D. 1,200
This is because if it takes 1 and a half hours **1.5** to travel through city a and city b , and the plane goes 800km per hour and 400km is half of that it then the answer has to be d.
Darwin's book suggested that organisms evolve through natural selection.
The kidneys is controlled by hormones and by the composition of the urine since the hormone released is called ADH which is produced by the pituitary gland.
Answer:
Red blood cells, root hair cells in plants
Explanation:
Red blood cell: it has no nucleus. It offers the cell to carry more hemoglobin
Root hair cells in plants: they have a large cytoplasm which enables them to take water from the soil.
Eukaryotic cells are larger than prokarotic cells and have a true nucleus membrane bound organelles and rod shaped chromosomes.The nucleus houses the cells DNA and directs the synthesis of proteins and ribosomes.Mitochondria are responsible for ATP production the endoplasmic reticulum modifies proteins and synthesizes lipids and the golgi apparatus is where the sorting of lipids and proteins takes place.
