Which of the following macromolecules are polymers?

a

lipids

b

carbohydrates

c

nucleic acids

d

proteins

e

all the choices are polymers

In addition to testing shmoo formation in the two mutant strains of yeast, the scientists also tested shmoo formation in wild-type yeast. What is the purpose of including wild-type yeast cells in the experiment?

What are ways you think scientists and engineers have to design and communicate with spacecraft and rovers to deal with the delay in signal time?

Carbon forms many complex molecules because it has

A group of students is counting the number of plastic bags placed in a landfill during a single day. what are the students doing? A. starting a promblem b. drawing a conclusion c. making a hypothesis d. collecting data by the way this is ecology!

In 1999 confusion between the use of the English and metric systems resulted in the loss of the Mars Climate Orbiter, which was intended to study that planet's water history. How could costly mistakes like this be avoided in the future?

What is a tough and rigid layer that surrounds plant cells as well as some algal bacterial cells

Which of the following statements about natural selection is TRUE? A. Natural selection results in those individuals within a population who are best-adapted surviving and producing more offspring. The traits that promote survival are heritable. B.

Explain how temperature and salinity affect the formation of deep currents.

What substance is added during hydrolysis in order to break down food macromolecules?

What would happen if grasses and shrubs were removed from an ecosystem? A. the primary consumers would increase B. the primary consumers would become secondary consumers C. the primary consumers would die out or move elsewhere D.