Which observation proves that a cell is a prokaryote?

a. it does not have a cytoskeleton

b. it does not have a nucleus

c. it has a cell membrane

d. it has cytosol inside the cell

Why should nasa emphasize remote sensing of the earth

Match the following terms and definitions, vestigial 1. form and structure of an organism or any of its parts 2.

Would Adenine be classified as urine or pyrimidine? Purine Pyrimidine

In order to retain heat, what occurs in the skin on a cold day? blood vessels of the dermis constrict. blood vessels of the dermis dilate. blood vessels of the epidermis constrict. blood vessels of the epidermis dilate.

What pathogen causes flu and the common cold

A scientist is conducting an experiment to test a hypothesis. If the data from the experiment does not support the hypothesis, the research is not a waste of time because - A no additional research needs to be conducted B the question was answered

Which of the following types of models is most likely to be used to predict earthquakes? a. idea model b. physical model computer model d. none of the above

What allows members of the same species to have different characteristics

Which of the following does Max represent to Feld in "The First Seven Years"? A. a chance to improve his own life B. a way to realize a dream C. an escape from a life of hard work D. a professional with solid values

Where is pyruvate made in the cell? A. Cell membrane B. Cytoplasm C. Nucleus D. Mitochondrion