Answer:
A
Explanation:
a. contain checkpoints that determine if the cycle will continue.
b. help move chromosomes to the new daughter cells.
c. produce more chromosomes before the cell divides.
d. grow and produce enough cytoplasm to fill two cells.
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<em>The correct answer would be that G1 and G2 contain checkpoints that determine if the cycle will continue or otherwise.</em>
The cell cycle generally has three checkpoints that happen at G1, G2, and M phase of the cycle.
At G1 checkpoint, the integrity of the DNA of the cell is assessed to ensure that there are no damages and other conditions such as size and energy reserve are checked.
At G2 checkpoint, the cell is assessed for proper chromosome duplication to ensure that there are no mistakes or damages. The size of the cell and the amount of protein are also checked to ensure that the cell is ready for the active division phase.
At M checkpoint, correct attachment of the spindle fiber to the kinetochore of the chromosomes is checked. This checkpoint is also known as the spindle checkpoint and it happens towards the concluding phase of the metaphase stage.
<u>The correct option is therefore, A.</u>
<span>The child has developed within the third stage of separation anxiety, which is accompanied with detachment or denial. Basically there is a termination to parents loss and a partial appearance of environmental adjustment An 18 month old child do not forget their parents. Resignation depicts the child's behavior, not absorbing or even understanding the situation. </span>
Answer:
anaphase I homologous pairs separate
Answer: circulatory system
Explanation:
The digestive system operates very closely with the circulatory system for delivery of the ingested nutrients through the body. The circulatory system carries also chemical signals from the endocrine system that regulate digestion speed.
The circulatory system works closely with skeletal muscle as well to provide efficient oxygen and nutrient transfer necessary for contraction and inhibitory waste products removal.
Hence, the correct option is circulatory system.
Answer:
Oxygen
Explanation:
Reactants are used to make the products.
The cellular respiration formula is:
oxygen+glucose--> ATP + water +carbon dioxide
The reactants are oxygen and glucose. The products are ATP, water and carbon dioxide.
The gas reactant is oxygen.
Hope this helps! :)
