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Alina [70]
3 years ago
7

Please help me I don't understand

Biology
1 answer:
Aliun [14]3 years ago
4 0

Answer:

D

Explanation:

All of the other options go against actual facts and the laws of biology

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Fetus...................
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Read the passage. Then evaluate the need for a solution and consider each solution suggested. Which solution do you think is mor
katovenus [111]

Answer:

Cat.

Explanation:

Introduction of cat can control the population of mice on the island more effectively as compared to the introduction of disease because the introduction of disease can cause damage to other population of that environment that adversely affected the ecosystem. Cat feeds on mice that act as a controlling agent in this ecosystem that will leads to decrease as well as controls the population from increasing in order to cause damage to the environment.

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The human respiratory syncytial virus nonstructural protein 1 regulates type i and type ii interferon pathways
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I am not sure but here is a link to help you :)

https://www.ncbi.nlm.nih.gov/pubmed/22322095
6 0
3 years ago
I only need help with number 2 and 3 please answer both i mark you as brainlist
kakasveta [241]

Answer:

Reading graphs: The variable plotted on the x-axis is year while the two variables plotted on y-axis are both wolves and moose.

Interpreting variables: The population of moose rose from 800 to 1550 between 1965-1972 while the population of wolves rose from 24 to 43 between 1973-1976.

inferring: The change in population of moose might cause a change in wolves population as a result of the feeding pattern of wolves, perhaps the contest between them was affected by availability of another prey which allows the predator (wolves) to feed on another prey, hence increasing the population of moose.

Conclusion: The dip in population of moose between 1974 and 1981 could be attributed to voracious feeding pattern the predator (wolves) had on the prey (moose) which inturns allows the dip in population during the above mentioned years.

Predicting: If there is a disease infection in wolves, then there would be an increase in the population of moose the next year as a result of disruption in the predator-prey contest, hence; allows one to be more populated the following year.

Explanation:

From the above assertions, it could be deduced that only when the feeding pattern of the predator (wolves) changes then the population of the prey would either be reduced or increased.

5 0
3 years ago
Think about the two words that make up the term reproductive isolation. How do you think reproductive isolation affects the evol
Hitman42 [59]

Answer:

Reproductive isolation refers to the inability of an organism or species to breed successfully with other organism or species.

It may arise from various factors such as:

  • Geographical isolation such as river, mountain, etc
  • Behavioral changes such as mating time or season, mating rituals, mating location etc.
  • Physiological differences such as change in shape of sex organs which causes lack of fit between copulatory organs.
  • Genetic differences.

Reproductive and geographical isolations between two populations (of same species) inhibit the flow of genes among them. Slowly, these isolations increase the variations in the gene pools of the two populations.

These genetic variations keep on increasing with time. In addition, as an adaptation to their surrounding or habitat the two populations would develop different behavioral and physiological changes

With time, these differences will increase up to such an extent that the two populations would not be able breed with each other. Hence, it would lead to the evolution of one or both the populations into new species.  

7 0
3 years ago
Read 2 more answers
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