Q: What type of bonds between the bases at the center of the dna double helix hold the helix together? Choices: - helium bonds - ionic bonds - electron bonds - hydrogen bonds A:
hydrogen bonds

(Question)
Q: Of the three types of skeleton designs - hydrostatic skeletons, exoskeletons, and endoskeletons - which do humans possess? Choices: - none of the above - hydrostatic skeleton - exoskeleton - endoskeleton A:
(Answer)
endoskeleton

Ques: Q: What subject is a way of learning about the natural world that is based on evidence and logic? Choices: - evolution - geography - geology - science A:
Ans: science

(Q).
Q: What collect data on the land and sea in regards to the weather? Choices: - turbine stations - thermal stations - wind stations - weather stations A:
(A).
weather stations

Ques:Q: What is the hollow and muscular balloon-shaped organ that collects urine? Choices: - prostate - urethra - kidney - urinary bladder A:

Ans:urinary bladder

Q: What does the term porifera means? Choices: - poreless - pore-clogging - pore - signifying - pore-bearing A:
pore-bearing