Since the supercontinent Pangaea split up ~200 million years ago, the continents have remained in essentially the same positions. Do you agree?

Why the cells don't just continue to grow larger as organisms grow larger

Which of these are the main working cells of the specific immune response? A) histamines and interferons, B) antigens and antibodies, C) B cells and T cells, D) self and nonself cells

The body region typically referred to as the elbow is anatomically called

Which of the following is NOT an example of how organelles work together in cooperation to accomplish the function of a cell? A. steroid hormone response B. housing of DNA C. protein synthesis D. transport of proteins

Which structure has the least effect on the ability of a virus to infect and replicate in a host cell?

What's the function of rough er

Milo is observing the things around his family's farm. He writes down four different resources and whether he thinks they are renewable or nonrenewable. The table below shows his notes.

A baby born from a caesarian section (an operation where the baby is removed surgically from the abdomen instead of a vaginal birth) would result in:

What are body waves?

Which of these is NOT considered to be an organic substance? A) carbohydrates Eliminate B) lipids C) metals D) proteins