Example: 1. Problem: I want to know if a bean plant will grow more quickly outside or inside.
Which will grow more quickly in the period of 3 weeks - a bean plant placed outside or a bean plant
placed inside?
2. Research: Look up the best temperatures for seed germination
3. Hypothesis:
Plants will grow more quickly outside in a period of 3 weeks.
4. Design a Controlled Experiment: Test the hypothesis and data collection
a. Plant 4 bean plants in same sized pots with the same type of soil.
b. Place two in an outdoor location and two in an indoor location.
c. Each day, for 3 weeks, observe and measure plant growth. Ensure that plants receive equal amounts
of water.
5. Collect and Organize Data
Plant
Plant
Height
Plant Height Week 3
Height
Week 1
Plant
Height
Week 2
Total Plant
Growth
Day 0
Plant 1
Indoor
Plant 2
Indoor
Plant 3
Outdoor
Plant 4
Outdoor
6. Analyze data
Create a graph of the plant growth of the 2 different conditions to determine how plants in both
environments progressed in two weeks.
7. Draw conclusion
Based on data, determine if there is a conclusive answer to the question of whether a bean plant placed
outside or inside will grow more quickly.
8. Communicate results
Orally or in written form share the results of the experiment.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.