Answer:
1. The Diet Pills
2. The Height Of the plants
3. The plant being watered with tap water
4. 8 Trials were included
Explanation:
1. An independent variable is the variable that you change
2. The dependent variable is what you are measuring, in this example the height of the plant
3. This is what you use to base your conclusion on. In this test they are seeing if diet pills affect the height of the plants. So a plant with no diet pill is the control
4. The results were taken at the end of the week for EIGHT weeks. 8 Trials.
Answer:
Explanation:
Since the Industrial Revolution began around 1750, human activities have contributed substantially to climate change by adding CO2 and other heat-trapping gases to the atmosphere. These greenhouse gas emissions have increased the greenhouse effect and caused Earth's surface temperature to rise
Some cells have to give up reproduction
Answer:
Bees
Explanation:
Parthenogenesis is a method of asexual reproduction in which an egg cell develops into a new individual without fertilization. Parthenogenesis occurs in insects, amphibians, reptiles, fish, and in some plants. Most of the organisms which reproduces through parthenogenesis, they also reproduce sexually. Parthenogenesis may be occurs by apomixis and by automixis. In apomixis, egg is produced by mitosis and results into diploid clones. In automixis egg is produced by meiosis and the haploid egg develops into diploid new individual by the duplication of chromosomes. Parthenogenesis is an adaptation which allows to reproduce in adverse environmental conditions when sexual reproduction is not possible.
