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
Nezavi [6.7K]
3 years ago
10

What technological advancement was necessary before scientists could begin to observe cells? A. invention of the microscope B. i

nvention of the balance C. invention of the telescope D. invention of the thermometer
Biology
2 answers:
hammer [34]3 years ago
6 0

the correct answer would be

A) invention of the microscope

Flura [38]3 years ago
3 0

A : microscope will be your answer

You might be interested in
The difference between generalized and specialized transduction is:___________
Rzqust [24]

Answer: option D

In generalized transduction, any DNA can be moved while in specialized transduction certain DNA from the phage site is moved.

Explanation:

Transduction is the process where foreign DNA is added to a cell by a virus or viral vector.

Transduction is divided into two, generalized and specialized.

Generalized transduction is a process where any DNA can be transferred by the virus in the cell while specialized transduction is a process where a fragment of the DNA near the phage site can be moved.

6 0
3 years ago
Make a list of objects, products, and any other items around your house where plants were involved in the production of the item
matrenka [14]

Answer:   This is all I could think of, but I hope this helps a litttle

Explanation:

Shampoo

rubber

medicine

tea

clothes

paper

4 0
3 years ago
If a woman has had a intercourse, and she missed a menstrual period by more than 14 days, she probably is pregnant. True or Fals
-BARSIC- [3]

Answer:

true

Explanation:

3 0
3 years ago
Read 2 more answers
Two cell divisions mitosis or meiosis
Troyanec [42]
Cell division is the process by which a parent cell divides into two or more daughter cells.[1]Cell division usually occurs as part of a larger cell cycle. In eukaryotes, there are two distinct types of cell division: a vegetative division, whereby each daughter cell is genetically identical to the parent cell (mitosis),[2] and a reproductive cell division, whereby the number of chromosomes in the daughter cells is reduced by half to produce haploid gametes(meiosis). Meiosis results in four haploid daughter cells by undergoing one round of DNA replication followed by two divisions. Homologous chromosomes are separated in the first division, and sister chromatids are separated in the second division. Both of these cell division cycles are used in the process of sexual reproduction at some point in their life cycle. Both are believed to be present in the last eukaryotic common ancestor.

Prokaryotes (bacteria) undergo a vegetative cell division known as binary fission, where their genetic material is segregated equally into two daughter cells. All cell divisions, regardless of organism, are preceded by a single round of DNA replication.

For simple unicellular microorganisms such as the amoeba, one cell division is equivalent to reproduction – an entire new organism is created. On a larger scale, mitotic cell division can create progeny from multicellular organisms, such as plants that grow from cuttings. Mitotic cell division enables sexually reproducing organisms to develop from the one-celled zygote, which itself was produced by meiotic cell division from gametes. After growth, cell division by mitosis allows for continual construction and repair of the organism.[3] The human body experiences about 10 quadrillion cell divisions in a lifetime.[4]

The primary concern of cell division is the maintenance of the original cell's genome. Before division can occur, the genomic information that is stored in chromosomes must be replicated, and the duplicated genome must be separated cleanly between cells.[5] A great deal of cellular infrastructure is involved in keeping genomic information consistent between generations.




8 0
3 years ago
Read 2 more answers
Why is it important to narrow the formality gap for effective validation of interactive properties of systems?
NeX [460]
Area specialists approving the framework may not comprehend plan notations.Real-world prerequisites are more vital than outline notations.It is difficult to believe in subjective proofs.So that psychological researchers can comprehend the custom hole.
4 0
3 years ago
Other questions:
  • I NEED HELP QUICK, PLEASE!!!
    11·2 answers
  • Question 6 of 20
    15·2 answers
  • Lyme disease is a bacterial infection transmitted to humans from ticks.
    5·1 answer
  • Outside the
    10·1 answer
  • A common column material used in size-exclusion chromatography is dextran, a polysaccharide of glucose. Which type of interactio
    10·1 answer
  • Biological macromolecuels fall into four main classes.<br><br> a. True<br> b. False
    10·1 answer
  • Which group of plants lacks true roots, stems, and leaves?
    8·2 answers
  • Can someone pls help me with these two question pls I would really appreciate it. I’ll give brainliest to whoever answers it cor
    15·2 answers
  • Match the organelle with its function.
    8·1 answer
  • Which traits in the investigation showed incomplete dominance?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!