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
Marrrta [24]
3 years ago
8

The major source of oxygen in earth's early proterozoic atmosphere is inferred to have been produced by

Biology
1 answer:
Misha Larkins [42]3 years ago
6 0
In this question in which is the major source then of free oxygen in the earth's Proterozoic atmosphere is being produce by the evaporation of the ocean water. Hope this answer would be of big help to this assignment then.
You might be interested in
I already did the rest, I just need an explanation on Phillip being the father or not.
Dmitry_Shevchenko [17]
Phillip is the father as the baby has a heterozygous blood type B which is IBI in order for this to have happened the IB part would have came from the baby’s mom and the I or blood type O part would have came from the baby’s dad. However because blood type O is recessive blood type B is dominant and is show.
5 0
2 years ago
Part C
AnnyKZ [126]

The style is the female reproductive part of the plant. it plays important role in plant breeding .

What is style and the role of style in reproduction ?

The stigma and ovary are connected by a long tube-like structure called the style. The pollen tubes bearing male gametes enter the style tissues and travel to the ovary's ovule once the stigma's pollen grains have germinated. Once within the embryo sac, it travels to the egg cell to fertilize it with the aid of the filiform apparatus.

The style is crucial to the plant reproduction  process since it not only serves as the site for the formation of the pollen tube but also functions to prevent incompatible pollen from entering the ovary. Genetic information is transferred between the pollen and the plant when the pollen tube begins to spread within the style. The plant also produces a poison at this period. The plant will release the poison to block the formation of the pollen tube if the pollen is unsuitable because it comes from a different species or is too closely related, leading to inbreeding.

If the pollen is compatible, the plant will isolate the poison and sequester it so that the pollen tube growth is not halted. Therefore, the style is the area where compatibility is evaluated and where it is decided if pollen that falls on a flower will be allowed to fertilize the plant.

Learn more about plant reproduction here :

brainly.com/question/15492488

#SPJ13

8 0
1 year ago
Which global water rights issue does the tippy tap technology help solve?
Mashutka [201]

Answer:

a. lack of running water

Explanation:

The Tippy tap technology was invented to solve the issue of running water problem. This technology is designed mainly for hand washing and it is used in the rural area to solve the running water problem.

This technology technique needs only forty milliliters of water; it is less expensive and reduces the chance of transmitting diseases as the user only touches a bar of soap suspended by a string.

8 0
3 years ago
All mammals have a double circulatory system. Fig shows part of the human double circulatory
kenny6666 [7]
Pulamonary artery I think
4 0
2 years ago
What role does the overproduction of organisms play in natural selection
Nataly_w [17]
The overproduction of offspring leads to competition in which only the better adapted organisms survive and reproduce.
3 0
2 years ago
Read 2 more answers
Other questions:
  • 45. Which is created by transgenic organisms and utilized by humans?
    6·1 answer
  • Which of the following are the three kinds of RNA? A. rRNA, dRNA, mRNA B. rRNA, mRNA, tRNA C. iRNA, mRNA, sRNA D. tRNA, dRNA, rR
    14·2 answers
  • What element behaves MOST like magnesium? A) S B) Si C) Sn D) Sr
    10·1 answer
  • Which of the following describes a community.
    8·1 answer
  • About one hundred thousand years ago, very fluid lava started erupting slowly and gently from a place near a plate boundary. Wha
    8·1 answer
  • Which of the following is not an example of response to stimulus.1) watering in the mouth when we see delicious food item
    11·2 answers
  • How is ADP converted to ATP?
    8·1 answer
  • What is the difference between oviparity and viviparity
    13·1 answer
  • The basic unit of the cell membrane is the:
    8·2 answers
  • If the marginal propensity to save is 0.25, a $15 billion increase in government spending will lead to an increase in national i
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!