Define the nucleus of an atom

Through which of the following media can sound waves travel? A. air and solids only B. air, water, and solids C. air and water only D. water and solids only

If an organism of unknown genotype is crossed with a homozygous recessive organism and half of the offspring show the dominant phenotype and the other half of the offspring show the recessive phenotype, then the unknown genotype must be: • O A.

The tar in cigarette smoke contains chemicals that contribute to the development of

Does an earthworm have an open or closed circulatory system explain

What is Alterations in various aspects of society over time called?

When pea plants from a pure-breeding strain with purple flowers are crossed with pea plants from a pure-breeding strain with white flowers, the F1 offspring all have purple flowers.

Only specialist species are well adapted to their native habitats.

In the human population there are 3 alleles that control blood type. alleles a and b are codominant, while allele i is recessive to both alleles a and b. a person who is homozygous in the ii allele has blood type o.

Quality of life is strictly connected to the choices we make on a daily basis in regards to our lifestyle. a. True b. False

Wich factor allows earth to hold onto liquid water