Q: Metabolic cooperation between different prokaryotic species often occurs in surface-coating colonies. what are these colonies called? Choices: - eukaryotes - lichens - plankton - biofilms A:
biofilms

(Question)
Q: What process is involved in the formation of a waterfall, when a stream flows from an area of harder to softer rock? Choices: - calcification - migration - evaporation - erosion A:
(Answer)
erosion

Ques: Q: The active site can only bind certain what? Choices: - electrons - membranes - proteins - substrates A:
Ans: substrates

(Q).
Q: Shivering and adipose tissue called brown fat are used by mammals in particular to produce what? Choices: - energy - blood - nutrition - heat A:
(A).
heat

Ques:Q: What is the part of a plant whose primary role is to collect sunlight and make food by photosynthesis? Choices: - roots - stems - seeds - leaves A:

Ans:leaves

Q: What are the two types of photoreceptors in the retina? Choices: - holes and cones - circles and cones - images and cones - rods and cones A:
rods and cones