BIOLOGY MIDDLE SCHOOL

Based on the organization of living things, how could we classify the pollen produced by the flower?

Answers

Answer 1
Answer:

Answer:

D) begins as a cell, comes from an organ, is part of a system

Explanation:

Your welcome :)
Answer 2
Answer: By classifying a limabean and wait for it to grow to classify it so it's way more easier to look at the pollen and that's how you classify pollen from a flower.!!!

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What body system does this structure belong?

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circulatory system.

What does the allele frequency have to total in the hardy- Weinberg equilibrium?

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In addition, the sum of the allele frequencies for all the alleles at the locus must be 1, so p + q = 1. ... In population genetics studies, the Hardy-Weinberg equation can be used to measure whether the observed genotype frequencies in a population differ from the frequencies predicted by the equation.

Hope this helps

Answer:

1. directional selection

2. Hardy-Weinberg equilibrium

3. sympatric

4. This is allopatric speciation.

5. This is an example of stabilizing selection in a population because the organisms in the middle of the population have the best fitness for their environment.

6. The five conditions impacting this equilibrium are: mutations, nonrandom mating, genetic drift, migration, and natural selection.

7. Natural selection impacts single-gene traits because of the possible extinction of one trait or increase of another trait. If a trait is found to be not preferable in that environment, it could be eliminated through natural selection.

8. The total allele frequency in the Hardy-Weinberg equilibrium has to equal 1.:

from Penn Foster

What are Carbon Films (Fossils)

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they are thin film coatings Which consist predominantly of the chemical element carbon.

Nitrogen in the atmosphere must be "fixed" before it can be used by plants. Atmospheric nitrogen is "fixed" by

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Answer: nitrogen fixing bacteria

Explanation:

Nitrogen in the forms of nitrates, nitrites and ammonia are essential for the growth of the plants. Nitrogen present in the atmosphere is fixed in the soil by the nitrogen fixing bacteria. As plants cannot absorb nitrogen from the air. The bacteria convert atmospheric nitrogen into inorganic forms such as nitrates, nitrites and ammonia which are directly absorbed by the plants by their roots.
The enormous energy of lighting breaks nitrogen molecules and enables there atoms to combine with oxygen in the air forming nitrogen oxides. These dissolve in the rain, forming nitrates that are carried to Earth. 

Reptiles have a special egg that feeds their young called a(n)?

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Reptiles have a special egg that feeds their young called an amniotic egg. Therefore, option (B) is correct.

Reptiles, birds, and certain mammals reproduce on land thanks to the amniotic egg's extraordinary evolution. Its shell protects the embryo from external dangers and desiccation. The amnion, which encloses the embryo in a fluid-filled chamber, is a key element of the amniotic egg. Amniotic fluid protects the embryo from mechanical shocks and allows gas exchange.

Reptiles can lay eggs on land without returning to water thanks to the amniotic egg, which marks the transition from aquatic to terrestrial life. This adaptability has helped reptiles colonise different ecosystems worldwide. Therefore, option (B) is correct.

Learn more about amniotic egg, here:

brainly.com/question/31446677

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It is called an amniotic egg.

What landform dominates the United States

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Most of the land is taken by plains
Most of the USA is dominated by plains. ☺
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