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3 years ago

Are stars luminous or non-luminous? Explain your answer.

Biology

1 answer:

rusak2 [61]3 years ago

6 0

Answer:

Both a torch and a star are considered to be luminous objects. In order for us to see an object that is non-luminous, it must reflect some of the light it receives from a luminous source, such as the Sun.

Explanation:

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Factors that have the greatest effect on how much freshwater is available over time?

olga nikolaevna [1]

Answer:

climate, geology, abstraction, poverty

Explanation:

Climate: lack of precipitation can lead to a lack of water. That is why is rain is important.

Geology can also be a factor in the availability of water. When water goes under the ground, rocks let the water enter through and make a water depot that is saved underground.

Regular cleaning of the water. Even though in some places there is enough water because of the pollution, it can’t be used.

Abstraction: it is important to have a limit when using water. If the amount of water for use is smaller than the water we get through precipitation, the quantity will be balanced.

When the country is rich, it can provide regular water inspection, while in poor countries this can be a big problem.

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3 years ago

What features are seen in all cells?

Serga [27]

All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4) ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.

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3 years ago

Read 2 more answers

Describe the coastline and the features of the Pacific Ocean

Ksivusya [100]

Answer:

Coastline has lots of beaches and is an area for breeding for many sea animals.

Explanation:

idk

7 0

4 years ago

Paramecium lab answer

Hoochie [10]

In this virtual lab, grow two species of paremecium in test tubes and record data on their population growth. Experiment shows that when grown together, one species will die, illustrating the competitive exclusion principle.

4 0

4 years ago

Using the key choices, identify each type of cartilage described (in terms of its body location or function) below.

Umnica [9.8K]

Answer:

elastic 1. supports the external ear

fibrocartilage 2. between the vertebrae

hyaline 3. forms the walls of the voice box (larynx)

elastic 4. the epiglottis

hyaline 5. articular cartilages

fibrocartilage 6. meniscus in a knee joint

hyaline 7. connects the ribs to the sternum

fibrocartilage 8. most effective at resisting compression

elastic 9. most springy and flexible

hyaline 10. most abundant

Explanation:

Cartilage is a type of <u>connective tissue</u> that is characterized by being avascular and very flexible. There are three types of cartilages that can be differentiated by their histological properties, their function and their specific location in the body.

Hyaline cartilage is the most abundant and can be commonly found in articulations.

Fibrocartilage presents a mix of cartilage tissue and collagen fibers, making it tougher than the other types.

Elastic cartilage is much more flexible because it has elastic fibers and is found in places where this flexibility is needed (like the epiglottis).

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3 years ago