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Novay_Z [31]
3 years ago
11

Each of the following relates to an aspect of evolution by natural selection. Explain the following. ii. Natural selection and t

he formation of insecticide resistant insects or antibiotic resistant bacteria. iii. speciation and isolation (allopatric) give three examples how it may occur?
Biology
1 answer:
dlinn [17]3 years ago
4 0

         The first one, ii. Natural selection and the formation of inseticide resistant insects or antibiotic resistant bacteria.

          This can be explained in very simple way. As we all know, natural selection works in a way that only that adapted living beings are going to survive through a specific environment, whether it's because they can grab their food without too much work, or even that they can adapt to the weather. When we use inseticide, we are killing lots of non-resistant insects, and what's left are those that are resistant to this inseticide, and they'll reproduce again, and again we'll go through the same process, but remember, this insect is now stronger and more resistant that before.

            The second case, iii. speciation and isolation give three examples how it may occur.

            Well. the allopatric speciation and isolation will happen when theres a geographic barrier between one species. This one then is divided into two diffent habitats, but what can divide than could be a mountain, a tree, a river, a rock, anything. And this could be too called as a geographic isolation, because in this new environment, species are going to develop in a different way.

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Which of the following is the term for an abnormally low white blood cell count?
Nikolay [14]

Answer:

The correct answer is- Leukopenia

Explanation:

White blood cells are present in our blood which protect our body from foreign antigens like bacteria, viruses, etc. When these white blood cells decrease abnormally in number then this condition is called leukopenia.

White blood cells contain different cell which protect our body from different type of infections. So there are different types of leukopenia according to the particular white blood cell whose number became low.

For example when neutrophils number in the body decrease it is called neutropenia. So the correct answer is leukopenia.

4 0
3 years ago
Compared with DNA replication, transcription is _______ error prone because of differences in _______.
Tatiana [17]

Answer:

more ; the proofreading system

Explanation:

Transcription is considered to be more error prone and this is mainly attributed to differences in the proofreading system.

Hope this helped! :^)

8 0
3 years ago
Keep the answers short and simple and ignore the one where you have to draw.
tatyana61 [14]

Brainliest Please

Answer:

1. Air mass is temperature or humidity

2. The two ways are temperature and humidity

3. Continental Polar and cP

4. Maritime Tropical and mT

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The last two you are going to have to do on your own because I cant draw.

5 0
3 years ago
A short handled tool used in loosening the soil around the plants.
Natali5045456 [20]
The answer is a trowel.

-Evidence—
•-A trowel is a small hand tool used for digging, applying, smoothing, or moving small amounts of viscous or particulate material. Common varieties include the masonry trowel, garden trowel, and float trowel.
5 0
3 years ago
Question 1 of 10<br> What are the basic units of a chemical element called?
ElenaW [278]

Answer:

An atom is the basic unit of a chemical element. Atoms are made out of three main parts: protons, neutrons and electrons. Protons and neutrons are contained inside the very center of the atom, which is called the nucleus.

Explanation:

hope it may help you

6 0
3 years ago
Read 2 more answers
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