Notes: Sexual vs. Asexual Reproduction Uniform offspring - ______________________________________________________ Diverse offspring - _______________________________________________________ Sexual reproduction - ____________________________________________________ Asexual reproduction - __________________________________________________

Sexual Reproduction: A type of reproduction in which the genetic materials from _______ _______________ cells combine, producing an offspring. The cells that combine are called _________ ___________.

Female: _____________ Male: _______________. __________________: an egg cell and a sperm cell join together. A new cell is formed and called a _________

Advantages: Sexual Reproduction___________ ____________: genetic variation among offspring. Half of the DNA comes from ________ and half of the DNA comes from _______. Due to the genetic variation, individuals within a population have _____________ ________________. Plants: resist diseases. _______________ can develop to resist harsh environments that allows an organism to survive

____________ _________________: used to develop many types of plans and animals that have desirable traits. Agriculture/farming: better plants, larger animals, desirable pets

Disadvantages: Sexual Reproduction____________ ______ __________ Organisms have to __________ ______ _________ until they are old enough to produce sex cells. Search and find a ___________. __________________ can expose individuals to predators, diseases, or harsh environmental conditions. Fertilization cannot take place during ____________________, which can last as long as 2 years for some mammals. Asexual Reproduction: ____________ ___________ organism produces offspring without fertilization. ______________ ______________: because offspring inherit all of their DNA from one parent, they are _______________ _______________ to each other and to their parent.

What traits allow this creature to survive?

Would this happen naturally in the wild?

________________: cell division in prokaryotes that forms two genetically identical cells. ___________ is copied. The cell begins to grow longer, pulling the two copies apart. The cell membrane pinches inward in the middle of the cell. The cell splits to form two new ______________, identical offspring. Examples: _______________________________________________

________________: a new organism grows by mitosis and cell division on the body of its parent. The ________, or offspring is ______________ to the parent. The bud, when large enough, can break off of the parent and live on its own. Offspring may remain attached and forma a ______________. Examples: ________________________________________________________

_________________: occurs when an offspring grows from a piece of its parent. _______________________________: Sea stars, sea urchins, sea cucumbers, sponges, and planarians_______________________________: Gecko, newts, tadpoles, crabs, hydra, zebra fish

______________ ____________________: uniform offspring grow from one part of a parent plant. Parent plants send out ____________. Where the runner touches the ground, _________ can grow. A _______ ____________ is produced even if the runner is broken apart. Each new plant is _____________ and identical to the parent. Examples: _____________________________________________________________________

Advantages: Asexual Reproduction Enables organisms to reproduce without a __________. No ___________ time and energy. Enables some organisms to ___________ reproduce a large number of ______________ offspring.

Disadvantages: Asexual Reproduction Because their offspring are identical, there is _______ genetic variation that can give an organism a better chance of survival. ______________: if a weed killer can kill the parent, it can also kill the offspring. A whole species can be wiped out from a disease. Dangerous ______________ in DNA – if the parent has the mutation in their DNA, the offspring will have it too.

How fast could a population grow?

How does this hyra reproduce?

How are new plants formed?