% Biodiversity Unit Review % Flashcards
Differentiate between sexual and asexual reproduction. List the advantages and
disadvantages of each.
two parents provide genetic material for offspring. pros= variation. cons= requires more time and energy
one parent provides genetic material to offspring. Pros= more time and energy efficient. cons= no variation
Identify four forms of asexual reproduction and one example of an organism that performs each.
binary fission: when a cell divides itself- bacteria
Vegetative reproduction: a new plant grows from a fragment of the original plant- potatoes
Budding: cell clones itself- sea sponge
Parthenogenesis: organism produces egg without fertilisation that usually turns into a female- bee
Difference between self-pollination and cross-pollination.
Self pollination: pollen goes from anther to stigma
cross pollination: pollen goes from pistils of one flower to pistils of another.
Draw the life cycle of humans. Your picture must include the following words:
adult, embryo, zygote, gamete, and the following processes: meiosis, mitosis, and fertilization. Feel free to identify the chromosome number in each step.
2 gametes come together and form a zygote. Zygote goes through mitosis to create more somatic cells. They turn into embryos. Embryo turns into a human and when the human is an adult the process repeats.
embryo definition
unborn offspring in the process of developing
zygote definition
cell that is formed by fertilization between to gametes contains all the genetic info of an organism
gamete definition
a female or male cell, that reproduces and forms a zygote
meiosis def
a type off cell division were 4 daughter cells each have half the number of chromosomes of the parent cell
mitosis def
a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus,
mitosis def
a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus,
