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3 years ago

Which feature or property of water allows plants to draw liquid water up from their roots?

Biology

2 answers:

allochka39001 [22]3 years ago

7 0

The answer is d / watwe molecules connect through hydrogen bonds

Aleks04 [339]3 years ago

4 0

Answer: Water molecules connect through hydrogen bonds.

This is because of hydrogen bond the molecules of water stick to each other and this phenomenon is known as cohesion.The roots of the plants acts as capillary. Due to the cohesion property of water all the water present in the soil seems to be a single molecule of large size. The property of water to stick to another substance is known as adhesion. Due to this property the water sticks to the roots of the plant. The property of cohesion along with adhesion is responsible to draw water up from roots.

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Which of Virginia's watershed protection programs builds structures that protect areas from flooding?

Blababa [14]

Answer:

The Dam Rehabilitation Program

Explanation:

The Small Watershed Rehabilitation Amendments of 2000, which was well termed as the Dam Rehabilitation Program is mainly an amendment to PL-566 giving power and privilege to the Secretary of Agriculture to give aid to possessor of public dams created formerly under PL-566, PL-534, the RC&D Program and the Pilot Watershed Program.

This program was established in respect to the high levels of aging dams (greater than 11,000) esrablished across the nation from 1948 with a increasing amount that requires rehabilitation to keep up with the several importance they provide.

Dam Rehabilitation:

In Virginia, 150 dams is considered as belonging to the state’s landscape/infrastructure via the PL-566, PL-534, and Pilot Watershed programs. One care infer that, one-third of these dams requires maintenance, if not repaired, could lead to high dangers of environmental, economic, and social effects. The dams were constructed to preserve agricultural lands and small towns and regions from the endangering impacts of flooding. It also acts as a source of water supply and recreational opportunities, protecting fish and wildlife habitat, and preserving of water quality.

Some of the dams in the Dam Rehabilitation program in Virginia includesMarrowbone Creek in Henry County; Inch Branch, Robinson Hollow, Toms Branch, Mills Creek, Todd Lake, and Hearthstone Lake in Augusta County; and Royal Lake, Lake Barton, Woodglen Lake, and Huntsman Lake in Fairfax County.

4 0

3 years ago

Read 2 more answers

The first cells to initiate an electrical signal in the heart is the

Lady_Fox [76]

Answer:

Answer is Sinoatrial node, SA.

Explanation:

The sinoatrial node, SA, is known to be a group of cells which are found at the top of the heart.

The electrical signal that is initiated by the sinoatrial node bring about or stimulates the atria and then the ventricle of the heart.

It should be noted that, the sinoatrial node are regarded as the pacemaker cells.

3 0

3 years ago

using the food web, describe two complete food chains that include a ptoducer, consumer, and descomposer.

Damm [24]

Answer:

A food chain is a representation of what eats what in an ecosystem.

A combination of food chains is termed as a food web.

Example of two food chains in a food web are :

Example No 1:

Plant----- Grasshopper------ Frog---snake--- bacteria

Example No 2:

Plant---- rabbits---- fox---- bacteria

In a food chain, producers are usually plants and algae which are able to make their own food. Consumers feed on the plants. In example no 1, grasshoppers are primary consumers, frogs are secondary consumers, snakes are tertiary consumers.

In example no 2,plants are producers, rabbits are primary consumers and foxed are secondary consumers.

Decomposers are organisms that feed on the dead organisms in a food chain. In both the examples of food chain, bacteria are the decomposers.

7 0

2 years ago

Read 2 more answers

Mars had an orbital period of 1.88 years. In two or more complete sentences,explain how to calculate the average distance from m

Vanyuwa [196]

This is an interesting problem involving astronomy, in fact, simple physics.
Let r=distance of sun to mars, in metres

Mars had an orbital period of 1.88 years.
=>
tangential velocity, v, of the planet, in m/s is
$v=\frac{2\pi{r}}{T}$
 $=\frac{2\pi{r}}{1.88*365.25*86400}$ m/s, accounting for leap years
$=3.371*10^{-8}\pi{r}$ m/s

The centripetal force, Fc, generated is
$Fc=\frac{mv^2}{r}$
where m=mass of mars = 6.39*10^(24) kg
$=\frac{mv^2}{r}$
$=\frac{6.39*10^{24}v^2}{r}$
$=7.26168*10^9\pi^2r$

The gravitation pull from the sun, Fg, is given by
$Fg=\frac{GMm}{r^2}$
where G=grav. const., =6.67408*10^(-11) m^3 kg^(-1) s^(-2)
M=mass of sun=1.989*10^(30) kg
$=\frac{6.67408*10^{-11}1.989*10^{30}6.39*10^{24}}{r^2}$
$=\frac{8.4826*10^44}{r^2}$

Since the radial distance is in equilibrium, the average distance, r can be found by equation Fc=Fg and solving for r:
Fc=Fg
=>
$7.26168*10^9\pi^2r=\frac{8.4826*10^44}{r^2}$
Solving for the real root:
$r^3=\frac{8.48256*10^44}{7.26168*10^9*%pi^2}$
$=\frac{1.1681263*10^{35}}{\pi^2}$
=2.279*10^11 m

5 0

3 years ago

10. Which type of homeostatic mechanism is the most common in the human body?

natima [27]

Answer:

Explained below:

Explanation:

Type of homeostatic mechanism in the human body which is most common is the maintenance of body fluids, dilute and solutions of water that carry liquefied chemicals found in internal part of the cell and the surroundings of them. the internal part of the cells, it is named as intracellular fluid, the external part of the cells, it is named as extracellular fluid. All the materials such as oxygen, nutrients, proteins, and ions, are needed for survival.

8 0

2 years ago