Select the correct answer from each drop-down menu.

An element has an atomic mass number of 16 and an atomic number of 7

The element has _

protons and _

neutrons

How do birds and dogs both use DNA as instructions for building their bodies even though they are very different organisms? A. their DNA has different lengths B. their DNA have the same nucleotide bases, but in different patterns C.

Why is ATP important?

How is an aquatic ecosystem different from a land ecosystem

Why do pond organisms live in shallow water?

What are some of the reasons why Earth's resources are distributed unevenly around the world?

When does DNA replication take place

Quinn is a six-month-old baby girl who was born preterm. she now weighs 13 pounds. click on the link below to access a growth chart for infant girls.

What is the main cause of human-created mass extinction?

Earth rotates around the sun. true false

When scientists first started mapping human genes, they estimated that there were about 2 million genes. By the late 1990s, it was thought that there were only 100,000 genes, and then that number shrank to 19,000 in 2001.