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
HACTEHA [7]
2 years ago
14

Why fish have smooth scales on their body​

Biology
2 answers:
melomori [17]2 years ago
6 0

Answer: Scales protect fish from parasites as well as predators and reduce friction with the water. Scales also provide a flexible covering for a fish allowing it to move easily while swimming.

Explanation:

Makovka662 [10]2 years ago
5 0

Answer:

Explanation:

Fish have scales for many reasons. Firstly, to protect the skin of the fish from attacks from predators, parasites and other injuries. Secondly, scales overlap each other in the same way that an armour would protect a person. Hence, providing a layer of protection for the fish.

You might be interested in
2. Give ONE possible reason, biotic or abiotic, why the population decreased in 1990
klemol [59]

Answer:

availability of resources.

Explanation:

Availability of resources is abiotic factor which is responsible for the decrease in population in 1990 because when the population reaches its carrying capacity so the organisms compete with each other and due to limited resources such as food etc the decrease occurs in population. Infection is also occurs when there is high population due to which death occurs and population of organism decreases.

3 0
2 years ago
2a) Which of the following statements about pyruvate oxidation IS TRUE?
Darina [25.2K]

The true statements are:

  • Substrate level phosphorylation ocvurs during Pyruvate oxidation
  • 32 ATP molecules can be made by cellular respiration but only 2 ATP molecules when oxygen is lacking
  • Electrons move from protein to protein due to increasing electronegativity in the electron transport chain
  • ADP is phosphorylated in the matrix of the mitochondria during oxidative phosphorylation
  • ATP inhibits pyruvate dehydrogenase by feedback inhibition

<h3>What is glucose oxidation?</h3>

Glucose oxidation refers to the process in the cells in which glucose molecules are oxidized to form ATP and carbon dioxide in the presence of oxygen.

The first stage of glucose oxidation is the conversion to pyruvate.

Pyruvate is oxidized to acetylCoA.

AcetylCoA enters the citric acid cycle to produce reducing equivalents, NADH for the electron transport chain.

  • The true statements about pyruvate oxidation is that there is substrate level phosphorylation during the process
  • When there is sufficient oxygen, 36 ATP molecules can be made (theoretically) by cellular respiration. However, when oxygen is lacking, only 2 ATP molecules are made.
  • In the electron transport chain of cellular respiration, electrons move from protein to protein due to increasing electronegativity
  • During oxidative phosphorylation, ADP is phosphorylated in the matrix of the mitochondria
  • Aerobic respiration can be regulated by feedback inhibition of pyruvate dehydrogenase by ATP.

Learn more about pyruvate oxidation at: brainly.com/question/22565849

#SPJ1

7 0
2 years ago
An organism grew well on TSA plates, a bit slower on MM1 and not at all on MM1 without glucose. The results indicate that organi
Dafna11 [192]

Answer:

Can grow on MM1.

Explanation:

  • Organisms that can only grow in a media having specific nutrients included in it are called a fastidious organism, this implies that these organisms have specific nutrient requirements for their growth.
  • MM 1 represents the minimal media which has basic nutrients present in it, however as the fastidious organisms require some particular or complex nutrients for their growth they can not grow on the minimal media.
  • Therefore, since the organisms that are given in the question is able to grow on the minimal media MM1, this implies that it is not a fastidious organism.
5 0
3 years ago
The amount of biomass that is produced in an area during a given time would be referred to as?
sweet [91]

Answer:

Explanation:

The amount of biomass that is produced in an area during a given time is referred to as primary production/productivity.

<h3>What is biomass?</h3>
  • Renewable organic material obtained from plant and animal sources if referred to as biomass.
  • Primary productivity is the production of organic compounds through the process of photosynthesis, with the help of solar energy.
  • Primary productivity is measured as biomass produced per unit area over a give time period
  • It is usually expressed either in weight or energy.
  • There are two ways to express primary productivity:

a) Gross Primary Productivity(GPP): Takes into account the total energy produced in the ecosystem.

b) Net primary Productivity(NPP): Takes into account, solely the energy used by the producer for respiration.

To learn more about biomass, refer:

brainly.com/question/25876556

#SPJ2

6 0
1 year ago
In Labrador retrievers, black coat color is dominant to brown. Suppose that a black Lab is mated with a brown one and the offspr
irga5000 [103]
Dominant because dominant genotypes overcome recessive genotypes
3 0
2 years ago
Other questions:
  • The fact that individuals who possess favorable traits are more likely to survive and reproduce than those who possess less favo
    5·1 answer
  • Which of the following accurately reflects the beliefs on Earth's early history?
    8·2 answers
  • Which best describes the relationship of the embryo and the fetus
    10·1 answer
  • What does thus mean about the most effective way to lower birthrates
    10·1 answer
  • In which part of the plant cell does turgor pressure occur
    10·1 answer
  • Can someone help meeeee?​
    12·2 answers
  • Say OINKITY OINK FOR BIG BRAINILEST REEEEEEE
    5·2 answers
  • Offline, create a complete pictogram that represents (1) the various sources of energy; (2) the percentage of global consumption
    11·1 answer
  • Explain why studying microorganisms such as bacteria can help scientists understand how evolution works.
    10·1 answer
  • ----- cells do not directly take part in sexual reproduction, while ---- cells do.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!