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3 years ago

Which statement correctly describes the relationship between the human population, technology, and fish population stocks?

2 answers:

8 0

Answer: C.) As the human population grows, we're meeting our drinking water needs through the desalinization of seawater and this is lowering the level of the oceans and harming fish populations.

Explanation:

The increasing human population worldwide is affecting the natural resources like water bodies, forests and other resources by improvising their technological constraints.

Among the options given, C.) As the human population grows, we're meeting our drinking water needs through the desalinization of seawater and this is lowering the level of the oceans and harming fish populations. is the correct one because of the fact that with the increase in the human population the demand for water will also increase. If the population face a scarcity of water then it will be bound to desalinate the seawater. This practice will lower the amount of saline water in the oceans. The fish species which are living in the saline water will deplete in number because of decrease in the volume of seawater.

sveticcg [70]3 years ago

6 0

Honestly i believe its d

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In the spinal cord, gray matter is functionally organized into _________ while white matter is organized into _________.

NemiM [27]

Answer:

Horns and columns.

Explanation:

The spinal cord is the important component of the central nervous system. The spinal cord consists of the nerves of the body and control the reflex actions of the body.

Spinal cord consist of white matter and grey matter. The motor and sensory axons are present on white matter. The white matter covers the grey matter and arranged into the different columns. The grey lies inside the white matter and consists of neuronal cell bodies. The grey matter is completely organised in the horns.

Thus, the answer is horns and columns.

3 0

3 years ago

Read 2 more answers

Don't really understand this *zoom out*

Orlov [11]

C, it has to be. it doesnt look like much else

8 0

3 years ago

Read 2 more answers

pantera1 [17]

Answer:

An ecosystem consists of a community of organisms together with their physical environment. In ecosystems, both matter and energy are conserved. Energy flows through the system usually from light to heat while matter is recycled.

Explanation:

3 0

3 years ago

Whiteflies are common pest insects found on cotton, tomato, poinsettia, and many other plants. Nymphs are translucent and mostly

Vlada [557]

The hypothesis devised in this study by the researcher is –

" White fly nymphs escape predation because of their translucent bodies."

In order to test this hypothesis, the researcher is required to conduct an experiment where two sets of white fly nymphs are formed and fed to their predators. The two set of subjects would be -

Set I – White fly nymphs with translucent bodies

Set II- White fly nymphs with translucent bodies coated with harmless dyes.

The number of predated flies in each set can be compared to deduce justification for assumed hypothesis.

Hence, option B is correct

4 0

3 years ago

Consider a cross between a plant with two flower colors, yellow and red. Yellow (Y) exhibits complete dominance over red (y). It

Aneli [31]

Answer:

1) option a is correct. (260+270)/1545

(Note about this option: In the statement, it is written as (260+270) 1545. Lacks the division symbol, / )

2) From these results one can conclude that the two genes are linked (option a)

Explanation:

To know if two genes are linked, we must observe the progeny distribution. If heterozygous individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. If we observe a different distribution, phenotypes appearing in different proportions, we can assume linked genes in the double heterozygote parent.

We might verify which are the recombinant gametes produced by the di-hybrid, and we will be able to recognize them by looking at the phenotypes with lower frequencies in the progeny. Phenotypes with the highest frequencies represent the parental gametes.

To calculate the recombination frequency, we will use the following formula: P = Recombinant number / Total of individuals.

In the present example:

Parental) YySs x yyss

Gametes) YS parental type ys, ys, ys, ys

ys parental type

Ys recombinant type

yS recombinante type

The total number of individuals in the offspring: 1545

Phenotypic class Number of offspring

500 Y-S- (parental)
515 yyss (parental)
260 Y-ss (recombinant)
270 yyS- (recombinant)

According to this information, the phenotypic frequencies of the progeny differ from the phenotypic ratio 1:1:1:1. We can assume then, that these genes are linked.

The recombination frequency is:

P = Recombinant number / Total of individuals

P = 260 + 270 / 1545

P = 530/1545

P = 0.343

The genetic distance between genes is 0.343 x 100= 34.4 MU.

6 0

3 years ago