Answer:
Mutations that neither benefit nor harm the organism have a neutral effect on the organism's survival. This is called a neutral mutation or a silent mutation.
However, the brightness of a star depends on its composition and how far it is from the planet. Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs.
Answer:
A national park is a reserved area of land owned by the government which is protected from industrialization, human exploitation, and pollution.
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Difference Between Wildlife Sanctuary, Biosphere Reserves and National Park.
Wildlife SanctuaryBiosphere ReservesNational ParksNot requiredSubject to the particular area of the biosphere reservePermission is required
Oil sticks to birds preventing them from flying. Whales and dolphins and other creatures that use blow holes can get oil into their respiratory system, making it difficult to breathe. Animals can also ingest the oil. This can be fatal and/or deadly in the short or long term.
When two heterozygous individuals are crossed with two different traits, the ratio will always be 9:3:3:1. The 9 will be the 2 dominant alleles so the answer is A.