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never [62]
3 years ago
9

Adam was certain that he had Native American ancestors, based on tales that his grandfather told of the family history. He is di

sappointed when he takes a genetic ancestry test by sending a saliva sample to a testing company, because it does not confirm what he believed to be true. Adam may actually indeed have Native American ancestors because
Biology
1 answer:
Katarina [22]3 years ago
6 0

Answer:

because of the tales his grandfather told, or the dna test was inaccurate

Explanation:

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When the terminal phosphate is cut off of atp what is formed?
KiRa [710]

Answer:

ADP (Adenosine diphosphate; di= two)

Explanation:

When the terminal (third) phosphate is cut loose, ATP becomes ADP (Adenosine diphosphate; di= two), and the stored energy is released for some biological process to utilize.

7 0
2 years ago
Write a paragraph or two below to explain why there is a little change in the pH of battery acid when it is diluted with water.
dalvyx [7]

Answer:

Explanation:

The acid is becoming less acidic. Similarly, when an alkali is diluted with water the concentration of OH - ions decreases. This causes the pH of the alkali to fall towards 7, making the solution less alkaline as more water is added.

5 0
3 years ago
Why is the nitrogen cycle important for the survival of organisms in an ecosystem? A. The nitrogen cycle recycles nitrogen throu
Dahasolnce [82]

Answer: A.) The nitrogen cycle recycles nitrogen through an ecosystem, making it available to all organisms.

Explanation: Nitrogen is an essential nutrient for plants and a significant component of proteins, which all animals need to grow, reproduce and survive. The nitrogen cycle converts nitrogen into compounds that plants and animals can use.

8 0
3 years ago
All matter is composed of tiny particles called
vredina [299]
Are composed tiny particles called Atoms. Which are composed of neutrons, protons and electrons. 
Hope this is a successful answer!:)
7 0
3 years ago
For many years, scientists believed that almost all animal lineages burst into being during the Cambrian era (just after the end
frosja888 [35]

Answer:

Option (A)

Explanation:

The Precambrian represents the time period, right from the beginning of the earth to about 540 million years back. It is divided into 3 parts, namely the Hadean, the Archean and the Proterozoic. Throughout this geological time, vast changes have taken place on earth. The first life forms of about 3.8 billion years old, that existed on earth were the simple unicellular organisms, whose traces were only found at some particular places. These organisms were very small and are comprised of soft bodies, so they were affected by the earth's dynamic processes. The organisms in order to get fossilized must contain hard parts. Due to the presence of soft bodies, the organisms were not fossilized and so it took a long time to demarcate that the late Precambrian organisms were animal-like life.

hence, the correct answer is option (A).

6 0
3 years ago
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