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4 years ago

Which statement describes indoor air pollution? Check all that apply.

Biology

2 answers:

Deffense [45]4 years ago

8 0

Answer:

Ultra fine particles are classified as an indoor pollutant ( 2)

indoor air pollution can worsen symptoms for people with asthma( 3 )

Indoor air pollutants can pass through the body's natural defenses ( 5)

Explanation:

Indoor pollution is a kind of pollution that tends to occur inside a building which could be residential or commercial in nature and this pollution affects the systems( health conditions ) of the occupants of such building negatively not all sources of pollution can be found in indoor pollution examples of indoor pollution sources are Ultra fine particles. chemicals from industrial power plants do not cause indoor air pollution because they are not kept indoors where humans will come in-direct contact with them.

vovangra [49]4 years ago

4 0

Indoor Air Pollution is the pollution inside the house or a closed premises. Here, the indoor air is contaminated by smoke, chemicals, smells or particles.

The correct statements that describe indoor air pollution are-

2. Ultra fine particles are classified as an indoor air pollutant.

3. Indoor air pollution can worsen symptoms for people with asthma.

5. Indoor air pollutants can pass through the body's natural defenses.

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Explain your hypothesis and how you determined it.

Pepsi [2]

Answer:

A hypothesis is a tentative, testable answer to a scientific question. Once a scientist has a scientific question she is interested in, the scientist reads up to find out what is already known on the topic. ... A hypothesis leads to one or more predictions that can be tested by experimenting

Explanation:

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3 years ago

Determine the phenotypic ratios of the offspring. 9 yellow-inflated : 3 yellow-constricted : 3 green-inflated: 1 green-constrict

skad [1K]

From a cross between dihybrid individuals, whose diallelic genes code for one trait each, expressing complete dominance, the phenotypic ratio is B) 9 green-inflated : 3 green-constricted : 3 yellow-inflated :1 yellow-constricted.

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Since I do not have the cross, I will assume the cross involves two dihybrid individuals by looking at the options.

So, let us picture the situation,

Two diallelic genes code for one trait each, color and inflated/constricted pods.
G allele is the dominant and codes for green pods
g allele is recessive and codes for yellow pods
I is the dominant allele and codes for inflated pods
i is recessive and codes for constricted pods
These genes are not linked

1st Cross) Two h0m0zyg0us individuals

Parental) GGII x ggii

F1) 100% GgIi

2nd Cross) Selfcross between F1 individuals

Parentals) GgIi x GgIi

Gametes) GI, Gi, gI, gi

GI, Gi, gI, gi

Punnett square) GI Gi gI gi

GI GGII GGIi GgII GgIi

Gi GGIi GGii GgIi Ggii

gI GgII GgIi ggII ggIi

gi GgIi Ggii ggIi ggii

F2) Genotype

1/16 GGII
2/16 GGIi
1/16 GGii
2/16 GgII
4/16 GgIi
2/16 Ggii
1/16 ggII
2/16 ggIi
1/16 ggii

Phenotype

9/16 G-I- ⇒ Green and Inflated
3/16 G-ii ⇒ Green and constricted
3/16 ggI- ⇒ Yellow and inflated
1/16 ggii ⇒ Yellow and constricted

Phenotypic ratio 9:3:3:1

Options

A) 9 yellow-inflated : 3 yellow-constricted : 3 green-inflated: 1 green-constricted ⇒ NOT CORRECT

B) 9 green-inflated : 3 green-constricted : 3 yellow-inflated : 1 yellow-constricted ⇒ CORRECT

C) 9 green-constricted : 3 green-inflated : 3 yellow-constricted : 1 yellow-inflated ⇒ NOT CORRECT

D) 9 yellow-constricted : 3 yellow-inflated : 3 green-constricted : 1 green-inflated ⇒ NOT CORRECT

-----------------------------

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3 years ago

maks197457 [2]

Answer:

Bony Fish

Explanation:

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8 0

3 years ago

Read 2 more answers

In what ways are lungs and gills similar ?

Fiesta28 [93]

Answer;

The similarity between gills and lungs is that both are sites for gaseous exchange in living organisms.

Explanation;

Gills is a site for gaseous exchange in fishes amphibians at some stage in life; while the lungs is a site of gaseous exchange in mammals and other organisms such as reptiles.

They both serve to bring in oxygen in the living things body and the eliminate carbon dioxide from the body; process of gaseous exchange.

However, they differ in a number of ways; for example, lungs are internal while gills are external , lungs are developed to breath in oxygen from the air, while gills are developed to get oxygen from water.

3 0

3 years ago

Lem 1 Define the flowing terms: Organelle Tissue

ki77a [65]

Answer:

Organelle: a specialized subunit within a cell that has a specific function

Tissue: a cellular organizational level between cells and a complete organ + an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function

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3 years ago