Explanation:
Scientists didnt belive that there are cells untill robert hooke (1665). He observed the cells in a cork slice with the help of a PRIMITIVE microscope
Leeuwenhoek (1674), with the help of an improved microscope, discovered free living cells in pound water for the first time.
It was robert brown in (1831) who discovered the nucleus in the cell.
Purkinjie in 1839 coined the term 'protoplasm' for the fluid substance of the cell.
THE CELL THEORY, that all plants and animals are composed of cells and that the cell is the basic unit of life, was presented by two biologists, schleiden (1838) and schwann(1839). The cell theory was fuether expanded by virchow (1855) by suggesting that all cells aris form PRE-EXISTING cells. With the discovery of the electron microscope in 1940,it was possible to observe and understand the complex structure of the cell and its various organelles.
Well, thats the history of the discovery of cells.
Answer:
1) Weathering breaks down and dissolves rocks.
2) Wind and Rain as well as erosion.
3) Gravity, Wind, Water.
The properties of water that contribute To The formation of the meniscus are:
Meniscus is defined as the upward or downward curve located at the surface of a liquid in a tube.
When water is placed in a tube or wettable container, a concave or downward meniscus is formed due to surface tension created in water through the following properties of water:
- Cohesion: This is the tendency of water molecules to stick to itself.
- Adhesion: This is the tendency of water molecules to stick to other molecules that are charged or polar.
Therefore, the cohesion and adhesion of water molecules contributes to the formation of meniscus.
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brainly.com/question/13437383
<span>heterozygous / homozygous refers to whether both alleles for a gene are the same. The organism is homozygous if both alleles are the same - that is, either both are dominant or both are recessive. The organism is heterozygous if the alleles are different - that is, if one allele is dominant and the other allele is recessive..
the answer to the questions is A. </span><span>One parent was heterozygous for eye color and the other was homozygous with red eyes.</span>
Hello again!
If plants are purebred, then they are homozygous. This means that they have the exact same genes in one pair: for example, AA. If they are both purebred, then the dominant gene will win out every time. The answer for this question, then, would be D. Here is a diagram to help you!
