Science Flashcards
what is the process of creating a new organisms from existing ones
reproduction
Heredity - explains why offsprings resemble but are not identical to their parents and is a unifying biological principle, means characteristics or traits are passed from one generation to the next due to genes
These are found in a cells chromosomes
a. sperm
b. genes
c. budding
genes
these are the reproductive cells of a organism
gamets
spermatogenesis-meiosis of
sperm
oogenesis-meioses in
egg cell
Haploid is the gametes formed by mioses that have how many sets of chromosomes?
1
humans have__chromosomesor 23 pairs, half from the father and half from the mother
46
fertilization is the union of gametes to form a fertilized eg called a
zygote
spawning is part of what type of fertilization
a. internal
b. external
external
this is a process where the egg is fertilized within the female reproductive tract, This process happens in internal fertilization
copulation
this reproduction does not involve 2 parents or the union of gametes
asexual reproduction
write the LETTER of the correct answer
The parent cell divides resulting in two identical cells.
a. Binary fission
b. Bud formation
c. Fragmentation
d. Regeneration
e. Spore formation
f. Vegetative propagation
a
write the LETTER of the correct answer
Common in plants, it is a process by a new plat is formed from other plant parts thie method occurs naturally
a. Binary fission
b. Bud formation
c. Fragmentation
d. Regeneration
e. Spore formation
f. Vegetative propagation
f
write the LETTER of the correct answer
The process where the new organisms form from a fragment of the parent
a. Binary fission
b. Bud formation
c. Fragmentation
d. Regeneration
e. Spore formation
f. Vegetative propagation
c
write the LETTER of the correct answer
The formation of many spores is located in a special structure called sporangium.
Spores are specialized microscopic cells enclosed within a case that can easily be carried by the wind from one place to another.
a. Binary fission
b. Bud formation
c. Fragmentation
d. Regeneration
e. Spore formation
f. Vegetative propagation
e
write the LETTER of the correct answer
Ability to replace any part lost or missing from the body
a. Binary fission
b. Bud formation
c. Fragmentation
d. Regeneration
e. Spore formation
f. Vegetative propagation
d
write the LETTER of the correct answer
A new organism develops from and out growth called bud that grows in a specific site in the body of a matured species
a. Binary fission
b. Bud formation
c. Fragmentation
d. Regeneration
e. Spore formation
f. Vegetative propagation
b
asexual reproduction vs sexual reproduction
AR
energy and time conserving process
Through asexual reproduction, organisms in isolation can incite their population
when the environmental conditions are favorable
the population have the same genetic makeup as the parents
SR
yield a small number of offspring and the entire reproductive process takes a longer period of time
mixing of the gene pool of the species, causing a better chance of surviving
the sexual process is that it reduces the effects on the environment
we cannot control what our offspring looks like
Name the 2 types of ecosystems
start with the bigger ecosystem
Macro and Micro
this is the place where and organisms live the habitat of the organisms provides all the resources that they need in order to live grow and reproduce.
habitat
what is being talked about in edaphic factors
soil
what is the spongy, dark jelly-like material that is formed from decomposed organic substances
humus
what is talked about in climactic factors
water
light
temperature
wind
wavelengths-the most important in the visible light spectrum is blue and relight
Light Intensity- pertains to the amount of light that strikes Earth’s surface. Light intensity varies according to latitude.
Duration-it the length of the day and night varies during certain times of the year and seasons change. This affects the growth and blossoming of plants. some plants are short-day plants that grow when nights are longer than days, long-day plants and neutral plants are not affected by duration.
Photoperiodism-plants affected by the length of daylight and darkness
Heliophytes-plants that grow well in bright sunlight
Sciophytes-those that grow well in shady conditions
hydrophytes plants that live in water
mesophytes-plants that need a moderate amount of water
xerophytes-plants that need little water
this is the varied landscape of a area
topography
this is where an area is facing
direction
biotic factors are____ ____
living things
other name for producer
Autotrops
these are autotrophs that get their energy from light
Photosynthetic
Chemosynthetic are plants that collect energy from their____
surroundings
another name for heterotrphs
consumers
animals that eat meat
carnivores
Herbivores are ____ eaters
plant
these animals eat both
Omnivores
detritivores work with the dead remain to make them into smaller fragments or…
detritus
these work with the detritus to make inorganic materials that when mixed into the soil become fertilized, who are these?
true decomposers
this is the series of eating and being eaten
food chain
this exist because when it comes to eating each species have different preferences
food chain
parasites benefit and the host are harmed
Parasitism
what is Mutualism
organism that benefit from each other
what is Mutualism
organism that benefit from each other
only one organism benefits but non of the organism is harmed
commensalism
a relationship that includes the prey and predators
predation
what is coexistence
-involves the sharing of limited resources s as tho
reduce actual fighting and excessive elimination
Amensalism-
organism is killed while the either organism that harms is unaffected
