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Lorico [155]
3 years ago
8

What is the mass number of an isotope that has 1 proton and 2 neutrons

Biology
1 answer:
Lunna [17]3 years ago
8 0

Ans. An isotope of Hydrogen called Tritium has one Proton and two Neutrons and its mass is 1

Hope this helps.

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What is the term that refers to this evolutionary relationship?
Butoxors [25]

Answer:

Phylogenetics

Explanation:

An evolutionary tree can also be called a phylogenetic tree, or a just a phylogeny, and phylogenetics is the study of determining evolutionary relationships, or patterns of descent of organisms.

Hope it helps...

4 0
2 years ago
3. The buccal cavity comprises ________,_______and __________.
Ostrovityanka [42]

The movement of food through the esophagus  is called peristalsis.

<h3>What is the buccal cavity?</h3>

The mouth is what we generally call the buccal cavity. It is an opening that contains the teeth and the tongue. The tongue plays the important role of serving as the organ of taste while the teeth serves to marsh food. It is the white strong structure that occurs in the mouth that enables is to masticate our food. Also in the mouth we have the salivary gland which plays the role of secreting the saliva and we know that the saliva contains from enzymes that makes it possible for the digestion of food to commence at the moth. It the follows that the buccal cavity is made up of the teeth, tongue and salivary glands.

Food moves into the stomach via the esophagus. Thus movement is slow and is aided by the muscles that line the gastro intestinal tract. As such, movement of food through the esophagus  is called peristalsis.

Learn more about peristalsis:brainly.com/question/15265456

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7 0
2 years ago
Trevor watched as the barometer on his front porch showed a change in air pressure.
Artemon [7]

Answer:

The answer is C.

Explanation:

6 0
3 years ago
Organs are made of different kinds of that work together.
Annette [7]

Answer:

Organs are made of different kinds of tissues that work together.

Explanation:

All the organs are made of tissues, the organ level is the next level up from tissues. The groups of tissues work together. The tissues are specialized cell group, the animal body is made of 4 types of tissues: epithelial, connective, muscle, nervous.  

Organs and tissues are levels of organization. Organs are structures made up of two or more tissues, together they carry out a particular function.

6 0
3 years ago
Plant photosynthesis and the consumption of plants by animals is best explained by what unifying principle of life? A) All livin
seropon [69]

Answer:

The correct answer is option A) "All living organisms use energy".

Explanation:

Even though living being use different strategies to obtain energy, an unifying principle among them is that all living organisms use energy to live. Plant use photosynthesis, which allows them to use sunlight, carbon dioxide and water to obtain energy. This classifies plant as producers, whereas animals that consume plants are primary consumers, animals that consume the animals that consume plants are second consumers, and so on.

5 0
3 years ago
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