Atmospheric oxygen increased after the evolution of photosynthetic prokaryotes.

GLUT4 transporters are a. stored in cytoplasmic vesicles and found in adipose and skeletal musles b. only found in adipose and skeletal muscles c. only inserted into the plasma membrane by endocytosis d. only stored in cytoplasmic veesicles

How are monomers related to polymers.

A mineral is classified as a ore as long as?

Choose the correct option for Pepsin a) Splits proteins at pH of about 3 b) Splits Carbohydrates at about pH 2 c) Splits protein into peptones at pH 7 d) Changes protein into amino acids at pH 2

The mythical Red Bluebird controls its feather color with a single allele. They can be blue (dominant) or red (recessive). What are the phenotypes of the offspring? A. all blue B. all red C. half blue, half red D. all purple

1. Springs form where groundwater sinks into the soil there is no water table the water table intersects the ground surface flooding makes streams overflow their banks

Bio 254 - Pre-Class Assignment 1 Fill in the blanks 1. The "first line of defense" in innate immunity is 2. Histamine kinins, and interleukins are examples of

The three major body regions of crustaceans are

What is the independent variable? A. The height of the plant B. The intensity of the light C. Sunlight D. The color of the light

True/False: Coronavirus is symptomatically similar to the flu, but not nearly as fatal