Babies typically do not show social smiles
until four to six weeks of age.
Any smiling before that time, it may not be deliberate. It's usually only a sign that the baby is
comfortable, either they just urinated or they just ate.
At
first, the baby smiles at every one but after
several months, most babies save their smiles for people they know.
The childhood and early career of Charles Robert Darwin is discussed below.
<h3><u>Explanation</u>:</h3>
Charles Robert Darwin was born on 12 February 1809 in Shrewsbury, Shropshire. He was the fifth of six children of wealthy society doctor and financier Robert Darwin and Susannah Darwin. His grandfathers Erasmus Darwin and Josiah Wedgwood were both prominent abolitionists of the recent times.
Darwin started his career as an apprentice doctor, helping his father treat the poor of Shropshire, before he started to go to the University of Edinburgh Medical School. He found the lectures dull there and in his second year at the university he joined the Plinian Society, a student natural-history group. His father then sent him for a Bachelors of Arts degree which also he couldn't peruse.
After a long fight, he went on his famous voyage on HMS Beagle around the world where he collected his data and then gave his hypothesis in his book named '' On the Origin of Species by means of Natural Selection and Preservation of the Favoured Race in the Struggle for Life''
If there was no biodiversity in a ecosystem it would indefinitely fail because in a ecosystem things have to be different
search up what your looking for after you find one copy and paste it and go back and edit the report in your own words so it looks like you didn’t plagerize
