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Deffense [45]
3 years ago
5

Question 3 (1 point)

Biology
1 answer:
Annette [7]3 years ago
4 0

Answer:

  1. Ask a question.
  2. Form a hypothesis
  3. Perform experiment
  4. Analyze data

Explanation:

Hopes this helps :)

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Which structure is located between the trachea and a bronchiole?
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Answer:

pharnyx

Explanation:

8 0
3 years ago
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Natural selection causes A. changes in allele frequencies within a population. B. changes in the mechanism of inheritance. C. th
wolverine [178]

Answer:

Natural selection causes change in allele frequencies within a population.          

So option A is correct one.

Explanation:

Natural selection generally  work  on an organism’s phenotype, or observable features. Phenotype is often largely a product of genotype (the alleles, or gene versions, the organism carries). When a phenotype produced by certain alleles helps organisms survive and reproduce better than their peers, natural selection can increase the frequency of the helpful alleles from one generation to the next – that is, it can cause microevolution.

4 0
3 years ago
A small island is home to a unique population of land snails. This population was founded by 10 individuals that floated to the
vekshin1

Answer:

  • The Island population likely has fewer alleles-that is versions of genes-than the mainland population.

       A- Agree <u>B- Disagree</u>

  • Genetic drift is more pronounced in the island population than in the mainland population in these first few generations

       A- Agree <u>B- Disagree</u>

  • Some harmful traits may have become more common in the island population than in the mainland population

       <u>A- Agree</u>- B- Disagree

  • Biologist observed genetic drift but not evolution

       <u>A- Agree</u> B- Disagree

Explanation:

If there was genetic drift, then allele frequency either increased or decreased by chance, irrespective of natural selection that is irrespective to weather those alleles helped individuals survive in the island environment. In molecular genetic data, there are statistical signature in the  population variation that indicate weather selection or other processes occurred.

7 0
3 years ago
What is a difference between endocrine and exocrine glands?
valentina_108 [34]
The correct answer is option C. Endocrine glands secrete hormones into the bloodstream because endocrine glands are ductless and the exocrine glands have ducts so they secrete their hormones into the ducts.









3 0
3 years ago
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Photosynthesis is used to produce food for plants in the form of glucose. In the process, oxygen is released. As shown in the di
postnew [5]

Answer:

light is required to provide energy for photosynthesis

Explanation:

For photosynthesis to take place, it requires the presence of light and chlorophyll. The process has two stages; light and dark stage.

In the light stage, chlorophyll molecules absorb light energy which is used to split water molecules into oxygen and hydrogen atoms. The process is called photolysis.

water→ hydrogen atoms + oxygen.

The hydrogen atoms produced enter the dark stage while oxygen is released in the atmosphere. In the dark stage, carbon dioxide combines with the hydrogen atoms to form simple sugar such as glucose.

7 0
3 years ago
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