Which of the following pairs of characteristics would be best to begin using when creating a dichotomous key for a fish, a lion, a wolf and frog? 1a. has eyes
b. has no eyes

1a. has a mouth
b. has no mouth

1a. has nostrils
b. has no nostrils

1a. has fur
b. has no fur

the answer would be

1a. has fur

b. has no fur

Explanation:

I took the test and got it correct

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

feral cats are estimated to eat tens of millions of native animals each night in australia