Q: Scientists use what scale to illustrate the order in which events on earth have happened? Choices: - ecological succession - fossil record - cataclysmic time scale - geologic time scale A:
geologic time scale

(Question)
Q: What does the presence of gill slits suggest about humans and fish? Choices: - Shared History - Common Cells - Same evolutionary chain - common ancestor A:
(Answer)
common ancestor

Ques: Q: Restoring nitrogen to the soil is one reason for what agricultural practice? Choices: - irrigation - plowing - sowing - crop rotation A:
Ans: crop rotation

(Q).
Q: What are organelles made of protein and ribosomal rna (rrna)? Choices: - electrons - carbons - chromosomes - ribosomes A:
(A).
ribosomes

Ques:Q: Where does the krebs cycle take place? Choices: - in the nitrogen - in the ozone - in the beam - in the matrix A:

Ans:in the matrix

Question: Q: What takes place in the organelle known as the chloroplast, which distinguishes animal from plant cells? Choices: - digestion - reproduction - perspiration - photosynthesis A:
Answer:
photosynthesis