The simplest animals, lacking true tissues, are the

When Lucy was only a fertilized egg, what did the cell have to go through to get to the trillions of cells she is made up of today?

What are 4 major factors that determine weather?

Humans and apes both belong to order primates. Therefore, humans and apes must also belong to the same A. Class B. Family C. Genus D. Species

Which of the following biomolecules typically contains both nitrogen and phosphate? A - lipid B - protein C - Nucleic acid D - carbohydrate

When predators consume prey that contain a toxic material, such as mercury, they may end up with a high quantity of the material in their bodies that can affect their populations and public health if they are consumed.

You observe a tiny structure under a microscope. what question would ask and then investigate to determine whether the structure was apart of a living thing

Is the following sentence true or false? Herbaceous stems are hard and rigid and have an outer layer called bark

Which of the following is a product of photosynthesis? a. sugar b. carbon dioxide c. water d. light

These muscle cell could be best called

Amino acids are processed by the liver. Describe this process.