Animal and Plant Reproduction Cycles
Reproduction and Life Cycles
The Reproduction Function
The function by which progenitor individuals give rise to new individuals, like themselves. There are two types:
- ASEXUAL: Takes place with only one individual who creates identical individuals.
- SEXUAL: Involves two individuals who originate descendants similar but not identical.
The Organic Cycle
These are the stages an organism passes through throughout its life, from zygote to adult. It has a few phases: REPRODUCTION, EMBRYONIC DEVELOPMENT, and
Read MoreCore Concepts in Biology, Ecology, and Geology
Ecology & Environment Concepts
Biotope
The non-living components within an ecosystem.
Symbiosis
A close and long-term interaction between two different biological species. Note: The original definition described a specific type, likely obligatory mutualism.
Mutualism
A relationship between individuals of different species where both individuals benefit.
Population
A group of individuals of the same species that share the same habitat.
Decomposers
Organisms that break down dead organic matter, turning
Read MoreScapula Bone: Anatomy, Function, and Injuries
The scapula, commonly known as the shoulder blade, is a flat, triangular-shaped bone located in the upper back. It plays a crucial role in shoulder movement, providing attachment points for muscles that facilitate arm and upper limb motion. The scapula is situated on the posterior aspect of the ribcage, specifically over ribs 2 to 7, and forms part of the shoulder girdle. It articulates with the humerus (upper arm bone) at the shoulder joint and the clavicle (collarbone) at the acromioclavicular
Read MoreCell Biology Fundamentals: Structure, Function, Types
Cell Theory Explained
Cell theory states:
- The cell is the fundamental structural and anatomical unit of all living organisms. All organisms are formed by one or more cells.
- The cell is the basic physiological or functional unit. Every cell is capable of maintaining life independently.
- Cells are the unit of genetic origin. Every cell derives from a pre-existing cell.
Common Characteristics of All Cells
All cells share these common characteristics:
- A cell membrane
- A set of structures called organelles
- Genetic
Human Circulatory System: Function and Blood Flow Q&A
Understanding the Human Circulatory System
1. Are red blood cells and platelets true cells?
Red blood cells are specialized cells (lacking a nucleus in mammals). Platelets, however, are not true cells; they are fragments of larger cells (megakaryocytes).
2. Explain the link between low hemoglobin and fatigue in anemia.
Anemia often involves low hemoglobin, the protein in red blood cells that carries oxygen. Insufficient hemoglobin leads to reduced oxygen delivery to tissues, causing symptoms like fatigue
Read MoreKey Concepts in Biology and Ecology
Adaptations
Features which enable organisms to survive are called adaptations. Adaptations can be classified as anatomical, physiological, or behavioural.
Types of Adaptations
- Anatomical adaptations are the structures of an organism that are modified to perform an adapted function.
- Physiological adaptations are features of the processes inside an organism’s body that increase its chance of survival or reproduction.
- Behavioural adaptations are any actions by organisms which help them to survive or reproduce.