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
IrinaVladis [17]
3 years ago
6

The yearly rise and fall of CO2 levels in the atmosphere are

Biology
1 answer:
Elena L [17]3 years ago
7 0
Seasonal use of fossil fuels, human activities are changing the natural greenhouse. Over the last century the burning fossil fuels like coal and oil has increased carbon dioxide in the atmosphere.
Hope this helps!!
You might be interested in
Select all of the true statements regarding non‑shivering thermogenesis.
lora16 [44]

Answer:

a, b, d y e

Explanation:

We can define thermogenesis as the method of production of lime or temperature that a living body generates, in biology it is studied that this does not occur in all animals, but is seen in so-called warm blood and some plants, there are three types of processes identified in animals:

NEAT: defined as thermogenesis that occurs without the presence of physical activity

DIT: defined as the thermogenesis that occurs with physical activity

EAT: defined as the thermogenesis that occurs with the consumption of food or diet

Thermogenesis under the thermogenin protein found in brown adipose tissue produces a disengagement of protons within the mitochondria, prevents ATP synthesis and is capable of inducing temperature with the flow of protons, it also intervenes by increasing glycolysis, lipogenesis and gluconeogenesis with which its final result in these processes is the production of energy. The effect of the sympathetic nervous system and thyroid hormones that can balance heat production without generating abnormal movements such as tremor is also recognized.

Thus we deduce that:

electron transport allows heat flow without causing tremors

Thermogenin is involved in allowing protons to enter the mitochondria and the ATP production process is carried out.

hydrolysis of fatty acids occurs in the presence of norepinephrine

in brown adipocytes ATP synthase can be avoided

6 0
3 years ago
In angiosperms, pollen grains are
o-na [289]
C. Hapliod, and are made when haploid spores undergo mitosis
7 0
3 years ago
Read 2 more answers
Musculo que tiene las características tanto de musculo esquelético como de musculo liso. Se encuentra en el corazón y sus contra
max2010maxim [7]

Answer:

El músculo estriado cardiaco es una forma especializada de músculo estriado, conforma la pared del corazón, cuya contracción rítmica es involuntaria.

5 0
2 years ago
Describe the contributions of Schlieden and Schwann to the cell theory.
kenny6666 [7]

Schwann - In 1839, he cells are the basic unit of animal structure

Schlieden - In 1838, he discovered cells are the basic unit of plant structure

Hope this helps

8 0
2 years ago
Is Bacteria and Bcaterium is same..​
AnnZ [28]

Answer:

Yes. Bacteria and Bacterium is a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some which can cause disease

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is an ORGANELLE
    10·2 answers
  • What do Fungi and Algae come together to form?
    7·2 answers
  • Do you get all the energy from a piece of fruit you eat
    7·2 answers
  • What is shown in the image
    15·2 answers
  • Which description best identifies characteristics of asexual reproduction ​
    11·1 answer
  • Describe cultural effects and economic effects regards to population.
    7·1 answer
  • Answers I got more just wait
    10·1 answer
  • How can you distinguish a mixture from a substance based on their boiling point?​
    9·1 answer
  • 3. A nonnative species of animal is introduced into a healthy ecosystem. In its new environment, this species has no predators,
    13·2 answers
  • Which body system breaks down food into nutrients.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!