Which TWO phrases describe the contents of a chromosome?

A. A single gene

B. Many genes

C. Many DNA molecules

D. A single DNA molecule

2. What is the percent chance of a resulting plant having white flowers?

Rerouting a river would have no effect on which group?

Which of the following is an example of how scientist might use a model

What is the second major source of elements in seawater? a.-Earths interiorB.-MeteoritesC.-LakesD.-Solar radiation

Which of these groups of animals are endanger? ill give you brainliest. A) dinosaurs B) mice C) sea turtles D) Killer whales

Which behavior was most likely inherited rather than learned? A. a student writing his name on a piece of paper B. a dog begging for food at the dinner table C. a chimpanzee using a stick as a digging tool D, a camel seeking shelter from the hot sun

Which soil would you expect to be better developed the soil on a hillside or on a valley floor

Most cells of the human body directly receive a variety of endocrine secretions through the activity of which system Select one: a. reproductive system b. digestive system c. circulatory system d. nervous system

Identify which questions can be answered through science and which cannot.

Two rows of transition metals are placed at the bottom of the periodic table to save space. elements in the first row are called what