BIOLOGY HIGH SCHOOL

Which best defines homeostasis? 1. modifying the external environment
2. maintaining a stable internal environment
3. controlling what enters and exits the cell
4. movement of materials into the cell

Answers

Answer 1
Answer:

The answer is (2) maintaining a stable internal environment.

Homeostasis is the process by which an organism tries to stabilise the internal body metabolism in response to external disturbances or changes. Example, when a person goes out into the snow, his body process will get overwhelmed by the sudden drop in the temperature. The body will try to stabilise its internal temperature by producing more heat in response to the cold exterior.

Answer 2
Answer:

Answer:

B. maintaining a stable internal environment

Explanation:

Related Questions

In a strike-slip fault, the rocks on either side of the fault slip past each other sideways with littlea. noise. b. shaking. c. up-or-down motion. d. movement.
Which of these can be found in both gymnosperms and angiosperms?A)vascular tissue and flowers B)vascular tissue and seeds C)flowers and vascular tissue D)enclosed seeds and flowers
HELP!Which method would be best to separate a mixture of sugar and water?separation by densityseparation by particle sizefiltrationdistillation
What is the pH range of highly acidic substances?
The science of grouping and naming organisms is called what.

Which concept is shown by the relationship between the Oahu Amakihi and the Kauai Amakihi?adaptation

competitive exclusion

predator-prey

niche

Answers

The concept that is shown by the relationship between the Oahu Amakihi and the Kauai Amakihi is competitive exclusion.

Answer:

the correct answer is A competitive exclusion

Explanation:

___________ is a structure that contains spores and is located on the underside of fern leaves. Basidium Bacillus Cilium Sorus

Answers

Sorus is a structure that contains spores and is located on the underside of fern leaves.

what happened to the water vapor when the earth cooled 3 billion to 3.5 billion years ago ? What formed ?

Answers

some of the water became clouds and some became small lakes or rivers

For glycolysis to produce ATP when no oxygen is present, it is necessary for cells to convert _____ to _____.A. ATP to NAD+
B. ATP to ADP
C. NADH to ATP
D. NADH to NAD+

Answers

The answer is D. NADH to NAD+

When no oxygen is present, anaerobic respiration occurs.It is the only way to produce ATP in this condition.NAD+ is necessary because it is converted into NADH and at the same time ADP is converted to ATP in the reaction of pyruvate synthesis from glucose.Therefore, NADH must be converted to NAD+ in order to have NAD+ always present in the cell.

A failure of the red-sensitive nerves in the eye to respond to light properly causes A. astigmatism.
B. color blindness.
C. chromatic aberration.
D. farsightedness.

Answers

When our red-sensitive nerves in our eyes cannot respond to light properly this will result in color blindness - b. 

When either of the three light-sensitive nerves in our nerve tracts; either green, red or blue, we become to color blind for a certain spectrum of light from nature. 

Leaves need to be elevated so they are exposed to sunlight for photosynthesis. Which part of the stem grows to make this possible?

Answers

It`s the apical meristem that makes organs like leaves or flowers grow.
Other Questions
Jaguar vs Sea-Going Crocodile who do you think will win?I think that the crocodile will win in both land and water because its way to aggressive and fierce than the jaguar. One bite from the croc will shatter the jaguars bones, and it has tough armor. The jaguar is also at a size disadvantage and is outclassed in terms of weaponry. So who do you think will win?
Give three functions of the cell surface membrane. (plasma membrane)
A forest area is being affected by the sudden removal of its tall trees. As a result of this fast change, a species of eagle that nests in tall trees couldbecome extinct O quickly adopt a new trait O create a random mutation O change its nesting behavior
Why do deciduous trees lose their leaves?a. Deciduous trees lose their leaves to prevent oxygen loss. b. Deciduous trees lose their leaves to defend from predators. c. Deciduous trees lose their leaves to prevent nutrient and water loss. d. Deciduous trees die in winter.