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ra1l [238]
3 years ago
14

Which organelle forms the surface of a cell, separating its contents from the outside world PLEASE HELP

Biology
1 answer:
irinina [24]3 years ago
5 0
The Cell membrane. The cell membrane Is selectively permeable meaning that it allows certain substances such as water to get through but I can also block other substances that don’t belong in the cell to get into the cell
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Durairajanayagam D, Agarwal A, Ong C. Causes, effects and molecular mechanisms of testicular heat stress. Reproductive biomedici
harkovskaia [24]

Temperature affects spermatogenesis, which functions best at body temperatures just a little lower than those.

<h3>Abstract:</h3>

To keep testicular temperatures below those of the body core, adequate thermoregulation is essential. The process of mammalian spermatogenesis and the resulting spermatozoa are negatively impacted by elevated testicular temperature. Therefore, sperm quality can be affected and the likelihood of infertility is increased by thermoregulatory dysfunction resulting in heat stress. This article reviews a variety of internal and external factors that may lead to testicular heat stress. We go into more detail on how heat stress affects the spermatogenesis process, the resulting epididymal spermatozoa, germ cells, and the alterations that result in the testis.

We also go over the chemical reactions of germ cells to heat exposure and potential processes, such as apoptosis, DNA damage, and autophagy, that could lead to heat-induced germ cell damage. Further explanation is provided for the intrinsic and extrinsic processes involved in the complex mechanism of germ cell death. These intricate apoptotic pathways ultimately result in the demise of germ cells.

Learn more about spermatogenesis here:

brainly.com/question/1594056

#SPJ4

3 0
1 year ago
Why is it important for geologists to use both relative and absolute ages to determine the age of rocks?
uysha [10]

Answer:

to help and determine the exact age of the rocks

Explanation:

The study of rocks strata is known as stratigraphy. It is useful and helps the scientist and the researcher to study the earth's crust and its past.

Scientist could age the rock using two methods. They are :

Relative ages

Absolute ages

Early scientist could determine the exact age of the rock of the earth's crust. They use to find the relative ages of the layers of the rocks and then determine how one rock layer is older or younger than the other. But with advancement and development of carbon dating, scientist could tell the exact age of the rocks found on the earth's crust.

The Scientists uses the relative as well as the absolute dating technique to date the rock layers. They organize the rock layers based on their age and scale from the oldest to the youngest on a geologic time scale. So an exact date of the rocks can be determine by using the two methods of relative age and the absolute age.

3 0
2 years ago
Considering that males can have Klinefelter (XXY) syndrome, XYY, and normal XY chromosomal combinations, and females can have Tu
mestny [16]

Answer:

C) maleness results from the minimal presence of one Y chromosome

Explanation:

  • From the given question, it can be clearly observed that in males irrespective of whichever syndrome they have a Y chromosome is always present whereas in females Y chromosome is not present.
  • Hence, one cal conclude that whenever the Y chromosome is present the individual acquires male characters.
  • The Y chromosome whenever present produces the hormones that leads to maleness, and the number of Y chromosomes in males can also be more than  one such as in case of XYY Klinefelter syndrome.

6 0
3 years ago
WILL GIVE BRAINLIEST Which description accurately describes the tide represented by the image below?
seropon [69]

Answer:

the system creates a moderate high tide

4 0
3 years ago
Och
Gala2k [10]

Answer:

Please explaing more

Explanation:

I dont understand

6 0
3 years ago
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