Question

1. In a population with an S-shaped growth curve, after an initial period of rapid increase the number if individuals

A. continues to increase exponentially

B. drops rapidly

C. remains near the carrying capacity

D. cycles regularly

2. Sea otters eats sea urchins that feed on kelp. Sea otter is the

A. producer

B. primary consumer

C. secondary consumer

D. tertiary consumer

3. Greenhouse gases function by

A. blocking sunligh but letting out heat from Earth to outer space

B. absorbing heat that radiates from Earth that would otherwise escape to outer space

C. absorbing heat that radiates from the sun so it doesnot reach Earth

D. releasing heat that radiates from Earth into outer space

Thank you!

Answer 1

Q1 answer is A) continuos to increase expoentialy in log phase after initial lag phase.

Q2 answer is C) secondory consumer because kelp are producer and sea urchin are herbivore as well as primary consumer. If sea otters eats sea urchin then sea otters become secondory consumer.

Q3 answer is option B.

Green hous gases absorbs heat released or emmited by earth that would otherwise to eascape to outer space.

Here sun radiation abaorbs by earth.then earth emmite some heat and IR radiation .which are absorbed by the greenhous gases and all heat is trspped inside earth environmwnt.