Which two substances are among the four major types of organic compounds made by living things?
D A. Proteins
O B. Potassium
Oc. Carbohydrates
D. Water

If assuming tasting ptc as a simple gene trait, what other genotype would you select to put in this missing genotype box that could result in this phenotype

The negative impacts of nonnative species generally outweigh the positive impacts

This is the main structural axis of the plant that supports leaves, flowers and fruits; transports fluids; stores nutrients and produces new tissue.