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shusha [124]
4 years ago
10

Describe how human activities have affected the worlds major terrestrial freshwater and marine ecosystem

Biology
1 answer:
meriva4 years ago
4 0
Well, we cause pollution from not recycling.
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Jayden, who is terrified of snakes, is walking down the street when he sees a stick that looks somewhat like a snake. He immedia
kodGreya [7K]
Even though what Jayden saw was just a piece of stick which resembles a snake, his brain was triggered because he has a background of having fear of snakes. The part of the brain which is responsible for the emotions felt by Jayden is called the amygdala. The amygdala is described  as that one of those two-almond shaped groups of nuclei located deep and medially within the temporal lobes of the brain in complex vertebrates, including humans. The amygdala is part of the limbic system which is responsible in memory processing, decision-making, and emotional reactions. This part of our brain is linked to the other parts of our brain which are responsible in governing our senses, muscles and hormones. This is also the brain part which enables our bodies to quickly react to the sight or sound of threat. Via the cortex, the same information travels here and put together to form the whole picture. Though the information travels slower through this route,this allows the behavior to be  modified if the situation isn't as dangerous as it first seemed.
3 0
4 years ago
Why might the plutoid haumea have been named after the mother goddess of Hawaii​
Naddika [18.5K]

Haumea is named after the Hawaiian goddess of childbirth. It is the  goddess of fertility and childbirth in Hawaiian mythology.

Explanation:

  • Haumea is the Hawaiian goddess of creation, which is also a dwarf planet in our solar system.
  • By rebirths means Haumea changes herself from age to youth and returns to marry her children and grandchildren.
  • The International Astronomical Union (IAU) announced the name of a new dwarf planet to join the existing four in the solar system.
  • Haumea is recently recorded as about 50 times as far from the sun as Earth is, but its orbit can revolve it in as close as 35 times the distance from earth and sun.
  • It is part of the trans-Neptunian class of cold and rocky objects in the outer part of the solar system.
  • The children of Haumea were created from the parts of her own body, just like how the dwarf planet's two moons were born out of itself.

8 0
3 years ago
Imagine if humans evolved in a low-gravity environment, where muscles didn’t need to work so hard against the gravity of our hea
vodka [1.7K]
<h2>Low-Gravity</h2>

We would be taller

We would be more fat

We would require more exercise

We would get unhealthy more quickly

We would be able to do many things that are not easy on Earth

We would not be able to do somethings that are easy on Earth

We would have more muscles, less bones

<h2>High-Gravity</h2>

We would be Short

We will be thin

We will not require that much exercise

We will be usually healthy

Heavy people will suffer from disease more

A little weight increase can make lots of differences in the body.

Thanks!

6 0
2 years ago
Who first identified DNA?
stepan [7]

Answer:

Friedrich Miescher

Explanation:

Many people believe that American biologist James Watson and English physicist Francis Crick discovered DNA in the 1950s. In reality, this is not the case. Rather, DNA was first identified in the late 1860s by Swiss chemist Friedrich Miescher.

8 0
4 years ago
Read 2 more answers
The ribonucleotide reductase is important for converting ribose bases to the deoxy form. This conversion is coupled with the oxi
Pepsi [2]

Answer:

Thioredoxin

Explanation:

Ribonucleotides serve as precursors for synthesis of deoxyribonucleotides and the reaction is catalyzed by enzyme ribonucleotide reductase. The reduction of a ribonucleotide into deoxyribonucleotide requires a pair of hydrogen atoms.

These hydrogen atoms are supplied from NADPH via ubiquitous protein thioredoxin. The oxidized form of thioredoxin is reduced back in a reaction catalyzed by thioredoxin reductase.  

8 0
3 years ago
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