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lana [24]
3 years ago
6

Imagine walking through a tropical rainforest. You notice that there are different types of trees, birds, insects, and other org

anisms. A few weeks later you are taking a walk through the desert and notice that the trees, birds, insects, and other organisms are different than those you saw in the rainforest. Which of the following statements best explains the differences between each of these ecological systems?
A. Organisms in each ecological system have short dispersal distances and are confined to the area where they mate.
B. Organisms in each ecological system have evolved in that system and have adaptations suited for that environment.
C. Organisms in each ecological system haven't had enough time to evolve the adaptations for the other ecosystem; with enough time they will evolve into the other ecological system.
D. Organisms in each ecological system are there by chance and their presence in different ecological systems does not have a biological explanation.
Biology
2 answers:
Ksenya-84 [330]3 years ago
8 0

Answer:

B. Organisms in each ecological system have evolved in that system and have adaptations suited for that environment.

Explanation:

According to natural selection theory, organisms need to continuously adapt and evolve within an environment or risk being wiped away from that environment.

Organisms that are not able to adapt to an environment are gradually replaced by those that have the capability to adapt and survive in that environment.

Those that are able to survive go ahead to reproduce and give rise to offspring with inherent ability to survive while those that cannot survive die off.

The correct option is B.

bogdanovich [222]3 years ago
6 0

Answer:

B. Organisms in each ecological system have evolved in that system and have adaptations suited for that environment.

Explanation:

Every organism lives in a habitat, within which it lives in an ecosystem best suited for its need. An organism needs food, water and a favorable weather to live. For an organism to survive in an ecosystem, it needs to adapt to the conditions in that ecosystem, else it dies. Therefore, different types of organisms in different systems will have varying characteristics.

This is linked to Charles Darwin’s theory of evolution which implies that all organism in an ecological system evolve heritable traits suited for their environment.

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if there are 500 people in a population, and 150 are homozygous HbA/hba, 150 are homozygous hbs/hbs, and 200 are heterozygous hb
sineoko [7]

Answer:

0.547

Explanation:

Given -

Total Population - 500

Individuals with homozygous HbA/hbA genotype - 150

Individuals with homozygous hbs/hbs genotype -150

Individuals with heterozygous hba/hbs genotype -  200

Let us assume the given population is in Hardy Weinberg' equilibrium

The frequency of individuals in the given population with homozygous HbA/hba genotype is equal to number of individuals with homozygous HbA/hba genotype divided by total population.

\frac{150}{500} \\= 0.3

The frequency of hba allele is equal to

\sqrt{0.3} \\= 0.5477

3 0
3 years ago
Should existing structures build from CCA-treated wood be removed?
stiks02 [169]
<span>Chromated copper arsenate, or CCA, is a pesticide that has been used for years in pressure-treating lumber to prevent destruction from rot and insects. Arsenic, a toxic chemical, can leach from this treated wood, leaving residues on the wood’s surface and in nearby soil. Young children who play on or near decks or playscapes made from CCA- treated wood can get arsenic on their skin and into their bodies, especially if they eat or drink without washing their hands. Because of the health risks of long-term exposure to arsenic, the Environmental Protection Agency (EPA) has announced that as of December 31, 2003, arsenic Currently the EPA does not recommend that people remove existing structures made with CCA-treated wood or the soil surrounding those structures. However, they do recommend that people reduce their potential exposure to arsenic.</span>
5 0
3 years ago
Based on this conversation, write an email to your friend (between 200-400 words), explaining to him why his studying habits are
34kurt

Dear Sarah.

Firstly, I am very happy to know that you have decided to start a study schedule for your literature course in Colonial Latin America, I believe that you will gain great knowledge and that this will be very important for your academic career.

Because of the importance of this study, I decided to analyze your study methods and I fear that they are not efficient and that you will lose time and do not absorb the concepts really necessary for you.

Your study method is based on memorizing concepts and quotes and I believe that you should not rely on it to study, as our memory is relative and often does not last as long as necessary. So I decided to give you advice that I used during my study and that were extremely efficient.

My first advice is that you divide all the material that you have to study in small modules and establish an expert for the study of each one. Don't forget to put a rest time so that you don't get overwhelmed and start taking your readings automatically.

My second advice is that when you study each module, write summaries with the main parts and make mind maps that will be extremely necessary to make revisions.

My last and most important advice is that you make constant reviews and try to conceptualize and reason during this process, this will prevent you from memorizing, but introducing the concepts in your mind in order to understand them and not record them.

I am grateful that you will be successful if you follow these steps and I expect answers from you telling me the results.

Affectionately,

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If the outside temperature decreases by 20 degrees Celsius, what will happen to a reptile’s body temperature?
oksian1 [2.3K]

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6 0
3 years ago
After the milk and bacteria ferment, what are the two parts that we separate?
Korolek [52]

Answer:

Latic acid and rennet cause the milk to curdle,which SEPARATES the curds.

4 0
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