13 is the answer its so easy
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Answer:
1) To form a multicellular organism, a zygote must divide into 16 cells which produces ball structure called a morula. After that, morula is converted into a structure called blastula.
2) Adult stem cells are responsible for the maintenance of tissues and repair the damage tissues in the body. It is also called somatic stem tissue. It increase in number through cell division.
Answer:
Eleven islands make up 95 percent of the Philippine landmass, and two of these — Luzon and Mindanao — measure 105,000 square kilometers (40,541 sq mi) and 95,000 square kilometers (36,680 sq mi), respectively.

ATP is an energy carrier that holds energy after processes like cellular respiration. The body can turn ATP into energy to do processes like physical movement later on.
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The food company’s questions are best answered by a combination of survey and scientific tools. To answer questions such as ‘which cereal's box is the best color?’ and ‘which cereal tastes the best to every eater?’ as well as ‘which cereal would sell the most boxes?’, the food company would need to conduct a survey to a group of people which resembles their target group most. The result would help them in answering those questions.
However, to answer ‘Which cereal contains the most sugar?’, the food company would need to use scientific tools to measure to sugar content in the cereal. This is the answer.