In the development of dogs, monkeys and dolphins, nourishment and oxygen are provided by the mother to the fetus through the

A. excretory system.

B. cloaca.

C. placenta.

D. both (B) and (C).

How many carbon dioxide molecules are produced during the seller respiration of glucose molecules?

Organic compounds such as carbohydrates, lipids, proteins, and nucleus acids are in what element

This protein can exit the cell through a process called _.

Which three substances make up each of the smaller molecules that form proteins

Can a pork roast that weighs 18 grams feed a family of four

Why should people not make changes in their diets based on the results of a single research study? What can you do to increase fiber in your daily food choices?

Animals that take in oxygen from their environment, glucose is broken down into carbon dioxide and water in a process called

2 Apply Scientific Reasoning What are some possible reasons a cell might not be able to create and deliver all the protein it needs? Come up with at least four potential reasons and discuss specific cell structures and their functions

What is likely the greatest cause of species extinctions this century

What is an ecological system consisting of all of its biotic and abiotic factors? A) community B) ecosystem C) habitat D) pure culture