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
ValentinkaMS [17]
3 years ago
10

While eating a picnic lunch in the woods, Jana is frightened by the

Biology
1 answer:
Sladkaya [172]3 years ago
7 0

Answer:

The correct answer is option c. the sympathetic and parasympathetic nervous systems.

Explanation:

The parasympathetic nervous system is the one that controls involuntary functions and acts. It also causes or maintains a body state of rest or relaxation after an effort or to perform important functions such as digestion.

The sympathetic nervous system is the one that controls visceral reactions and reflexes, that is, it controls how our body responds to a threatening situation, as is the case in the example.

Both systems make up the autonomic nervous system which is in charge of controlling the involuntary functions of our body.

You might be interested in
How does the atomic mass of an atom differ from the atomic number?
olya-2409 [2.1K]

Answer:

1.

Explanation:

Atomic mass is protons+neutrons. Atomic number is just protons.

5 0
3 years ago
Shell-builders use calcium carbonate molecules (CaCO3) to build their shells. Which of the choices above could be a source for t
Fudgin [204]

Answer:

The question is incomplete, the correct question is;

Shell-builders use calcium carbonate molecules (CaCO3) to build their shells. Which of the following choices could be a source for the carbon atoms in the calcium carbonate (CaCO3) molecules?

respiration by organisms such as plants, animals and microbes

burning coal

calcium ions

car exhaust

wildfires

Answer is all of the above options except calcium ions.

The source for the carbon atoms in the calcium carbonate (CaCO3) molecules include respiration by organisms such as plants, animals and microbes , burning coal , car exhaust  and wildfires.

Explanation:

Shell-builders (coral, oysters, lobsters, sea urchins, phytoplankton) utilize calcium carbonate molecules (CaCO3) to build their shells. The respiration process by organisms such as plants, animals and microbes, burning of fossil fuels, vehicle exhaust, wild fire etc produces carbon dioxide (CO2) and release it into the atmosphere. Oceans absorb carbon dioxide in the air by diffusing and dissolving it into the surface water. The amount of CO2 that dissolved in the water depends on concentrations of CO2, temperature of the water, wind, etc.

Phytoplanktons (microscopic, one-celled organisms) also bring carbon into the ocean from the air through photosynthesis, where they convert the carbon dioxide and water into glucose and other carbon compounds. These carbon compounds are consumed by the marine organisms and some carbon eventually ends up in deep seafloor sediments. The other processes which involved in the transfer of carbon from the air into deep seafloor sediments include photosynthesis , decomposition , waste products, etc.

The CO2 dissolved in the ocean combines with water molecules to produce carbonate (CO3-) ions, which then combine with calcium ions in the seawater to form calcium carbonate (CaCO3). This calcium carbonate is used by shell building organisms to build their shells, plates, inner skeletons etc.

8 0
3 years ago
Which type of climate is most beneficial to soil formation?
IgorC [24]

Answer:

Your answer is A, Rain forest.

Explanation:

Soils develop faster in warm, moist climates and slowest in cold or arid ones. Rainfall is one of the most important climate factors in soil formation.

I hope that helped ,let me know if you need help with anything else

5 0
3 years ago
Plantea un experimento que cumpla con todos los requisitos del método científico que refute la teoría de la generación espontáne
patriot [66]

Answer:o

J

Explanation:

Yess

6 0
2 years ago
What means acid rain?<br> What causes acid rain?<br> What are the effects of acid rain?
AlexFokin [52]
Acid rain can be caused by factors and there chemicals in the air
Acid rain effects- getting into our under ground waters, the animals might get sick from the acid rain, fish might die, animal health, and human health when it gets in our drinking water
Acid rain-meaning that it has elevated levels of hydrogen ions. is a rain or any other form of precipitation that is unusually acidic.
Hope this helps have a nice day

5 0
3 years ago
Other questions:
  • Elephants shape their environment in many ways. They can change a forest to a grassy field or dig a hole that might become a pon
    15·2 answers
  • What 2 properties of water make capillary action possible?
    8·1 answer
  • Identify the characteristics of protists
    11·1 answer
  • What part of the blood closes a wound?
    6·1 answer
  • Your umbilicus (​bellybutton​) is (​anterior/posterior​) to your tushy.
    10·1 answer
  • A lot of points marking people as BRIANLIST
    13·2 answers
  • Tobacco has been linked to many health problems. what is the most complete list of forms of tobacco that cause cancer?
    8·2 answers
  • Carbohydrates contain _____.
    15·2 answers
  • Look at this food chain. What would happen if the<br> salmon were overharvested?
    11·1 answer
  • Many soil-dwelling bacteria produce molecules that can be naturally synthesized and kill other species of bacteria. What are the
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!