Nature of science
What is the difference between a quantitative and qualitative observation
quantitative has to do with numbers and qualitative has to do with your 5 senses
What is parasitism?
one benefits; one is harmed
What is the function of the nucleus?
control center of the cell
How many parents does sexual reproduction and asexual reproduction need
sexual: 2
asexual:1
what is the difference between genotype and phenotype
genotype: letter combo
phenotype: physical appearance
What is a control
something in the experiment that stays the same
What relationship is this
Ostriches and gazelles feed next to each other. They both watch for predators. Because the visual abilities of the two species are different, they can each identify threats that the other animal may not see as readily. Both species benefit.
mutualism
Which organelles are only in plants
What are the benefits and disadvantages of sexual reproduction ?
advantage: genetic variation
disadvantage: takes longer to find mate
what is the difference between homozygous and heterozygous
homozygous: same
heterozygous: different
What is the difference between replication and repetition?
repetition: when one scientist repeats their experiment over again
replication: when multiple scientists repeat their experiment over
Where does the arrow face in a food chain
points to where the energy goes;
ex. grass--> deer
What are the 3 parts of cell theory?
all cells come from preexisting things
cells are the basic unit of life
all living things are made of one or more cells
What is meiosis and mitosis used for?
meiosis: reproduction; produces reproductive cells
mitosis: growth and repair
For cross FF and ff above, what is the percentage of offspring that will be heterozygous
100%
Johnny wants to know which soil substrate will absorb the most solar radiation. He fills 3 beakers with 350ml of soil. One beaker receives sand, one receives black top soil and one receives clay. He leaves a fourth beaker empty. He places a thermometer in each beaker and sets them under lamps, each with 100 watt lightbulb. He then takes temperature readings every 10 minute s for 24 hours. What is the independent variable?
type of soil
Where does all energy come from, even if it is not pictured on a food web/chain
the sun
What is the function of the lysosomes?
break down and they get rid of waste
What does PMAT stand for
Prophase
Metaphase
Anaphase
Telophase
What is polygenic inheritance?
When more than genetics affects genes.
Johnny wants to know which soil substrate will absorb the most solar radiation. He fills 3 beakers with 350ml of soil. One beaker receives sand, one receives black top soil and one receives clay. He leaves a fourth beaker empty. He places a thermometer in each beaker and sets them under lamps, each with 100 watt lightbulb. He then takes temperature readings every 10 minutes for 24 hours. What is the dependent variable?
temperature
Give an example of a producer, consumer, and decomposer
answers vary;
examples: producer: grass; consumer: lion; decomposer: worm
What is the order of living things starting with cells
organelle, cells, tissues, organs, organ systems, organisms
sort the following for mitosis and meiosis
Makes body cells
Makes reproductive cells
Cells produced for growth and repair
Genetic variation
Diploid
Haploid
Daughter cells have a half set of chromosomes
Asexual Reproduction
Sexual Reproduction
Two daughter cells produced
mitosis:
*body cells
*growth and repair
*2 daughter cells produced
*asexual reproduction
* diploid
meiosis:
* reproductive cells
* genetic variation
*4 daughter cells produced
*sexual reproduction
*half set of chromosomes
*haploid
A scientist studying pea plants determines that the allele for yellow seed color, Y, is dominant to the allele for green seed color, y. To study this further, the scientist decided to cross two heterozygous pea plants that produce yellow seeds.
Using a Punnett square, what is the percent probability of these two pea plants producing offspring that make green seeds?
25%