Chapter 1

Question 1

Why are viruses NOT a cell?

Answer 1

1. Rely on a host to multiply
2. Can’t maintain energy
3. Can’t reproduce
4. They don’t grown
5. They can’t make their own energy

Question 2

Which is largest a protein or a virus?

Answer 2

Virus

Question 3

In which type of reproduction (sexual or asexual) are the offspring identical to the parents?

Answer 3

Asexual

Question 4

What is the difference between natural selection and evolution? Give an example of each.

Answer 4

Evolution is
1. Over generations and populations
2. Due to change in environment conditions
3. Continually evolve
Example: Galapagos Island Finches
Selection is..
1. Individually, change or mutations will occur in one animal within the same species
2.Random mutations occurs
3. Varies in heritable traits

Question 5

If a plant is growing in full, direct sunlight, the auxin hormone is evenly distributed in all cells of the plant, and it will grow straight up. However, if the plant is brought indoors at the end of the summer, and placed in a room with one window, which side of the plant will have higher levels of auxin in the cells?

Answer 5

The plant that will have higher levels of auxin in the cells is the side facing the sunlight.

Question 6

How does the action of this hormone help the plant to bend and grow towards the light?

Answer 6

The action helps because the side that’s getting the sun is making sure the shady side of the plant is getting the benefits. Auxin molecules move to the side of the plant with the least sun exposure.

Question 7

List all the characteristics of living organisms along with an example for each.

Answer 7

1. They can grow, plants get bigger
2. Reproduction, people have babies sexually
3. Maintain energy, and Homeostasis, people eat food which gives us energy