Brood size Brood size
Brood size is defined as the number of live offspring that are laid and hatch frhon eggs in birds. In a particular species of bird, brood
size is genetically determined. Figure 1 shows the brood size for a species of nesting bird. Figure 2 shows the frequency of brood size
for the same species of bird twenty generations later. Which statement is supported by the data? You may select ALL that apply.

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.

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

b a mature ovary of a plant.