Cells and photosynthesis
What are all living things composed of?
Cells
What are some enviromental factors?
Environmental factors are: nutrition, water , sunlight, temperature , space
Evaporation
water from surface → water vapor
Symbiosis
close relationship between two different species
What is cytoplasm?
a gel-like substance inside the cell where organelles are found
What is genetic variation?
Offspring receive half genes from each parent
Condensation
water vapor → liquid water
Succession
gradual change in ecosystem over time
What are Eukaryotic cells?
(animals, plants, fungi, protists): has nucleus, larger, more complex
What are Anatomical similarities
homologous structures among different species suggest common ancestry
Precipitation
water falls as rain/snow
Adaptation
trait that helps organism survive in its environment
Explain
Endoplasmic reticulum
a transport system; rough ER makes proteins, smooth ER makes lipids
What is the difference of Recessive and Dominant alleles?
Dominant allele (capital letter): expressed when present; masks recessive
Recessive allele (lowercase letter): only expressed when two copies present
Runoff
water flows over land to oceans
Natural Selection
process by which organisms with advantageous traits survive and reproduce more successfully
______________ and ____________ are complementary processes
Photosynthesis and respiration
What is the importance of biodiversity?
for healthy ecosystems have high biodiversity; indicates ecosystem health
Infiltration
water soaks into soil
Mutations
change in dna