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Elena-2011 [213]
3 years ago
14

Which best describes meiosis?

Biology
1 answer:
mihalych1998 [28]3 years ago
6 0

Answer:

The right answer is It produces male and female sex cells.

Meiosis is the process of double cell division allowing the formation of gametes, or sexual cells in eukaryotic organisms. It differs from mitosis, somatic cell division, which takes place only in a time. From a diploid mother cell, we obtain four haploid daughter cells with different genetic material.

Explanation:

You might be interested in
What feature or property of water allows plants to draw a liquid water up from their roots
mel-nik [20]
It would be capillary action
5 0
3 years ago
The reproductive parts of an angiosperm are the _________.
Musya8 [376]

Answer:

e. carpel and stamen is the correct answer.

Explanation:

  • The reproductive parts of an angiosperm are the carpel and stamen.
  • Angiosperms are the flowering plants that bear seeds.Examples of angiosperms are: Apple, Brinjal.
  • The stamen function is to produce and it is a male reproductive structure.
  • Stamen consist of two parts:
  • Anther
  • Stalk
  • Carpel function is to produce egg cells and to protect the developing embryo and it is female reproductive structures.
  • Carpel has three parts:
  • stigma
  • Style
  • Ovary
5 0
3 years ago
The symptoms of tetanus are caused by the neurotoxin ________.
seropon [69]

Answer:

The correct answer is the neurotoxin known as tetanospasmin toxin.

Explanation:

Tetanus is a disease caused by a bacteria known as clostridium. The bacteria are found in soil, manure, dust, and saliva. It can enter the host body by a cut or rusted or dusty nail or burn. It causes muscle spasm or jaw locking or bone locking.

It releases the neurotoxin that is tetanospasmin toxin that inhibits the secretion of γ-aminobutyric acid (GABA) and results in a variety of symptoms associated with tetanus.

Thus, the correct answer is the neurotoxin known as tetanospasmin toxin.

8 0
3 years ago
What type of conduction takes place in unmyelinated axons? What type of conduction takes place in unmyelinated axons? Continuous
Volgvan

Continuous conduction takes place in unmyelinated axon.

Explanation:

Based on the presence and absence of myelin sheath, the neurons had been classified as myelinated and non-myelinated neurons respectively.

In myelinated neurons the transmission of impulse takes place only at the non myelinated region called nodes of Ranvier. Due to this, the conduction in Myelinated neuron is saltatory.

The conduction in non-myelinated neuron takes place throughout the length of axon and it is continuous.

Saltatory conduction is faster than continuous conduction.

6 0
3 years ago
Why does the actions of the thymus demonstrate a close functional connection between the lymphatic system and the endocrine syst
OleMash [197]

Answer:

The Thymus is a unique gland which protects the body against autoimmunity when the immune system act against itself.Hence the Thymus plays a significant role the dual systems i.e.,the lymphatic system (body’s defensive mechanism) and the endocrine system

Explanation:

The Thymus is special gland located anteriorly to the chest directly behind the sternum and in between the lungs. Active until puberty and gradually shrinks to become fat after puberty.

Function: Prior to birth and during childhood thymus engage in producing and maturation of T-lymphocytes or T-cells a particular type of white blood cells which defence the body against infectious disease germs.Though the organ does not function throughout the life span but it plays a significant role protecting the body against autoimmunity refers to an immune system works against itself .Therefore the thymus plays a key role in lymphatic system and an endocrine system.

Secretion:Thymus secretes Thymosin a hormone it instigates the development of T-Cells ( disease resisting cells) Thymosin stimulates the development of T-Cells until a human attains its puberty. At the age of 75 thymus becomes a fatty tissue.

8 0
3 years ago
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