Evolution
What is artificial selection?
the selective breeding of organisms by humans for specific characteristics
Adaptations of land plants include
Flowers, seeds, and vascular tissues
How many bones are in an adult human body?
206
What animal phylum includes humans?
Phylum Chordata
How many body systems are there in the human body?
11 Body Systems
study of the distribution of organisms around the world
Whar is mostly likely that plants evolved from most directly?
Aquatic Green Algae
Skeletal System
What were the first animals to colonize land
Invertebrates
There are three main blood vessels. What are they?
Arteries, Veins, Capillaries
What is directional selection
occurs when natural selection favors one of the extreme variations of a trait
where did the earliest plants live
in the ocean
What are the two parts of the Nervous System?
Central Nervous system(Brain and Spinal Cord) and Peripheral Nervous System(Nerves)
All animals are
Eukaryotic, heterotrophic, multicellular
How many Alveoli does an adult human have?
About 300 million
What is microevolution?
evolutionary change within a species or small group of organisms, especially over a short period.
pollen contains
the male gametophyte
What are the organs used in the respiratory system?
Nose, Throat(pharynx), Epiglottis, Larynx, Trachea, Bronchi, Lungs.
What is the rigid rod that runs the length of the body in chordates
Notochord
There are three types of muscle tissue in the human body, what are they?
Smooth Muscle, Cardiac Muscle, and Skeletal Muscle.
What is punctuated equilibrium?
Pattern of evolution in which long stable periods are interrupted by brief periods of more rapid change
The water absorbing structure in nonvascular plants are the
Rhizoids
How many organs are used in the digestive system?
12
All animals with a backbone are classified as what?
What are the main phyla in Kingdom Animalia?
Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Arthropoda, Mollusca, Echinodermata, and Chordata.