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Leya [2.2K]
3 years ago
9

Please help me clearly 25 points mateee!!

Biology
1 answer:
Leona [35]3 years ago
4 0

3. IV:height of drop DV:height of bounce CV: type of ball, place where ball is dropped, climate/wind

4. IV: battery type DV: time that it lasts CV: age of batteries, age of material (flashlights), type of materials (flashlights), size of batteries

5. IV:depth of water DV: temperature CV: amount of water in lake, temperature, climate/season


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What two words best describe bacterial reproduction? Why?
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Answer: Bacteria reproduce through a process called binary fission. During binary fission, the chromosome copies itself, forming two genetically identical copies. Then, the cell enlarges and divides into two new daughter cells. The two daughter cells are identical to the parent cell.

Explanation:

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What structural component gives arteries the ability to passively adapt to changes in blood pressures that accompany the heartbe
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Answer: elastic fibers

Explanation:

Elastic fibres are the essential durable component present in mammalian connective tissueand functions to provide proper pulmonary,  cardiovascular and intestinal system structure and function. Their structural function is to provide elastic recoil and resilience for the tissues.

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3 years ago
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(three) crossing over, mutations caused during crossing over, and independent assortment.

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What second messenger most directly causes calcium ions to be released from intracellular stores?
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Answer: adenylyl cyclase inositol triphosphate mainly known as IP3 causes the release of Calcium ions directly from the inracellular stores and causea contraction.

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IP3 binds to the calcium channels and opens Ca2+ channels that are embedded in the ER membrane, releasing Ca2+ into the cytosol. Calcium ions released may cause contraction and regulate the Ca2+ channels in the membranes.

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