Brain fam! which statement best explains the impact of space technology on air travel? air travel has become more comfortable because magnetometers are used to detect particles found in radiation. air travel has become safer because photopolarimeters are used by aircrafts to send signals while flying at high altitudes. air travel has become more comfortable because the high-gain antenna has been able to measure the magnetic fields around aircraft. air travel has become safer because the technology for landing on planets is used on earth in parachutes and other air safety devices.

*will mark brainliest for first correct answer* which of the following is most likely to affect the biodiversity of a park ecosystem? a. less rain than usual for several months b. ongoing pollution from a nearby factory c. park rangers plant a new type of tree d. disease wipes out an entire population

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.

Which tool could you see a plant cell? a. a filter b. a microscope c. a microwave d. an electromagnet