Biological Influences on Behavior: Heredity, Environment, and Nervous System
Chapter 4 Heredity and Environment
Vascular and Nonvascular Plant Structures and Functions
Stomata
Openings in the outer cell layer of leaf surfaces and some stems that allow the exchange of water, carbon dioxide, oxygen, and other gases between a plant and its environment.
Vascular Tissue
Specialized tissue that transports water, food, and other substances in vascular plants and can also provide structure and support.
Vascular Plant
Type of plant with vascular tissues adapted to land environments; most widely distributed type of plant on Earth.
Nonvascular Plant
Type of plant that lacks vascular
Read MoreMedical Glossary: Definitions and Symptoms
Bias:
a statistical sampling or testing error caused by systematically favoring some outcomes over others
Bind:
To stick together
Breathlessness:
a lack or shortage of breath.
Celiac disease:
caused by allergic reaction in the intestine to Gluten.
Cephalosporin:
a type of antibiotic used for penicillin-resistant bacteria.
Clubbing:
thickening, usually at ends of fingers.
Dizziness:
vertigo, a feeling of being unstable, about to fall.
Dullness:
a dead sound heard when the chest is tapped.
Dura:
one of the membranes
Read MoreWhy species is called the basic unit of systematic biology
- DNA= A self-replicating material that is a carrier of genetic information for most organisms
- Chromosome= A structure found inside the nucleus of a cell.
A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes. - Gene= The basic unit of heredity passed from parent to child. Genes are made up of sequences of DNA and are arranged, one after another, at specific locations on chromosomes in the nucleus of cells.
- Allele= each of two or more alternative
Evolutionary Theories and Evidence: From Redi to Lamarck
Redi’s Experiment
Redi placed pieces of the same type of meat in three jars. He left open the first jar, covered the second with fabric, and closed the third with cork. After a few days, maggots were found in the first two jars, but not the third.
Pasteur’s Experiment
Pasteur placed meat soup in two flasks with an S-shaped neck. After sterilizing the liquid, he observed decomposition in one flask. Cutting the neck of the other flask led to decomposition. Conclusion: S-shaped neck prevented microorganisms
Read MoreIntroduction to Biology: Branches, Levels, and Characteristics of Living Things
Introduction to Biology
Biology is the science dedicated to the study of living things and phenomena related to life in all its aspects. Aristotle was the creator of biology. The theory of spontaneous generation explains asexual reproduction, and he studied and described more than 500 species of animals. Michael Christoph Hanov was the first person who used the term biology for the first time.
Branches of Biology
- Bacteriology: studies of bacteria
- Zoology: studies animals
- Botany: studies plants
- Mycology: