In which trimester does the following occur? the placenta begins absorbing nutrients and oxygen from the mother's body

Most children can understand abstract symbols and solve complex problems by the .

I am unsure but that sounds like the 2nd trimester but I might be wrong

1.)dr. natterson- horowitz came to realize that their isn't much of a difference between animals and humans. just like humans, animals can suffer from illnesses and diseases like breast cancer, self injury, anxiety, and many more. she also discovered how they even treated and performed surgical procedures on animals just as if the animal it self were human. the los angeles zoo called dr. natterson- horowitz because they knew that she was a doctor and that  she would be able to recognize what was wrong with the gorilla. they knew that humans and gorillas were similar, so instead of calling another veterinarian, they called a doctor.