Q: Isotopes have the same number of protons and electrons, but a different number of what? Choices: - reactions - impurities - atoms - neutrons A:
neutrons

(Question)
Q: What is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane? Choices: - metastasis - autolysis - ectocytosis - endocytosis A:
(Answer)
endocytosis

Ques: Q: What is a relationship between living things that depend on the same resources? Choices: - parasitic - symbiotic - contention - competition A:
Ans: competition

(Q).
Q: What do nerve impulses travel along? Choices: - arteries - pores - membranes - axons A:
(A).
axons

Ques:Q: What is the only planet that is known to support life? Choices: - Venus - Mars - Saturn - earth A:

Ans:earth

Question: Q: How many types of tissue are found in animals? Choices: - six - three - Ten - four A:
Answer:
four