Leukocytes are not limited to blood. They occur elsewhere in the body as well, most notably in the spleen, liver, and lymph glands. Most are produced in our bone marrow from the same kind of stem cells that produce red blood cells. Others are produced in the thymus gland, which is at the base of the neck.
Once your baby is past 3 months than that is no longer a newborn. But that isn't considered a toddler either yet. They are a baby up until they start to walk then they are called a toddler. Source(s): My opinion. chicken2008 Â· 6 years ago. Thumbs up. 0. Thumbs down. 0. Comment.
Most babies take their first steps sometime between 9 and 12 months and are walking well by the time they're 14 or 15 months old. Don't worry if your child takes a little longer, though.Some perfectly normal children don't walk until they're 16 or 17 months old.During her first year, your baby is busy developing coordination and muscle strength in every part of her body. She'll learn to sit, roll over, and crawl before moving on to pulling up and standing at about 9 months.on't worry if your child takes a little longer, though. Some perfectly normal children don't walk until they're 16 or 17 months old. During her first year, your baby is busy developing coordination and muscle strength in every part of her body.