I think maybe in a place where the temperature is just fine, where there is humidity and air and etc lol
Answer: Forming the embryo and providing DNA.
Explanation: The egg is a cell that is used to reproduce. It is the very beginning of what will become the embryo and eventually the baby. The sperm fertilizes the egg and contributes 50% of the embryo DNA to the ova (the other 50% of DNA comes from the egg, however sperm only contributes DNA to the egg during the fertilization process whereas the egg has a much more important role). The sperm and egg meet, the egg becomes fertilized and loaded with the DNA it needs to form. The egg provides nutrients needed for the embryo to grow until it is fully gestated.
Answer:
The process illustrated in the diagram is the non light dependent reactions of photosynthesis termed as Calvin Cycle.
Explanation:
- Two molecules of 3-phosphoglycerate (3-PGA) are produced or released from step one to step two of Calvin cycle.
- The source of energy that helps to start step one are ATP and NADPH, mainly derived from the light dependent reaction.
- The oxygen molecule thus formed by splitting of water is release to the nature as oxygen, which living organisms utilizes in respiration.
- Carbon dioxide comes from the atmosphere to start the process.
- Light reactions occurs in the thylakoid membranes of the plant organelles namely chloroplasts.
- Non-light dependent reaction or Calvin cycle takes place in the stroma chloroplasts.
Answer: The NEGATIVE CONTROl is the test tube that is filled with ONLY distilled water.
Explanation:
A negative control of an experiment is carried out alongside the main primary experiment except that the treatment is changed to something that is predicted to have no result. In the negative control, the student does not expect any response. This would help the student compare the result of a new experiment against an already known existing results.
Analysing the experiment carried out by the student, She filled two test tubes with distilled water and placed a piece of Elodea in one of the tubes, leaving the other without a plant. The other test tube that contains only distilled water is the negative control because she wasn't expecting any result from it. It's also served as a control sample to the primary experiment. This is observed as she blew in each tube to add carbon dioxide, which caused the distilled water to become more acidic. This would help the student know that the that experimental results are valid and to ensure that time is saved.
