Reproduction
This form of reproduction involves just one parent that produces identical offspring.
Asexual reproduction
What is an instinct?
A behavior that is performed correctly the first time, without needing to be taught
Do plants generally reproduce through sexual or asexual reproduction?
Sexual reproduction
Most of your growth is decided in these, which you get from your parents.
Genes
What is a fruit?
The ripened ovary of an angiosperm that contains a seed or seeds inside it.
What is the name for a fertilized egg cell?
Zygote
What is the process by which some species go through major body structure changes during their life cycle?
Metamorphosis
A tree that produces male and female flowers and fruit best classified as a ______________.
Angiosperm.
What are mating systems?
Behavior patterns related to how animals reproduce.
What are pheremones?
Pheremones are chemicals animals release in the air to send messages to other animals.
The is the name when male and female reproductive structures meet (when sperm cell meets egg cell)
Fertilization
Different forms of a gene are called?
Alleles.
What are the male and female gametophytes (reproductive cells) called in plants that produce seeds (angiosperms and gymnosperms)?
Male- Pollen
Female-Ovule
Give an example of cooperation in the animal kingdom (within one species).
School of fish, herd of bison, wolves hunting in packs, ants working together to build nests, ostriches and zebras grazing together for added protection.
Name 3 ways in which plants spread their seeds.
Plants spread their seeds in a variety of ways, including by wind, water, gravity, animals, and explosions.
1. Asexual reproduction requires two parents
2. Asexual reproduction makes offspring that are identical to their one parent
3. Asexual reproduction makes offspring that are different than their parents
4. Asexual reproduction makes offspring that get half their genes from one parent and half their genes from the other parent
2. Asexual reproduction makes offspring that are identical to their one parent
How do most mammals develop their embryos?
In a placenta inside the mother's body
What is photoperiodism? Give an example
Any change a plant makes due to the length of the day or night.
Example, flowers blooming in spring, dormancy, in the winter etc.
What might cause a species to migrate? Give at least 2 reasons.
Weather, mating, raising young, food, etc.
A dominant allele is a version of a gene that is expressed even when paired with a different allele (called recessive), meaning only one copy of the dominant allele is needed to show the associated trait, while a non-dominant allele (usually referred to as a recessive allele) will only be expressed if both copies of the gene are that specific allele.
1. The offspring will get 25% of their genes from their mother and 75% from their father
2. The offspring will get all of their genes from only one parent
3. The offspring will get half (50%) their genes from the mother and half (50%) from the father
4. The offspring will get 75% of their genes from their mother and 25% from their father
3. The offspring will get half (50%) their genes from the mother and half (50%) from the father
Offspring that result from sexual reproduction get half their genetic code from each parent. This results in variation because offspring become distinct from their parents. With asexual reproduction their is only a seingle source for genetic material.
Name the 3 main tropisms and say what the plant is responding do in each one.
Gravitropism-gravity
Thigmotropism-touch
Phototropism-light
What are 3 environmental factors that could cause an organism to not grow as large as it should?
Nutrition, space, disease/parasites
In general, how is the number of offspring prpoduced by an animal related to the amount of time and energy it invests in caring for its young?
Animals that invest more time caring for their young typically produce fewer offspring than animals that do not care for their young. These animals usually produce many offspring with little investment and hope that a few might survive.