Living cells need<span> to absorb nutrients and oxygen and to release waste products, such as carbon dioxide. </span>Some animals<span> are </span>small<span> enough to do this by diffusion from their surface and do not </span>require a circulatory system<span>.</span>
Answer:
a mass of cancerous cells grows, it can develop into a tumor.
Explanation:
Answer:
Explanation:
The nucleus is the small region in the center of the atom containing protons and neutrons. The nucleus has positive charge.
A Proton is positively charged and is found inside the nucleus. The number of protons in each atom is unique to each element. Protons are made of quarks.
Neutrons have no charge and are also inside the nucleus. Neutrons are also made of quarks. The mass of a nuetron is slightly larger than a proton's
I'm not sure if this is enough information but I hope this helps :)
0.5 oz is equivalent to 025 grams....hope it helped....:)
Answer: A scientific question is one which can be tested using a set of experiments and comparing with a control variable. Out of the given questions, the nonscientific questions are:
"Why do people in my neighborhood have more cats than dogs?"
"How can the position of the stars and planets be used to predict the future?"
Both of these questions can not be answered through the scientific method, so they are nonscientific.