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satela [25.4K]
3 years ago
11

What new stuff can you think of that scientists have made?

Biology
1 answer:
yKpoI14uk [10]3 years ago
6 0

Answer:

Hey there!

Recently, scientists have discovered many things. Some include: A new ink to detect fake passports, world's largest supercomputer, hyperloop technology, and even a potential vaccine for diarrhea.

Let me know if this helps :)

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What is the name for the new field of study that focuses on the relationship among the brain, immune system, and psychological f
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Answer:

psyconeur

Psychoneuroimmunology.

Explanation:

This is now known to be the study of the interaction between psychological processes and the nervous and immune systems of the human body. It explains further is the interaction between psychological processes and the nervous and immune systems and stress related events of the human body.

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3 years ago
What materials formed the solar system?
Brrunno [24]
According to this theory, the Sun and all the planets of our Solar System began as a giant cloud of molecular gas and dust<span>.</span>
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2 years ago
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When a single parent simply replicates its DNA and then divides, what occurs?
kykrilka [37]

Answer:

A cell division

Explanation:

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3 years ago
Using at least 3 steps explain how to make a wet mount slide with an Elodea plant​
Masja [62]
Step One - Obtain a clean microscope slide.

Step Two - Place a drop of liquid on the slide. This is the “wet” part of the wet mount. The liquid used depends on the type of cell being viewed:
If examining a plant cell, tap water can be used.
If examining an animal cell, physiological saline (or contact lens solution) must be used, because if plain water is used, the cell will explode from osmotic pressure. Unlike plant cells and bacteria, animal cells have no cell wall to structurally support them.

Step Three - Obtain the specimen to be used. Some introductory biology classics for viewing include:
Skin of an onion bulb: In order to view the cells, a very thin layer of skin must be obtained. Take a single layer of onion and bend it towards the shiny side. After it snaps, pull gently, and a transparent layer of skin, similar to Scotch tape, will appear.
Elodea leaf: Elodea leaves are two cell layers thick. The cells in one layer are smaller than the cells in the other, so elodea leaves can be used to better understand a microscope's depth of field.
Cheek cells: Human epithelial cells can be obtained by gently rubbing a toothpick on the inside of the mouth, and then swirling the toothpick in the physiological saline on the slide.
Pond water: Obtaining some water from a pond makes wet mount preparation a breeze, since the water and the specimens are both included.
Hope this helps
8 0
3 years ago
Define Nucleosynthesis and describe what it was like in the first few minutes after the Big Bang
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Answer:

Actually, in physical cosmology, Big Bang nucleosynthesis (or primordial nucleosynthesis) refers to the production of nuclei other than H-1, the normal, light hydrogen, during the early phases of the universe, shortly after the Big Bang. About first millisecond, the universe had cooled to a few trillion kelvins (1012 K) and quarks finally had the opportunity to bind together into free protons and neutrons. Free neutrons are unstable with a half-life of about ten minutes (614.8 s) and formed in much smaller numbers. The abundance ratio was about seven protons for every neutron. Before one neutron half-life passed nearly every neutron had paired up with a proton, and nearly every one of these pairs had paired up to form helium. By this time the universe had cooled to a few billion kelvins (109 K) and the rate of nucleosynthesis had slowed down significantly.

Explanation:

5 0
3 years ago
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