Insect wings may have begun to evolve as lateral extensions of the body that were used as heat dissipaters for thermoregulation.
When they had become sufficiently large, these extensions became useful for gliding through the air. Additional selection refined them as flight-producing wines. If this hypothesis is correct, modern insect wings would be an example of _ .58) A) an adaptive radiation B) mutations C) the loss of Hox genes in the evolution of new form D) an exaptation
Evolution is the process of the the change in the characteristics of the species with respect to time. Natural selection, mutation and genetic drift is important for the evolution.
Exaptation may be defined as the biological phenomena that describe the development of the trait that has been co opted or co evolved other than the trait that has been selected for the natural selection. The flight producing wines is the extra trait that has been developed in the insects.
In a long bone, the epiphyseal is the growing region. In young bones, bone formation occurs in a layer of hyaline cartilage. The epiphyseal plate forms cartilage on the epiphyseal end. Cartilage is calcified on the diaphyseal side, and the diaphysis lengthens.
The nerve cells are scattered in each layer of the body wall and these neurons send information from sensory organs. Based on the given choices above, the organism that has a nerve net that allows it to respond to a stimulus in a coordinated way is the HYDRA.
Industries cause enormous water pollution: By directly discharging their untreated effluents into water bodies like rivers and lakes. By letting their polluting effluents flow onto land so that they get absorbed into the soil and pollute underground water.
Tracheids and vessels are two water conducting hollow tubes present in the vascular tissue called is xylem. Xylem in a plant is responsible for transporting water from the roots to other parts of the plant.
