Why are viruses considered to be nonliving?

Answers

Answer 1

Answer: Because:
They aren't cells, well not like animal and plant ones. They are just DNA/RNA surrounded by protein
They have no metabolism, they have no energy needs, which makes them unlike living cells
They produce no waste, no energy going in means no energy coming back out again, which is also different to living cells
They don't reproduce by mitosis/meiosis, they can only replicate inside other cells
They don't grow, they stay as they are from birth until death
They don't respond to outside stimuli they just live their happy little lives, oblivious to everything around them

Answer 2

Answer: viruses are considered to be non living because they dont posess nucleus

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Suppose that a large river separates two populations of mice. one population is all black, and the other all white. a beaver dam that is built allows the mice to cross the river. over time, many gray mice are born. what is this an example of?
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Describe at least two ways bone functions in protection of the human body

Answers

Answer and Explanation:

The human being has a bone system made up of 206 bones that grow and develop in childhood and adolescence. Thanks to these bones, people can stand up and move around. The function of the bone system is to support the body, allow locomotion, and protect the organs. The bones that make up the system are linked through joints and are made up of a class of cells known as osteocytes.

The bones form various cavities that protect the internal organs from possible trauma. For example, the skull protects the brain from hits, and the rib cage, made up of ribs and sternum, protects the lungs and heart. On the other hand, various minerals such as calcium and phosphorus are stored in the bones, not only to provide them with hardness, but to later use them as an input in muscle contraction and other organic processes

What is the name for the transfer of genetic information from one bacterium to another bacterium by a phage? select one:a. transduction
b. translation
c. penetration
d. excision?

Answers

the answer is option a

Label each example as either (PI) passive or (AI) active immunity:a. ________ Bill had chicken pox when he was five. He doesn’t catch it again, even when his nephew gets sick with the virus.
b. _______ Billy Jr gets vaccinated with a live attenuated form of the chicken pox virus. He doesn’t get chicken pox after playing with his infected cousin.
c. _______ Bill’s 3 month old daughter is breast feeding. She does not get chicken pox after playing with her infected cousin.

Answers

First, let's distinguish active from passive immunity:
- Active immunity occurs in a direct exposure of individuals to live pathogens. The result is a development of a disease. After that, individuals acquire immunity to the disease.
- Passive immunity is induced by vaccines with antibodies for a disease, so the disease does not develop.

a. ACTIVE IMMUNITY - Bill had a disease, so it must be active immunity.
b. PASSIVE IMMUNITY - Bill got a vaccine and a disease did not develop, so it must be passive immunity.
c. PASSIVE IMMUNITY - Although, 3-month-old daughter did not get a vaccine, she has mother's antibodies from the milk so she will not develop a disease.

Answer:

Active

Passive

What is the hydrologic cycle

Answers

The hydrologic cycle is the flow of water from the Earth's surface via evapotranspiration to the atmosphere, where it condenses, and back to Earth in the form of precipitation. This cycle is important to the circle of life.

The water cycle or hydrologic is a continuous cyclewhere water evaporates, travels into the air and becomes part of a cloud, falls down to earth as precipitation, and then evaporates again. This repeats again and again in a never-ending cycle.

How does your DNA determine whether you develop sickle cell anemia

Answers

sickle cell is a recessive trait.
that means that you have to inherit the gene from both your parents.
eg, if each of your parents has one good copy, and one defective copy of the gene, there will be a 25% chance you'll get 2 copies of the defective gene.
when that happens, before modern medicine, you'd probably die.

however, if you had 1 good copy, and 1 defective copy, then you'd not get malaria.
in a part of the world where most folks get malaria repeatedly, the benefits outweigh the problems.

thalassemia is a related genetic condition that also offers some protection against malaria, however, just as with sickle cell, if you get too much of the gene, your chances for survival are not good.

both cases are interesting results of mutation and natural selection.

An example of thermal energy is?:A) glucose.
B) noise from a jet engine.
C) heat from your furnace vent.
D) a sweater.
I think the answer is C but I'm not sure!!

Answers

the answer is c because thermal energy is energy you get from heat, and since youre getting heat from your furnace vent, its thermal energy.

Other Questions

In this lab, you will explore the microscopic process of building proteins from RNA. Instead of working with variables, you will focus on the steps of that process. What investigative question will you answer by exploring this process? Write your question below.

What are the components of nucleotides?

Elizabeth discovers an organism in the wild and collects a sample of cells for identification in the lab. She observes that the cells of the organism have a nucleus, a rigid cell wall, but lack the characteristic green color from chlorophyll found in autotrophs. What kingdom does the organism Elizabeth discovered belong to?

What is another name for any living thing?