Design a controlled experiment to test the effect of water temperature on a goldfish. Be sure to include your hypothesis, independent variable, independent variable, as well as the experimental and control groups in your experiment

The experimental design involves three fish tanks each containing goldfish and sympatric non-competitive species populations composed of 100 individuals (N = 100), which must be maintained in three different temperature treatments.

Explanation:

1- First fish tank: water to the same temperature than its natural environment (for example 25 C)

2- Second fish tank: water temperature  2°C higher than its natural environment (27 °C)

3- Third fish tank:  water temperature  2°C lower than its natural environment (23 °C)

Null hypothesis: temperature treatments does not modify the survival of goldfish populations  

Independent variable: temperature treatments

Dependent variable: Goldfish survivance over n generations

Negative control: First fish tank (water to the same temperature than natural environment)

Control group: sympatric non-competitive species populations

lysosomes contain a variety of enzymes, enabling the cell to break down various biomolecules it engulfs, including peptides, nucleic acids, carbohydrates, and lipids (lysosomal lipase). the enzymes responsible for this hydrolysis require an acidic environment for optimal activity. hope i !

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