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
Elan Coil [88]
3 years ago
10

What are the smallest blood cells in the frog?

Biology
1 answer:
Tamiku [17]3 years ago
4 0

Answer:

Unlike typical mammalian red blood cells, those from amphibians, such as frogs, contain a DNA-bearing nucleus that is visible in the center of the cell. The circulatory system of amphibians is rather unusual, their hearts having three chambers, two atria, and a single ventricle.

NegativePositive

Positive

The design of the amphibian circulatory system is curious because blood accumulates oxygen in the lungs and is then returned to the heart before being pumped into the rest of the circulatory system. Therefore, a mixing between oxygenated and deoxygenated blood occurs as blood returning to the heart from the lungs is mixed with incoming blood from the body. Frogs handle this situation by having a very slow metabolism and by absorbing some oxygen through their skin. In addition, the ventricle does have some directional control over the distribution of the blood.

Negative

The presence of a nucleus in amphibian red blood cells allows researchers easy access to large quantities of amphibian DNA. Frog blood has both a solid and a liquid portion. The liquid plasma carries solid elements such as red and white blood cells. Blood can be collected from frogs and the red blood cells isolated by centrifugation. After removal of the residual plasma, purified cells can be treated with specific enzymes and detergents to digest the cellular envelope and release DNA from its protein complex. The DNA is then useful for scientific studies and experiments.

Featured in: Phase Contrast

Explanation:

You might be interested in
(1) What is the most common way for a dead organism to avoid decomposition?
viktelen [127]

Answer:(i)The most common way for a dead organism to avoid decomposition: The body could be buried in a sandstorm.

(ii)Dry and barren places have high erosion that reveals fossils. Dry and barren places are comfortable for heavy phyiscal labor.

(iii)Radiometric dating methods

(iv)In a quadrupedal pelvis, the ilium lies lateral to and parallel to the vertebral column and the ischium extends dorsally. ... In a bipedal pelvis, the ilium is shorter, wider and expanded front-to-back. Where the ilium articulates with the sacrum is wider, providing greater stability and support.

(v)Lucy has a more humanoid pelvis because she was a hominin.

Explanation:

Hope it helps :)

3 0
3 years ago
What happens when the organic matter of the fossil is replaced by stone
wolverine [178]
Petrifaction happens jvgocg igcgicigcicg
3 0
3 years ago
Two pods of dolphins (same species) exist off the coast of Mexico. Pod A likes to swim and play at depth in cooler water. Pod B
stellarik [79]

Answer:

The correct answer is - speciation is sympatric.

Explanation:

Sympatric speciation is a process of speciation that takes place when there is reproductive isolation between two populations of a species without any geographical separation.

This speciation takes place in the population with come ancestors as given in the question both pods of dolphins lose their ability to interbreed due to the sympatric speciation without any geographical separation.

Thus, the correct answer is - speciation is sympatric.

3 0
3 years ago
Define 'ecosystem'. <br>with explanation<br>★★★★★​
TiliK225 [7]
Ecosystem is a community or group of living organisms that live in and interact with each other in a specific environment.

An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows.
4 0
3 years ago
An increase in the biodiversity of an ecosystem leads to an increase in its productivity.
Liono4ka [1.6K]

Answer: Your answer is True.

Explanation:

8 0
3 years ago
Other questions:
  • While listening to someone’s heart, a doctor discovers that the “lub” sound is weaker than the “dubb” sound. What might this clu
    10·2 answers
  • What process do frogs undergo that physically changes them from a tadpole to an adult tetrapod?
    11·1 answer
  • Use a hot-air balloon moving across the sky as an example to explain how speed, velocity, and acceleration are different.
    9·1 answer
  • Which of the following is correct about the flatworm's muscular system ?
    5·2 answers
  • The movement of oxygen molecules over time from one side of the semipermeable membrane to the other side is known as
    12·2 answers
  • Answering a phone when it rings is an example of:
    13·1 answer
  • Which statement correctly explain these changes?
    6·1 answer
  • What is The amino acid for TAC?
    14·1 answer
  • Plants _____.
    6·2 answers
  • James Hutton:______.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!