The scientific method uses observation and which other process to answer questions

A scientist compared the genes and proteins from a root cell and a leaf cell of a single apple tree. What will the scientist observe about the cells?

The process that produces similar-looking structure is unrelated groups of organisms?

A ___ star has a greater temperature than a ___ star A) blue, red B) red, blue C) red, yellow Eliminate D) yellow, blue

In comparing a desert to a marsh, which statement is not true? 1. A desert has more biodiversity than a marsh. 2. Many organisms in deserts and marshes exhibit convergent evolution. 3.

Stress at a divergent plate boundary

Why are there so few aquatic plants and phytoplankton that live at the bottom zones in the ocean? a. the ocean floor contains many de composers b. most sunlight is absorbed before reaching these levels c. water is limiting factor d.

Which of the following is not a property of a base? Feels slippery to the touch Changes red litmus to blue Has a sour taste Produces OH - ions

Two cats are mated. one of the parents cats is long haired (recessive allele). The litter which results contains two short haired amd three lomg haired kittens. What does the secon parent look like, and what is its genotype?

The blood in the lungs contains less oxygen and more carbon dioxide than the air. explain why oxygen moves from the air to the blood and carbon dioxide from the blood to the air

What do all plant life cycles have in common?