Earths crustal bedrock at the mid-Atlantic ridge is composed mostly of

Which of these are characteristics of all three main groups of worms? Check all that apply. They lack nerve cells. They can reproduce sexually. They display bilateral symmetry. They have a single tissue layer. They are invertebrates.

Of the four bases which other base does adenine most resemble and why

Which of these is true about DNA, proteins, and the expression of genetic traits?

What happens if the hawk population increases

A bat wing an alligator leg, and a human arm and homologous structures. how does the presence of a homolous structures support one aspect of the theory of evolution?

When air exits the lungs and the diaphragm rises this is called

An organism starts out as a single cell that makes identical copies of itself. true or false

Which best decribes meiosis

The department of nursing at a local hospital is considering changing to charting by exception (CBE). Which statement provides a rationale to support making this change?

Many plants that grow in cooler climates where freezing temperatures are common have needles instead of leaves. These needles have less surface area than a broad leaf, and are coated in a waxy coating.