rubber duck review!. review questions a: a while observing an elodea plant cell through a...

RUBBER DUCK REVIEW!

REVIEW QUESTIONS

A: A

While observing an Elodea plant cell through a microscope, a student noticed some small, moving green disks. These organelles were most likely which of the following?

a. chloroplastsb. leucoplastsc. mitochondriad. ribosomes

Why did this plant respond this way?

A: Lack of water

What does PHOLEM transport?

A: SUGAR

A: WATER

What does XYLEM transport?

Oleander Leaf Scorch is a disease that affects oleander plants in Southern California. The plant is infected in an interesting way. There is an insect that drinks the fluid from the oleander xylem. The insect is carrying a bacterium, Xylella fastidiosa. When the insect begins to drink, it injects the bacterium into the xylem. The xylem is then blocked by all of the bacteria.

What negative effect would this have on the oleander plant?a. The oleander would not be able to cross-pollinate.b. The bacteria would provide nutrients for the plant, so the oleander

would stop photosynthesizing.c. The oleander would die due to loss of water.d. The insect would drink nectar from the flowers instead

A: C

What was the structure called that Ralphie fell through in the Magic School Bus “Gets Planted?”

A: Stomata

A: Guard Cells

What are the 2 cells called that make up the Stomata called?

A: C

The stomata will open or close in response to water pressure in the:

a. root cells

b. cell walls

c. guard cells

d. xylem

What is the climate like in this biome?

A: hot & dry

What biome is this?

A: Desert

A: ACacti keep their stomata closed for much of the day. What is the result of the cacti keeping their stomata closed?

a. It limits water loss through transpiration.

b. It conserves oxygen produced in photosynthesis.

c. It recycles carbon dioxide within plant systems.

d. It protects plant tissues from predators.  

What is the process above

called? Describe this process.

A: Pollination = Animals are drawn to the flowers bright

colors. While there they suck the sweet nectar out of flowers and get coated w/ pollen and brush against the pistil. The pollen tube grows from the stigma style ovary and fertilizes the seeds!

What does the suffix “-cide” mean?

A: Death

A research scientist is attempting to create a chemical herbicide that acts by causing the pollen to be deformed. What is expected to happen in plants sprayed with this chemical?

a. non-functioning flowersb. root rotc. withered stemsd. yellow leaves

A: A

A: The Mutt

Which dog would have a better chance of survival in the wild, the pure breed that is homozygous for its traits or the mutt that is heterozygous for his traits?

Why does the heterozygous mutt have a better chance at survival in the wild?

A: His genes are more diverse

Which ecosystem has a better chance of surviving when environmental conditions change over a long period of time?

a. One with a great deal of genetic diversity

b. One with plants and animals but no bacteria

c. One with animals and bacteria but no plants

d. One with little or no genetic diversity

A: A

What do plants NEED in order to survive?

A: Water, Carbon Dioxide & Light

PHOTOTROPISM is when a plant grows toward a stimulus. What stimuli do you think it is growing toward?

A: LIGHT

Some species of kelp anchor themselves to the seafloor. These species have small air sacs, called air bladders, at the base of each leaf. The air bladders raise the top of the kelp to the water's surface. What advantage do air bladders give the kelp?

A. They allow the kelp to obtain more salt from the water.

B. They prevent the kelp from breaking during a storm.

C. They allow kelp leaves to receive greater amounts of sunlight.

D. They provide the kelp with protection from herbivores.

A: C

What BIOME is this?

A: TUNDRA

How are plant life adapted to this environment?

A: plants are small & they grow close to the ground

Which of the following is most likely to disrupt an arctic ecosystem?

a. global warming leading to melting of glaciers

b. drought due to El Nino weather pattern

c. oil spills from ruptured wells in the Gulf of Mexico

d. a massive tornado

A: A

What differs in these

2 consumers diets?

A: The bull is an herbivore, & the bear is an omnivore.

What happens to the population that is preyed on by predators when the predators are removed?

A: The prey can reach itscarrying capacity.

If an entire black bear population disappears, what is likely to happen to the fish population on which it preys?

a. The fish population would decrease.b. The fish population would be

unaffectedc. The fish population would increase.d. The black bear population doesn’t

affect the fish population.

A: C

AN ENVIRONMENT advocate warns that rainfall is expected to increase by at least 14 percent in East Asia as the world gets hotter due to climate change.Elisea G. Guzon, Presidential Assistant on Climate Change, said climate change contributes to the risk of more rainfall because the world is experiencing “global fever” due to green gases.Guzon, however, said the increase in rainfall is not evenly distributed among East Asian countries.“The major consequence of climate change is the variability of precipitation which means that too much heat can cause too much evaporation that leads to rainfall,” she said during an environmental forum at Xavier University over the weekend.Guzon said greenhouse gases like carbon dioxide and methane can cause greenhouse effect.“It will continue to get hotter in this century and beyond,” she warned as she pointed to people who are “causing a dangerous trend.” She, however, failed to elaborate.. Guzon said an average of 20 typhoons enter the Philippines every year and because of climate change, the typhoons will become either stronger or will bring in more rain.In December, Tropical Storm Sendong devastated some parts of Cagayan de Oro and Iligan City, which left thousands dead and missing.The weather bureau said ‘Sendong’ poured in more rain compared to ordinary typhoons, much even more than Typhoon Ondoy.According to Graciano Yumul, officer-in-charge of the Philippine Atmospheric Geophysical and Astronomical Services Administration (Pagasa), the normal rainfall in Cagayan de Oro for the month of December is 113.2 millimeters (113.2mm).Guzon added that the rise in sea level is also the effect of climate change.“The glaciers are melting because of heat. The rising sea level will erode beaches, intensify flooding, inundate wetland and other low-lying lands and increase the salinity of rivers, bays and ground water tables.” “We have to plan and work together, government and private sectors, non-government organizations, the academe. Everyone should help each other because it is our shared responsibility,” she said.

READING:

Based on the journal entry above, how did this environmental change affect the environment?

a. It caused increased rainfall in East Asia

b. There will be more grass in a certain meadow.

c. A small creek dries up every summer.d. Additional ice will be added to the

glaciers.

A: A