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lana66690 [7]
3 years ago
9

.In women, aging becomes a significant risk factor for heart disease after the age of:

Biology
1 answer:
Gennadij [26K]3 years ago
8 0

Answer: option b - 55

Explanation:

Menopause signifies the time in a woman's life when menstruation ends, usually BETWEEN age 45 - 55.

And because of the crucial role played by Oestrogen in menstruation, its LOSS increases the RISK of HEART DISEASE seen in women AFTER MENOPAUSE .

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Aluminum is an element. Which best describes what makes up a sample of aluminum?
lorasvet [3.4K]

Answer:

one kind of atom

Explanation:

3 0
4 years ago
Read 2 more answers
Place the particular characteristic into the correct corresponding type of dna replication. each characteristic may be used once
torisob [31]

Answer:

This is the remaining incomplete part of the question.

Requires separation of template strand Uses helicase Occurs during interphase of cell cycle Require primers Occurs in nucleus Requires dNTPs Produces Okazaki fragments Requires DNA polymerase Requires Primase Requires Taq DNA polymerase Requires cycles of heating Occurs in cytoplasm Occurs during anaphase of mitosis

Explanation:

Cellular DNA replication                            Polymerase chain reaction

Requires separation of template            Requires separation of template

strand                                                       strand

Requires dNTPs                                       Requires dNTPs

Uses helicase                                           Requires cycles of heating

Requires Primase                                     Require primers

Requires DNA polymerase                      Requires Taq DNA polymerase

Occurs during interphase of cell cycle  

Occurs in nucleus                                    Occurs in test tube

Produces Okazaki fragments

6 0
3 years ago
When an action potential arrives at the axon terminal of a motor neuron, which ion channels open?
HACTEHA [7]

Answer:

Calcium voltage gated ion channels

Explanation:

There are two types of ion channels involved in the neuromuscular junction and end plate potentials: voltage-gated ion channel (responsive to changes in membrane voltage which cause the voltage gated ion channel to open) and ligand-gated ion channel (responsive to certain molecules such as neurotransmitters).

The resting membrane potential of a motor neuron goes from -70mV to -50 with a higher concentration of sodium outside and a higher concentration of potassium inside. <em>When an action potential propagates down a nerve and reaches the axon terminal of the motor neuron, the change in membrane voltage causes the calcium voltage gated ion channels to open allowing for an influx of calcium ions. </em>These calcium ions cause the acetylcholine vesicles  to release acetylcholine via exocytosis into the synaptic cleft.

I hope you find this information useful and interesting! Good luck!

3 0
3 years ago
In which of the following cells would the cycle be shortest for adult cell, teenager kidney,embryonic cell, unfertilised egg cel
Lapatulllka [165]
Unfertilised egg cell
6 0
3 years ago
_____ was developed so that users could communicate with computers in human language.
zzz [600]

Answer:

Natural Language Processing

Explanation:

I hope it helps! Have a great day!

brenn~

5 0
2 years ago
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