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Rama09 [41]
3 years ago
12

NEED HELP!!!

Biology
1 answer:
Thepotemich [5.8K]3 years ago
7 0
A. Mass extinction is the answer
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Question 1 please help
MA_775_DIABLO [31]
The answer should be D
6 0
3 years ago
Viruses that reproduce almost immediately after coming into contact with a host cell use which viral reproductive cycle?
Naddik [55]

The best answer is A.

The lytic cycle is considered the main cycle in viral replication. Once the viral DNA enters the cell, it transcribes itself into the host cell's messenger RNAs and uses them to direct the ribosomes.

The host cell's DNA is destroyed and the virus takes over the cell's metabolic activity and begins to use the cell's energy for its own propagation and within a short while, when the cell gets overcrowded with  the viral progeny, the original virus releases enzymes to break the cell wall. The cell wall bursts. This process is called lysis. The new viruses are then released.

6 0
3 years ago
Read 2 more answers
A drought causes a wildfire which destroys a forest. Which Earth systems interact during this process? (1 point) Select one: a.
Ne4ueva [31]

<u>Answer:</u>

<em>It is the biosphere and hydrosphere that interact when a drought causes a wildfire that destroys a forest. </em>

<u>Explanation:</u>

Hydrosphere consists of all the water bodies of earth like oceans, seas, rivers, lakes etc.  a drought occurs due to scarcity of water which affects the hydrosphere. The scarcity of water causes plants and trees to dry up and become more prone to catching fire

Biosphere includes all the living organisms of the earth. It includes plants, trees, birds, insects, animals etc. A drought dries up a whole area and a small fire that starts up somewhere in  a forest would then engulf the whole forest.

6 0
3 years ago
The ultimate goal of sustainable development is to limit the future use of resources b. meet current and future resource needs C
egoroff_w [7]

The correct answer is B. Meet current and future resource needs.

Explanation:

Sustainability implies an equilibrium between the natural resources available and the resources humanity requires. This equilibrium is reached when the natural resources extracted from nature are enough to satisfy human needs without depleting the resources or causing these are not available in the future. In this context, the goal of sustainable development is to make sure now and in the future resource needs are meet (option B). Moreover, this is possible through actions such as recycling, reducing deforestation, creating environment-friendly technologies, among others that reduce the depletion of resources or preserve the environment.

4 0
3 years ago
state what will happen to the shadow if the opaque object is moved closer to the screen and away from flash light ​
mars1129 [50]

Answer:

Objects able to block all the light are called opaque and will form a shadow. ... The closer an object is to the light source, the larger the shadow it casts. This is because an object closer to the source will block a larger area of the light, increasing its shadow size.

Explanation:

8 0
3 years ago
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