What’s the role of oxygen in cellular respiration

Answer:

Gas, solid and liquid.

Explanation:

The matter exist in its well defined state. Three main states of matter are solid, liquid and gas. Different matters exist among three states in this universe.

Th solid particles are tightly packed together and has little space between them. The gases particles are far away from each other. The liquid particles are less closely packed together than solid but less than gases. Gases has highest space between them and can move easily, then liquid and least speed is of solid particles.

Thus, the answer is gas, solid and liquid.

Here's an answer to the first question:

Day 1:

Today, I was born on the anther of a beautiful orange flower. The anther is the part of the stamen that produces pollen grains like me. I am very tiny and round, and I have a hard coat to protect me from drying out. I have a lot of brothers and sisters, and we all live together on the anther. We are waiting for a pollinator to come and pick us up.

Day 2:

Today, a pollinator came to visit our flower. It was a big and fuzzy bee, and it landed on the anther. It started to collect some of us with its legs and mouthparts, and put us in a special pouch on its abdomen. It was very exciting, but also scary. I wondered where it would take us. The bee flew away from our flower, and headed towards another flower.

Day 3:

Today, the bee landed on another flower. It was a purple flower, with a green stem and leaves. It looked very different from our orange flower, but it was also very pretty. The bee started to rub some of us off its pouch onto the stigma of the purple flower. The stigma is the part of the pistil that receives pollen grains like me. I was one of the lucky ones who landed on the stigma. I felt a sticky substance that helped me stick to it.

Day 4:

Today, I started to grow a tube from my coat. This is called the pollen tube, and it is how I can reach the ovary of the purple flower. The ovary is the part of the pistil that contains eggs. I have to fertilize one of these eggs, so that a new seed can be formed. The pollen tube grows through the stigma and down the style, which is the stalk that connects the stigma and the ovary.

Day 5:

Today, I reached the ovary of the purple flower. It was dark and moist inside, and I saw many eggs waiting for me. I chose one of them, and entered it with my tube. This is called fertilization, and it is when a pollen grain like me combines with an egg to form a zygote. The zygote is the first cell of a new plant. I felt very happy and proud, because I had completed my journey.

Day 6:

Today, I am no longer a pollen grain. I am part of a new plant, that will grow from the seed that was formed by me and the egg. The seed will develop inside the ovary, which will become a fruit. The fruit will protect the seed until it is ready to germinate and grow into a new plant. The new plant will have some traits from me and some traits from the egg, because we are from different flowers of the same species. This is called cross-pollination, and it is how plants can create genetic diversity.

Here's the answer to the second question:

The sepal is the green part at the base of the flower that protects the bud before it opens. I labeled it with the letter A.

The petal is the colorful part of the flower that attracts pollinators. I labeled it with the letter B.

The pistil is the female part of the flower that consists of the stigma, style, and ovary. I labeled it with the letter C and the symbol ♀️.

The stamen is the male part of the flower that consists of the anther and filament. I labeled it with the letter D and the symbol ♂️.

The pollen is the yellow dust-like substance that is produced by the anther and carries the male genetic material. I labeled it with the letter E.

The ovary is the part of the pistil that contains the eggs or ovules. I labeled it with the letter F.

The eggs are the female reproductive cells that are fertilized by pollen to form seeds. I labeled them with the letter G.

Explanation:

- Leaf: The leaf is a flat, green part of the flower that usually grows on the stem or branch. It helps the plant make food through a process called photosynthesis.

- Blade: The blade is the broad and flattened part of the leaf. It is the main area where photosynthesis takes place.

- Midrib: The midrib is the central vein or rib of the leaf. It provides support and helps in transporting water and nutrients to the leaf.

- Petiole: The petiole is the stalk that connects the leaf to the stem. It provides support and allows the leaf to get water and nutrients from the stem.

- Root: The root is the part of the plant that grows underground and anchors the plant in the soil. It also absorbs water and nutrients from the soil.

- Stem: The stem is the main structural support of the plant. It holds up the leaves, flowers, and fruits, and also transports water, nutrients, and sugars between the roots and the rest of the plant.

- Terminal bud: The terminal bud is a bud located at the tip of the stem. It contains developing leaves, flowers, or shoots.

- Lateral bud: The lateral bud is a bud located on the sides of the stem. It can develop into branches, leaves, or flowers.

- Flower: The flower is the reproductive part of the plant. It usually has colorful petals and produces pollen and nectar to attract pollinators like bees or butterflies.

I hope this helps! Let me know if you have any other questions.