Only need the answers to the questions, no explanation needed. Thank you!

Question 31 (2.5 points)
When was the “age of the amphibians”?
Question 31 options:
A. middle Silurian period
B. late Cretaceous period
C. early Carboniferous period
D. middle Devonian period
 

Question 32 (2.5 points)
What did some of the earliest jawless fishes have that hagfishes and lamprey do not?
Question 32 options:
A. scales of bony armor
B. paried lateral appendages
C. vetebral column
D. forked tails
 

Question 33 (2.5 points)
Humans lose the most water to their environment through
Question 33 options:
A. conduction
B. osmosis
C. evaporation
D. radiation
 

Question 34 (2.5 points)
Tapeworm parasites of humans can sometimes be transmitted by
Question 34 options:
A. a mosquito bite
B. eating undercooked pork, beef, or fish
C. exposure to bat guano
D. drinking unpasteurized milk or juice
 

Question 35 (2.5 points)
What are the specialized structures called where nitrogen fixation takes place by bacteria interacting with plant roots?
Question 35 options:
A. rhizobia
B. hyphae
C. nodules
D. sheaths
E. rhizospheres
 

Question 36 (2.5 points)
Which of the following is a significant difference between leeches and other annelids?
Question 36 options:
A. chaetae formed into spikes to penetrate skin and posterior gonad development
B. incomplete digestive system and hermaphroditic reproduction
C. lack of chaetae and development of suckers at the anterior and posterior ends
D. heterotrophic energy utilization and aquatic habitat
 

Question 37 (2.5 points)
Why do coniferous plants growing in cold climates have needle-like leaves?
Question 37 options:
A. keep away herbivores
B. closer packed together to keep warm
C. reduce water loss
D. minimize heat loss
 

Question 38 (2.5 points)
The largest salivary glands, which produce watery fluid, are
Question 38 options:
A. sublingual glands
B. submandiubular glands
C. parotoid glands
 

Question 39 (2.5 points)
Leeches belong to the class ________.
Question 39 options:
A. Polyplacophora
B. Polychaeta
C. Bdelloidea
D. Oligochaeta
 

Question 40 (2.5 points)
Which of the following are the most important factors in forming pores in soils?
Question 40 options:
A. weathering patterns
B. living organisms
C. particulate sizes
D. climate influences