Answer:Plants use carbon dioxide to make food
Explanation: Carbon-dioxide plays a very important role in sustaining life on Earth.
Plants use carbon-dioxide and water for photosynthesis in presence of sunlight and chlorophyll to produce food and oxygen.
CO₂ + H₂O → O₂ + glucose (food)
This food is consumed by the animals and oxygen is used for respiration. Animals use energy from the food to do work and exhale back carbon-dioxide.
Question: Which of the following would be considered a source of error in an experiment
A) only three house flies were collected for an experiment
B) A beaker is knocked over and the contents are spilled on the floor
C) the data do not support the hypothesis
D) An incorrect average is calculated for the control group
Answer:
"Only three house flies were collected for an experiment
" would be considered as a source of error in an experiment.
Explanation:
Errors are what makes your measurement invalid and unreliable. There are two types of error which is called the systematic error and the random error. Each error has different sources. Words that were mentioned –invalid and unreliable are very important key aspects to determine that your measure is truly accurate and consistent. Some would recommend using the mean method, doing three trials in measuring and getting their mean, in response to this problem.
Answer:
Mammals are a group of vertebrate animals constituting the class Mammalia and characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles and birds, from which they diverged in the Carboniferous, over 300 million years ago.
aardvarks.
bats.
elephants.
hamsters.
humans.
rabbits.
rhinoceroses.
whales.
Explanation:
