SlideShare une entreprise Scribd logo
1  sur  38
Introduction:  The Scientific Study of Life ,[object Object],[object Object]
The genetic information in DNA underlies all of the features that distinguish life from nonlife ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Order and Regulation: Feedback Inhibition
Growth and Development
Ecosystem:  Energy Flow and Material Cycling
[object Object],[object Object],[object Object],BCC – 5 – 5  Sunlight energy Chloroplasts, site of photosynthesis CO 2 + H 2 O Glucose + O 2 Mitochondria sites of cellular respiration (for cellular work) Heat energy
Response to Environmental Stimuli
Asexual Reproduction – Fission
Eggs  Asexual Reproduction  – Budding; Sexual Reproduction  – Laying Eggs
Hermaphroditism
Eggs Sexual Reproduction
Figure 15.1
[object Object],[object Object],[object Object],[object Object],[object Object],THE SCOPE OF BIOLOGY
Life’s Heirachy – Organizational Levels of Life
Life’s Heirachy – Organizational Levels of Life (con’d)
[object Object],[object Object],[object Object],The diversity of life can be arranged into three domains EVOLUTION, UNITY, AND DIVERSITY
Taxonomy – Classification of Organisms ,[object Object],[object Object],[object Object],[object Object]
Domain Bacteria – Kingdom Monera
Domain Archea – Kingdom Monera
Domain Eucarya – Kingdom Protista
Domain Eukarya – Kingdom Fungi
Domain Eukarya – Kingdom Plantae
Domain Eukarya – Kingdom Animalia
[object Object],[object Object],Unity with Diversity : All forms of life have common features BCC – 4 – 1
The Cell Theory ,[object Object],[object Object],[object Object]
[object Object],[object Object],BCC – 4 – 1
[object Object],[object Object],[object Object],BCC – 4 – 1  Natural selection
[object Object],[object Object],[object Object],Evolution explains the unity and diversity of life BBC – 4 – 1
[object Object],BBC – 4 – 1  (1) Population with varied inherited traits (2) Elimination of individuals with certain traits (3) Reproduction of survivors
Evolution is based on adaptations to the environment –
[object Object],[object Object],[object Object],Living organisms and their environments form interconnecting webs
[object Object],Figure
[object Object],[object Object],[object Object],Figure
[object Object],[object Object],Figure
[object Object],[object Object],[object Object],Life in the Trees
[object Object]
[object Object],[object Object],[object Object],[object Object],Connection: Biology is connected to our lives in many ways BIOLOGY AND EVERYDAY LIFE Figure
Many technological advances stem from the scientific study of life: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Contenu connexe

Tendances

8 chap 6 (kingdom monera) f.sc 1st year biology helping notes
8 chap 6 (kingdom monera) f.sc 1st year biology helping notes8 chap 6 (kingdom monera) f.sc 1st year biology helping notes
8 chap 6 (kingdom monera) f.sc 1st year biology helping notesMary Smith
 
Bio ch01 2 (1)
Bio ch01 2 (1)Bio ch01 2 (1)
Bio ch01 2 (1)anna12435
 
Biology First Year Complete 14 Chapters
Biology First Year Complete 14 ChaptersBiology First Year Complete 14 Chapters
Biology First Year Complete 14 ChaptersSeetal Daas
 
Biology - Chp 1 - Biology The Study Of Life - PowerPoint
Biology - Chp 1 - Biology The Study Of Life - PowerPointBiology - Chp 1 - Biology The Study Of Life - PowerPoint
Biology - Chp 1 - Biology The Study Of Life - PowerPointMr. Walajtys
 
Introduction to biology
Introduction to biologyIntroduction to biology
Introduction to biologytas11244
 
Themes of bio detailed
Themes of bio detailedThemes of bio detailed
Themes of bio detailedvjcummins
 
Unifying Themes of Biology
Unifying Themes of BiologyUnifying Themes of Biology
Unifying Themes of Biologynicollearosa
 
Characteristics Of Living Things
Characteristics Of Living ThingsCharacteristics Of Living Things
Characteristics Of Living ThingsACKademic
 
Chapter1 sections 1-4
Chapter1 sections 1-4Chapter1 sections 1-4
Chapter1 sections 1-4crladerer
 
Unifying themes of Biology
Unifying themes of BiologyUnifying themes of Biology
Unifying themes of Biologymaldjuan
 
Characteristics of life
Characteristics of lifeCharacteristics of life
Characteristics of lifejjcorrea121
 
Characteristics of living things
Characteristics of living thingsCharacteristics of living things
Characteristics of living thingsJenny Dixon
 
Unifying Themes in the Study of Life
Unifying Themes in the Study of Life   Unifying Themes in the Study of Life
Unifying Themes in the Study of Life rosylingcol
 
Characteristics of life notes review
Characteristics of life notes reviewCharacteristics of life notes review
Characteristics of life notes reviewsekuhar
 
Characteristics of living things
Characteristics of living thingsCharacteristics of living things
Characteristics of living thingsmarzatec279
 
Hierarchy of biology additional notes
Hierarchy of biology additional notesHierarchy of biology additional notes
Hierarchy of biology additional notesvjcummins
 

Tendances (20)

8 chap 6 (kingdom monera) f.sc 1st year biology helping notes
8 chap 6 (kingdom monera) f.sc 1st year biology helping notes8 chap 6 (kingdom monera) f.sc 1st year biology helping notes
8 chap 6 (kingdom monera) f.sc 1st year biology helping notes
 
Bio ch01 2 (1)
Bio ch01 2 (1)Bio ch01 2 (1)
Bio ch01 2 (1)
 
Biology First Year Complete 14 Chapters
Biology First Year Complete 14 ChaptersBiology First Year Complete 14 Chapters
Biology First Year Complete 14 Chapters
 
Unit 1 Introduction To The Study Of Life
Unit 1 Introduction To The Study Of LifeUnit 1 Introduction To The Study Of Life
Unit 1 Introduction To The Study Of Life
 
Biology - Chp 1 - Biology The Study Of Life - PowerPoint
Biology - Chp 1 - Biology The Study Of Life - PowerPointBiology - Chp 1 - Biology The Study Of Life - PowerPoint
Biology - Chp 1 - Biology The Study Of Life - PowerPoint
 
Unifying Themes of Life
Unifying Themes of LifeUnifying Themes of Life
Unifying Themes of Life
 
Introduction to biology
Introduction to biologyIntroduction to biology
Introduction to biology
 
Themes of bio detailed
Themes of bio detailedThemes of bio detailed
Themes of bio detailed
 
Unifying Themes of Biology
Unifying Themes of BiologyUnifying Themes of Biology
Unifying Themes of Biology
 
Unifying themes
Unifying themesUnifying themes
Unifying themes
 
Characteristics Of Living Things
Characteristics Of Living ThingsCharacteristics Of Living Things
Characteristics Of Living Things
 
Chapter1 sections 1-4
Chapter1 sections 1-4Chapter1 sections 1-4
Chapter1 sections 1-4
 
Unifying themes of Biology
Unifying themes of BiologyUnifying themes of Biology
Unifying themes of Biology
 
Characteristics of life
Characteristics of lifeCharacteristics of life
Characteristics of life
 
Characteristics of living things
Characteristics of living thingsCharacteristics of living things
Characteristics of living things
 
Unifying Themes in the Study of Life
Unifying Themes in the Study of Life   Unifying Themes in the Study of Life
Unifying Themes in the Study of Life
 
Characteristics of living things
Characteristics of living thingsCharacteristics of living things
Characteristics of living things
 
Characteristics of life notes review
Characteristics of life notes reviewCharacteristics of life notes review
Characteristics of life notes review
 
Characteristics of living things
Characteristics of living thingsCharacteristics of living things
Characteristics of living things
 
Hierarchy of biology additional notes
Hierarchy of biology additional notesHierarchy of biology additional notes
Hierarchy of biology additional notes
 

Similaire à Module 01 (Student) Introduction To The Scientific Study Of Life

GENERAL BIOLOGY Unit 1 lesson 1 ppt
GENERAL BIOLOGY Unit 1 lesson 1 pptGENERAL BIOLOGY Unit 1 lesson 1 ppt
GENERAL BIOLOGY Unit 1 lesson 1 pptSherry (Cross) Smith
 
GENERAL BIOLOGY Unit 1 lesson 1 ppt
GENERAL BIOLOGY Unit 1 lesson 1 pptGENERAL BIOLOGY Unit 1 lesson 1 ppt
GENERAL BIOLOGY Unit 1 lesson 1 pptSherry (Cross) Smith
 
Chapter 1: Biology - The Science of Life
Chapter 1: Biology - The Science of LifeChapter 1: Biology - The Science of Life
Chapter 1: Biology - The Science of LifeJenniferAntonio10
 
Biology introduction
Biology introductionBiology introduction
Biology introductionJeff Krause
 
Ecology lecture 1-2 (1-2-2023).pptx
Ecology lecture 1-2 (1-2-2023).pptxEcology lecture 1-2 (1-2-2023).pptx
Ecology lecture 1-2 (1-2-2023).pptxArbaz57
 
Unit1 Lecture1
Unit1 Lecture1Unit1 Lecture1
Unit1 Lecture1fdherrera
 
Apoyo resumen biología
Apoyo resumen biologíaApoyo resumen biología
Apoyo resumen biologíaArturo Mendez
 
Ecology_Group_9_(CE).pptx
Ecology_Group_9_(CE).pptxEcology_Group_9_(CE).pptx
Ecology_Group_9_(CE).pptxsuvadeepde
 
Biodiversity and Evolution.pptx
Biodiversity and Evolution.pptxBiodiversity and Evolution.pptx
Biodiversity and Evolution.pptxRandyBaquiran1
 
Est ch.3 ecosystem and biodiversity part1,2,3
Est ch.3 ecosystem and biodiversity part1,2,3Est ch.3 ecosystem and biodiversity part1,2,3
Est ch.3 ecosystem and biodiversity part1,2,3Meghana Wagh
 
Biodiversity and Evolution.pptx
Biodiversity and Evolution.pptxBiodiversity and Evolution.pptx
Biodiversity and Evolution.pptxydnarpokovlogsky
 
Ecology Rev.ppt
Ecology Rev.pptEcology Rev.ppt
Ecology Rev.pptyoshindo1
 
Ecology Rev.ppt
Ecology Rev.pptEcology Rev.ppt
Ecology Rev.pptJenMejia4
 
Introduction to Ecology(Biotic and Abiotic Factors).ppt
Introduction to Ecology(Biotic and Abiotic Factors).pptIntroduction to Ecology(Biotic and Abiotic Factors).ppt
Introduction to Ecology(Biotic and Abiotic Factors).pptEdgarVillaflorGarcia
 

Similaire à Module 01 (Student) Introduction To The Scientific Study Of Life (20)

GENERAL BIOLOGY Unit 1 lesson 1 ppt
GENERAL BIOLOGY Unit 1 lesson 1 pptGENERAL BIOLOGY Unit 1 lesson 1 ppt
GENERAL BIOLOGY Unit 1 lesson 1 ppt
 
GENERAL BIOLOGY Unit 1 lesson 1 ppt
GENERAL BIOLOGY Unit 1 lesson 1 pptGENERAL BIOLOGY Unit 1 lesson 1 ppt
GENERAL BIOLOGY Unit 1 lesson 1 ppt
 
Chapter 1: Biology - The Science of Life
Chapter 1: Biology - The Science of LifeChapter 1: Biology - The Science of Life
Chapter 1: Biology - The Science of Life
 
Biology introduction
Biology introductionBiology introduction
Biology introduction
 
Ecology lecture 1-2 (1-2-2023).pptx
Ecology lecture 1-2 (1-2-2023).pptxEcology lecture 1-2 (1-2-2023).pptx
Ecology lecture 1-2 (1-2-2023).pptx
 
01 exploring biology text
01 exploring biology text01 exploring biology text
01 exploring biology text
 
Unit1 Lecture1
Unit1 Lecture1Unit1 Lecture1
Unit1 Lecture1
 
Apoyo biologia
Apoyo biologiaApoyo biologia
Apoyo biologia
 
Apoyo resumen biología
Apoyo resumen biologíaApoyo resumen biología
Apoyo resumen biología
 
Apoyo biologia
Apoyo biologiaApoyo biologia
Apoyo biologia
 
01 Lecture Ppt
01 Lecture Ppt01 Lecture Ppt
01 Lecture Ppt
 
Ecology_Group_9_(CE).pptx
Ecology_Group_9_(CE).pptxEcology_Group_9_(CE).pptx
Ecology_Group_9_(CE).pptx
 
Biology
BiologyBiology
Biology
 
Biodiversity and Evolution.pptx
Biodiversity and Evolution.pptxBiodiversity and Evolution.pptx
Biodiversity and Evolution.pptx
 
Est ch.3 ecosystem and biodiversity part1,2,3
Est ch.3 ecosystem and biodiversity part1,2,3Est ch.3 ecosystem and biodiversity part1,2,3
Est ch.3 ecosystem and biodiversity part1,2,3
 
Biodiversity and Evolution.pptx
Biodiversity and Evolution.pptxBiodiversity and Evolution.pptx
Biodiversity and Evolution.pptx
 
Ecology Rev.ppt
Ecology Rev.pptEcology Rev.ppt
Ecology Rev.ppt
 
Ecology Rev.ppt
Ecology Rev.pptEcology Rev.ppt
Ecology Rev.ppt
 
Ecology Rev.ppt
Ecology Rev.pptEcology Rev.ppt
Ecology Rev.ppt
 
Introduction to Ecology(Biotic and Abiotic Factors).ppt
Introduction to Ecology(Biotic and Abiotic Factors).pptIntroduction to Ecology(Biotic and Abiotic Factors).ppt
Introduction to Ecology(Biotic and Abiotic Factors).ppt
 

Dernier

CloudStudio User manual (basic edition):
CloudStudio User manual (basic edition):CloudStudio User manual (basic edition):
CloudStudio User manual (basic edition):comworks
 
Pigging Solutions in Pet Food Manufacturing
Pigging Solutions in Pet Food ManufacturingPigging Solutions in Pet Food Manufacturing
Pigging Solutions in Pet Food ManufacturingPigging Solutions
 
Scanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL CertsScanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL CertsRizwan Syed
 
Designing IA for AI - Information Architecture Conference 2024
Designing IA for AI - Information Architecture Conference 2024Designing IA for AI - Information Architecture Conference 2024
Designing IA for AI - Information Architecture Conference 2024Enterprise Knowledge
 
Install Stable Diffusion in windows machine
Install Stable Diffusion in windows machineInstall Stable Diffusion in windows machine
Install Stable Diffusion in windows machinePadma Pradeep
 
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024BookNet Canada
 
My Hashitalk Indonesia April 2024 Presentation
My Hashitalk Indonesia April 2024 PresentationMy Hashitalk Indonesia April 2024 Presentation
My Hashitalk Indonesia April 2024 PresentationRidwan Fadjar
 
Pigging Solutions Piggable Sweeping Elbows
Pigging Solutions Piggable Sweeping ElbowsPigging Solutions Piggable Sweeping Elbows
Pigging Solutions Piggable Sweeping ElbowsPigging Solutions
 
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmatics
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmaticsKotlin Multiplatform & Compose Multiplatform - Starter kit for pragmatics
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmaticscarlostorres15106
 
SQL Database Design For Developers at php[tek] 2024
SQL Database Design For Developers at php[tek] 2024SQL Database Design For Developers at php[tek] 2024
SQL Database Design For Developers at php[tek] 2024Scott Keck-Warren
 
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmatics
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmaticsKotlin Multiplatform & Compose Multiplatform - Starter kit for pragmatics
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmaticsAndrey Dotsenko
 
Tech-Forward - Achieving Business Readiness For Copilot in Microsoft 365
Tech-Forward - Achieving Business Readiness For Copilot in Microsoft 365Tech-Forward - Achieving Business Readiness For Copilot in Microsoft 365
Tech-Forward - Achieving Business Readiness For Copilot in Microsoft 3652toLead Limited
 
Unleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding ClubUnleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding ClubKalema Edgar
 
#StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
#StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024#StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
#StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024BookNet Canada
 
Build your next Gen AI Breakthrough - April 2024
Build your next Gen AI Breakthrough - April 2024Build your next Gen AI Breakthrough - April 2024
Build your next Gen AI Breakthrough - April 2024Neo4j
 
Transcript: New from BookNet Canada for 2024: BNC BiblioShare - Tech Forum 2024
Transcript: New from BookNet Canada for 2024: BNC BiblioShare - Tech Forum 2024Transcript: New from BookNet Canada for 2024: BNC BiblioShare - Tech Forum 2024
Transcript: New from BookNet Canada for 2024: BNC BiblioShare - Tech Forum 2024BookNet Canada
 
"LLMs for Python Engineers: Advanced Data Analysis and Semantic Kernel",Oleks...
"LLMs for Python Engineers: Advanced Data Analysis and Semantic Kernel",Oleks..."LLMs for Python Engineers: Advanced Data Analysis and Semantic Kernel",Oleks...
"LLMs for Python Engineers: Advanced Data Analysis and Semantic Kernel",Oleks...Fwdays
 
Integration and Automation in Practice: CI/CD in Mule Integration and Automat...
Integration and Automation in Practice: CI/CD in Mule Integration and Automat...Integration and Automation in Practice: CI/CD in Mule Integration and Automat...
Integration and Automation in Practice: CI/CD in Mule Integration and Automat...Patryk Bandurski
 

Dernier (20)

CloudStudio User manual (basic edition):
CloudStudio User manual (basic edition):CloudStudio User manual (basic edition):
CloudStudio User manual (basic edition):
 
Pigging Solutions in Pet Food Manufacturing
Pigging Solutions in Pet Food ManufacturingPigging Solutions in Pet Food Manufacturing
Pigging Solutions in Pet Food Manufacturing
 
Scanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL CertsScanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL Certs
 
E-Vehicle_Hacking_by_Parul Sharma_null_owasp.pptx
E-Vehicle_Hacking_by_Parul Sharma_null_owasp.pptxE-Vehicle_Hacking_by_Parul Sharma_null_owasp.pptx
E-Vehicle_Hacking_by_Parul Sharma_null_owasp.pptx
 
Designing IA for AI - Information Architecture Conference 2024
Designing IA for AI - Information Architecture Conference 2024Designing IA for AI - Information Architecture Conference 2024
Designing IA for AI - Information Architecture Conference 2024
 
Install Stable Diffusion in windows machine
Install Stable Diffusion in windows machineInstall Stable Diffusion in windows machine
Install Stable Diffusion in windows machine
 
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
 
Vulnerability_Management_GRC_by Sohang Sengupta.pptx
Vulnerability_Management_GRC_by Sohang Sengupta.pptxVulnerability_Management_GRC_by Sohang Sengupta.pptx
Vulnerability_Management_GRC_by Sohang Sengupta.pptx
 
My Hashitalk Indonesia April 2024 Presentation
My Hashitalk Indonesia April 2024 PresentationMy Hashitalk Indonesia April 2024 Presentation
My Hashitalk Indonesia April 2024 Presentation
 
Pigging Solutions Piggable Sweeping Elbows
Pigging Solutions Piggable Sweeping ElbowsPigging Solutions Piggable Sweeping Elbows
Pigging Solutions Piggable Sweeping Elbows
 
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmatics
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmaticsKotlin Multiplatform & Compose Multiplatform - Starter kit for pragmatics
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmatics
 
SQL Database Design For Developers at php[tek] 2024
SQL Database Design For Developers at php[tek] 2024SQL Database Design For Developers at php[tek] 2024
SQL Database Design For Developers at php[tek] 2024
 
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmatics
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmaticsKotlin Multiplatform & Compose Multiplatform - Starter kit for pragmatics
Kotlin Multiplatform & Compose Multiplatform - Starter kit for pragmatics
 
Tech-Forward - Achieving Business Readiness For Copilot in Microsoft 365
Tech-Forward - Achieving Business Readiness For Copilot in Microsoft 365Tech-Forward - Achieving Business Readiness For Copilot in Microsoft 365
Tech-Forward - Achieving Business Readiness For Copilot in Microsoft 365
 
Unleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding ClubUnleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding Club
 
#StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
#StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024#StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
#StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
 
Build your next Gen AI Breakthrough - April 2024
Build your next Gen AI Breakthrough - April 2024Build your next Gen AI Breakthrough - April 2024
Build your next Gen AI Breakthrough - April 2024
 
Transcript: New from BookNet Canada for 2024: BNC BiblioShare - Tech Forum 2024
Transcript: New from BookNet Canada for 2024: BNC BiblioShare - Tech Forum 2024Transcript: New from BookNet Canada for 2024: BNC BiblioShare - Tech Forum 2024
Transcript: New from BookNet Canada for 2024: BNC BiblioShare - Tech Forum 2024
 
"LLMs for Python Engineers: Advanced Data Analysis and Semantic Kernel",Oleks...
"LLMs for Python Engineers: Advanced Data Analysis and Semantic Kernel",Oleks..."LLMs for Python Engineers: Advanced Data Analysis and Semantic Kernel",Oleks...
"LLMs for Python Engineers: Advanced Data Analysis and Semantic Kernel",Oleks...
 
Integration and Automation in Practice: CI/CD in Mule Integration and Automat...
Integration and Automation in Practice: CI/CD in Mule Integration and Automat...Integration and Automation in Practice: CI/CD in Mule Integration and Automat...
Integration and Automation in Practice: CI/CD in Mule Integration and Automat...
 

Module 01 (Student) Introduction To The Scientific Study Of Life

Notes de l'éditeur

  1. Figure 27.1 Asexual reproduction of an aggregating sea anemone ( Anthopleura elegantissima ) by fission.
  2. Figure 27.2A Asexual (left) and sexual (right) reproduction in the starlet sea anemone ( Nematostella vectensis ).
  3. Figure 27.2B Hermaphroditic earthworms mating.
  4. Figure 27.2C Frogs in an embrace that triggers the release of eggs and sperm (the sperm are too small to be seen).