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mamaluj [8]
3 years ago
12

BRAINLIESTTT ASAP!!!!

Biology
1 answer:
Dima020 [189]3 years ago
5 0
I think I will be able to
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Which cell junction prevents the movement of solutes between the cells of an epithelial layer?
Fudgin [204]

Answer:

Gap junctions

Explanation:

Gap junctions form pores that connect adjacent cells. In this way signaling molecules, ions and other substances can pass through the pore to the adjacent cell. This type of cell junctions are important in cardiac muscle responses, in brain signaling, during childbirth, etc.

5 0
3 years ago
A loopful of bacteria containing 1000 bacterial cells is inoculated into a nutrient broth and incubated. After a negligible lag
Black_prince [1.1K]

Answer:

<h2>a.  1000 X 2^8</h2>

Explanation:

As given;

Initial population of bacteria= 1000;

Log phase growth is exponential phase, period in which bacteria gets double.

Generation time= 15 minutes;

it means, bacteria get double in every 15 minute,

so after 2 hours, bacteria will have 8 generation times;

so the final generation of bacteria is =1000 X 2^8.

Final bacterial generation after two hours = 256,000(1000 X 2^8)

5 0
3 years ago
A trait that occurs in 900 individuals out of a total of 1,800 individuals occurs with a probability of
olchik [2.2K]

Answer: 0.5

Explanation:

Number of people with traits = 900

Total number of individuals= 1800

To find the probability with regards to the question, we divide the number of individuals having the traits by the total population of individuals. This will be:

= 900 / 1800

= 0.5

3 0
3 years ago
Both coal and diamonds are forms of elemental carbon. Coal is brittle while diamonds are considered to be the hardest Of all sub
Art [367]

arbon, as with many elements, can arrange its atoms into several different geometries, or "allotropes." In pure diamond, every carbon atom is covalently bonded to exactly 4 other carbon atoms in a very specific and energetically favorable geometry. The diamond cannot be broken or scratched unless many covalent bonds are broken, which is difficult to do. In another common allotrope, graphite, every carbon atom is covalently bonded to only 3 other carbon atoms, and the atoms are arranged in sheets that are not covalently bonded to each other. The sheets can be broken apart easily, ultimately meaning that graphite can be easily scratched. Coal is composed of particles of different allotropes of carbon, and some "amorphous carbon," which has no defined geometry in its atomic structure. Without a continuous network of covalent bonds, coal is easily scratched (i.e. it is not hard).



8 0
3 years ago
Scott stated the following series of observations. Which represents a theory?
shusha [124]
Stars are balls of hot gases
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3 years ago
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