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Mrrafil [7]
3 years ago
15

1. What did Janssen, Hooke, Leeuwenhoek, and Schleiden do in the study of the cell?

Biology
1 answer:
snow_lady [41]3 years ago
7 0
1. All living things are made of cells2. All living organisms are composed ofcells.
3. Both organisms are composed of cells, the basic unit of life, with each cell surrounded by a cell membrane. 
4. ribosomes Catalyst for protein synthesis, nucleous, Creates ribosomes, nucleus <span>Control center of the cell</span>.
5.
6. Prokaryotes are divided into two domains, Archaea and Bacteria.
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All living things contain carbon.which of the following statements is true about carbon atoms?
vfiekz [6]

I. Each carbon atom can form single bonds with up to four other carbon atoms. II. Each carbon atom can form double bonds with up to two other carbon atoms. III. Carbon atoms can join together to form chains or rings. IV. A single molecule of some compounds can contain thousands of carbon atoms.

Answer:

All the given choices

Explanation:

Carbon is a very interesting element which is the backbone of most organic compounds.

Organic compounds are made up of carbon. Carbon forms a wide range of compound due to the following properties;

  • An atom of carbon has 4 valence electrons and can bond with 4 other carbon.
  • Carbon can form single, double and triple covalent bonds.
  • They can join together to form rings or chains.
6 0
3 years ago
When did multicellular organisms appear
yanalaym [24]
When a single cell organism splits in too
8 0
4 years ago
explain the differences between normal air circulation and how the air behaves when a temperature inversion occurs
dybincka [34]

Temperature inversion or thermal inversion is a phenomenon during which the temperature increase when there is an increase in the altitude. It is an uncommon process that happens in the troposphere-the layer of atmosphere closest to the earth.    

When there is an increase in temperature with altitude, that warm air acts as a blockage for the cool air near the surface of the earth. So this is just opposite to the normal behavior of the air, where it becomes cooler with an increase in altitude.

So how air circulation behaves during inversion?

So as we said that the cool air nearer to the earth will be blocked by a layer of warm air. This blockage will hinder the circulation of air upwards from the lower layers. Let’s see how:

• As we know that, warm air is less dense and more buyout than cool air and normally less dense warm air is close to the earth and cool air is in above layers. But when the process is reversed, this warm air acts like a blanket for the proper circulation of air. Due to this, many environmental pollutants which normally leave the earth during air circulation get trapped in our air.  

• The trapped environmental pollutants like nitrogen oxides and hydrocarbons get convert into harmful ozone that ultimately deteriorates the quality of air and causes problems like smog.

• The improper air circulation also causes suspension of the harmful gases near the earth instead of allowing them to leave the earth atmosphere. This ultimately causes air pollution.  

• When smoke will not rise, carbon dioxide will be build up in the atmosphere; this will cause greenhouse effect and global warming.

Therefore, air circulation behaves very different during temperature inversion process and poses hazardous effects on global climate.

Hope it helps! :)

4 0
3 years ago
If I were to die right now in fifteen minutes what part of me would decay first.?
Jet001 [13]

Answer:

depends on how u die

Explanation:

eyes open, then ur eyes

5 0
3 years ago
How might living in the sahel be different from living in a rain forest?
olya-2409 [2.1K]
The rain forest will have a lot of rain and snakes and the sahel will not
6 0
3 years ago
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