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
myrzilka [38]
3 years ago
9

Describe types of peridophyta​

Biology
1 answer:
sladkih [1.3K]3 years ago
6 0

Answer:

Pteridophyta Characteristics

Pteridophytes are considered as the first plants to be evolved on land: ...

They are cryptogams, seedless and vascular: ...

They are cryptogams, seedless and vascular: ...

Spores develop in sporangia: ...

Sporangia are produced in groups on sporophylls: ...

Sex organs are multicellular: ...

They show true alternation of generations:

You might be interested in
Explain what happened when the isopropanol came in contact with the strawberry extract
castortr0y [4]

The isopropanol will extract the DNA from the strawberries.

Explanation:

Strawberries help in DNA extraction as it has enzymes and pulverizes easily which breaks the cell wall and has large number of DNA in it. The isopropanol helps in precipitating the DNA.

In an experiment of DNA isolation, a squashed and refrigerated strawberry was added in a isopropanol solution after filtering it. It can be seen DNAs are starting to isolate from the strawberry extract in the form of fluffy bubbles.  

5 0
3 years ago
A drought killed all the plants in an agricultural farmland. Gradually, due to wind and some birds from nearby areas, new plants
andrew11 [14]
<span>Nudation is the process wherein an ecological system experiences new growth after a major event. Given that a drought killed all of the plants in the farmland and the wind and birds moved new plants into the now barren area, this is an ecological succession.</span>
6 0
3 years ago
Read 2 more answers
Provide a summary of what happens during DNA replication using the following words: Helicase, DNA
scZoUnD [109]

Answer:

Please find the summary of what happens during DNA replication below

Explanation:

DNA replication is the process by which a DNA molecule is duplicated into two identical copies. It occurs in the nucleus of the cell prior to any cellular division. The process includes:

- The double stranded DNA is first unwound by an enzyme called DNA HELICASE into a replication fork consisting of two single strands of DNA.

- Another enzyme called DNA POLYMERASE binds to the DNA and begins to add NUCLEOTIDES to each strand using complementary base pairing rule i.e. A-T, G-C. To do this, short sequences of RNA called PRIMER are synthesized by an enzyme called PRIMASE, which serves as building block for DNA polymerase to act.

- However, DNA POLYMERASE can only work in the 5'-3' direction i.e. on the leading strand which runs from 3'-5' direction. Short pieces of DNA called OKAZAKI fragments are synthesized on the lagging strand, which runs from 5'-3' direction.

- An enzyme called LIGASE joins the okazaki fragments together into a whole DNA on the lagging strand.

After the replication process which follows the SEMI-CONSERVATIVE MODEL of replication, each DNA molecule will contain one old strand called PARENT STRAND and one NEW strand.

3 0
2 years ago
Blank layers of blank make up the cell membrane
aliya0001 [1]
Layers of plasma and do you need an answer for the first blank part?
4 0
2 years ago
Velopharyngeal insufficiency is failure of the velopharyngeal mechanism to separate the ________ and ________ cavities during sp
Lunna [17]

Answer:

oral and naval

Explanation:

hope this helps :)

4 0
2 years ago
Other questions:
  • List three criteria thomas hunt morgan was looking for in a model organism for genetic studies
    10·1 answer
  • Most enzymes
    11·1 answer
  • During the light-dependent reactions, plants use the energy in ATP and NADPH to build high-energy sugars A. FALSE B. TRUE
    12·1 answer
  • Describe how a protein is coded for and made
    14·2 answers
  • What significant negative effect on the environment cause by obtaining water from a well?
    8·1 answer
  • What are the like terms in the expression: 2a + 3b+ 4C - 5a + 8 - 4
    8·1 answer
  • Plz give a correct answer for the question how do canine and molar differ​
    8·2 answers
  • Primary producers are the basis of any food chain. Sunlight powers photosynthesis which results in the production of chemical en
    13·1 answer
  • Select the correct answer from each drop-down menu.
    10·1 answer
  • Hi help me and you get 15 points!!!<br> How are non renewable resources formed?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!