BIOLOGY HIGH SCHOOL

Which of these statements about animal cells and plant cells is true.?

Answers

Answer 1
Answer: A cell is the most basic form oflife. It is what most of the organisms are made off. For the organism tofunction, the cell must also function. It has organelles too that helpsfunctions what the microorganisms need. A leaf cell contains chloroplasts thatanimal cells and animal cells do not have. The chloroplast is where the photosynthesis happens. It needs sunlightfor the process of photosynthesis. Notice that the leaf has a broader surfacearea to enable them to be exposed to the sun.
Answer 2
Answer:

Answer:

B

Explanation:

I did the quiz

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Which of these of these organisms would most likely be found at the bottom of biomass pyramid?

Answers

Producers are the organisms that is present or found at the bottom of biomass pyramid.

What organism present at the bottom of biomass pyramid?

Producers such as algae and plants are the organisms that would most likely be found at the bottom of biomass pyramid because producers are the organisms that make their own food from using the sun energy and feed other organisms present in that ecosystem.

So we can conclude that producers are the organisms that is present or found at the bottom of biomass pyramid.

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It seems as though you did not provide answer choices, but a biomass pyramid starts at the primary producers, which then moves up to primary consumers, secondary consumers, and all the way to detritivores. Primary producers are organisms like plants that convert light energy (or other energy) into biomass that other organisms can use.

For plants, what are the advantages and disadvantages of growing tall?

Answers

Advantage:
They can get better sunlight
Disadvantage:
Has to create more food and energy for the whole length of the plants
Hope this makes sense

If a segment of one side of a DNA molecule has 500 adenine bases, how many thymine bases does the other side have?250
500
You can't tell from this data.
0

Answers

If a segment of one side of a DNA molecule has 500 adenine bases, then the other side of the same DNA molecule has 500 thymine bases. There are four nitrogenous bases in DNA. Adenine and Thymine are two of them. The other two bases are Guanine and Cytosine. The order in which these four bases is read  is responsible for telling a cell how to make the proteins that it needs to use to function properly. For example, the bases, in a certain order, will tell the cell to create the protein responsible for transferring oxygen in the bloodstream

it's 500, I just took the test.

How are the three chromosomal aberrations different from each other?

Answers

The three chromosomal aberrations are: (1) Inversion; (2) Translocation and (3) Deletion. They are all different as they have opposing functions of repairing, changing or removing chromosomal differences. Inversion involves breaking the chromosome and inserting another part; translocation involves a part of the chromosome moving to another place, and deletion is where parts are simply deleted and removed.

Chromosomal aberration is referred to as the abnormalities in chromosome and they are of many types. They are different from each other because;

• Duplication: It duplicates the specific part of a chromosome and leads to extra genetic material.

• Deletion: In this, deletion or disappearance of a specific sequence of a chromosome occurs.

• Translocation: In this one portion of a chromosome is transferred to another chromosome.

Further Explanation:

If there is any defect in the chromosome or the sequence of the chromosome, then this condition is referred to as chromosomal aberration. These problems give physical abnormalities or symptoms in an individual. Chromosomal aberration could be developed due to the addition of a particular portion in the chromosome or deletion of a particular sequence from the chromosome. It affects the normal functioning of the chromosome. The two types of chromosomal aberration are:

• Numerical aberration: It develops due to the presence of an extra number of the chromosomes or lack of chromosome. For example, Turner syndrome and Down syndrome.

• Structural aberration: This is developed due to abnormality in the genetic material or loss of genetic material.

Structural aberrations are of many types. Few of them are:

• Deletion: In this, a particular sequence is missing from the chromosome.

• Duplication: In this, some part of the chromosome is duplicated.

• Translocation: In this, part of the chromosome is moved to another chromosome.

• Inversion: In this, the genetic material of a chromosome is inverted due to breakage.

Learn more:

  1. Learn more about the abiotic factor brainly.com/question/1561256
  2. Learn more about the cellular respiration brainly.com/question/8900186
  3. Learn more about the primary and secondary succession brainly.com/question/4723069

Answer Details:

Grade: High School  

Subject: Biology

Topic: Chromosomal aberration

Keywords: Chromosomal aberration, abnormality, translocation, inversion, deletion, duplication, chromosome, turner syndrome, down syndrome, genetic material.

what does mechanical digestion in the stomach involve ? ( 1point ) A. absorption of nutrients by villi B. pepsin and bile C. smooth muscle contractions D. bile and pancreatic fluid

Answers

The mechanical digestion in the stomach involves the contractions of muscle smoothly. Thus, the correct answer is C.

What is digestion?

The process of converting food into nutrients to use it as energy and for development is called as digestion. The digestion takes place mechanically and chemically.

In the chemical process of digestion, food is broken down with the help of enzymes whereas in the mechanical process of digestion food is broken down with the help of chewing from teeth or tearing.

Therefore, option C is correct as this breakdown through teeth involves contractions and relaxation of muscles.

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Final answer:

Mechanical digestion in the stomach involves the physical breakdown of food through smooth muscle contractions, which churns and mixes the food, preparing it for further chemical digestion.

Explanation:

Mechanical digestion in the stomach involves the breaking down of food into smaller bits using physical force. This process includes the smooth muscle contractions of the stomach to churn the food. This mechanical churning of food in the stomach serves to further break it apart and expose more of its surface area to digestive juices, creating an acidic soup called chyme.

These contractions isolate small sections of the stomach, moving the contents back and forth while continuously subdividing, breaking up, and mixing the contents. By moving food back and forth in the stomach, mechanical digestion mixes food with digestive juices and facilitates the further process of chemical digestion.

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What was one model of the solar system developed by early astronomers?

Answers

One of the most famous early models was the geocentric solar system. It was a solar system where Earth was the center of the system since people believed it to be so. We of course nowadays know that's untrue.
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