Answer:
<u>The four stages of labor:</u>
The first stage of labor
In the first stage of labor the Thinning (effacement) and opening (dilation) of the cervix. This is called effacement and dilation(of the cervix).
The process is explained systematically and its very very simple to say that When the cervix dilation happens and mucus strings from vulva placenta is delivered then the child birth is near.
Explanation:
- <u>The first stage of labor has three parts:</u>
- Early labor:The cervix opens to 4 centimeters. <em>The female will probably spend most of early labor at home.</em> The female should keep herself busy in doing her usual activities. Relax, rest, drink clear fluids, eat light meals if she wants to, and keep track of her contractions.
- Active labor: The cervix opens from 4 to 7 centimeters. This is when the female should head to the hospital. When she has contractions every 3 to 4 minutes and they each last about 60 seconds, it often means that the cervix is opening faster (about 1 centimeter per hour).
- Transition to second stage: The cervix opens from 7 to 10 centimeters. For most women, this is the hardest or most painful part of labor. This is when the cervix opens to its fullest.
- <u>Second stage of labor</u>
- The baby moves through the birth canal
The second stage of labor begins when the cervix is completely dilated (open), and ends with the birth of the baby.<em> Contractions push the baby down the birth canal, and the female may feel intense pressure, similar to an urge to have a bowel movement.</em>
- <u>Third stage of labor</u>
- Afterbirth: The uterus continues to contract to push out the placenta (afterbirth).
- <u>Fourth stage of labor</u>
- Recovery:Nursing right after the birth of the baby will help the uterus to contract and will decrease the amount of bleeding.
I think it would be the interphase
Answer: A. tunneling nanotubes
Explanation:
A tunnelling nanotube (TNT) also called membrane nanotube is a concept that has been applied to protrusions extending from the plasma membrane that enables different animal cells to interact over long distances, often over 100 μm between T cells.
There are two types of tunneling nanotube including one type of smaller than 0.7 micrometres in diameter which contains actin, and carries parts of plasma membrane in both directions between cells. The second type is larger than 0.7 μm that contains both microtubules and actin, and may carry cytoplasm components such as vesicles and organelles, including whole mitochondria, between cells.
TNT functions in the development of various diseases by allowing the movement of protein, pathogens aggregates and mitochondria.
Hence, the correct option is A. tunneling nanotubes.
One would expect to see mature hardwood trees during the process of secondary succession within
D. year
Answer:
1. Smog from the factories
2. The lighter colored moths
3. The darker colored moths
4. (see explanation)
Explanation:
The peppered moth originally had light wings with dark speckles, which blended in with the tree trunks they would land on. This kept them hidden from predators.
A genetic mutation was found in which some moths appeared with dark wings with light speckles. Predators could easily spot these moths, so there were much less of them.
During the industrial revolution, smog put into the air by new factories would cause the once light colored trees to be coated in black from the pollution.
Now, the light moths with dark speckles were more easily identified than their genetically mutated counterparts.
The dark moths with light speckles were now the ones that could camouflage with the tree trunks, and became the dominant variation as the light moths were being eaten more.