HELPP!! Which of the following best defines a lunar phase?

a) the portion of the lit part of the moon as seen from earth

b) the change in the literal shape of the moon

c) the change in the orbit of the moon about the earth

d) the different sides of the moon as seen from earth

Answers

Answer 1

Answer: A, the portion of the lit part of the moon as seen from earth

Explanation: The lunar phase or Moon phase is the shape of the Moon's directly sunlit portion as viewed from Earth. The lunar phases gradually change over a synodic month (about 29.53 days) as the Moon's orbital positions around Earth and Earth around the Sun shift.


Related Questions

What makes fingerprints individual? How do scientists match a fingerprint to a specific person?

Answers

Answer:

ridge characteristics, which are ridge endings, enclosures and other details. Identical fingerprints not only show the same ridge characteristics, but they show them in the same location on the finger.

Explanation:

Are oomecytes harmful to humans?

Answers

Answer:

Human diseases caused by fungi include valley fever and several infections common to AIDS patients. In addition, in water environments, oomycetes cause destructive diseases in people and animals. For example, they attack the legs, eyes, and brains of rice farmers in Southeast Asia, and they destroy spawning salmon

Explanation:

Which type of cell division creates haploid cells?.

Answers

Answer:

meiosis

Explanation:

other than co2 and water, state two conditions necessary for the synthesis of glucose in plants

Answers

Answer:

Sunlight and Chlorophyll
Explanation:

1. What is DNA?
2. how are nitrogen bases arranged in a DNA molecule?
3. what determines the inherited of an organism
4. what determines the inherited traits of an organism
5. how is RNA different from DNA

Answers

Answer:

1. a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

2. is the pic

3. Genes Have Alleles

The traits an organism displays are ultimately determined by the genes it inherited from its parents, in other words by its genotype. Animals have two copies of all their chromosomes, one from each parent.

4. There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.

Which diploid cells are produced by an embryonic germ cell?.

Answers

Spermatogonla im pretty sure

sources of food stuff in animal nutrition​

Answers

Answer: Animal source foods  include many food items that come from an animal source such as fish, meat, milk, eggs, honey, cheese and yogurt.

Explanation:

Which biologic agent consists of protein-coated ribonucleic acid (RNA) or deoxyribonucleic acid (DNA) and requires a host cell

Answers

Answer:

Virus

Explanation:

A virus is a small collection of genetic code, either DNA or RNA, surrounded by a protein coat. A virus cannot replicate alone. Viruses must infect cells and use components of the host cell to make copies of themselves.

The erythrocyte (red blood cell) count increases after a while when an individual goes from a low to a high altitude because the ________.

Answers

The erythrocyte count increases after a while when an individual goes from a low to a high altitude because the concentration of oxygen is lower at high altitudes.

What are erythrocytes?

The erythrocytes are specialized red blood cells required to transport oxygen to all cells in the body.

This oxygen is fundamental for carrying out the process of cellular respiration by means of cells and tissues.

The amount of red blood cells in the bloodstream is dependent on the altitude at which the person lives.

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What is the difference between plants breathing and photosynthesis?​

Answers

The principal difference, however, between photosynthesis and respiration (plants breathing is called respiration) is that photosynthesis utilizes carbon dioxide and water in the presence of light to produce glucose and oxygen, whereas respiration uses oxygen and glucose to power the activities of the cell.

hope it helps...!!!

Generally, the changes normally associated with menopause occur because the cells in the reproductive tract are:

Answers

Answer:

The uterus no longer produces eggs [ova] which results in infertility and since the eggs are no longer produced there will no monthly blood flow [menstruation]

What is the gravitational constant on earth?
______________ m/s²

Answers

Answer:

9.807 m/s²

Explanation:

Hope this helps!

Answer:

9.807 m/s²

Explanation:

Genome editing techniques have been developed to exploit the CRISPR system of bacteria and archaea. Only the _____ component of the system is used in editing.

Answers

Answer:

Cas9

Explanation:

Genome editing techniques have been developed to exploit the CRISPR system of bacteria and archaea. Only the Cas9 component of the system is used in editing.

What do geologists think happened during the last ice age? A. The Siberian land bridge was covered in water B. Glaciers retreated worldwide C. A mass extinction occurred D. Sea levels dropped 300 feet

Answers

Answer:

D

Explanation:

Just got it right on my quiz :)

Geologists believe that during the last ice age, glaciers advanced and retreated worldwide, resulting in changes in sea levels and climate. So, the correct option is B.

Who are Geologists?

Geologists are scientists who study the Earth, its composition, structure, processes, and history.

During the last ice age, which lasted from about 115,000 to 11,700 years ago, Earth's climate was much colder than it is today. Geologists believe that a variety of factors contributed to the ice age, including changes in Earth's orbit, atmospheric composition, and plate tectonics.

One major feature of the last ice age was the formation of massive ice sheets and glaciers, which covered much of the Northern Hemisphere. These ice sheets were up to 3 miles thick and covered Canada, Greenland, and parts of the northern United States and Europe. As a result, sea levels dropped by as much as 300 feet, exposing land bridges between continents and allowing humans and animals to migrate across them.

Another feature of the last ice age was the occurrence of periodic "ice ages within an ice age" known as stadials. During these stadials, temperatures in some regions of the world dropped by as much as 20 degrees Celsius, leading to widespread glaciation, droughts, and other environmental changes.

Overall, the last ice age was a complex and multifaceted period in Earth's history, and scientists continue to study it to better understand the mechanisms that drive climate change on our planet.

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Help me!!! 30 POINTS

Answers

Answer:

12.5 m/s

Explanation:

Total distance traveled = 500m

Time car was moving = 40s

Avg speed in m/s = 500/40 = 12.5 m/s

Hope this helps!

In rock layers, jellyfish fossils are found lower than trilobite fossils, and trilobite fossils are found lower than ammonite fossils. what can be determined from this information? trilobites existed before jellyfish and ammonites. jellyfish existed before trilobites and ammonites. ammonites existed before trilobites and jellyfish. jellyfish, trilobites, and ammonites lived together.

Answers

Trilobites were exclusively marine animals. They were first appeared at the beginning of the Cambrian Period. In the context Jellyfish existed before trilobites and ammonites.

What is method to determine fossil age?

To find the age of fossil, scientists use some type of clock to determine the date it was formed.

Geologists usually use radiometric dating procedures which is based on the natural radioactive decay of some elements such as potassium and carbon, as reliable clocks to date ancient events.

In the given context, jellyfish fossils are found lower than trilobite fossils, and trilobite fossils are found lower than ammonite fossils. Which determines that jellyfish existed before trilobites and ammonites.

Thus, the correct option is B.

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Answer:

B

Explanation:

Its the Answer

Why did Charles Darwin predict that tetrapods evolved from fish?

Answers

Answer:

fish and tetrapods are both vertebrates that have a backbone with a spinal cord. fish lived before tetrapods because their fossils are in rocks over 500 million years old.

Explanation:

fish and tetrapods are both vertebrates that have a backbone with a spinal cord

What stage of meiosis is the picture attached showing? How do you know?

Answers

Answer:

Metaphase

Explanation:

spindle fibers attach to the chromosomes which line up along the the cell's mid planechromosomes align at the equator

Extinctions that occur at a moderate rate and continuously open a limited number of opportunities for the origin of new species and new niches are known as __________ extinctions

Answers

Extinctions that occur at a moderate rate and open a limited number of opportunities for the origin of new species are known as background extinctions.

What are background extinctions?

Extinction is the physical disappearance of one given species and/or population in an ecosystem.

The term 'background extinctions' makes reference to the extinction that does not generate new niches in an ecosystem.

Background extinctions are well known because they do not contribute to the emergence of biodiversity.

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What do we call the first organism in any food chain to get energy directly from a producer?.

Answers

The primary consumer is the first organism in any food chain to get energy directly from a producer.

What are primary consumers?

Primary consumers are the set of organisms that dey direct energy from the producers which are grass. They are called herbivores because they feed on plants. Examples of herbivores or primary consumer are sheep,goat, cattle and so on. They get their direct energy from plants.

Therefore, The primary consumer is the first organism in any food chain to get energy directly from a producer.

Learn more about primary consumer below.

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Answer: It’s Producers, also known as autotrophs, make their own food. They make up the first level of every food chain. Autotrophs are usually plants or one-celled organisms.

Explanation:

Height in humans generally shows a normal (bell-shaped) distribution. What type of inheritance most likely determines height

Answers

Answer:

polygenic inheritance

Explanation:

conclusion for air pollution​

Answers

in conclusion, air pollution is very dangerous and can harm many. Air pollution can harm the environment, to animals, to even humans. This is why we need to come together and reduce air pollution the best we can.

What structure is similar to the endoplasmic reticulum.

Answers

Answer:

The sarcoplasmic reticulum ( SR) is a membrane -bound structure found within muscle cells that is similar to the smooth endoplasmic reticulum in other cells. The main function of the SR is to store calcium ions (Ca 2+ ).

Explanation:

Mushroom, yeast, penicillian and bread mould are common example of fungi . Suggest the importance of each of them to human beings.​

Answers

Answer:

See below ↓↓↓↓

Explanation:

Mushroom

They are also used for bioremediation, or cleaning up the environment. They’re able to break down oil and other environmental contaminants. Fungus can also help to make better compost.

Yeast

In food manufacture, yeast is used to cause fermentation and leavening. The fungi feed on sugars, producing alcohol (ethanol) and carbon dioxide.

Penicillin

Penicillin is an antibiotic used to treat certain types of bacterial infections

Bread mould

The molds that grow in your mold feed on the bread, cheese, and other foods. A mold produces chemicals that make the food break down and start to rot.

Which type or types of RNA contain a copy of the instructions that a gene carries

Answers

Which type of types of RNA contain a copy of the instructions that a gene carries

· 1. mRNA only

mRNA

Messenger RNA (mRNA) copies the genetic instructions from DNA in the nucleus, and carries the instructions to the cytoplasm.

How does an increase in a deer population that feeds on plants affect the animals and plants in a certain environment

Answers

Answer down below:

If a deer population starts eating all the plants in a specific area, the plants, of course will kill the plants. But also, once all the plants will run out, all the organisms and deer will eventually die out.

Which best describes the lower body structures of humans and chimpanzees?.

Answers

The statement that best describes the lower body structures of humans and chimpanzees is that the big toes of humans and chimpanzees are enlarged.

What is the lower body structure?

The lower body structure is defined as the lower extremities of a vertebrae that is distal to the upper extremities.

The first toes of both human and chimpanzees are enlarged because they are mammals sharing a similar specie.

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Of the 2. 5% fresh water found on earth, how much of it is frozen in polar ice?.

Answers

About 2.1% of all of Earth's water is frozen in glaciers. less than 1% is in all living plants and animals.

In binomial nomenclature the first name is the _______ and the second is the ________.

Answers

Answer:

specific epithet.

Explanation: The binomial nomenclature system combines two names into one to give all species unique scientific names. The first part of a scientific name is called the genus. The second part of a species name is the specific epithet.

Answer:

In the binomial nomenclature the first name is called the genus and the second is called the specific epithet.

Explanation:

Both parents have one copy of a dominant allele for Gene 87 and one recessive allele for Gene 87. What is the chance that their children will inherit the recessive condition (i.e., two copies of Gene 87)

Answers

If you do a punnet square with one dominant one recessive for each parent, you’ll have a 75% chance
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