Answer:
A
Explanation:
Correct answer is
A.) No. Theories can be refined and improved over time, but cannot become scientific laws.
Karyotyping is used to:
study chromosomes.
treat Down syndrome.
repair chromosomes.
diagnose genetic diseases.
Answer:
The energy comes from electrons produced by oxidation of biological molecules.
Explanation: In photosynthesis, the energy comes from the light of the sun.
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Answer:
a. veins and arteries
b.diaphragm
c.kidney
d.lung
e.4
f.left auricle(atrium) , right auricle(atrium)
g.left ventricle, right ventricle
h.blood plasma
i.digestive
j.buccal cavity ,saliva
k.bile
l.excretory
m.kidneys
Explanation:
Heaps and heaps and heaps and heaps of them!