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
gregori [183]
3 years ago
9

What were the subgroups to plants

Biology
1 answer:
dlinn [17]3 years ago
5 0

Explanation:

The division comprises a tremendous diversity of plants among its four subgroups: psilopsids, leafless and rootless primitive forms commonly known as whisk ferns (though not true ferns); sphenopsids, feathery leaved plants commonly called horsetails; lycopsids, low-lying plants called club mosses; and pteropsids, 

You might be interested in
The concentration of carbon dioxide in the atmosphere has been gradually increasing for many years. How might this increase affe
Assoli18 [71]

Answer:

It will increase the rate of photosynthesis as there will be more carbon dioxide ... however there may be a limiting factor which will limit the rate to keep it constant... Such as the opening if the stomata to receive more CO2 which in turn causes loss of water by transpiration.

5 0
3 years ago
What are some examples of commensalism in an ecosystem?.
harina [27]
Commensalism is when one organism benefits off the other one without harming it. Examples are tree frogs that use plants for protection or jackals that have been expelled from packs trailing tigers and feeding on the remains of its kill. Barnacles on whales get shelter by attaching to a whales body
7 0
2 years ago
Which of following is a use for fossils found in sedimentary rocks?
Greeley [361]

Answer:

i am pretty sure it would be B. All the above... not positive though

Explanation:

tell if wrong.... have a nice day!

7 0
3 years ago
Which of the following are useful traits of cloning vectors?
SSSSS [86.1K]

Answer:

The correct answer is option - e. all of the above are useful traits.

Explanation:

A cloning vector is a small segment of DNA that can be established stably in an individual organism and able to internalize a foreign DNA for cloning purposes. The cloning vector could be taken from different organisms such as plasmid of a bacterium, or DNA from a virus. A cloning vector must possess some characteristics -  

The cloning vector must be self-replicating ability in the host cells, it should be small in size with restriction site for the restriction endonuclease enzymes in it. The replication character of the vector should not interfere with the internalized DNA fragment. The presence of marker genes in the vector is also a property that is helpful in identifying of recombinant cells.

Thus, the correct answer is option - e. all of the above are useful traits.

7 0
3 years ago
Carl is on an expedition to the bottom of the ocean. As the submersible sets down on the ocean floor, it is resting on what laye
ElenaW [278]
The answer is lithosphere
4 0
3 years ago
Read 2 more answers
Other questions:
  • Plants and animals add carbon dioxide to the atmosphere when they _____ glucose.
    6·1 answer
  • Plants are living organisms. <br> a. True<br> b. False
    14·2 answers
  • Large mats of green algae lived during the __________ period, more than 550 million years ago .
    12·2 answers
  • When looking at the inheritance of a single character, Mendel found that a cross between two true-breeding peas (between purple
    7·1 answer
  • The "anabolic steroids" are drugs that are sometimes misused by people who want to increase their athletic prowess. describe wha
    12·1 answer
  • Answer choice <br><br> Heliocentric <br> And<br> Geocentric
    6·1 answer
  • A chicken has some cells that contain 78 chromosomes and other cells that contain 39 chromosomes. Which process is responsible f
    8·1 answer
  • Near a mid-oceanic ridge you can find...
    14·1 answer
  • 35!!! POINTS A rectangle has sides measuring (6x + 4) units and (2x + 11) units.
    6·1 answer
  • All the following rely on ATP as a source of energy except
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!