many receptors (for pain, touch, temperature change) that detect environmental changes.
The correct answer for the question that is being presented above is this one: "2 Discoveries that are made through cell technology sometimes result in new regulations." Cell technology affect government through d<span>iscoveries that are made through cell technology sometimes result in new regulations.</span>
The symptoms given may be a manifestation of Polycystic
Ovary Syndrome (PCOS), which is a common endocrine system disease among
females.
Symptoms are the following:
<span>1. </span>Menstrual disorders: oligomenorrhea (irregular
period) or amenorrhea (cessation of period), which start around the time of the
first period (menarche)
<span>2. </span>Infertility: which results from anovulation
(ovaries are unable to release an egg cell during ovulation)
<span>3. </span>Obesity: at least 40% of females with PCOS are
obese
<span>4. </span>Hirsutism (excessive body hair where hair is usually
minimal or absent): big amount of
masculinizing hormones in women with PCOS may cause hirsutism