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Dmitriy789 [7]
2 years ago
12

Why do sexually reproducing organisms need gametes? Why don’t asexually reproducing organisms need them?

Biology
1 answer:
Nana76 [90]2 years ago
5 0
Gametes are reproductive cells that unite during sexual reproduction to form a new cell called a zygote. Sexual reproduction needs zygotes to reproduce that is why gametes are needed. Asexual reproduction doesn’t need gametes because there is only one parent and there is no fusion of gametes.
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HIV can remain latent for several years and not cause any symptoms in its host. What viral reproduction cycle is occurring durin
lakkis [162]

Answer:

The lytic cycle.

Explanation:

<u>HIV is a retrovirus</u> that has a special enzyme called transcriptase reverse, which can synthesize DNA using RNA as a template. This replication system is particularly useful for the virus because the DNA synthesized from the RNA viral genome can be then integrated into the human chromosomes and stay inactive for years. This is called a lysogenic cycle and is characterized by a latency of the virus and an integration to the host DNA.

When there is a triggering event, <u>this latent virus can be excised from the human chromosome and start producing copies of itself using the host machinery.</u> <u>Then the virions are assembled and after that they lyse the host cell and release new infective units that can then infect neighboring cells. </u>This is called the lytic cycle of the virus and is the reproduction cycle that occurs when a person moves into the acquired immunodeficiency syndrome (AIDS) stage of HIV infection.

6 0
2 years ago
Each sentence describes an interaction between two of Earth’s spheres. Match each sentence with the spheres that are interacting
madam [21]

Answer: the Earth's spheres interact with other planets in the universe

Explanation: the Earth has different layers and its atmosphere and then when it is in contact with the outer space it can rotate around other planets

3 0
3 years ago
The term for energy of movement
lara31 [8.8K]

Answer;

-Kinetic energy

Explanation;

The energy associated with motion or movement is called kinetic energy.

-Kinetic and potential energies are found in all objects. If an object is moving, it is said to have kinetic energy (KE). Potential energy is stored energy and the energy of position; gravitational energy.

-An object that has motion - whether it is vertical or horizontal motion - has kinetic energy. Kinetic energy is calculated by the formula 1/2mv², where m is the mass of the object and v is the velocity of the object.

-Therefore, kinetic energy depends upon two variables: the mass (m) of the object and the speed (v) of the object.


5 0
3 years ago
21. A type of cell that can exist in a broad range of environmental conditions, can rapidly multiply, and lacks a nucleus is kno
Lerok [7]

Answer:

a

Explanation:

7 0
3 years ago
The author of the book (El-Haiwan) in which he mention animals is True or False​
Rom4ik [11]

Answer:

<em>True</em>

Explanation:

El- Haiwan is an important Arabic book which has been translated to many different languages. The book's title refers to the meaning of animals in the English language. This book is very important in explaining many biological phenomenons taking place in different animals. This book also explains about reproduction which occurs in animals. Corpus Aristotelicum is known to be the writer of this book. Hence, the above statement is true.

7 0
3 years ago
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