What are the frist 3 stages of the cell cycle called?

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Answer 1

Answer: The first three stages of the cell cycle are collectively called the "Interphase". Interphase comprises 3 stages specifically G1, S1 and G2. G1 is called the First Gap Phase, followed by S phase for synthesis and then G2 for the second gap phase. I hope this helps you.

Answer 2

Answer: Interphase proceeds in three stages, G1, S, and G2, preceded by the previous cycle of mitosis and cytokinesis. The cell's nuclear chromosomes are duplicated during S phase.

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For a given species an increased evolutionary rate would cause a decrease in

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For a given species an increased evolutionary rate would cause a decrease in mutation rate.
>Three factors that would increase the rate of evolution would be the intensity of directional selection, an increase in the birth rate, hence an increase in the number of possible beneficial mutations, and an increase in the population size.>There are many limiting factors that might control the evolutionary rate of change. Physical or biological changes influencing the environment can play a major role in the rate of evolutionary change.

What does this mean Hydrogen Bonding

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A hydrogen bond is the electrostatic attraction between polar groups that occurs when a hydrogen (H) atom bound to a highly electronegative atom such as nitrogen (N), oxygen (O) or fluorine (F) experiences attraction to some other nearby highly electronegative atom.

Antoinette was diagnosed with hypertension, a noncommunicable disease in which her blood pressure is higher than normal. What is the most likely explanation for why she is hypertensive?

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The answer is most likely, "She was obese and had a diet high in salt intake."

Answer:

Explanation:

The carbon footprint of an activity is used to assess environmental pollution. What does it measure?

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I believe I answered a question similar to this one, not sure if it was yours but anyway.

Carbon footprint measures emission amount of Carbon dioxide ${ CO }_( 2 )$ and Methane ${ CH }_( 4 )$

Which means of particle transport requires input of energy from the cell?A) Diffusion
B) Osmosis
C) Facilitated diffusion
D) Active transport

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D) Active transport. In this process, dissolved molecules move across plasma membrane from a lower to higher concentration. Because they move against the concentration gradient, an energy from the cell is required.

Answer:

Explanation:

Did any species pairs in part B show more than one barrier to reproduction? List examples, and describe the barriers they display

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Final answer:

Yes, species pairs show more than one barrier to reproduction. Examples include damselflies with incompatible reproductive organs, species of flowers attracting different pollinators, bird species with different mating dances, and species producing infertile offspring.

Explanation:

Yes, there are several instances where species pairs show more than one barrier to reproduction. These barriers can be prezygotic or postzygotic. Examples include damselfly males and females of different species that have differently shaped reproductive organs, thus creating a mechanical barrier. This means their body parts simply do not fit together and reproduction cannot occur.

Also, two species of flowers may attract different pollinators, creating a barrier known as habitat isolation, in which the species live in the same area but different habitats. Furthermore, bird species may display different mating dances. This is behavioral isolation where species differ in their mating rituals. There's also reduced hybrid fertility where two species of insects produce infertile offspring. The mechanisms of reproductive barriers in nature are complex and diverse in their operation.

Learn more about Barriers to Reproduction here:

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