How many peptides can we form with the arginine, tryptophan, cysteine and valine?

You are asked to estimate the number of species in a 1-hectare section of panamanian tropical forest. after a week you have identified 142 plant species.

How long does it take for a nuclear weapon to explode?

A 75-year-old female asks to talk to the nurse about how to maintain safe and satisfying sexual relationships. what is the nurse's best response

What is a galaxy? Describe three different shapes that a galaxy may have. List the common components of a galaxy.

Which of the following is not true about the cell membrane? Phospholipids are fluid and can move throughout the membrane. Carbohydrates are useful in cell communication. Protein receptors are found on the exterior of the cell only.

Which has more kinetic energy, a feather floating through the air or a rock on the ground?

The topmost zone near the shore of a lake or pond is the living are food for other creatures such as turtles, snakes, and ducks zone. The species A. Olimnetic B. Profundal C. littoral D. none of the above

In a food web, a bird eats plant-eating insects but also eats berries, where does the bird fit in the food web? a. both as a primary and secondary consumer b. as a primary consumer c. as a secondary consumer

In order to build the dipeptide, water was removed and smaller molecules were joined o make a larger molecule. What is the name of this chemical process?

Iodine solution is added to a cake solution. The color changes to purple. Based on this result, what biological molecules are present in the cake solution?