Que tipo de respiración tienen los peces? que tipo de respiración tienen las Aves y mamíferos?
la respiración traqueal es característica de ?
que tipo de respiración presentan los anélidos?
porfaa, lo necesito para el lunes

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.