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frez [133]
3 years ago
5

Diffusion always causes particles to move from a reigon of what concentration

Biology
1 answer:
alexandr402 [8]3 years ago
8 0
Always high-to-low concentration for diffusion. I hope I helped ^u^
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Why do many evolutionary biologists believe that mycorrhizal fungus made it possible for aquatic plants to make the evolutionary
mrs_skeptik [129]

Answer: The vulnerable embryo must be sheltered from desiccation and other environmental hazards. In both seedless and seed plants, the female gametophyte provides protection and nutrients to the embryo as it develops into the new generation of sporophyte.

Explanation:

i think this may help

8 0
2 years ago
Select all that apply.
natita [175]
Number 3 and 4 are the correct answers hope this helped
5 0
3 years ago
Match the descriptions to the processes.
UNO [17]

Answer:

A) Ice cream starts dripping down the sides of an ice cream cone: melting

B) Fog is created by using dry ice:  sublimation

C) Frost forms on trees on a very cold day: deposition

D) The mirror gets fogged up when you breathe on it: condensation

E) Your wet hair dries after a few minutes: evaporation

F) Liquid glass cools and hardens : freezing

Explanation:

Sublimation process where solid state changes to gaseous state by escaping liquid state.

Deposition process where gaseous state changes to solid state by escaping liquid state.

Condensation process where gaseous state changes to liquid state.

Melting is the process where solid state changes to liquid state.

Evaporation process is a process where liquid state changes to gaseous state.

Freezing is the process in which liquid changes to solid state.

3 0
3 years ago
Read 2 more answers
Materials can move across capillary walls by _________.a. reabsorption. b. diffusion. c. filtration. d. All of the answers are c
Pavlova-9 [17]

Answer:

The correct option is D) All of the answers are correct.

Explanation:

The walls of the capillaries are thin due to which the processes of diffusion and filtration becomes lot easier in them. Gases such as oxygen and carbon dioxide cross the capillary walls through diffusion processes. As the walls of the capillaries are much thinner than that of veins and arteries hence. the processes of filtration and re absorption occur easily through them.

3 0
2 years ago
For a particular species of wolf, 55% are female, 20% hunt in medium-sized packs, and 15% are both female and hunt in medium-siz
lorasvet [3.4K]
*Given
Percent of the wolves which are female - 55%
Percent of the wolves which hunt 
     in medium-sized packs                      - 20%
Percent of the wolves which are both
     female and hunt in medium-sized
     packs                                                  - 15%


*Solution

<u>Assuming that there is a total of one hundred wolves in the species, </u>

1. Since percent (%) means "per 100" or "for every 100" then, 

a. The number of female wolves is

    (55 female wolves / 100 wolves) * 100 wolves total = 55 female wolves

b. The number of wolves that hunt in medium-sized packs is

    (20 wolves / 100 wolves) * 100 wolves total = 20 wolves

    Note that the 20 wolves is a mixture of male and female wolves. 

c. The number of female wolves that hunt in medium-sized packs is

    (15 female wolves / 100 wolves) * 100 wolves total = 15 female wolves

2. Because there is a total of 55 female wolves in the species, and 15 of these wolves hunt in medium-sized packs, then the number of female wolves that do not hunt in medium-sized packs is, 
 
    55 female wolves total - 15 female wolves hunting  = 40 female wolves not
                                                in medium-sized packs         hunting in medium
                                                                                              sized packs

3. To find the proportion, we can express the answer in terms of percent (%) or in fraction, which is usually how proportions are expressed. 

For every 100 wolves, there are 40 female wolves that do not hunt in medium-sized packs. This can be expressed as a proportion of 
 
                                       <span> <u> 40  </u>
</span>                                        100

and simplified by dividing both the numerator and denominator by 10, we get,

                                     <span><u> 40/10  </u>
</span>                                     100/10

                                       <span><u>  4   </u>
</span>                                        10

When this is expressed in percent, we multiply the fraction or proportion by 100% to get, 

                                       <span><u>  4   </u>   x    100%     = 40%
</span>                                        10

Thus, the proportion of female wolves that do not hunt in medium sized packs is 4/10 or 0.4. When expressed as percent, this is 40%. 
  
5 0
3 years ago
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