In the experiment, the independent variable is the drug amount. Experiment group is given certain amount of drug, control group is not given the drug. The dependent variable is the body fat. I think you means the control is the living environment including food and water.
The role of mass extinction in evolution. At the most basic level, mass extinctions reduce diversity by killing off specific lineages, and with them, any descendant species they might have given rise to. ... But mass extinction can also play a creative role in evolution, stimulating the growth of other branches.
Answer:
1. Leads to mixing of genetic materials hence variation within species
2. Leads to offspring with hybrid viguor that tend to show high and adaptability to environmental conditions.
3. Variations due to sexual reproduction leads to improvement of species hence evolutionary changes that may bring about specialisation
Thank you for posting your question here at brainly. Below are choices that I manage to check from other sources:
A. A weed is uprooted from the soil.
B. Oxygen is removed from the water in a fish’s bowl.
C. A cactus is moved from a sunny windowsill to a dark room.
D. The water bowl is removed from a hamster’s cage.
The answer is C.
The answer is calcaneus (heel bone) :)