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Nina [5.8K]
3 years ago
8

Is this correct...? I need help..

Biology
1 answer:
Brilliant_brown [7]3 years ago
7 0
Yes, it is! Good Job! :)
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Like all forms of life on Earth, all microbial cells perform three major types of activities: __________.
pashok25 [27]

Answer:

4. metabolism, growth, and evolution

Explanation:

Living organisms show different characteristics like respiration, movement, metabolism, growth, evolution, respiration, excretion, nutrition. Most of the microbes are microscopic and unicellular which means they are made up of only one cell but they are also living.

They perform three major types of activities like metabolism, growth, and evolution. This can be seen by culturing bacteria on suitable media. So in the medium, it can be observed that they consume the food present in media and extract energy from it through metabolic activities and are showing growth. All micro-organisms evolve due to mutation. So the correct answer is 4.

3 0
4 years ago
Describe the motion shown in the lines
Bogdan [553]

Answer:

Solution

For figure (a)

During interval AB Velocity is +ve, so the particle is moving in +ve direction, but it is slowing down as acceleration (slope of v-7 curve) is negative.

During interval BC Particle remains at rest as the velocity is zero. Acceleration is also zero.

During interval CD Velocity is -ve, so the particle is moving in -ve direction and is speeding up as acceleration is also negative.

For figure (b),

During interval AB Particle is moving in +ve direction with constant velocity and acceleration is zero.

During interval BC Particle is moving in +ve direction as velocity is +ve, but it slows down until it comes to rest as acceleration is negative.

During interval CD Velocity is -ve so the particle is moving in -ve direction and is speeding up as acceleration is also negatived

5 0
3 years ago
in the dna in chromatin, substitution mutations: a. are at a maximum in the nucleosomes b. are rarely seen, but deletion mutatio
Gelneren [198K]

In chromatin, substitution mutations are most common in linker regions. Option d is the correct answer.

Mutation by substitution When one nucleotide base is replaced by another, this occurs. Mismatch mutation A type of substitution mutation in which a single nucleotide is replaced, resulting in the coding of an incorrect amino acid, which usually results in a malfunctioning protein. Silent mutations are the result of genetic code redundancy (degeneracy): This is false, as silent mutations are the result of a base substitution that has no discernible effect on a protein's amino acid sequence.

Learn motre more about subsitution here:

brainly.com/question/29383142

#SPJ4

7 0
1 year ago
​the assortative mating theory proposes that initial mate selection is based primarily on
ella [17]
The answer is similarity

Hope help!
5 0
3 years ago
Două întrebări la sistemul respirator​
Viefleur [7K]

Answer:

How respiratory system works?

What are the components of respiratory system?

Explanation:

Our lungs expand when we breathe in through our nose and mouth. That air moves down our trachea, through your bronchi and into the bronchioles, where it enters your alveoli where blood capillaries are passes which load oxygen and unload carbondioxide gas which can be removed from our body through exhalation. Nose, mouth, throat (pharynx), voice box (larynx) , windpipe (trachea) , large airways (bronchi)  and lungs are the main components of our respiratory system.

3 0
3 years ago
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