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Reil [10]
3 years ago
13

In what process do bacteria break nitrogen gas down into a usable form for plants?

Biology
1 answer:
Serggg [28]3 years ago
6 0

During nitrogen fixation, bacteria breaks nitrogen gasses down into a usable form for plants.

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The fossil evidence found in these sedimentary layers BEST implies that A) invertebrates evolved into vertebrates. B) animals ev
masha68 [24]

The diagram is missing in the question. It can be found in the following link: <em>https://quizizz.com › admin › quiz › 566b055c5cbcd49e2dd0fed1 › earth.</em>

The fossil evidence found in these sedimentary layers best implies that animals evolved bony skeletons after shells

Explanation:

Fossil is not only describing when organism lived, but it also gives information about the “progression and evolution of life” on this earth over millions of years. Fossils also give information that previous life in earth is different from present life.

According to evolutionist around 500 million years ago complex internal skeleton organism came into existence. They told fish had firstly evolved and they dominated the sea. Fossilization is very rare process.

5 0
3 years ago
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Why are some diseases more common in certain groups of people, such as caucasians or African Americans
Anna71 [15]

Answer:

Some diseases are more common in certain groups of people, such as Caucasians or African Americans because individuals in such ethnic groups often share certain alleles (versions of their genes), that have been passed down to them from common ancestors and a particular genetic disorder may be more frequently seen in such groups if one of these shared genes contains a disease-causing mutation.

Explanation:

Some genetic diseases are frequently seen in certain ethnic groups like Caucasians or African Americans. Individuals in such groups often share certain alleles (versions of their genes), that have been passed down to them from common ancestors and one of these shared genes may contains a disease-causing mutation.

Examples of certain genetic disorders that are more common in particular ethnic groups include the Tay-Sachs disease, which is more common in people of eastern and central Europe (Ashkenazi), Jewish or French Canadian ancestry and the sickle cell disease, which occur among people of African, African American, or Mediterranean heritage.

Some genetic disorders are more common in people whose ancestry can be traced to a particular geographic area. The factors that can lead to development of populations with very different genetic allele frequencies include their geographic origin, selection, patterns of migration, historic events, etc. Certain natural barriers like oceans and other water bodies, high mountains, large deserts, or major cultural factors had prevented communication and interaction between people. So mating was restricted within the group, and this produces genetic marker differences and differences in the presence of specific disease-related alleles.

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2 years ago
Vitamin K is needed by the body to allow blood to dot. Most of the vitamin K in humans is produced by bacteria living in the lar
Norma-Jean [14]

Answer:

its not a or d I know that

Explanation:

In adults aged 20 and older, the average daily vitamin K intake from foods is 122 mcg for women and 138 mcg for men. When both foods and supplements are considered, the average daily vitamin K intake increases to 164 mcg for women and 182 mcg for men.

8 0
3 years ago
What does the guard cell do in photosynthesis?​
pishuonlain [190]
Guard cells use osmotic pressure to open and close stomata, allowing plants to regulate the amount of water and solutes within them. In order for plants to produce energy and maintain cellular function, their cells undergo the highly intricate process of photosynthesis
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The cell bodies of sensory neurons whose fibers enter the spinal cord are found in the __________.
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Automatically region nervous system
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