Filtration, Reabsorption, Secretion: The Three Steps of Urine Formation. The kidneys filter unwanted substances from the blood and produce urine to excrete them. There are three main steps of urine formation: glomerular filtration, reabsorption, and secretion.
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A birds beak helps you identify its habitat by looking at its size and shape. The size and shape will give you an idea of what type of food it eats. A bird will have a beak that is suited for eating food that they find in their habitats such as seeds, nectar, insects, mice or fish. For example, pelicans live close to the ocean. Their beaks are long and they have a pouch in their throat. They catch fish by gulping them out of the water into their throat pouch. If you ever been to Daytona Beach this is a familiar sight. Not something you would see sitting on a park bench in Central Park! Hmmmm <span>sighnoah</span> THANKS!
<span>Although the amount varies based on age and gender, generally the human body is made up of about 60% water. Most of this water is stored in our cells, which require water to live, function, and divide. The rest of the water is found in various other parts of our body, such as our bladder.</span>
During Prophase chromosomes condense, and mitotic spindle form, chromosomes are copied, and the nuclear membrane disappears, spindle fibres pull the sister chromatids apart.
Explanation:
Prophase is divided into 2 sub-phases as early Prophase and late prophase.
Early Prophase:
In early prophase distinct thick chromosome like structures, Centrioles move to the opposite poles and, nuclear membrane disappears
By late prophase:
Astral rays and spindle fibres are formed. Spindle fibres attach to the chromosome. Contractions occur in the attachment and sister chromatids are pull apart towards the equator.
Metaphase will follow the prophase.
