Answer:
Thoracic cavity, also called chest cavity, the second largest hollow space of the body. It is enclosed by the ribs, the vertebral column, and the sternum, or breastbone, and is separated from the abdominal cavity (the body's largest hollow space) by a muscular and membranous partition, the diaphragm.
<h3>For further details and images:</h3>
- https://www.google.com/search?q=thoracic+cavity&client=ms-android-sanmu&prmd=ibnv&source=lnms&tbm=isch&sa=X&ved=2ahUKEwii__unmPTnAhWFyzgGHfGvAAsQ_AUoAXoECAwQAQ&biw=397&bih=549#
- https://www.google.com/search?q=thoracic+cavity&client=ms-android-sanmu&prmd=ibnv&source=lnms&tbm=isch&sa=X&ved=2ahUKEwii__unmPTnAhWFyzgGHfGvAAsQ_AUoAXoECAwQAQ&biw=397&bih=549#&biw=397&bih=549
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Answer:
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
Explanation:
Evolution, in genetic terms, involves a change in the frequency of alleles in a population over time. What are the sources of genetic variation? Three sources of genetic variation are mutation, genetic recombination during sexual reproduction and lateral gene transfer.
I believe its A i hope that helps
Stem cells. Or more specifically, embryonic stem cells.
Answer:
1. All cells come from other cells
2. All living organisms are made of cells
3. Cells are the basic unit of life
Of course, there are multiple ways to word the cell theory, but here is the basic definition
