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Veronika [31]
2 years ago
5

Evolution is all of the following

Biology
1 answer:
frosja888 [35]2 years ago
3 0

♛┈⛧┈┈•༶༶•┈┈⛧┈♛♛┈⛧┈┈•༶༶•┈┈⛧┈♛

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In mitochondria cristae act as sites for what​
nikitadnepr [17]

Answer:

Explanation:

The tubular or sheet-like cristae membranes are the main site of oxidative phosphorylation, harboring the complexes of the respiratory chain and the F1Fo-ATP synthase [5], [6], [7], [8], [9]. Fig. 1. Mitochondrial contact site and cristae organizing system (MICOS) in yeast.

4 0
2 years ago
6. Which generations saw a population altering incident? Use your imagination to invent a
elixir [45]

Answer:

Which generations saw a population altering incident? Use your imagination to invent apossible environmental incident that could have caused this shift in populations. The white bears saw a population altering incident because in generation 6 the number wentdown pretty unexpectedly.

8 0
3 years ago
Explain the thermal properties of water
Zinaida [17]

Answer:

A glance of earth taken from space will depict it blue. This blue colour is actually water, the major part of the earth is covered with water. We need water for almost everything, for example- drinking, bathing, cooking etc and therefore we should know about the properties of water. 65 % human body is composed of water. Water is essential for the survival of life on earth. Water is distributed unevenly on the earth’s surface. It forms a major solvent and dissolves almost every polar solute. So let us have a look at its properties.

Physical properties of water : Water is a colourless and tasteless liquid. The molecules of water have extensive hydrogen bonds resulting in unusual properties in the condensed form. This also leads to high melting and boiling points. As compared to other liquids, water has a higher specific heat, thermal conductivity, surface tension, dipole moment etc. These properties form the reason for its significance in the biosphere. Water is an excellent solvent and therefore it helps in the transportation of ions and molecules required for metabolism. It has a high latent heat of vaporization which helps in the regulation of body temperature

Chemical properties of water: Amphoteric nature:

Water can act as both acid and base, which means that it is amphoteric in nature.

Example:

Acidic Behaviour: H2O(l)+NH3(aq) ⇌ H3O+(aq)+NH+4(aq)

Basic Behavior: H2O(l)+H2S(aq) ⇌ H3O+(aq)+HS−(aq)

Redox reactions:

Electropositive elements reduce water to hydrogen molecule. Thus water is a great source of hydrogen. Let us see an example in this case:

2H2O(l)+2Na(s)→2NaOH(aq)+H2(g)

During the process of photosynthesis, water is oxidized to O2. As water can be oxidized and reduced, it is very useful in redox reactions.

Hydrolysis reaction

Water has a very strong hydrating tendency due to its dielectric constant. It dissolves many ionic compounds. Some covalent and ionic compounds can be hydrolyzed in water.

Explanation:

7 0
2 years ago
Which type of stimulus following a behavior removes something that is unpleasant? positive reinforcer negative punisher positive
Zolol [24]

The type of stimulus following a behavior removes something that is unpleasant is the negative reinforcer.

Stimulus is any signal. This can be in the form of touch, smell, taste, etc. This stimulus triggers the nerve cells of the body that send to signals to the brain to generate a response. For example, when one person touches a hot utensil, the touch of heat acts as a stimulus, where the brain sends response in the form of instantly removal of the hand.

Negative reinforcement is the response towards a stimuli that has not yet been received. For example, taking a medicine before any disease appears  is the acts of negative reinforcement.

To know more about negative reinforcement, here

brainly.com/question/14299460

#SPJ4

5 0
1 year ago
What is the probability of drawing a king first and then a jack from a standard deck of cards with replacement?
marta [7]

the chances of that happening are 8/52 which reduces to 2/13. So not very good

4 0
3 years ago
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