Samantha measures the length of her shadow on the playground at different times of day. She records her data below. Shadow Length Data

Time Length (cm)

7:00 AM 255

8:00 AM 178

9:00 AM 120

10:00 AM 85

Which of the following best explains Samantha's results?

A.

The Sun has stayed in the same position all morning.

B.

The Sun is higher in the sky later in the morning.

C.

Samantha has grown taller through the morning.

D.

The Sun is lower in the sky later in the morning.

With the description of the different cell walls, membranes, and associated proteins set in the students' minds, you now need to introduce them to the idea that the cell wall can also act as a foundation to build things upon. bacterial appendages require a strong foundation that will offer the support needed to move and function in a dynamic world. for example, flagella are long, whiplike protein structures that are used by many gram-positive and gram-negative bacteria for locomotion. in order to function effectively, a flagellum must be firmly anchored to the cell wall. how will you be able to get across the idea that the peptidoglycan cell wall is strong enough to support such a mechanism? with a protein rod that passes through the cell wall and protein rings used to anchor it in the membranes, these basal bodies are the rudimentary biological motors that use atp power to spin the hook and the flagella attached to it. bacterial flagella have a biological motor that spins within the cell wall and is powered by atp. this allows the flagella to spin in a whiplike motion to propel the bacterium.

Select the correct answer. a chestnut-colored horse mates with a white-colored horse to produce a brown and white spotted offspring. what is the type of inheritance pattern?

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?