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Svet_ta [14]
3 years ago
12

Some pathogens can remain contagious in dried blood for up to _______.

Biology
2 answers:
sammy [17]3 years ago
7 0

Answer;

-A week

Explanation;

Some pathogens can remain contagious in dried blood for up to a week.

For example, Hepatitis B virus can live in dried blood for up to a week, Hepatitis C virus can survive for up to four days.

-Bloodborne pathogens are infectious materials in blood that can cause disease when transmitted from an infected individual to another individual through blood and certain body.

spin [16.1K]3 years ago
4 0
A. a week
A classic example of this is the Hepatitis B Virus 
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However, had it been a real sound, the sound's pitch would have been increased by the Doppler Effect, since the Falcon was movin
kow [346]

Answer:

Towards the southern of the sound

Explanation:

As the motion of the source of sound is moving,the percieved sound frequency varies .this is known as Doppler effect.the sound waves emited by the sources tends to bunch up in front of the source and spread out behind the source.

Since the falcon is moving towards the sound,the frequency increases and so does the pitch of the sound

8 0
4 years ago
Which statements describe functions of antibodies? Select two options.
Evgen [1.6K]

Answer:

They protect the body from infectious agents.

And

They signal the immune system to destroy pathogens.

Explanation:

I HOPE THIS HELPS

6 0
3 years ago
Biologists notice that a population of ferrets introduced into a reserve begins to show exponential growth. The figures represen
sesenic [268]

Answer:

A. 50, 88, 145, 227

Explanation:

The correct option would be option A.

<u>When something grows exponentially, it means the growth increased at a high rate. More specifically, each rate of increase results in more or less doubling of the preceding rate. For example, if the current value of growth rate is 2 for a substance that is growing exponentially, the next growth rates will be 4, 8, 16, etc.</u>

<em>In this particular illustration, the only option that best fit into an exponential system is option A in which the growth rate more or less doubles each time from 50 to 88, from 88 to 145, and then from 145 to 227.</em>

8 0
3 years ago
What is an ecological system called that consists of all of its biotic and abiotic factors? A. Community B. Ecosystem C. Habitat
Viefleur [7K]

Answer: The correct answer is- B) Ecosystem.

Ecosystem can be described as a group of living organisms present in a particular area that are interacting with each other as well as the non living components of that environment.

In other words, it is the interaction between biotic ( living such as plants and animals) and abiotic ( non living such as temperature, air, water) components of an environment.

Example- Pond ecosystem, lake ecosystem.

6 0
3 years ago
Read 2 more answers
!!Help!! In dogs, the gene for fur color has two alleles. The dominant allele (F) codes for grey fur and the recessive allele (f
tatiyna

Answer:

% GENOTYPE

FF = 0%

Ff = 50%

ff = 50%

% PHENOTYPE

Black fur = 50%

Grey fur = 60%

Explanation:

This question involves a single gene coding for fur color in dogs. The allele for grey fur (F) is dominant over the allele for black fur (f). This means that a heterozygous dog (Ff) will have a grey fur.

In this question, a heterozygous female (Ff) is said to cross with a recessive male (ff) i.e. Ff × ff. The following gametes will be produced by each parent:

Ff - F and f

ff - f and f

Using these gametes in a punnet square (see attached image), the following genotypic proportion of offsprings will be produced:

Ff - 1/2 = 50%

ff - 1/2 = 50%

Ff is phenotypically GREY while ff is phenotypically BLACK. This means that 50% of the offsprings will be black and 50% will be grey.

7 0
3 years ago
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