The answer is D as an electron is given off (which is a beta particle) and an electron is so small in weight/size (1/1840) that it is not counted when the mass number is calculated, instead the neutrons and protons are used
Also the atomic number is only dependant on the number of protons as this identifies the element as no two elements can have the same number of protons but can have the same number of electrons (e..g isotopes). So nothind is affected so it has to be D
Answer:
elimination of synthetic pesticides and fertilizers and other materials, such as hormones and antibiotics, yield is typically lower in an organic field than for a similar crop grown in a conventional or GM cropping system, use of biological control, crop rotations and other techniques to manage weeds, insects and diseases.
Explanation:
i did the usa test prep :)
They share lack of back bone, use tube feet to move, and I’m not sure about the open circulatory system because mollusks that fall into cephalopod category have closed ones but all others have open as well as echinoderms
Answer:
septic system
Explanation:
A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater flows for basic treatment.
Answer:
They create an adhesive material that sticks to the surface.
Explanation:
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