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Mariana [72]
3 years ago
14

Ludmila's child was born with an extra chromosome, resulting in down syndrome. this is most likely an example of a(n) _____.

Biology
1 answer:
kobusy [5.1K]3 years ago
7 0

This is most likely an example of a mutation.

Mutation is any alteration or change in DNA sequence which affects the genetic instruction carried by that gene. Mutation can occur either as a result of errors during DNA replication or due to environmental factors such as cigarette smoke and ultraviolet (UV) radiation. Mutations are heritable, especially if they have a positive effect. The disorder Down syndrome is an example of mutation which occurs due to error in cell division in which there is extra copy of a genetic material (specific chromosome); chromosome 21.

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HELPP :(
velikii [3]

The correct answer is C. Students communicate results in laboratory reports, and professional scientists communicate results in scientific journals.

Explanation:

Both students and scientists can carry out scientific research that involves studying a phenomenon by using the scientific method and scientific instruments. However, professional scientists and students differ in their level of knowledge and expertise in science. This makes scientific research made by scientists to have some differences in comparison to scientific research by students.

One of these differences is the way results are communicated. Indeed, students develop simple scientific research and the results are communicated in laboratory reports at school, colleges, etc. On the other hand, professional scientists develop complex research. Due to this, results are communicated in academic texts with strict criteria and that can be seen by other scientists, these are known as scientific journals.

5 0
4 years ago
A heron, a large wading bird, is hunting in a pond that contains three types of prey: fish, frogs, and snakes. All three types o
r-ruslan [8.4K]

The preferred prey item would be frogs.

What is optimal foraging theory?

It is a theory in ecology that proposes that predating animals that get the most energy from minimal efforts are favored by natural selection.

In order words, selection forces prefer investing minimum energy in order to extract maximally available energy.

In this case, the heron needs to use the lowest time to harvest the maximum energy possible. Since all the preys offer the same amount of energy, the one that requires the lowest time would be preferable for the heron.

In other words, frogs would be the most preferable prey.

More on foraging theory can be found here: brainly.com/question/16970714

#SPJ12

4 0
2 years ago
Slime moulds (Acrasiomycota) are protoctists. They feed on decaying organic matter, bacteria and protozoa.
pantera1 [17]
<span>C. I and III only is the answer hope  i helped</span>
5 0
3 years ago
Which of the following is a known limiting factor for good nutrition
Novosadov [1.4K]

Answer:  

seems you forgot the "followings" but here are some known limiting factors

Explanation:

   Exercise,Physiology, Mindset, Nutrition and Genetics.

5 0
3 years ago
Because global temperatures are ________[1], some species are seeking out ______[2] elevations in the Himalayas to colonize. Sci
Vsevolod [243]

Answer:

increasing[1], higher[2], space[3], food[4], climate change[5].

Explanation:

Because global temperatures are <u>increasing[1]</u>, some species are seeking out <u>higher[2]</u> elevations in the Himalayas to colonize.  Scientists were worried that these organisms would not have enough <u>space[3]</u> to live, but they have found that there is adequate <u>food[4]</u> at higher elevations. This movement may help these organisms survive the effects of <u>climate change[5].</u>

(Although am positive about 1, 2 and 5, you will need to double check 3 and 4.  What I can tell you is that I don't think lifespan has to do with 3 or 4.  I chose space and food simply due to the thought that more species moving to higher elevations allows for less space to live, but more prey to be hunted easier.)

4 0
2 years ago
Read 2 more answers
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