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tresset_1 [31]
3 years ago
11

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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During a routine prenatal visit, ms. t. was noted as having dependent edema, varicosities of the legs, and hemorrhoids. she expr
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<span>explain to her that her enlarged uterus is compressing her pelvic veins and her inferior vena cava. you would further explain that these findings upon the vistation of a doctor.</span>
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3 years ago
Which statement best explains why cells separate and expel waste.
anastassius [24]

I would say the 2nd one It helps growth and repair of cells of orgasms

But your school would probably say the 3rd one It helps remove toxins from the body to maintain homeostasis

4 0
3 years ago
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Meiosis is a process that produces gametes. Using the diagram, what do you notice about the cells produced in meiosis?
Verizon [17]

Answer:

<u><em>The correct option is C) Meiosis produces 4 daughter cells each with half the number of  chromosomes of the original cell.</em></u>

Explanation:

There are two main processes by which cell divides:

1) Mitosis

2) Meiosis

All the cells of the body divide by the process of mitosis except the sex cells.<em> Sex cells divide by the process of meiosis.</em>

Meiosis can e described as a type of cell division in which four daughter cells are formed each having half the number of chromosomes as the parent cell. This is because the cell has to attain half of the maternal and half of the paternal chromosomes at the time of fertilization.

Crossing over and independent assortment are the phenomenon of meiosis which bring genetic diversity among parent and children.

4 0
3 years ago
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Name an organism in each domain: archaea, bacteria, eukarya
scZoUnD [109]

Answer:

Explanation:

archaea:they live in water area and usually eat some plants

bacteria:the germs that are in the air

eukarya:it is an animal well better said any animal because it has a cell membrane and nucleus to protect the cell

7 0
3 years ago
The preferential use of phosphatidylinositol and phosphatidylethanolamine in the cytoplasmic leaflet of membranes leads to incre
spayn [35]

Answer:

The best answer to the question: The preferential use of phosphatidylinositol and phosphatidylethanolamine in the cytoplasmic leaflet of membranes leads to increased:___ would be, D: All of the answers are correct.

Explanation:

There is still a lot of debate among scientists as to the exact way in which phospholipids are distributed between the two leaflets of a cell´s plasma membrane, but what they do know is that there are four kinds, and that phosphatidylinositol (a sterol) and phosphatidylethanolamine appear most commonly on the cytosolic, or cytoplasmic side of the membrane. They also believe that it is this particular arrangement which allows the cytoplasmic side of the membrane to be slightly negatively charged and this role will play a major part in a membrane´s ability to generate an action potential. Also, it is known that these negatively charged ends of the bilayer will allow certain proteins, positively charged ones, to be inserted, and connected to it, to become transporters, or mediators in action potentials and normal activities of cells. Finally, since fatty acids and cholesterol are associated with phospholipids, but have a tendency to be attracted to these particular two types, they tend to give the overall structure fluidity, but also permit  the inner leaflet to assume its particular circular shape around the cytoplasm. This is why the answer is D.    

4 0
3 years ago
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