The Eurasian water milfoil is a nonnativespecies, which was once commonly sold as an
aquarium plant, and is now found growing in
many lakes in New York State. It has few
natural enemies, and grows rapidly, crowding
out many native species. This plant ruins fishing
areas and interferes with boating and other
water sports. This is an example of
(1) human consumption of finite resources
(2) an unintended consequence of adding an
organism to an ecosystem
(3) an abiotic factor having a negative effect on
an ecosystem
(4) the introduction of a species that has
increased the long-term biodiversity of an
ecosystem

Answers

Answer 1

Answer: The right answer for the question that is being asked and shown above is that: "(4) the introduction of a species that has increased the long-term biodiversity of an ecosystem." This plant ruins fishing areas and interferes with boating and other water sports. This is an example of the introduction of a species that has increased the long-term biodiversity of an ecosystem

Answer 2

Answer:

Answer:

it would be (2) or B

Explanation:

Because if the plant is commonly sold as aquarium plants then they could have had an unintended consequence of adding an organism to an ecosystem.

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How does the pupillary response prevent injury? What would happen without it?

Answers

Pupils dilate and constrict in order to allow an adequate amount of light to pass through the retina. Both great or small amount of light will damage retina and vision. For example, if eyes are exposed to eyes suddenly, and pupils do not constrict, a great amount of light will pass to the retina and the vision will be damaged. Similarly, if there is no enough light and pupil do not dilate, a small amount of light will pass to the retina and, again, the vision will be damaged.

Part I

In extension to measuring the amount of light that enters the eye, the pupillary light reflex presents a helpful diagnostic tool. It provides for examining the uprightness of the sensory and motor functions of the eye. if your pupils didn't shut suddenly when abruptly disclosed to light, you'll get a tremendous shot of light (simultaneously with UV rays and other possibly dangerous rays) to your retina, which can severely mess up your vision.

Part II

Without it, we would go blind. If there is not sufficient light and the pupils do not dilate, a small number of light will pass to the retina and the image will be damaged.

What is the term for the two upper chambers of the heart?

Answers

The two upper chambers are the atria or auricles. They are the left and right atriums

A fox sees a piece of carrion being thrown from a hawk's nest and rushes to snatch it. The nest is 14.0 m high, and the carrion is thrown with a horizontal velocity of 1.5 m/s. The fox is 7.0 m from the base of the tree. What is the magnitude of the fox's average velocity if it grabs the carrion in its mouth just as it touches the ground? (Assume no air resistance and that ay = g = 9.81 m/s2.)

Answers

vertical d = 1/2 gt±²
14.0 = 0.5(9.81)t²
t² = 14.0/(0.5)(9.81)
t² = 2,85
t = 1.69 sec

horizontal distance traveled by carrion in t = 1.69 sec
d = vt
d = (1.5)(1.69)
d = 2.53 m

fox must travel horizontally = (7.0 - 2.5) = 4.5 m in t = 1.69 sec.
fox speed (avg) = 4.5/1.69 = 2.7 m/s to catch carrion ANS

The islets of Langerhans in the pancreas are responsible for __________________________.a. controlling the amount of iodine that reaches the thyroid gland b. producing epinephrine and norepinephrine c. making hormones that regulate blood sugar levels d. regulating calcium levels in the blood and in the bones

Answers

Answer: c. making hormones that regulate blood sugar levels

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A student wants to answer the question “Does adding calcium powder to soil make pea plants grow faster?” She adds calcium powder to the soil of 12 plants and does not add it to the soil of a second group of 12 plants. She measures the growth of all of the plants in each group for a month. Which statement best summarizes the factors that need to be controlled in this experiment?

Answers

All plants should be the same age and health and be given equal amounts of water and sunlight.

Answer:

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Answers

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