Billy Laise

University of South Carolina - Columbia
Biology Teacher

Biography

I graduated early from the University of South Carolina with a B.S. in Marine Science. I decided to pursue teaching and got a Masters in Secondary STEM Education from the University of Kentucky. I chose teaching because I believe science isn't being taught correctly in the frame of a phenomena. I think the future of education is online and that this is just another way for me to try and help those who struggle with the subject. I am very passionate about teaching and helping those in need, so I really never run out of talking material for biology or marine science.

Education

BS Marine Science
University of South Carolina - Columbia
MA Secondary STEM Education
University of Kentucky

Educator Statistics

Numerade tutor for 6 years
34 Students Helped

Topics Covered

Discover the Power of the Cell: Unleash Your Potential with Our Products
Survival of the Fittest: Life Through a Darwinian Approach
The Fascinating History of Life: From Origins to Present
Discover the Differences Between Bacteria and Archaea
The Fascinating Chemistry of Life: Discovering the Building Blocks
Mastering Metabolism 101: A Beginner's Guide
The Importance of Understanding the Cell Cycle for Cellular Reproduction

Billy's Textbook Answer Videos

05:07
Biological Science

True or False: Sodium-potassium ATPase pumps move three sodium molecules out of a cell in exchange for two potassium ions, establishing an electrochemical gradient.

Chapter 43: Water and Electrolyte Balance in Animals
Billy Laise
05:18
Biological Science

Which one of the following statements is true of fishes that live in freshwater?
a. The environment is isosmotic with respect to their tissues. As a result, they do not require a specialized organ to maintain water and electrolyte balance.
b. They lose water to their environment primarily through the gills. They replace this water by drinking.
c. Water enters epithelial cells in their gills via osmosis. Electrolytes leave the same cells via diffusion.
d. They have specialized cells that actively pump $\mathrm{Na}^{+}$ and $\mathrm{Cl}^{-}$ from blood into epithelial cells, so the ions can be excreted.

Chapter 43: Water and Electrolyte Balance in Animals
Billy Laise
06:13
Biological Science

Which of the following organisms would lose the most water by osmosis across its gills?
a. marine bony fish
b. shark
c. freshwater bony fish
d. freshwater invertebrate

Chapter 43: Water and Electrolyte Balance in Animals
Billy Laise
08:00
Biological Science

Which of the following gives the correct sequence of the regions of the nephron with respect to fluid flow?
a. distal tubule $\rightarrow$ ascending limb of loop of Henle $\rightarrow$ descending limb of loop of Henle $\rightarrow$ proximal tubule $\rightarrow$ collecting duct
b. ascending limb of loop of Henle $\rightarrow$ descending limb of loop of Henle $\rightarrow$ proximal tubule $\rightarrow$ distal tubule $\rightarrow$ collecting duct
c. proximal tubule $\rightarrow$ ascending limb of loop of Henle $\rightarrow$ descending limb of loop of Henle $\rightarrow$ distal tubule $\rightarrow$ collecting duct
d. proximal tubule $\rightarrow$ descending limb of loop of Henle $\rightarrow$ ascending limb of loop of Henle $\rightarrow$ distal tubule $\rightarrow$ collecting duct

Chapter 43: Water and Electrolyte Balance in Animals
Billy Laise
08:47
Biological Science

What effect does antidiuretic hormone (ADH) have on the nephron?
a. It increases water permeability of the descending limb of the loop of Henle.
b. It decreases water permeability of the descending limb of the loop of Henle.
c. It increases water permeability of the collecting duct.
d. It decreases water permeability of the collecting duct.

Chapter 43: Water and Electrolyte Balance in Animals
Billy Laise
03:47
Biological Science

Fill in the blank: In Gila monsters, the organ in which water from urine is reabsorbed into the bloodstream is the _______.

Chapter 43: Water and Electrolyte Balance in Animals
Billy Laise
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