1 to 2 years approximately would pass before the first deficiency of vitamin A symptoms would appear
- Anemia caused by a vitamin deficiency typically takes months or years to develop.
- At first, signs and symptoms may be mild, but as the deficit gets worse, they typically become more obvious.
- Additionally, vitamin A promotes the development and activity of white blood cells, participates in bone remodeling, aids in the maintenance of healthy endothelium cells, which line the internal surfaces of the body, and controls cell growth and division, including that required for reproduction.
- Preformed vitamin A and retinol are the two main types of vitamin A found in human diets (retinol, retinyl esters
the symptoms of vitamin A deficiency include:
- Eye dryness The most well-known effects of vitamin A insufficiency include eye problems.
- Night Blindness, Infertility and Difficulty Conceiving, Delayed Growth,
- Throat and Chest Infections, Poor Wound Healing, Acne and Breakouts, and
- Delayed Growth are some of the symptoms.
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The main difference between dominant and recessive genes is that dominant genes get phenotypically exerted faster compared to genes that are being recessively transfered. These genes must have to be presented 2x more often (both alleles have to be recessive) for them to be exerted phenotypically.
<span>Decline in grooming, sudden mood changes, and extreme changes in sleep or appetite, bloodshot eyes, secretive behaviours and nosebleeds, Unusual smells on clothes or breath,</span>
Depends on what you're looking at. Colors seem to have a role in how we feel, out heart rate. But being able to look at calming scenery, of bright greens and blues is calming because it's the colors of life, and our minds sees the colors and we instantly become more calm. Green is calming because it's color that is found quite frequently in nature, so essentially it's good.<span />
Answer:
The Aplysia withdrawing it's gills is demonstrating a gill and siphon withdrawal reflex (GSWR) phenomenon
Explanation:
The hill and siphon withdrawal reflex (GSWR) is involuntary and a defensive reflex. This reflex causes delicate siphon and gill to be retracted when an animal is disturbed.
A two-component reflex is triggered when weak or moderate stimulus is applied to a siphon or the mantle shelf. These two components consist of two reflex acts, the siphon-withdrawal reflex and the gill-withdrawal reflex. Together they often form a reflex pattern with short latency that protects the animals gill and siphon to potentially threatening stimuli.
An habituation in an Aplysia californica for example is which is an Aplysia gills is when a stimulus is presented continously to an animal and there is a progressive decrease in response to that particular stimulus.
