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
kow [346]
3 years ago
8

What type of nervous system do mollusks have

Biology
1 answer:
Mnenie [13.5K]3 years ago
8 0
They have two pairs of main nerve cords organized around a number of paired ganglia. while they don't have a "true brain"-- they have somewhat of a nervous system, composed of the two, or three pairs of nerve cords contained in the visceral mass.
You might be interested in
Energy flow in an ecosystem is best represented by _______.
kondaur [170]
Answer: Pyramids of biomass
Pyramids of biomass display the weight of organisms at each level. Inverted pyramids of biomass can occur when the primary producer has a high turnover rate. Pyramids of energy are usually upright and are the best representation of energy flow and ecosystem structure.
Your question: Energy flow in an ecosystem is best represented by _______.
5 0
2 years ago
The electromagnetic radiation that is emitted from radioactive elements is released in the form of
oksano4ka [1.4K]
Gamma rays are the electromagnetic radiation that is emitted from the radioactive elements. A gamma ray has the most energy and the smallest wavelengths than any other electromagnetic spectrum. These rays can kill living cells, and is used in the medical field for several diseases the main disease they are used for is cancer. 
5 0
3 years ago
Read 2 more answers
What are characteristics of all animal cells
dedylja [7]

Answer:

cytoplasm

cell membrane

vacuole

mitochondria

ribosomes

centrosomes

Golgi bodies

nucleus

endoplasmic reticulum

4 0
3 years ago
If a DNA strand is composed of 30% adenine (A), how much thymine (T) would be present out of 100%?
lidiya [134]

Answer:

70%

Explanation:

5 0
3 years ago
The second electron transport chain ends with a(n) ______ that creates NADPH.
mote1985 [20]
1. The right answer is enzymes
NADPH are molecules which are produced during reduction of metabolites (for example glucose metabolism, lipid metabolism...)

2. The right answer is enzymes.
<span>The dark reactions (carbon cycle) act by the reduction of carbon dioxides (CO2) to the level of a carbohydrate (like fructose).
</span>
3. The right answer is ATP.
ATP, or adenosine triphosphate, is a nucleotide of the purine family used to store and transport energy (purines are nitrogenous bases).

4. The right answer is the Calvin cycle.
The Calvin cycle is a series of biochemical reactions that take place in plant chloroplasts. The Calvin cycle makes it possible to manufacture glucose, an energy molecule, from carbon dioxide. This is called carbon fixation.

5. The right answer is NADH
The overall assessment of glycolysis is:Glucose + 2 ADP + 2 Pi + 2 NAD + -----> 2 pyruvate + 2 ATP + 2 H2O + 2 NADH
As we can see, the glycolysis produce indeed 2NADH from a reduction of metabolites during the process.

6. The right answer is Glycolysis.
Glycolysis is the first chain of carbohydrate catabolism, it is carried out in the cytosol by soluble enzymes and anaerobically (without oxygen supply). Its function is the synthesis of a molecule rich in energy, as well as the formation of pyruvate which will have several destinies, including the Krebs cycle.
<span>The Krebs cycle (or tricarboxylic cycle or citric acid cycle) is the energy platform of the cell, continuing the catabolism of carbohydrates after glycolysis. It is realized in the mitochondrial matrix and is done exclusively in aerobic.</span>

3 0
3 years ago
Other questions:
  • Many genetic diseases result from the production of enzymes that are not shaped correctly. how does changing in an enzyme shape
    15·1 answer
  • The synthesis (s) phase is characterized by
    7·1 answer
  • 2
    11·2 answers
  • Explain how photosynthesis would be affected if there were a shortage of NADP+ in the cells of plants
    13·1 answer
  • Why are zebras and donkeys considered different species
    5·1 answer
  • Why is it difficult for people to preserve nature by giving up the practice of fracking?
    14·2 answers
  • Yeah Why is global warming a<br> significant environmental<br> stressor
    15·1 answer
  • 14. In canaries, the singing gene (S) is dominant over nonsinging (s). When a 1 poin
    7·2 answers
  • Identify the cause of impure groundwater.
    14·1 answer
  • How does DNA polymerase move along each strand of DNA
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!