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3 years ago

A substance that influences the reaction but does not participate in the reaction is a

Biology

2 answers:

valkas [14]3 years ago

7 0

The answer will be: Catalyst

Natali5045456 [20]3 years ago

3 0

A catalyst.

A catalyst speeds up a chemical reaction by increasing the reaction's rate. It does so by decreasing the reaction's required activation energy, which allows the products of the reaction to more easily combine. During this whole process, the catalyst does not change.

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How much energy is produced when the sun

adell [148]

Answer:

$E=1.53\times 10^{17}\ J$

Explanation:

We need to find the energy produced when Sun converts 1.7 kg of mass into energy. Einstein's mass energy relation is given by :

$E=mc^2$

c is speed of light

$E=1.7\times (3\times 10^8)^2\\\\E=1.53\times 10^{17}\ J$

So, energy produced is $1.53\times 10^{17}\ J$ .

7 0

3 years ago

honeybee is considered as the most useful insect for human beings.justify this statement with any three reasons

Oduvanchick [21]

Answer:

Polinate plants, trees and food
They give us honey
bees are responcible of pollinating 15 billion of just US crops and 200 million pounds of UK crops. showing their contribution to agriculture

6 0

2 years ago

What is the major difference between primary and secondary succession?

Brums [2.3K]

Primary succession starts with bare rock which is broken down by either lichen or moss to make soil while secondary succession starts with developed soil

3 0

3 years ago

An 86-year-old client with dementia is being discharged after treatment for a hip fracture. in reviewing the notes, the nurse id

hoa [83]

The nurse should arrange an immediate home visit with the visiting nurse service and the social worker.

Carrying for the person with dementia is not that simple, it’s even challenging and stressful. Frustration and stress may negatively impact on the health of the client. So, caregiver must be someone calm and stable. Because of that, a person with moderate intellectual disability might not be the most appropriate for this duty.

7 0

3 years ago

Which type of epithelium is composed of multiple layers, including an apical layer containing tall, slender cells?

Mademuasel [1]

The question is incomplete as it does not have the options which are:

Simple squamous
Simple columnar
Pseudostratified squamous
Stratified squamous
Stratified columnar

Answer:

Stratified columnar

Explanation:

Epithelial tissue is the tissue formed by the cells which form a layer of cell and lines the lumen of the organ and also covers the organs. The epithelial tissue can be classified based on the number of layer and shape of the cell.

In the given question, the shape of the cell is slender and are tall therefore are called columnar. The cells form more than one layer or multiple layers therefore form stratified layers.

Therefore, the epithelial tissue formed by these slender shaped multiple layers is known as the stratified columnar layer. The stratified columnar is present in the respiratory tract and the digestive tract.

Thus, Stratified columnar is the correct answer.

4 0

3 years ago