Which level would describe a dogs eye

Why does a block of metal sink in water but the same size block of wood float? The molecules in the metal are closer together than the molecules of the wood. The metal is more compact.

You are assessing a pregnant woman whose chief complaint is vaginal bleeding. she is 8 months pregnant and has moderate, bright red bleeding. she says that her doctor was concerned about the location of the placenta. this condition is known as:

Which of the following is not a characteristic of a tetrad? A. It exists only during meiosis I. B. It contains two pairs of identical chromatids. C. It contains a pair of homologous chromosomes. D. It has only the haploid number of chromosomes.

Why wont traits be found at 100% frequency with each other in offspring even though they are all on the same chromosome?

What is the brain made of

Which product is formed during the metabolic reactions of cellular respiration?

What does it mean when plants and fungi are inmobile?

What is another name for inherited advantageous characteristics

Nearly all organisms on earth carry out some form of glycolysis. How does that fact support or not support the assertion that glycolysis is one of the oldest metabolic pathways?

What are other names for bio molecules?