Large breeds of dog are more likely than smaller dogs to have which of the following?
a) less active IGF-1
b) active IGF-1
c) 2.8 million base pairs of DNA
d) a large number of BSC fragments
e) 39 pairs of chromosomes
Ans: b) active IGF-1
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Newly hatched goslings and ducklings rapidly learn to treat any animal they see shortly after hatching as their mother. This is called filial ____ and is an adaptive behavior
Fill in the blank with the appropriate word.
Respiration
a. is only necessary for mammals. b. in most animals involves both the circulatory and respiratory systems. c. must occur over a dry surface. d. is an anaerobic process. e. is only necessary for mammals, and must occur over a dry surface
The male part of the flower is the ________
A) petal B) stamen C) carpel D) sepal
What is the most important role of bacteria in the environment?
A) as disease-causing agents B) as fungal control C) as decomposers D) as a source of restriction enzymes