What is a reflex? (This is an easier question) A. Behavior that does not involve the forebrain, or "higher" centers of an animal's brain.

B. Part of the nervous system that connects the sensory receptors to the muscles.

C. A focused, conscious decision to send a signal to a body part.

D. Similar nerve cells grouped together in a nervous system.

Brainliest for whoever is right :)))

I pretty sure the answer is A " Behavior that does not involve the forebrain, or "higher" centers of an animal's brain."

Explanation:

I say this because it is bassicaly saying you body and brain does this without think which is a reflex. Such as geting your knee tapped with a rubber hamer it shoots up with out thinking about it.

Pretty sure it's B. However, I am not positive.

Explanation:

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6