Ovules - Study guides, Revision notes & Summaries

Flowers - specialized structure for sexual reproduction, pollination by animals (insects, mammals, birds) and wind Seed - consists of an embryo and nutrients surrounded by a protective coat. Gametophytes of seed plants - develop within the walls of spores that are retained within tissues of the parent sporophyte The ancestors of seed plants were most likely_____, while seed plants are ________. - homosporous; heterosporous Ovule - consists of a megasporangium, megaspore, and one or more p...

Agritechnology study guide with 100% correct answers Flower male parts stamen, filament, anther anther manufactures pollen Flower female parts Pistil (stigma, style, ovary) stigma recieves pollen Ovary contains ovules which are eggs oppurtunity cost what you give up to get something else as production of a product increases the cost to produce this product increases as well in 2006, we spent 5.7% of income on food 90% of our perishable food is shi...

BIOL 198 Module 6 Objectives Examine the symbiotic interaction of algae and fungi - answerLichen is a relationship between fungi & autotrophs Algae make food & fungi gives it a home Role of lichens - answerThey break down soil for the next organism Characteristics of algae - answerEukaryote Has cell wall, single & multi cellular, nucleus, mitochondria, autotrophic, aquatic Role of algae - answerPrimary producer, makes CO2, carbs Food source for fish Understand the evidence supporting th...

BIOL 198 Module 6 Objectives Examine the symbiotic interaction of algae and fungi - answerLichen is a relationship between fungi & autotrophs Algae make food & fungi gives it a home Role of lichens - answerThey break down soil for the next organism Characteristics of algae - answerEukaryote Has cell wall, single & multi cellular, nucleus, mitochondria, autotrophic, aquatic Role of algae - answerPrimary producer, makes CO2, carbs Food source for fish Understand the evidence supporting th...

what are theca? - The typical anther is bilocular, i.e. it consists of two thecae. Each theca contains two microsporangia What are microsporangia? - Are the pollen sacs. Microsporangia produce the microspores, which for seed plants are known as pollen grains How many theca and sporangia are part of each anther? - Theca: 2 Microsporangia: 4 What separates the two theca? - A longitudinal groove What are the pollen sacs lined with? - tapetum cells What are tapetum cells? - Nutrition...

PBIO Exam 2 Question and answers 2023/2024 verified to passThe transfer of pollen from the anther to the stigma is called? - correct answer Pollination The study of pollen is called? - correct answer Palynology The source of nutritive tissue for a growing plant (corn, wheat) and for much of the development of human civilizations is the - correct answer Endosperm Which of the following statements about pollinators is true? - correct answer A decline in pollinator populations is partly d...

Trends in Plant Evolution Chlorophyta ancestor -ANSWER ancestor of modern land plants: - Spores produced in tetrads - Parental plant retains fertilized egg - Alteration of generations: haploid gametophyte & diploid sporophyte -Biochemical similarity: chlorophylls & starch Trends in Plant Evolution Vascular tissue -ANSWER -Lower devonian --first fossil evidence of vascular tissue and stomates -Mid devonian --evidence of secondary xylem - Protogymnosperms: secondary growth and seed ...

Difference between Plant and Animal Life cycle? Ans: Plant(more complex): Start off with a diploid (2 chromosome sets) after the young individual organism undergo meiosis and then we produce haploid (1n) spores then they undergo mitosis that produces a gametophyte (something that is multicellular). Male side we have pollen and female side we have an egg in haploid structure. 2n forms in zygote. Animals: 2n to n and there is meiosis that directly results in fromation of gemtes. What par...

The transfer of pollen from the anther to the stigma is called? correct answer: Pollination The study of pollen is called? correct answer: Palynology The source of nutritive tissue for a growing plant (corn, wheat) and for much of the development of human civilizations is the correct answer: Endosperm Which of the following statements about pollinators is true? correct answer: A decline in pollinator populations is partly due to loss of habitat Which of the following plant parts ...

practice exams for the final Hp| Questions and Answers With Complete Verified Solutions, Updated 2024. How are two different species most likely to evolve from one ancestral species? allopatrically, after the ancestral species has split into two populations Fossils of their most recent common ancestor are most likely to occur in which stratum? the layer that is directly below the labeled X The various taxonomic levels (for example, phyla, genera, classes) of the hierarchical classificatio...