Answer:
50
Explanation:
egg cells and sperm cells contain half of the chromosomes of a regular cell in an organism, so the number of chromosomes in a heart cell must be double of the chromosomes in a egg cell.
An inference draws conclusions based on evidence gathered through observation. The conclusion is reached logically on the basis of facts known to be true or assumed to be true. An inference can be seen as an interpretation of what is observed. An inference is an element of reasoning, an act of thinking.
Answer:
Level 1...Plants and algae make their own food and Plants and algae make their own food and are called producers.
Ozone, which is also known as trioxygen, is a chemically bonded compound, and contains three oxygens.
Answer:
By identifying the bones as being homologous structures and by proposing that humans, bats, and dolphins share a common ancestor.
Explanation:
