Seeds Honor

Nature Study

Requirements

1. What is the main purpose of a seed?

   Answer: The main purpose of a seed is the reproduction of the plant — it contains the protected embryo and the nutrients (endosperm) necessary to generate a new plant when it finds suitable conditions of water, temperature, and oxygen. The seed ensures the continuity and dispersal of the species. — The seed is a reproductive structure of spermatophyte (seed-bearing) plants that contains an embryo, nutritive reserves (endosperm or cotyledons), and a protective seed coat. It allows the plant to survive adverse conditions (drought, cold) for months or years in a state of dormancy, germinating when the environment is favorable.

2. What foods were first given to humankind in the Garden of Eden?

   Answer: In the Garden of Eden, God gave humankind as food the herbs that yield seed (cereals and grains) and the fruits that contain seed (fruits in general), according to Genesis 1:29: 'every herb bearing seed and every tree bearing fruit with seed shall be for your food.' — Genesis 1:29 establishes the original diet as vegetarian, based on cereals (seeds) and fruits. After the Fall (Genesis 3:18), God added the 'herbs of the field' (vegetables and leaves), and only after the Flood (Genesis 9:3) was meat permitted — the biblical foundation of the healthy Adventist lifestyle.

3. Identify, from a seed or a drawing of one, and know the purpose of the following: seed coat, cotyledon, and embryo (germ).

   Answer: You must identify three parts: the seed coat (the outer layer that protects the seed against physical damage, drying out, and pathogens), the cotyledon (embryonic leaves that store or absorb nutrients for the embryo), and the embryo or germ (the future plant in miniature, with a radicle, hypocotyl, and plumule). — Monocotyledonous seeds (corn, wheat) have 1 cotyledon; dicotyledonous ones (bean, pea) have 2. During germination, the cotyledon provides energy until the embryo develops leaves and performs its own photosynthesis. The seed coat absorbs water and softens so the embryo can break through and begin the growth of the new plant.

4. Know 4 different methods by which seeds are dispersed by plants. Mention 3 examples of plants that spread their seeds by each method.

   Answer: The 4 methods are: 1) ANEMOCHORY (wind) — dandelion, silk-cotton tree, maple; 2) HYDROCHORY (water) — coconut, red mangrove, water lily; 3) ZOOCHORY (animals) — burr, guava, papaya; 4) AUTOCHORY (self-dispersal by bursting pods) — bean, castor bean, pansy. — Each method is an evolutionary adaptation of the plant: anemochory favors light seeds with 'little wings'; hydrochory depends on a waterproof seed coat (the coconut floats for months at sea); zoochory uses sweet fruits or little hooks; autochory develops tension in the pod that bursts as it dries. The diversity disperses the species, avoiding competition.

5. Know 10 types of seeds that we use as food.

   Answer: You must know 10 food seeds: rice, beans, corn, wheat, soybeans, lentils, chickpeas, peas, oats, and sunflower. Each is part of the daily diet worldwide and is a source of carbohydrates, plant proteins, and nutrients essential to human health. — Seeds are the basis of world agriculture — rice, wheat, and corn provide more than 50% of the calories consumed globally. Legumes (beans, soybeans, lentils, chickpeas, peas) offer complete plant protein and fiber. Oilseeds (sunflower, sesame, flaxseed) are a source of good fats (omega-3 and omega-6).

6. Know 5 types of seeds that are used as a source of oil.

   Answer: 5 oilseeds: 1) sunflower (sunflower oil); 2) soybean (soybean oil, the most consumed in Brazil); 3) corn (corn oil); 4) flaxseed (oil rich in omega-3); 5) sesame (sesame oil, the basis of Asian cuisine). All are extracted by mechanical pressing or solvent. — Oilseeds have from 20% to 50% oil (lipids) as an energy reserve for the embryo. Brazil is the second largest producer of soybeans in the world, and sunflower and canola oil are rich sources of unsaturated fats (omega-3 and omega-6) recommended by the WHO for a healthy diet.

7. Know 5 types of seeds that are used as condiments.

   Answer: 5 condiment seeds: 1) mustard (in bread and sauces); 2) black pepper (the seed of Piper nigrum); 3) cumin (meats, feijoada); 4) fennel or star anise (teas, sweet breads); 5) nutmeg (pasta and sweets). All enhance flavor and are part of traditional cuisines all over the world. — Seed spices have been valuable since antiquity — the search for pepper drove the Age of Discovery in the 15th century. Each one contains aromatic essential oils: mustard (sinigrin), black pepper (piperine), nutmeg (myristicin). Most are used ground or whole in savory and sweet recipes.

8. Which factor cannot be missing for a plant to germinate?

   Answer: The factor that cannot be missing is WATER. Without water, the seed remains dormant indefinitely — water activates internal enzymes, softens the seed coat, hydrates the embryo, and initiates germination. Other factors (suitable temperature and oxygen) are also necessary, but water is the indispensable trigger. — The absorption of water (imbibition) is the first step of germination: the seed swells, the seed coat breaks, and enzymes such as amylase begin to break down the cotyledon's nutrients to feed the embryo. Seeds can stay dormant for decades in a dry state — water awakens the dormant life (the principle of John 12:24).

9. Make a collection of 30 different types of seeds, 20 of which you have found yourself. Identify each one with the name, date, and place where it was found, and the name of the person who found it. You may glue them onto cardboard or a card, or place them in transparent jars.

   Answer: You must assemble a collection of 30 different types of seeds, with at least 20 found by yourself in nature or in daily life. Identify each one with a label containing the name of the seed, the date and place of collection, and who found it. Present them glued onto cardboard or in transparent jars. — Collecting and cataloging is basic scientific methodology (taxonomy). Labeling with the name, date, place, and collector ensures traceability — the same standard as the herbaria of the National Museum. Transparent jars preserve small seeds; cardboard makes it easier to view the larger ones. Most can be obtained at markets, parks, and farms.

10. Plant a bean, corn, and soybean seed. Analyze how long it took each of them to germinate. Make a daily report of what happened with the plant, observing the differences between the bean and the corn.

    Answer: The bean is dicotyledonous (2 cotyledons, green leaves that appear with germination) and germinates in 4-7 days. Corn is monocotyledonous (1 cotyledon, without distinct initial leaves) and germinates in 5-10 days. The soybean is dicotyledonous and germinates in 5-10 days. The observation teaches basic botanical taxonomy.