Light energy arrives at Earth in little packets called ________.

A. photons
B. light waves
C. rays
D. wavelengths


Answer: A

Biology & Microbiology

You might also like to view...

Which of the following tropisms is the

response to touch in plants?

a. gravitropism b. phototropism c. thigmotropism d. mechanotropism e. chemotropism

Biology & Microbiology

If an anticodon was AUG, what would the

corresponding nucleotides on DNA be?

a. TAC b. ATG c. UAC d. AUG e. CGT

Biology & Microbiology

These are the simplest animals and are diploblastic, which means that they only have two layers of cells, an outer layer and an inner hollow layer that is involved in gathering food. 

A. Mollusca B. Annelida C. Jellyfish D. Arthropoda

Biology & Microbiology

Which of the following cells engulf antigens and present fragments of them on their own surfaces for recognition?

a. plasma cells b. T lymphocytes c. NK cells d. dendritic cells

Biology & Microbiology