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3 years ago

The physical aspects of an ecosystem, or its include soil, water, and weather

1 answer:

6 0

The study of the interactions of living organisms with one another and with their physical environment (soil, water, climate, etc...) Consists of a community and all the physical aspects of its habitat (such as the soil, water, weather, etc...)

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Explain why germinating seeds were used in this investigation cellualr respiration

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Explanation:

As oxygen is consumed to provide energy, germinating seeds release carbon dioxide. ... HYPOTHESES: The experimental hypothesis is that germinating seeds will show a greater rate of respiration than control glass beads. Additionally, that at higher temperatures, the rate of cellular respiration in the seeds will increase.

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3 years ago

Susan sat out in the sun watching a baseball game. She developed small blisters on her unprotected shoulders and neck. What type

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Second-degree burn is the type of burn represented by the formation of the blisters.

Second-degree burn is a burn that affects the epidermis and the superficial part of the dermis layer (skin). Second-degree burn may be caused by sunburn, chemicals, scald injuries, flames or electricity. The burn site may appear blistered, red, wet and shiny, and may be swollen and painful.

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3 years ago

6. Evaluate the different ways an animal can respond to stress.

lina2011 [118]

An animal can respond in negative ways such as: biting, scratching, urinating, whining, restlessness, snippy, or getting sick.

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3 years ago

Explain the link between climate change and globalization.

sammy [17]

Answer:

La globalización hace más vulnerable la economía al cambio climático. La susceptibilidad de la red económica global al estrés por calor de los trabajadores se ha duplicado en la última década, según concluye un nuevo estudio publicado en la revista 'Science Avances'

Explanation:

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3 years ago

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

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3 years ago