Answer:
Animals making the territory with example Lion, Tiger, hyena among others
Explanation:
Animals marks their territory through secretion of pheromones, some makes sound, it is a form of behavioral act that allows to protect ones territory or boundary
La Biología Viene Siendo Una Ciencia Que Estudia El Origen De La Vida Si Evolucion Sus Propiedades Y Sud Cuidados También Describe las Características Y Comportamiento De Las Especies De Todo El Mundo
El turismo Biologico :Es Una Propuesta para El Viajero Interesado por Conocer Los Componentes Naturales De Algún Lugar Como La Fauna Y La Flora
Answer:
Why are embryos used in medical research?
Stem cells can be obtained at the early stages of embryo development; these cells are called human embryonic stem cells (hESC). They also could be used in research to develop drugs to treat serious diseases, or to repair organs following a stroke or heart attack.
Yes it is absolutely true that each lung is fed oxygen by a separate bronchus. There are actually two lungs and two bronchi. Each of the two lungs are safeguarded by the two ribcages as
they are placed within the rib cages. The lungs actually consists of elastic
sacs that contract and expand for taking in and releasing air. This way oxygen
is passed into the blood and carbon dioxide is taken out from the blood and
passed out. This is also the main function of the lungs.
