Q: What regulates the cell cycle only when they are tightly bound to cdks? Choices: - kinases - subclades - hormones - cyclins A:
cyclins

(Question)
Q: Blood from what organs enters the left atrium of the heart? Choices: - Lymph nodes - intestines - Brain - lungs A:
(Answer)
lungs

Ques: Q: In a chemical reaction, the amounts of reactants and products will be constant when what state is attained? Choices: - saturation - peak - homogeneity - equilibrium A:
Ans: equilibrium

(Q).
Q: Why are continents unable to be pushed down into the mantle by plate boundaries? Choices: - gravity - surface tension - density - buoyancy A:
(A).
buoyancy

Ques:Q: What helps represent age-sex structure of the population? Choices: - habitat chart - density graph - biome model - population pyramid A:

Ans:population pyramid

Q: In what ocean is the mid-atlantic ridge located? Choices: - indian ocean - pacific ocean - arctic ocean - atlantic ocean A:
atlantic ocean