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jasenka [17]
3 years ago
14

Forensic soil analysis does not require much extra experience or training.

Biology
1 answer:
Dmitry [639]3 years ago
4 0
It is false that forensic soil analysis does not require much extra experience or training, since the elements and makeup of soil can affect evidence in many ways. 
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The observable traits of an organism (such as hair color or height) is referred to as the:
luda_lava [24]

Answer: Phenotype

Explanation:

Phenotype refers to the total physically observable feature of an organism. it include hair color, height, body size etc

5 0
3 years ago
Which of the following are consequences of the Dust Bowl of the 1930s?
jenyasd209 [6]

Answer:

I think it is the first one

Explanation:

I

7 0
2 years ago
Which of the following is unique to eukaryotic cells?
olya-2409 [2.1K]

Answer:

eukaryotic cells have a nucleus

8 0
3 years ago
True or False: The following example populations meet the basic requirements of Hardy-Weinberg equilibrium. a. A small, isolated
Setler79 [48]

Answer:

Only option D is TRUE. The rest are FALSE.

Explanation:

In Hardy-Weinberg equilibrium, there is virtually no change in the frequency of alleles and genotype, in a population, meaning there is a genetic equilibrium in that population which shows no real evolutionary change has occurred. According to the , several conditions must be met before such equilibrium can be said to occur in a population, these requirements or conditions are:

1. There must be an unrestricted random mating

2. Mutation that results in the change of gene is absent

3. The population size must be large enough

4. Absence of migration,i.e. no movement of members out of a population or into a population

5. No natural selection

Now let’s take a  at the example of populations given, stating whether they meet the above listed conditions or not

For option A, which is “A small, isolated population of seals living in a stable environment with no genetic mutations” this is False, a small population size of seals is more likely to have its allele frequencies changed by random fluctuations compared to a large population size of seals. This does not satisfy condition number 3 listed above.

Option B, “A large population of fish where females mate with males based on size” is False. It does not satisfy condition number 1 listed above. In this population example, there is restricted random mating.

Option C “A population of birds with no genetic mutations that often mate with members of neighboring bird populations” is False. It does not meet condition 4, because there is exchange of genes with other populations that might have different allele frequencies.

Option D “A large, isolated population of squirrels that lives in a stable environment, has no genetic mutations, and mates randomly” is True. This meets all conditions listed above.

Option E “A large population of spiders that experiences immigration from a second nearby population” is False. This does not meet condition 4.

4 0
3 years ago
Which method best helps to prevent wind erosion?
Goryan [66]

Answer:

This question is incomplete as it lacks options, the options are:

A. rotating crops

B. decreasing riverbank slopes

C. growing more vegetation

D. avoiding soil compaction

The answer is C. growing more vegetation

Explanation:

Wind erosion is a type of erosion caused by excessive wind. Wind erosion causes the blowing away of the top soil, which contains nutrients from one location to another. There are, however, various ways to prevent wind erosion from occuring which includes: planting of vegetation to serve as windbreak.

The growing of MORE VEGETATION COVER in form of trees can be used to control wind erosion because the trees will serve as windbreak and prevent the flooding effect of wind on the soil.

8 0
3 years ago
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