Answer:
espero que te sirva
Explanation:
El número de animales salvajes que viven en la Tierra va camino de disminuir en dos tercios para el año 2020, según el informe Planeta Vivo de WWF, en el que se señala que la extinción parcial de especies está destruyendo el sustento biológico del que depende la humanidad. Este informe, el más completo realizado hasta la fecha, indica que las poblaciones de animales se desplomaron en un 58% entre 1970 y 2012 y todo apunta a que esta pérdida podrá alcanzar el 67% en 2020.
This might be wrong and i am sorry if it wrong but i think it is A. a planet that produced flowers and seeds on tall stalks and i am sorry again if its wrong
The answer is called respiration. Hope this helps.
Answer: Large molecules and wastes move through the membrane through forms of active transport- endocytosis and exocytosis.
Explanation:
Molecules are moved across the cell membrane via different mechanisms like diffusion, facilitated diffusion and passive transport; however, some very large molecules require specialized types of active transport to cross over- these are endocytosis and exocytosis.
During endocytosis large molecules cells and cell fragments moved across the plasma membrane through a process of <em>invagination;</em> piece of the external cell membrane falls into itself and forms a small pocket that surrounds the target molecule this breaks off from the membrane to form an intracellular vesicle. Different methods of endocytosis such as <em>phagocytosis, pinocytosis </em>and receptor-mediated <em>endocytosis</em>, take in cells, water and targeted substances respectively.
Like endocytosis, the particles (signal proteins, neurotransmitters and waste material) are surrounded by a phospholipid membrane. However, in exocytosis, this membrane is formed in the cytoplasm, and merges with the plasma membrane’s interior in a process <em>opposite to </em>endocytosis; material is removed from the cell and exported into the cell’s exterior called the extracellular space.
The correct answer is B) Prairies wind erosion usually happen in deserts and coastal sand dunes and beaches, certain land conditions will cause wind erosion in agricultural areas.
