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lbvjy [14]
2 years ago
7

PLZ HELP Will also give brainliest 1.What is DNA? Why is it important to every living thing?

Biology
1 answer:
horrorfan [7]2 years ago
8 0

Answer:

1.DNA is the carrier of genetic information in living organisms as the main constituent of chromosomes.

it is important for the development and genetic instruction guide for life and its processes.

2.molecules of phosphate and inorganic salts

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(1. The orogenic belt containing the Himalayas formed as a result of the _____ buckling from its collision with the Indian plate
Mnenie [13.5K]

Answer:Eurasian

fault block

1 cm

Lesser

Block mountains form along fault blocks. Tension in a fault block can cause horsts in the fault block to tip. The horst edges point upward, forming a range of exposed mountains.

Explanation:

7 0
3 years ago
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A fish maintains its depth in fresh water by adjusting the air content of porous bone or air sacs to make its average density th
Volgvan

Answer:

0.153

Explanation:

We know the up-thrust on the fish, U = weight of water displaced = weight of fish + weight of air in air sacs.

So ρVg = ρ'V'g + ρ'V"g where ρ = density of water = 1 g/cm³, V = volume of water displaced, g = acceleration due to gravity, ρ'= density of fish = 1.18 g/cm³, V' = initial volume of fish, ρ"= density of air = 0.0012 g/cm³ and V" = volume of expanded air sac.

ρVg = ρ'V'g + ρ"V"g

ρV = ρ'V'g + ρ"V"

Its new body volume = volume of water displaced, V = V' + V"

ρ(V' + V") = ρ'V' + ρ"V"

ρV' + ρV" = ρ'V' + ρ"V"

ρV' - ρ"V'  = ρ'V" - ρV"

(ρ - ρ")V'  = (ρ' - ρ)V"

V'/V" = (ρ - ρ")/(ρ' - ρ)

= (1 g/cm³ - 0.0012 g/cm³)/(1.18 g/cm³ - 1 g/cm³)

= (0.9988 g/cm³ ÷ 0.18 g/cm³)

V'/V" = 5.55

Since V = V' + V"

V' = V - V"

(V - V")/V" = 5.55

V/V" - V"/V" = 5.55

V/V" - 1 = 5.55

V/V" = 5.55 + 1

V/V" = 6.55

V"/V = 1/6.55

V"/V = 0.153

So, the fish must inflate its air sacs to 0.153 of its expanded body volume

5 0
3 years ago
Imagine a population of rabbits with fur color that ranges from black to white. If this population were put in an area that has
Molodets [167]

The correct answer is option (C) Gray rabbits would be eliminated by predators.

Camouflage is an adaptation by organisms allowing them to blend with the environment. This helps them in surviving or escaping from their predators. It can be throught coloration or developing a particular pattern or mimicry.

The example given above is a type of camouflage through concealing coloration. Concealing coloration includes having a fixed camouflage and changing the camouflage depending on the environment. Grey rabbits cannot exhibit camouflage as the backgroud is dark rocks and light stones. As a result, these rabbits are clearly visible to the predators and get elimiated by them.



4 0
3 years ago
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The main reason that cells carry out cellular respiration is to
Ne4ueva [31]

Answer;

-To release or generate energy

Explanation;

-The main reason that cells carry out cellular respiration is to release or generate energy that drives cellular processes such as growth, and reproduction.

-Cellular respiration is the process by which animal and plant cells break down nutrients such as glucose to generate energy in the form of ATP, that is used to drive cellular processes such as growth, reproduction and transport among others.

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2 years ago
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PLEEEEEEEEEASEEEE HEEELLLLPPP...!!!
Lerok [7]

The Respiratory organ system

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3 years ago
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