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
Lena [83]
3 years ago
12

Theodor Schwann and Matthias Schleiden were major contributors to the Cell Theory as we know it. In 1839 Schwann published a boo

k including a summary of his observations into three conclusions about cells: 1. The cell is the unit of structure, physiology, and organization in living things. 2. The cell retains a dual existence as a distinct entity and a building block in the construction of organisms. 3. Cells form by free-cell formation, similar to the formation of crystals (spontaneous generation). Which one of Schwann's statements is no longer accepted as truth? A) Cells are found in both living and nonliving entities. Eliminate B) Cells are distinct identities, not just building blocks. C) Cells form via free cell formation from existing cells only. D) Cells come from free cell formation similar to spontaneous generation.
Biology
2 answers:
zaharov [31]3 years ago
7 0

Answer:

D

Explanation:

Cells come from free cells

kakasveta [241]3 years ago
4 0

Answer:

D) Cells come from free cell formation similar to spontaneous generation.

You might be interested in
Which part of the brain controls balance?
olchik [2.2K]

Answer:

Cerebellum

Explanation:

The cerebellum, in the back of the brain, controls balance, coordination and fine muscle control (e.g., walking).

4 0
2 years ago
Read 2 more answers
I offer (20pts) The role of an enzyme in chemical reaction is to change which of the following?
ki77a [65]

The role of an enzyme is to B change the activation energy of the reaction. Specifically, they increase the general speed of all reactions and are made of proteins.

7 0
3 years ago
Jessica has just moved from Orlando, Florida, to Denver, Colorado. What condition is she now experiencing that is stimulating th
sergij07 [2.7K]

Answer: Hypoxia

Explanation: hypoxia induces the production of erythropoietin, which is a hormome produced by the kidneys to help increase the productiom of red blood cells in the body. In Jessica's case, she might be experiencing this due to a change in ultitide whereby her body needs more oxygen than it originally gets (crllular hypoxis), therefore, her body signals for more red blood cell production. The erythropoietin will then be secreted and more red blood cells will be formed by the bone marrow through the hormonal action.

3 0
3 years ago
Reproductive structures of a plant are produced by the plant's leaves.
Mumz [18]
This statement is false. 
The reproductive structures are able to be produced in the roots. 

I hope this has answered your question, good luck on your assignment. 
7 0
3 years ago
We covered transcription and translation in our lab this week. Below, you'll find several steps required for protein synthesis.
AlladinOne [14]

Answer:

The correct answer is :

  • The 2 strands of DNA separate
  • mRNA is built based on the DNA template
  • mRNA leaves the nucleus
  • tRNA brings an amino acid into the P site.
  • tRNA brings an amino acid into the A site.
  • tRNA leaves the P site and a peptide bond is formed between the amino acids.
  • The mRNA+attached tRNA shifts, moving the 6-tRNA from A site to the P site.
  • The entire mRNA strand is translated into amino acids and a polypeptide is formed.

Explanation:

Protein synthesis is a process that is made up of two distinct processes namely transcription and translation.

Transcription: this process include several steps where the segment of DNA which has information, copied into the new molecule called mRNA which acts as the template as it has information copied from the DNA to produce gene expression.

Translation: is the process includes several steps in which a peptide chain is formed from the mRNA with the help of tRNA and ribosomes.

The correct order of steps is given under the answer heading.

8 0
3 years ago
Other questions:
  • Which is NOT found in a DNA molecule?
    13·2 answers
  • What is a method of calculating density for an irregular object called
    8·1 answer
  • How did the DNA sequence AATCGA be transcribed to mRNA
    14·2 answers
  • What microscope did Anton van leeuwenhoek use to observe single called organisms
    9·1 answer
  • The amount of Peroxidase will be changed by
    15·1 answer
  • How are cells making new proteins and DNA connected
    14·1 answer
  • Your favorite plant is growing very slowly, and you would like to find some way to increase its growth rate. Which of the follow
    15·2 answers
  • What will the motion of the box of candy be?
    12·1 answer
  • The earth is considered to be in the Goldilocks zone.why?
    15·1 answer
  • 2. Populations evolve, _____ do not​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!