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Artist 52 [7]
2 years ago
14

Plsss Help Will mark brainliest

Biology
2 answers:
Harlamova29_29 [7]2 years ago
8 0

Answer:

it allows some but not all

hope that helped

professor190 [17]2 years ago
7 0

Answer:

Only some particles are allowed through the sieve/colander, which is why they demonstrate the property of selective permeability.

Explanation:

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Which is an example of a chemical change?
igor_vitrenko [27]

Answer:

when you put chemicals in water and the water gets chemically changed?

7 0
3 years ago
Read 2 more answers
Why is it important to stain youngcultures of bacteria with<br> the grain stain?
uranmaximum [27]

Answer:

Because older cultures of gram-positive bacteria tend to lose their ability to retain crystal-violet in the peptidoglycan of their cell walls and can be confused with gram-negative bacteria.

Explanation:

Gram staining is used to differentiate between two major groups of bacteria. Gram-positive and gram-negative, these bacteria differ in the amount of peptidoglycan in their cell walls. Gram-positive bacteria have a higher amount of peptidoglycan, which absorbs the violet crystal complex used in gram staining, staining them purple/violet. Old cultures of gram-positive bacteria tend to lose the ability to retain the violet crystal and are stained by safranine, staining them red/pink and appear to be gram-negative.

8 0
3 years ago
Between two organisms in
Ainat [17]

Answer:

This question is not well placed. It should be " a relationship between two organisms in which both benefit is called".

The answer is SYMBIOSIS

Explanation:

Living organisms tend to interact with one another in their natural environment. This interaction are of different types depending on the effect on the involved organisms. One of those interactions is SYMBIOSIS. Symbiosis is a relationship between two organisms in which both of the organisms benefit from one another.

An example is the relationship between the "CATTLE AND EGRET". The cattle provides food for the egret when they feed on the insect parasites on their body while the egret helps the cow get rid of detrimental parasites.

7 0
3 years ago
In what type of asexual reproduction are seeds produced even without the joining of sperm and eggs?
dem82 [27]
This type of asexual reproduction is called apomixis. 
Apoximis is reproduction by special generative tissues without fertilization. It includes parthenogenesis in animals, in which the new individuals develop from unfertilized egg, and apogamy in certain plants in which the generative tissues may be the sporophyte or the gametophyte. 
6 0
2 years ago
Whats the difference from the first and second law of thermodynamics
Aleks [24]

Answer:

Explanation:

the first law is the law of conservation of energy which basically means energy can't be created or destroyed in an isolated system.

the second law is that the entropy always increases in the isolated system. entropy is the measurement of the units thermal energy per unit temp.

7 0
3 years ago
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