What idea is Malthus known for?

Answers

Answer 1

Answer: ogy of Human Populations: Thomas MalthusThomas Malthus (1766-1834) has a hallowed place in the history of biology, despite the fact that he and his contemporaries thought of him not as a biologist but as a political economist. Malthus grew up during a time of revolutions and new philosophies about human nature. He chose a conservative path, taking holy orders in 1797, and began to write essays attacking the notion that humans and society could be improved without limits.Population growth vs. the food supply
Malthus’ most famous work, which he published in 1798, was An Essay on the Principle of Population as it affects the Future Improvement of Society. In it, Malthus raised doubts about whether a nation could ever reach a point where laws would no longer be required, and in which everyone lived prosperously and harmoniously. There was, he argued, a built-in agony to human existence, in that the growth of a population will always outrun its ability to feed itself. If every couple raised four children, the population could easily double in twenty-five years, and from then on, it would keep doubling. It would rise not arithmetically—by factors of three, four, five, and so on—but geometrically—by factors of four, eight, and sixteen.
Between 1800 and 2000 the human population increased about six-fold. Has the food supply kept pace? Will there be enough food to support the projected population of 9.2 billion in 2050?If a country’s population did explode this way, Malthus warned that there was no hope that the world’s food supply could keep up. Clearing new land for farming or improving the yields of crops might produce a bigger harvest, but it could only increase arithmetically, not geometrically. Unchecked population growth inevitably brought famine and misery. The only reason that humanity wasn’t already in perpetual famine was because its growth was continually checked by forces such as plagues, infanticide, and simply putting off marriage until middle age. Malthus argued that population growth doomed any efforts to improve the lot of the poor. Extra money would allow the poor to have more children, only hastening the nation’s appointment with famine.A new view of humans
Malthus made his groundbreaking economic arguments by treating human beings in a groundbreaking way. Rather than focusing on the individual, he looked at humans as groups of individuals, all of whom were subject to the same basic laws of behavior. He used the same principles that an ecologist would use studying a population of animals or plants. And indeed, Malthus pointed out that the same forces of fertility and starvation that shaped the human race were also at work on animals and plants. If flies went unchecked in their maggot-making, the world would soon be knee-deep in them. Most flies (and most members of any species you choose) must die without having any offspring. And thus when Darwinadapted Malthus’ ideas to his theory of evolution, it was clear to him that humans must evolve like any other animal.

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Organisms that live in desert and desert-scrub biomes have developed unique adaptations that aid in their survival. The Sahara Desert takes up ten percent of the continent of Africa, and is the largest desert in the world. The species that live in the Sahara are highly adapted to survive in the extreme conditions they live in. What morphological and physiological adaptations might be seen in the organisms that live in the Sahara Desert?a.

water absorbing skin, large eyes for hunting at night, webbed feet

b.

light colored fur or feathers for camouflage, dense layer of fat and fur for warmth, hibernation during cold months

c.

small bodies and long limbs in warm-blooded organisms, light colored fur or feathers to reflect sunlight, lack of sweat glands in many organisms, hibernation during hot months

d.

dark colored fur or feathers for heat absorption, large bodies and short limbs, consumption of primarily scrub and short grasses

Answers

The morphological and physiological adaptations that might be seen in the organisms that live in the Sahara Desert are small bodies and long limbs in warm-blooded organisms, light colored fur or feathers to reflect sunlight, lack of sweat glands in many organisms, hibernation during hot months.

Best answer choice: C)

I hope it helps, Regards.

The answer is c. small bodies and long limbs in warm-blooded organisms, light colored fur or feathers to reflect sunlight, lack of sweat glands in many organisms, hibernation during hot months.

In the Sahara desert, a temperature could reach extreme values. It is extremely hot and sunny and animals must adapt in order to survive in such conditions.
The warm-blooded animals have small bodies and long limbs. The aim of longer limbs is to increase surface area through which body heat will be lost to the environment. Fur of feathers are light colored because lighter colors reflect the sunlight more efficiently. It is known that black color the most efficiently of all colors absorbs heat while white color most efficiently of all colors reflects the sunlight. Further, animals lack in sweat glands. If they do not sweat, less water will be lost from the body. Also, many species hibernate during hot months and thereby save energy.

Evolution of the spindle was of central importance to eukaryotic cells. what role is played by the spindle during mitosis?

Answers

The role played by the spindle during mitosis is to bring about an orderly distribution of chromosomes to the daughter cell.
The spindle fibers form a protein structure that divides the genetic material in a cell. They are necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: in both mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.

Thespindle fibers are important in theseparation of sister chromatids of the chromosomes, at the centromere. This occurs during metaphase toanaphase. The spindle is composed ofmicrotubules. They extend from the poles of the cell and attach to thekinetochore (at the centromere) of the chromosomes and start pulling apart

Describe the role and importance of the cell membrane. What is meant by the cell membraneis semipermeable?"

Answers

Answer:the cell membrane provides protection for a cell

Explanation: that some molecules can diffuse across the lipid bilayer but others no

The transfer of information from the nucleus to organelles is accomplished by

Answers

ribonucleic acid is the answer! Hope this help!

And if u can can you put mine as brianliest?

SOS:

The answer is ribonucleic acid!!

Hope this helps!!

what is the function of Placenta? During which stage is it completely formed? &How will the fetus body temperature be regulated after birth? During which stage does this method of regulation develop?

Answers

the placenta allows nutrients and oxygen travel from the mother to the fetus(or to the Baby.
The placenta is fully formed by 18 to 20 weeks
These are all I know

Which mathematical symbol would best fill in the blank?7.6 repeating blank the square root of 55
CHOICE'S
A. <
B. >
C. =
D.~

Answers

Answer:

Explanation:

use the calculator to find the value of √55 ≈ 7.4

7.6 is greater than 7.4 so

7.6 > √55

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