Why does increased global movement of people increase the risk for pandemic flu? A. It decreases the population densities of urban areas.
B. It increases the transmission of flu between countries.
C. It decreases the responsiveness of national government.
D. It increases the evolution of treatment resistant flu virus.


Answer 1
Answer: I believe the answer to be B
Answer 2

Answer: The right answer is B.

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As earth orbits the Sun, its North and South poles always point in the same direction. _____ Is the statement true or false. If false what should I change always to?


F......the north and south poles point in opposite directions

Explain how the Earth’s rotation and revolution about the Sun affect its shape and is related to seasons and tides.


Earth's seasons are due to the tilt of Earth's axis. When closer the axis is to the Sun, the warmer the season will happen in that certain hemisphere.

What are the consequences of the Earth’s rotation?

The earth's spin axis is tilted together to its orbital plane. This is the major cause of the seasons. During the rotation when the earth's axis points towards the sun, it develops the summer season for that hemisphere. When the earth's axis points away from the sun, the winter season is expected.

"Rotation" is the term states that an object's spinning motion about its own axis. While "Revolution" states the object's orbital motion around another object.

For example, Earth rotates on its own axis, which denotes a 24-hour day. Earth revolves around the Sun, creating a 365-day year.

Therefore, Earth's seasons are due to the tilt of Earth's axis.

Learn more about Earth, here:


When that axis is tilted towards the sun, the Northern Hemisphere receives more radiation than the Southern and vice versa when the axis is tilted away from the sun. The axis tilt doesn't actually change, but its orientation relative to the Sun changes as Earth moves in orbital revolution around the Sun.

Simulated environment with equal amounts of insects seeds and fruit which flock will be able to eat the most the least and why



This simulation is based on the experiment to examine the natural selection in birds.


Consider a species of birds A which eats only insects. Likewise, species of birds B and C which eats seeds only and fruits only respectively.

When there is equal amount of insects, seeds and fruits then the flock of all three species will be able to eat equal.

But, consider another species of birds D which eats all three of those foods then this species will be able to eat the most while the species eating the single type of food will end up eating the least.


The flocks all started with 10 birds. Flock was X the most successful at feeding, so it will have the greatest number in the second generation. Flock was Z the least successful at feeding and has shrunk the most.


coochie man


What structure provides a protective environment in which the fetus's temperature is well regulated and protects the fetus from friction caused by the mother's movements?



The amnion


-The amnion is a tough, thin membrane that surrounds a developing fetus in mammals, reptiles, and birds. It is the first of the three cavities (amnion, chorion and yolk sac) in the embryo and is formed on 8 dpc.

-In the human body, the amnion is the first of three cavities, including the chorion and yolk sac, that work together to keep the developing fetus nourished and protected.

-The amnion provides a protective environment in which the fetus' temperature is regulated and protects the fetus from friction caused by the mother's movements.


_________is the result when homologous pairs of chromosomes or sister chromatids fail to separate


Nondisjunction is the answer.

Which of the following is the correct hierarchy for the organization of life


The levels of organization of life from the least complex to most complex are enumerated below:

a. Organelles - the basic part of a living organism. It refers to the different structures of the cell, whether prokaryotic or eukaryotic. (Ex. Mitochondria, nucleus)
b. Cells - building blocks of life that are composed of different molecules responsible for the function of an organism. (Example: prokaryotic, eukaryotic cells)
c. Tissues - combinations of cells that carry out a specific function in an organism. (Example: Human skin)
d. Organs - collections of tissues that perform specific functions. (Ex. heart, lungs)
e. Organ Systems - composed of interconnected organs that function as a whole. Many organisms, particularly mamamals, are composed of organ systems. (Ex. respiratory, circulatory systems)
f. Organisms – individual entities that specifically make-up a population. (Ex. Each tree in the forest is an organism, each animal in sea is an organism)
g. Population – species living within a specific location. It could be the same or different species that inhabit a place. (Ex. Birds are species in the forest as well as bears)
h. Community – refers to the total number of populations that inhabit a specific location. (Ex. All of the trees, insects, birds that inhabit the forest are a community)
i. Ecosystem – consists of all living things that function together as a group which also includes the non-living parts of the environment. (Ex. Rain water, nitrogen in the soil)
j. Biosphere – the highest organization of life that consist of all the collection of ecosystems in the planet. It includes the land, air, water, even the atmosphere of the planet.  

Which is an example of a stimulus and the accompanying response of an organism? Question 2 options:

A hawk grabs a branch to gain a perch.

A rat scurries past, and a python strikes at it.

A wildebeest crosses a river during migration.

An earthworm burrows into new, rich soil.



The correct option is B) A rat scurries past, and a python strikes at it.


A stimulus can be described as any thing or event which is detected  as a signal and a response is generated by the body of the organism for that signal. In the scenario discussed in option B)The passing of the rat acts as a signal for the python. In response to the signal, the python generates a response by striking the rat. Hence, it is an example of a stimulus and the accompanying response of an organism.


Which Cell organelle provides instructions to the gold Golgi apparatus on where the substances should be delivered?


The Golgi Vesicles is the correct answer. Hope this helps!:)

What would happen to plates poured with agar that is too hot?


If plates are poured with agar that is too hot, then the agar would kill the bacteria. Agar is the support medium for bacterial and fungal culture, as nutrients, antibiotics, salts and various growth enhancers. It is a dried hydrophilic, colloidal extracted from various species of red algae. Mainly used in cultures for bacteria and other microorganism. Too hot agar would kill the bacteria as the bacteria would get denatured.
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