2 Happy Monday! Bellwork: February 17 Copy the 2 sentences and underline key words The concept of gene flow is demonstrated when a cow is driven off from its herd, joins another herd, and reproduces. When the cow contributes to the gene pool of the new herd, which of these most likely increases?Natural selectionGenetic variationEnvironmental fitnessReproductive mutations
3 CO: I will describe the interactions between systems in plants CO: I will describe the interactions between systems in plants. I will describe the reproductive parts of a plant. LO: I will write notes. I will discuss plants with a partner. I will read about plant reproductive organs.
4 Science Fact of the Day: Fingernails grow four times as fast as toenails.
5 Anticipation Guide: Decide if the following statements are true or false with your partner Some plants are single celled organismsPlants are prokaryotic and animals are eukaryoticPlants are photosynthetic autotrophsPlants have chitin in their cell wallsPollination is a part of plant reproductionThere are carnivorous plants
6 What makes a plant a plant? PlantsWhat makes a plant a plant?Plants are eukaryoticPlants have cell walls made of cellulosePlants make their own energy through photosynthesisPlants are multicellular
7 What plants need to survive… 1. Sunlight2. Water3. CO2 & Oxygen4. Nutrient and water movement
8 Plant Parts/SystemsReproductive System = Flower (with male and female parts)Transport System = tissues in stemNutrient System = Leaf + RootStructural Support System = Stem + RootsAll of these parts and systems work together to help a plant maintain homeostasis.
9 Think-Pair-Share How do the leaves, stem, and roots work together to help a plant maintain homeostasis?
10 Is It a Stem, Leaf, Root, Flower, Fruit or Seed? Fruit/VegetablePart of PlantBroccoliCabbageCarrotCelery StalkCorn KernelGarlicOnionPotatoTomatoZucchini
11 Plant Reproductive Structure Tomorrow you will be dissecting a flower, identifying the parts, and discussing how plants interact with their environment.So let’s take a few minutes to talk about the structure of flowers…
12 Flower Parts Complete flowers have four parts. Stamen – male part, include anther and filamentAnther: produces pollenPollen: plant “sperm”, fertilizes eggsCarpel (pistil) –female part, includes stigma, style and ovary- Ovary: organ that holds egg, where fertilization occursSepals – protection for flower during developmentPetals – protection for flower as well as attracting pollinators
13 Today’s assignmentRead the article on plant structure and reproduction. Highlight or underline the key words.Complete the questions.Color the flower according to the directions.Label each flower part (ex. A=anther)This is a grade due at the end of class.
14 Bellwork: February 18 Label the parts of the flower. 7412653