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
Kamila [148]
3 years ago
7

What are the two major sources of atmospheric carbon?

Biology
1 answer:
inn [45]3 years ago
7 0

Answer:

There are both natural and human sources of carbon dioxide emissions. Natural sources include decomposition, ocean release and respiration. Human sources come from activities like cement production, deforestation as well as the burning of fossil fuels like coal, oil and natural gas.

Explanation:

You might be interested in
Arrange the following in the correct sequence, from earliest to most recent, in which these plant traits originated. 1. sporophy
zavuch27 [327]

Answer:

Earliest- gametophyte dominance, sporophyte dependence

Middle- sporophyte dominance, gametophyte independence

Recent-  sporophyte dominance, gametophyte dependence

Explanation:

The life cycle of plant alternates between the two phases: the haploid gametophyte which produces gametes and the diploid sporophyte which produces spores.  The evolution of land plants shows how these are dependent on each other in terms of the requirement of nutrition.

In bryophytes, the gametophyte is the dominant phase on which the sporophyte depended. Later in pteridophytes, the sporophyte became dominant which is present in the later evolved groups namely the gymnosperms and the angiosperms. The gametophyte was independent on the sporophyte but in angiosperms and gymnosperms, it is dependent.

3 0
3 years ago
A cell is a complex system. Like most systems, a cell contains a boundary that separates things that are inside the system from
bearhunter [10]

Answer;

Cell membrane


A cell membrane acts as a boundary that separates things that are inside the system from those that are outside the system.

Explanation;

It is a thin semipermeable structure that surrounds the cytoplasm of a cell.

The membrane functions to protect the integrity of the internal environment of the cell by allowing selective movements of materials in and out of the cell.

The membrane consists of a phospholipid bilayer with proteins embedded in it.

6 0
3 years ago
Read 2 more answers
In the process called ________, species act as agents of natural selection on one another.
slava [35]
The correct answer is:  "coevolution" .
_____________________________________________________
6 0
3 years ago
List the five conditions that disturb genetic equilibrium in a population. Explain.
Ivan
<span> No gene mutations occurring at that locus or the loci associated with the trait </span>
<span>• A large population size • Limited-to-no immigration, emigration, or migration (genetic flow) </span>
<span>• No natural selection on that locus or trait </span>
<span>• Random mating (panmixis) It can describe other types of equilibrium as well, especially in modeling contexts.</span>
6 0
3 years ago
A genetic mutation causes disease when the blank the DNA encodes is altered such that it no longer functions properly
Savatey [412]

Answer:

protein

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • The central dogma of molecular biology is that biological information flows from rna _ dna _ protein.dna _ rna _ protein.dna _ r
    7·1 answer
  • What helps identify cell types?
    7·1 answer
  • A population that grows until it reaches its carrying capacity usually has the shape of what
    6·1 answer
  • I need the answer please thank u
    15·1 answer
  • Some bacteria can switch from respiration to fermentation when oxygen levels decrease.
    14·2 answers
  • What is osmosis? Please help me
    11·1 answer
  • Plzzzzzz help me
    9·2 answers
  • What were the biotic and abiotic factors in the ecosystem?
    10·2 answers
  • Which of the following are true regarding ores?
    12·1 answer
  • Which of the following does not describe enzymes?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!