1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yawa3891 [41]
3 years ago
10

What is the difference between a theory and a

Biology
1 answer:
alexandr402 [8]3 years ago
8 0

Answer:

#1-c

#2-d

#3-a

#4-a

Explanation:

You might be interested in
Which type of cell must be affected by a mutation in order for the mutation to be maintained in the gene pool
Vedmedyk [2.9K]
Germ cell's I believe. These are cells that includes half your genome in order to reproduce.
7 0
3 years ago
Write a summary about the cell theory
julia-pushkina [17]

Answer:

Over the next two centuries after the discoveries of Hooke and Leeuwenhoek, biologists found cells everywhere. Biologists in the early part of the 19th century suggested that all living things were made of cells, but the role of cells as the primary building block of life was not discovered until 1839 when two German scientists, Theodor Schwann, a zoologist, and Matthias Jakob Schleiden, a botanist, suggested that cells were the basic unit of structure and function of all living things. Later, in 1858, the German doctor Rudolf Virchow observed that cells divide to produce more cells. He proposed that all cells arise only from other cells. The collective observations of all three scientists form the Cell Theory, which states that:

all organisms are made up of one or more cells,

all the life functions of an organism occur within cells,

all cells come from preexisting cells.

Though no one point of the Cell Theory is more important than another, the theory clearly states that the functions necessary for life occur in the cell. Findings since the time of the original Cell Theory have enabled scientists to "modernize" the theory, including points related to biochemistry and molecular biology. The modern version of the Cell Theory includes:

all known living things are made up of one or more cells,

all living cells arise from pre-existing cells by division,

the cell is the fundamental unit of structure and function in all living organisms,

the activity of an organism depends on the total activity of independent cells,

energy flow (metabolism and biochemistry) occurs within cells,

cells contain hereditary information (DNA) which is passed from cell to cell during cell division,

all cells are basically the same in chemical composition in organisms of similar species.

The Cell Theory is one of the main principles of biology. The points of the theory have been found to be true for all life. As with any scientific theory, the Cell Theory is based on observations that over many years upheld the basic conclusions of Schwann’s 1839 paper. However, one of Schwann’s original conclusions stated that cells formed in a similar way to crystals. This observation, which refers to spontaneous generation of life, was discounted when Virchow proposed that all cells arise only from other cells. The Cell Theory has withstood intense examination of cells by modern powerful microscopes and other instruments. Scientists continue to use new techniques and equipment to look into cells to discover additional explanations for how they work.

Explanation:

Hope I helped!

4 0
2 years ago
Read 2 more answers
Do hawks eat spiders?
erik [133]

Answer:

Yes

Explanation:

6 0
3 years ago
Read 2 more answers
The adaptation that made possible the colonization of dry land environments by seed plants is most likely the result of the evol
Oksanka [162]
The answer is Pollen.
3 0
3 years ago
Question 3
andrew-mc [135]
I’m sure it’s Biome !
8 0
2 years ago
Other questions:
  • How has the study of mitosis affected scientists' knowledge of cancer
    6·1 answer
  • Proteins that are involved in packaging the eukaryotic chromosome into "beads" called __________ are __________.
    6·1 answer
  • What characteristic is shared by both inceptisols and entisols, the soils of flood plains?
    7·2 answers
  • Mrs. Jones, who has been caring for her terminally ill mother for a year now, has continued to work at a demanding job, as well
    10·1 answer
  • An aquifer is an underground layer of rock or sediment that holds water. 2 years ago _____ had a shortage of water in its' aquif
    6·1 answer
  • someone help me with this question please: What is the job of ribosomes? Please answer as soon as possible its related to my pro
    9·2 answers
  • What is an explanation of why producers are always found at the lowest trophic level?
    11·1 answer
  • A normal strand of DNA is shown below, followed by the same strand of DNA after mutations have occurred. Identify the mutation a
    5·2 answers
  • Where does photosynthesis occur?
    7·2 answers
  • NEED ANSWER FAST!!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!