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monitta
3 years ago
5

Describe the view if you were to stand in the penumbra of a lunar eclipse.

Biology
1 answer:
madreJ [45]3 years ago
6 0

From within the Moon's penumbra, a partial solar eclipse can be seen. Like any other opaque objects illuminated by a light source, the Moon and the Earth cast shadows into space as they block the sunlight that hits them. Each shadow has 3 different areas: the umbra, the penumbra, and the antumbra.

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What do the letters inside the grid of a punnett square represent?
Aneli [31]

Answer:

The correct answer is - Genotype of the offspring

Explanation:

Punnet square is a diagram which is used to predict and show the genotype of offspring that is produced by a cross between male and female gametes. This approach was given by Reginald C. Punnett.

Each grid have a genotype that can determine the phenotype of offspring. The letters used in to fill these grids can be made up of uppercase letters, lower case letters or both. The allele shown in upper case letters shows that the allele is dominant and the allele which is in lowercase letter is a recessive allele.

Therefore the letters inside the grid of a punnet square represents the genotype of the offsprings.

4 0
3 years ago
On what basis did al-Qaeda most likely choose its first American bombing targets?
AURORKA [14]
Al-Qaeda <span>chose its first American bombing targets if t</span>he targets were in Africa, which is not far from the Middle East. The second one is your answer. I hope this is the answer that you are looking for and it comes to your help.
7 0
3 years ago
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True or False. The complement system consists of several proteins that circulate in the blood and have the ability to enhance bo
nirvana33 [79]

Answer: False

Explanation: The COMPLEMENT SYSTEM consists of proteins synthesized in the liver. They are activated by inespecific harmful substance (antigen) and begins a cascade of proteins that finally forms an attack complex against bacteria.

The COMPLEMENT is part of the INNATE IMMUNITY, because it is an inherent response, something all humans born with, and it is part of the first defense barrier against any antigen. Part of the innate immunity are too: natural killer cells, neutrophils, monocytes, dendritic cells and macrophages.

On the other hand, the ADAPTATIVE IMMUNITY, is the response that the body develops after being exposed to an antigen before. It is like something that the body recognizes, and then "learns" how to act against it. Part of the adaptative immunity are: lymphocyte T and B, and the antibodies (substances called Immunoglobulins). The immunoglobulins (Ig) are glycoproteins present in the blood.

4 0
3 years ago
Which best describes how our understanding of DNA and inherited traits has changed over time
MAVERICK [17]
<h3><u>Answer;</u></h3>

It was developed by many scientists over many decades.

<h3><u> Explanation;</u></h3>
  • DNA is a type of nucleic acid that contains two long, twisted strands, known as double helix, that contain complementary genetic information.
  • A gene is a segment of DNA that is passed down from parents to children and confers a trait to the offspring.
  • The traits an organism displays are ultimately determined by the genes it inherited from its parents, known as genotype.
  • Our understanding of DNA and inherited traits has changed over time since it has been continuously developed by many scientists over may decades.
4 0
3 years ago
3. List three differences between a HURRICANE and a TORNADO.
Korolek [52]

Answer

The difference is that a tropical storm has wind speed up to 73mph, once it exceeds this then it become a hurricaneTornadoes are usually very short and can last up to an hour, but a hurricane can last up to three weeks. A hurricane almost always forms over sea while a strong tornado usually forms over land

Explanation:

mark me brainlest

7 0
3 years ago
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