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WARRIOR [948]
3 years ago
12

Global population is expected to increase by three billion or more over the next 50–75 years, and the number of people living in

urban areas will more than double. Most of the world's population growth will occur in developing countries. More than 1 billion people do not have access to safe and affordable drinking water. In fact, inadequate drinking water quality is a leading cause of infant mortality worldwide. What proposed solution may help with this problem?
A) increased storage facilities for clean water
B) decrease the number of motor vehicles sold in the United States
C) development of newer, faster methods to protect endangered species
D) give more money to the poor countries without increasing education
Biology
2 answers:
kirza4 [7]3 years ago
8 0

The answer to this question is A.

lbvjy [14]3 years ago
3 0
D.
...........................
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Climate changes cause a drought. There is no food to collect. To survive, the animals must become predators, catch and kill prey
slamgirl [31]

Answer:

This event is telling the evolution by natural selection. This is the directional selection where most adapted animals will survive. According to Darwin, the new species arise from a single ancestor due to variation.

It had also seen in the Finches. All the new species of Finches came from a pre-existing seed-eating Finch. When the environment was favorable the Finches were herbivore and feed on seeds.  

When the number of birds increases, there is a competition between them. Because the food source was limited. To prevent this competition  

some of them go for different foods like insects, fruits, etc.

This food habit change also changes their morphology and separate them from their ancestor.

Similar manner, when draught condition occurs, some of the seed-eating birds become carnivore to survive this new climate. As the environmental condition continues for a long time, the number of carnivore animals will increase in number.

Because due to drought conditions, the availability of seed will decrease. Thus the carnivore birds will be more in number and the herbivore birds will gradually eliminate, as they can't cope with the new climate.

6 0
2 years ago
ANSWER ASAP: In a population of 250 foxes, 18 die on a particular day and 32 were born on that day.
otez555 [7]

Answer:

A. 72

B. 128

C. 56

Explanation:

It is times 1000

So you take births or deaths / population * 1000

And for the end you do 128 -72

4 0
2 years ago
If the ATP synthase for an organism contains 15 C subunits, how many protons must be pumped across the inner mitochondrial membr
mel-nik [20]

Answer:

Please see attachment

Explanation:

Please see attachment

6 0
3 years ago
A gene is composed of two alleles. An allele can be either dominant or recessive. Suppose that a husband and wife, who are both
siniylev [52]

Answer: If a husband and wife who are both carriers of the sickle-cell anemia allele (Ss) but do not have the disease decide to have a child, the offspring can be Normal (SS), carrier (Ss) or sick (ss) with the probability ¼, 2/4 (½) and ¼ respectively.

Explanation: If the mother contributes the dominant allele and the father also contributes the dominant allele, the genotype of the child will be SS. The probability is ¼. This means there is a 25% chance that a randomly selected offspring will be a normal child and will not have sickle-cell anemia.

If the mother contributes the dominant allele and the father contributes the recessive allele, the genotype of the child will be Ss. The probability is 2/4 or ½. This means there is a 50% chance that a randomly selected offspring will be a carrier of sickle cell anemia, but will not have sickle-cell anemia.

If the mother contributes the recessive allele and the father also contributes the recessive allele, the genotype of the child will be ss. The probability is ¼. This means there is a 25% chance that a randomly selected offspring will have sickle cell anemia.

Check attached image for illustrations.

7 0
3 years ago
Based on the graph, at what span of time was the birthrate higher than the
olasank [31]
From year 5 to 7 so a
5 0
3 years ago
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