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icang [17]
3 years ago
11

Any two differences between plant cells and animal cells

Biology
2 answers:
Natali5045456 [20]3 years ago
8 0

Answer:

A plant cell is surrounded by rigid cell wall whereas animal cell does not have cell wall. Presence of a large vacuole in plant cell, which is small in animal cell. Plant cells are larger than animal cells. Plant cells have plastids whereas animal cells do not have plastids.

Phantasy [73]3 years ago
8 0

Answer:

Plant cells:

Have a cell wall

Chloroplasts

Animal cells:

Smaller vacuoles

Irregular shape

Hope this helped!

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Why are humans called heterotrophs
hodyreva [135]
Human are called heterotrophs because they can not prepare their own food from simple carbons sources but obtain ready made food from other organisms like plants etc.
8 0
3 years ago
which is not the neurotransmitter criteria? a) neurotransmitter has to be consumed in the diet. b) chemical must be rapidly inac
Elis [28]

Neurotransmitter has to be consumed in the diet is not the criteria for neurotransmitter. So the correct option is a.

A neuron releases a signaling chemical called a neurotransmitter across a synaptic gap to influence another cell. Any major body component or target cell that receives the signal may be another neuron, but it could also be a gland or muscle cell. These signals enable you to move your limbs, experience sensations, maintain heartbeat, as well as receive and process all the information your body receives from other internal body parts and your environment.

These signals enable you to move your limbs, experience sensations, maintain heartbeat, as well as receive and process all the information your body receives from other internal body parts and your environment.

The axon terminal, a component of the neuron, is where neurotransmitters are found. They are kept inside synaptic vesicles, which have thin walls. Numerous thousands of neurotransmitter molecules can fit inside each vesicle.

To learn more about neurotransmitter visit the link:

brainly.com/question/9725469?referrer=searchResults

#SPJ4

8 0
1 year ago
Define Tidal Voulume and give its amount in ml:
Art [367]

Answer:

Amount of air inhaled or exhaled per breathing stroke is called as tidal volume. Tidal volume is 400 ml for women while for men it is 500 ml.

Explanation:

In respiration, tidal volume is defined as the volume of air that a person inhales or exhales  in one stroke of normal breathing.  

The tidal volume varies in adult men and women.  In resting condition,  tidal volume is 400 ml for women while for men it is 500 ml.

This tidal volume varies with the requirement of the body. During intense physical exercise the amount of gas intake increases in order to full fill the requirement of body and hence the tidal volume increases.  

7 0
3 years ago
What does ++ mean in science & give 1 example.
Alona [7]
It means that the atom or the group of atoms became positive ion by losing two electrons Ex.
{be}^{ + 2}  \: or \:   {mg}^{ + 2}
4 0
3 years ago
Read 2 more answers
Help this question is also confusing
juin [17]

Answer:

<em>Chargaff: </em>The work of Erwin Chargaff has major contributions towards understanding of DNA structure as a double helix. Although, he didn't propose the DNA as a double helix, but he was the first scientist two establish two rules that lead to the discovery of DNA as a double helix. Briefly, he proposed that (1) in any DNA, the amount of Guanine are always equal to the amount of Cytosine and likewise, the amount of Adenine are always equal to the amount of Thymine; and (2) the amount of guanine, cytosine, adenine and thymine bases are different in each species. This observation supported the idea later that DNA is the heriditary material rather than proteins.

<em>Franklin</em><em>:</em> Rosalind E. Franklin is known for her work on understanding the molecular structure of DNA via X-Ray diffraction. For that, she exposed crystallized DNA moleculeto X-rays and some of the rays were deflected back thus forming a diffraction pattern. She was the first scientist that produces real images of DNA explaining its molecular structure. As an example, I have attached the Photo 51 she took while working at King's College London. Her work led to the actual discovery of DNA as a double helix (Watson and Crick Model) which we know today.

<em>Watson and Crick</em>: James Watson and Francis Crick proposed the 3D structure and model of the DNA helix which we know as of today. Precisely, their work explained that DNA is a double-stranded, antiparallel, right-handed helix. Further, the nitrogenous basis proposed earlier (A, T, G, C) are attached to sugar-phosphate backbone via hydrogen bonds. It is one of the major discoveries in molecular biology.

7 0
4 years ago
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