Answer:
They were spotless and soundless
Explanation:
The control group is used as a reference to compare the result obtained from the experimental group.
The control group differ from the experimental group in the 2005 peacock butterfly experiment in ways such as the control groups of butterflies having their spots covered with paints. A small part of the peacock’s wings were also removed to prevent them from making sound.
This validates them being spotless and soundless
the radiations that are used to treat cancers are of the gamma type. primarily emitted from cobalt-60 (a radioactive isotope). and it is more controlled than other radiation exposures. i.e. solar radiation which is not controlled.
hope that this helps.
<span>If the chromosomes are lined up along the middle then the cell is in metaphase.</span>
Answer:
Negative feedback results in the inhibition of an enzyme in a biochemical pathway, reducing the activity of earlier enzymes, and stopping the pathway. Positive feedback results in the activation of more enzymes, thus increasing its production of the product.
Answer: endothermy
Explanation:
This term describes the ability of some animals to use an internally generated heat to maintain body temperature. Their body temperature tends to stay steady regardless of environment. When it's cold outside such animals increase their metabolic heat production to keep their body temperature fixed. For this reason, the internal body temperature of an endotherm is more or less independent of the temperature of the environment.