Las acciones humanas están alterando el delicado equilibrio ambiental. En consecuencia, yo recomendaría aplicar diferentes acciones a nivel individual para preservar nuestro planeta.
La contaminación de los ecosistemas terrestres y acuáticos está poniendo en grave peligro los ecosistemas del planeta, con lo cual es imperativo disminuir los niveles de contaminación.
Algunas de las acciones necesarias que pueden ser aplicadas a nivel individual con el fin de proteger nuestro planeta son la reducción de la contaminación mediante el ahorro de energía y la conservación de recursos naturales.
- La compra de productos ecológicos, la reducción del uso de materiales no biodegradables (por ejemplo, plásticos), el uso de medios de transporte público o la bicicleta, representan medidas contendientes a diminuir los niveles de contaminación.
- El reciclado de materiales puede también ayudar a ahorrar energía, con lo cual evitando la contaminación que resulta del proceso industrial de fabricación de manufacturas.
- Disminuir el uso de agua también es una medida para proteger nuestro planeta, ya que los organismos productores en un ecosistema (por ejemplo, las plantas) necesitan del agua para capturar y almacenar del carbono durante la fotosíntesis.
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You can tell the age of a yeast cell by (a) counting scars.
Yeast is a unicellular eukaryotic organism. It belongs to the kingdom Fungi. It is primarily used in baking, cooking and in alcohol industries as well. There are various strains of yeast and the most widely used one is <em>Saccharomyces cerevisiae</em>, also called the baker's or the brewer's yeast.
Scars on the yeast are actually the bud scars formed due to budding. Budding is the process by which the yeast reproduces and gives rise to its offspring. Hence every time a daughter bud pinches off from the yeast cell, a scar is formed.
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Venous blood from the ankle travels and goes through tibial vein, popliteal vein, femoral vein, external iliac vein, common iliac vein, inferior vena cava to the heart (right side). From the heart to the right side of the brain, blood goes through the aorta and the brachiocephalic artery. The brachiocephalic artery the then divides into the right common carotid artery and the right subclavian artery and both supply the right side of the brain.
Answer;
The similarity between gills and lungs is that both are sites for gaseous exchange in living organisms.
Explanation;
Gills is a site for gaseous exchange in fishes amphibians at some stage in life; while the lungs is a site of gaseous exchange in mammals and other organisms such as reptiles.
They both serve to bring in oxygen in the living things body and the eliminate carbon dioxide from the body; process of gaseous exchange.
However, they differ in a number of ways; for example, lungs are internal while gills are external , lungs are developed to breath in oxygen from the air, while gills are developed to get oxygen from water.
The answer is B, unicellular
