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3 years ago

What happens when living things get in the dirt?

1 answer:

4 0

Human exploitation of fragile ecosystems can lead to the droughts and arid conditions characteristic of desertification. Effects include land degradation, soil erosion and sterility, and a loss of biodiversity, with huge economic costs for nations where deserts are growing.

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Bear pigmentation is subject to epistasis of the B alleles by the d alleles. B (black) is dominant over b (brown). D is dominant

White raven [17]

Answer:

9/16 black, 3/16 brown, 4/16 white

Explanation:

BD Bd bD bd

BD BBDD BBDd BbDD BbDd

Bd BBDd BBdd BbDd Bbdd

bD BbDD BbDd bbDD bbDd

bd BbDd Bbdd bbDd bbdd

A punnet square can be described as a diagram which is made to predict the genotype as well as the phenotypes of the offsprings of a cross.

To study the epistatis nature of the pigmentation in bear, a punnet square was made and the results of the punnet square are shown above.

The results of the punnet square show that the cross between two bears will have the chances of producing 9/16 black bears, 3/16 brown bears and 4/16 white bears.

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3 years ago

_____ fungus increases the area of the root for absorbing water and minerals from the soil.

777dan777 [17]

Mycorrhizae fungus increases the area of the root for absorbing water and minerals from the soil.

Mycorrhizae will develop a mutualism symbiosis with the plant since they both get a benefit. Mycorrhizae will get food from the plant and plant got more water and minerals.
Parasitic fungus only steals food from the plant without giving any benefit to the plant.

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3 years ago

Over the past decade, epidemiologic data have been used to develop ____ methods for identifying women at high risk of giving bir

alexgriva [62]

Answer: Surveillance

Explanation:

Over the past years epidemiologic data has been used to have a surveillance on the methods for identifying the women who is at the risk of giving birth to child having fetal alcohol spectrum syndrome.

This is a syndrome in which the a group of condition takes place in the child whose mother drinks alcohol during the time of pregnancy.

The children are short heighted, have low intelligence, problem in hearing and seeing et cetera.

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4 years ago

Magine that a researcher is studying the color of grasshopper exoskeletons. Assume that this phenotype is caused by the action o

podryga [215]

Answer:

0.8

Explanation:

Allele frequency simply shows how common an allele is in a population.

It is calculated by counting the number of times it appears divided by the total number of copies of the gene.

The frequency of all alleles of a gene present in a population must equate to 1.

so, p+q=1

If the Allele frequency of A whose phenotype are green grasshoppers is 0.2 to find the frequency for a (brown grasshoppers) will be';

1-0.2=0.8

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4 years ago

During vigorous exercise, one would expect: Question 5 options: Blood to be diverted from the brain Blood to be diverted to the

zhenek [66]

Answer: I would say the answer is blood to be diverted to the muscles doing the work out and blood to be diverted from the brain

Explanation: that’s the answers that make the most sense to me, not totally sure tho

7 0

3 years ago