Biology, 23.03.2021 18:30 10027945

Student Exploration: Effect of Environment on New Life Form Prior Knowledge Question (Do this BEFORE using the Gizmo.)
Johnny likes to watch the birds that visit his birdfeeder. His favorite bird is the cardinal. How could Johnny determine which kind of birdseed cardinals prefer? Explain your answer in detail.

Gizmo Warm-up
Imagine a new alien life form has just been discovered on a nearby planet. Your job is to study this new life form. The Effect of Environment on New Life Form Gizmo shows 100 individuals that have been transported from the planet to your laboratory.

1. The new life form can have three shapes: thin, medium, and thick. How many of each shape are there now?

Thin: Medium: Thick:

2. Click Play ( ). Do the numbers of each type of alien change over time?

3. Click Reset ( ). A variable is something that can be changed in an experiment. Look on the SIMULATION pane. What are the three variables you can change in your laboratory?

4. Which of these variables do you think will have the greatest effect on the aliens? Explain.

Activity:

Controlling variables Get the Gizmo ready:
• Click Reset.
• Select the BAR CHART tab.
• Turn on Show numerical values.

Question: What variables control the shape of the alien life forms?

1. Record: Record the starting numbers of thin, medium, and thick aliens:

Thin: Medium: Thick:

2. Observe: Change the Light to 0 hours/day, the Water to 1 drops/hr, and the Temp. to
0 °C. Click Play, and observe the aliens until the numbers are stable. Click Pause.

A. How many of each type of alien are there now?

Thin: Medium: Thick:

B. Click Reset. Change the Light to 24 hours/day, the Water to 20 drops/hr, and the Temp. to 30 °C. Click Play. How many of each type of alien are there now?

Thin: Medium: Thick:

3. Analyze: From the observations you made above, can you state exactly why the aliens changed their shape? Why or why not?

4. Form a hypothesis: A hypothesis is a proposed explanation for an observation. Hypotheses must be testable. Write a hypothesis about what causes the aliens to change their shape.

(Activity continued on next page)

Activity (continued from previous page)

5. Design an experiment: A controlled experiment is an experiment in which only one variable is changed at a time.

Describe a controlled experiment you could use to test your hypothesis.

6. Run the Gizmo: Run a controlled experiment to test your hypothesis. Describe the results of your experiment below.

7. Run the Gizmo: Run controlled experiments to determine the effect of each variable.

A. How does changing the amount of light affect the aliens?

B. How does changing the amount of water affect the aliens?

C. How does changing the temperature affect the aliens?

8. Draw conclusions: Which variable or variables affected the aliens?

9. Think and discuss: Why is it important to only change one variable at a time? If possible, discuss your answer with your classmates and teacher.

Answers: 1

Show answers

Answers

Answer from: Quest

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

read more on -

explanation:

Answer from: Quest

the answer is admiramos

the rule for verbs is whoever you are referring to (in this case 'nosotros'), you need to change the ending of the word.

nosotros - amos

yo - o

tu - as

el, ella, usted - a

ellos, ellas, ustedes - an

(examples: nosotros bailamos (instead of bailar) or yo hablo (instead of habla)

Answer from: Quest

Glucose, also called grape sugar, blood sugar or corn sugar, is among the simplest and one of the primary naturally occurring sugars. produced naturally by plants as the primary photosynthesis product, it is heavily used by living beings as a main energy source and is necessary for cellular respiration. chemically, it is a monosaccharide carbohydrate and serves as a building block for complex sugars like starch.

Answer from: Quest

Science27 of the most iconic, jaw-dropping photos of the earth and the moon from spacedave mosher oct 1, 2018, 11: 13 am etnasa/flickrapollo 11 astronauts took this photo of earth on july 20, 1969.from the ground, earth looks like a boundless fertile plain that beckons to be explored and exploited.but astronauts would beg - and even plead - to differ."you realize that people often say, 'i hope to go to heaven when i die,'" jim lovell, an astronaut who flew on the apollo 8 and apollo 13 missions to the moon, previously told business insider. "in reality, if you think about it, you go to heaven when you're born."lovell has seen first-hand that we live on a tiny rock hopelessly lost in the void. he's also quick to tell you it's the only one we've got - a fragile spaceship for more than 7 billion people: "you arrive on a planet that has the proper mass, has the gravity to contain water and an atmosphere, which are the very essentials for life. and you arrive on this planet that's orbiting a star just at the right distance - not too far to be too cold, or too close to be too hot - and just at the right distance to absorb that star's energy and then, with that energy, cause life to evolve here in the first place. in reality, you know, god has really given us a stage, just looking at where we were around the moon, a stage on which we perform. and how that play turns out is up to us, i guess."humanity has recorded photos of earth from hundreds, thousands, millions, and even billions of miles away, some of them taken by lovell himself.these images not only scientists study our dynamic world, but also understand how a habitable planet looks from afar, which aids the search for more worlds. most importantly, however, the images underscore our peculiar existence on a mote of cosmic dust.take a moment to ponder 27 of the most arresting images of earth that humankind has ever captured from space.a

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Student Exploration: Effect of Environment on New Life Form Prior Knowledge Question (Do this BEFOR...