Answer:
No
Explanation:
Freshwater biology is the scientific biological study of freshwater ecosystems and is a branch of limnology.
Answer:
During meiosis Prophase I, crossing over occurs which increases genetic diversity.
Explanation:
Water pollution because the rain will carry off into a stream or some sort of body of water with the fertilizer and cause the pollution
More than 4.2 million Americans aged 40 years and older are either legally blind (having best-corrected visual acuity of 6/60 or worse (=20/200) in the better-seeing eye) or are with low vision (having best-corrected visual acuity less than 6/12 (<20/40) in the better-seeing eye, excluding those who were categorized as being blind).
The leading causes of blindness and low vision in the United States are primarily age-related eye diseases such as age-related macular degeneration, cataract, diabetic retinopathy, and glaucoma. Other common eye disorders include amblyopia and strabismus.
Click here to see the anatomy the eye and how the eyes work.external icon
Refractive Errors
Refractive Errors
Refractive errors are the most frequent eye problems in the United States. Refractive errors include myopia (near-sightedness), hyperopia (farsightedness), astigmatism (distorted vision at all distances), and presbyopia that occurs between age 40–50 years (loss of the ability to focus up close, inability to read letters of the phone book, need to hold newspaper farther away to see clearly) can be corrected by eyeglasses, contact lenses, or in some cases surgery. The National Eye Institute states that proper refractive correction could improve vision among 150 million Americans.
Kuru is the degenerative brain disorder transmitted by cannibalism. This is a very rare disease that is caused by an infectious protein or prion that is found in contaminated human brain tissue. It is found among people from New Guinea who practiced a form of cannibalism in which they ate the brains of dead people as part of a ritual during the funerals.
