Why is the nucleus so important to a living cell?

Answers

Answer 1

Answer: The nucleus is important to a living cell because it serves the function of information storage, retrieval and duplication of genetic information. It is a double membrane‐bound organelle that harbours the genetic material in the form of chromatin.

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How does digestion convert carbohydrates into energy your body can use?
The original population of salamanders migrated southward from the north of California. They avoided the Central Valley because it was too dry and hot for them to live there. As they moved south, the eastern and western salamander populations evolved and by the time they got together again in Southern California, they could no longer interbreed and had become two new species of salamanders.Identify the main mode of isolation of eastern and western salamanders in Southern California.A. The populations evolved separately because they were temporally isolated.B. The populations evolved separately because they were behaviorally isolated.C. The populations evolved separately because they were geographically isolated.D. The populations evolved separately because they were reproductively isolated.
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Why are petri dishes being used?

What are some likely reasons the classroom doorknob is among the least infected areas in a classroom

Answers

that the doorknob isn't used that recently by students, since they don't really use that to study.

Brass doorknobs exhibit an effect known as The Oligodynamic Effect.

This property of a metal means that it will react with the amine groups of enzymes or protein found in bacteria, and kill them.

Most heavy metals exhibit this antiseptic ability.

Please Please Please Please Help Me With This Science Sheet Homework!!!!!!!!!! Questions 1-4!!!!!!

Answers

1. The sizes of their necks vary

Glucose is broken down in different ways both in the presence and in the absence of oxygen.Using the table for reference, which reaction precedes each member of the reaction set in column one?
Reaction set Preceded by
glycolysis A
Krebs cycle B
ETS C
lactic acid fermentation D

A.
A. photosynthesis in plants
B. glycolysis
C. glycolysis
D. Krebs cycle

B.
A. glycolysis
B. Krebs cycle
C. photosynthesis in plants
D. glycolysis

C.
A. glycolysis
B. Krebs cycle
C. glycolysis
D. Krebs cycle

D.
A. photosynthesis in plants
B. glycolysis
C. Krebs cycle
D. glycolysis

Answers

For the given reaction set:

Glycolysis (A)
Krebs cycle (B)
ETS (C)
lactic acid fermentation (D)

Each of the elements of the reaction set is preceded by corresponding elements of set D which consists of:

A. photosynthesis in plants
B. glycolysis
C. Krebs cycle
D. glycolysis

To summarize the order of the reactions:

photosynthesis in plants > glycolysis > Kreb's cycle (aerobic respiration) or lactic acid fermentation (anaerobic respiration) > Electron Transport Chain (ETC)

Aerobic respiration:
Photosynthesis produces glucose, which is used in glycolysis. Glycolysis produces ATP, NADH, and pyruvate. Pyruvate is then used in the Kreb's cycle to produce NADH, FADH2, ATP, and CO2. The ETC then uses the NADH and FADH2 to produce energy.

Anaerobic respiration:
The same process is followed until glycolysis. The pyruvate produced from glycolysis is used in the lactic acid fermentation process to produce lactic acid.

Correct answer is

A. NAD+

B. ATP

C. Pyruvic Acid, ATP, NADH

D. ATP, FADH2, NADH

What is the sequence of amino acids corresponds with the RNA strand UCG GGG CAC

Answers

Glycine is an amino acid coded by GGA, GGU, GGC, GGG codons. Histidine is an amino acid coded by CAC, or CAU codons. It should be known that the mRNA chain that will be encoded must always have a START codon at the beginning and a STOP codon at the end.

Why is repetition important?A It ensures more mistakes and more confident results.
B It ensures fewer mistakes and less confident results.
C It ensures more mistakes and less confident results.
D It ensures fewer mistakes and more confident results.

Answers

D. It ensures fewer mistakes and more confident results.

D is the answer to the question

What advantages of being an invertebrate over a vertebrate?

Answers

Invertebrates do not have backbones, while vertebrates do have backbones.

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Which of the following statements is true?As latitude North and South of the equator decreases, average temperature decreases. The temperature of the sun's surface does not affect the earth. Cool air rises and warm air sinks. Warm air rises and cool air sinks. -- What does warm air from the equator do? rise and move toward the poles sink and move toward the poles remain in the same location and does not move ---- What type of season does Myrtle Beach, SC most likely have? very cold winters very hot summers mild winters no winters -- Deep ocean currents are caused by _____. the earth's curved surface temperature differences wind the water cycle --- Hurricanes _____. usually form over land generally intensify over land gain strength from ocean heat usually form near the poles -- How does the sun affect the water cycle? Sunspots cause surface water to condense. Cooling water vapor causes it to evaporate and form clouds. Heating surface water causes it to evaporate and enter the air as a gas. The sun does not affect the water cycle. ------------- Which of the following statements is true? Water heats up and cools down more quickly than land. In the Southern Hemisphere, most currents flow in clockwise loops. Wind is caused by the uneven heating of the earth. The more sunspots on the sun's surface, the cooler the earth's climate. ------------------------------------------------------------------------------------------------------------------------

What is found in every organ