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Len [333]
3 years ago
15

A river separates two groups of mice, one black and the other all white. a beaver dam allows the mice to cross the river. over t

ime, many gray mice are born. the river is lined with light stones. gray mice are most visible to hawks that fly overhead and feed on mice. although many gray mice are born, not many live long enough to reproduce. what is this an example of?
Biology
2 answers:
strojnjashka [21]3 years ago
4 0
This is an example of disruptive selection.
Vesna [10]3 years ago
4 0

Answer:

Disruptive selection

Explanation:

Disruptive selection is a type of natural selection that occurs when the extreme phenotypes have increased survival fitness that the phenotypes with the intermediate trait. The disruptive selection favors the extreme phenotypes at the expanse of the intermediate phenotype.

In the given example, the intermediate phenotype (the gray mice) have lesser survival fitness as they are visible to predators. The disruptive selection does not favor gray mice and leads to the evolution of populations of black and white mice.  

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The enzyme lactase get used up in the reaction<br><br> true/false
expeople1 [14]

Answer:

False

Explanation:

Hope this helps!

Good Luck!

4 0
2 years ago
Read 2 more answers
List the eight categories of biological classification of organisms from the most general category to the most specific.
NARA [144]

Answer:

Classification of biological organisms from most general to most specific is -

Domain

Kingdom

Phylum

Class

Order

Family

Genus

Species

Explanation:

A hierarchy system of taxa or ranks of living organisms up to species level is known as taxonomic classification. It includes a higher and most generalized rank domain consist of archaea, bacteria, and eukarya. Second most generalized ranks kingdom that consist of various kingdoms.

Less generalized ranks are in order of a decrease in general and an increase in specificity are phylum, class, order, and family and the most specific ranks are genus and species.

8 0
3 years ago
Choose all the answers that apply.
nekit [7.7K]

Answer:

carry thousands of genes

Explanation:

Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. Some traits are caused by mutated genes that are inherited or that are the result of a new gene mutation.

7 0
3 years ago
Read 2 more answers
Breathing into and out of a paper bag for a long period of time will lead to?
Ilya [14]

Breathing into and out of a paper bag for a long period of time will lead to respiratory acidosis.

<h3>What is respiratory acidosis?</h3>
  • When the lungs are unable to expel all of the carbon dioxide the body produces, a condition known as respiratory acidosis develops.
  • Body fluids, particularly the blood, become too acidic as a result.
  • The main causes of respiratory acidosis are inadequate ventilation and carbon dioxide buildup.
  • The main issue is an increase in arterial carbon dioxide partial pressure (pCO2) and a decline in the arterial bicarbonate to arterial pCO2 ratio, which causes a drop in blood pH.
  • When there is acute respiratory acidosis, the body initially tries to make up for it.
  • If the acidosis lasts more than 12 hours, a reaction known as metabolic compensation2 takes place.
  • By increasing the release of hydrogen ions through ammonium, the kidneys will lower the blood's acidity.
  • Too much carbon dioxide in the body can result in general symptoms including headache, exhaustion, and twitching muscles.
  • Frequently, it goes away fast on its own.
  • But in cases of severe hypercapnia, the body is unable to return to a stable CO2 level, and the symptoms are more severe.

Learn more about respiratory acidosis here:

brainly.com/question/9694207

#SPJ4

7 0
2 years ago
Bengal Tigers (Panthera tigris tigris) have coat colors that are either golden (the dominant trait) or white. In examining a pop
Hoochie [10]

Answer:

5%

Explanation:

Frequency of white tigers = 4%

population of tigers = 200

number of heterozygotes = 10

<u>Determine the actual genotype frequency of Heterozygotes </u>

frequency of heterozygotes = Number of heterozygotes / population

= ( 10 / 200 ) * 100

= 0.05 * 100 = 5%

7 0
3 years ago
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