Human beings have organization in which groups of organs work together to do a certain job

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

Nerve cells are specialized to respond to stimulitrue or false?

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons