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
e-lub [12.9K]
3 years ago
11

When oxygen first was released in the early seas it combined with iron to form

Biology
2 answers:
Liono4ka [1.6K]3 years ago
3 0
“D” would be the best answer choice for me.... not sure if it’s correct though
artcher [175]3 years ago
3 0
In my opinion i would go with answer “D, DNA molecules” hope this helps and have a good day
You might be interested in
Which of the following is not a potential concern associated with the use of biotechnology?
Alik [6]
<span>The option which is not a potential concern associated with the use of biotechnology is the production yields of GM foods, whereas the other options are quite dangerous when you think about them. Genetic ownership means that somebody could steal your genes and use them for cloning, which is another option here. Trainsgenic foods also have to be kept safe, so as to stop someone from messing with them. The production yields of GM foods is not the problem, the problem is whether that food is healthy or not.</span>
4 0
3 years ago
A sarcomere is...
Salsk061 [2.6K]

Answer:

C, basic contractile unit of muscle fiber.

Explanation:

If you read the definition of sarcomere, this is what it says: "<u>A sarcomere (Greek σάρξ sarx "flesh", μέρος meros "part") is the complicated unit of striated muscle tissue. It is the repeating unit between two Z lines. Skeletal muscles are composed of tubular muscle cells (myocytes called muscle fibers or myofibers) which are formed in a process known as myogenesis</u>."

hope this helps.

3 0
3 years ago
While washing her hair, Olivia noticed that she was losing a lot of hair. She visited a clinic, and the physician reassured her
o-na [289]

Answer:

Hi, there the answer is D because  Mitosis involves the process of growth and repair .

Explanation:

7 0
3 years ago
Which event might cause the carrying capacity of a population to change?
tamaranim1 [39]

Answer:

Carrying capacity can be described as the maximum number of population of a species that a particular habitat can hold.

There are a number of events which effect the carrying capacity like:

  • Environmental changes:

Environmental changes like weather conditions might become favorable for a species in a habitat. It might be that a certain weather condition raises more food for a species. Hence, the carrying capacity would increase.

It might be conditions like drought make the availability of nutrients scarce for a population of species. In this case, the carrying capacity of the ecosystem would decrease.

  • Other organisms :

It might happen that other species might come to live in the particular area. That species will deplete the availability of resources and cause the carrying capacity to decrease.

  • Water supply:

If adequate amount of rain fall occurs in an area, it might cause the carrying capacity of a species to increase as there will be more water. But if the water supply becomes scarce, the carrying capacity would decrease.

6 0
3 years ago
How do sulfur and phosphorus move from the biotic to the abiotic pools during their cycles? A) Primary consumers eat producers.
worty [1.4K]

Answer:D) Decomposers break down the remains of producers and consumers

Explanation:A biotic pool is a tidal pool with diverse and changing habitats of living factors. We can say they are important mini ecosystems within the larger ecosystem.

The abiotic pool involves the elemental phases of nature,the non living parts of the ecosystem. Decomposition (break down) of elements/organic compounds is the characteristic bridge between both pools into what is known as nutrients.

This tell us that the ultimate dead part of producers and consumers are used up in this process.

Some of the nutrients released in the biogeochemical cyclic process includes sulfur and phosphorus and they move through the ecosystem.

Note: The biogeochemical cycle is a pathway of movement for chemical elements.

The chemical elements in nature moves through both biotic and abiotic components via abiotic and biotic interaction in the ecosystem

Few abiotic factors includes rocks, air, water, and chemicals while biotic factors includes living organisms activities.

All living and non living elements of nature play vital roles in the great biogeochemical cycle.

4 0
3 years ago
Other questions:
  • What type of fertilization requires a great excess of egg and sperm gametes because most are wasted?
    12·2 answers
  • How are hosts and parasites related?
    10·2 answers
  • Compare mechanical, chemical, and legislative control to the use of nonnative species as a control method.
    9·1 answer
  • WILL MARK BRAINLIEST!!!
    10·2 answers
  • What kind of environmental change should a tornado be?
    9·2 answers
  • How can a Punnett square predict results of crossbreeding in peas?
    7·2 answers
  • Suggest why drugs that prevent this reflex action from occurring should be avoided.
    13·1 answer
  • Which three materials are exchanged with the environment through tiny
    10·1 answer
  • Height,hair color,eye color,and intelligence are traits passed on by__
    10·1 answer
  • Who performed classic experiments that supported the semiconservative model of DNA replication? (A) Watson and Crick (B) Meselso
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!