Question

As we respire, we release CO 2. The CO 2 comes from ________.

                a. drinking water

                b. the air

                c. the breakdown of sugar in our food

                d. sunlight

Which function below is performed by eukaryotic cells but not prokaryotic cells?

                a. internal digestion of cellular garbage by membrane-bound organelles called lysosomes

                b. production of proteins coded by DNA

                c. regulation of cell function by changes in the activity of genes

                d. reproduction

A small group of 25 predatory birds populates an island. By chance, three members of the population have superior sight, which gives these birds a significant advantage in capturing prey. After hundreds of generations, the population on the island has risen to 1,500 and all of the birds have superior sight compared to the same species on other islands. This is an example of ________.

                a.            order

                b.            evolution

                c.             regulation

                d.            energy utilization

A scientist notices that a warning light has been triggered on a piece of equipment that he is using. This is a(n) ______.

                a. question

                b. observation

                c. prediction

                d. hypothesis

A single-celled eukaryotic organism that is neither a consumer nor a decomposer and does not have a cell wall would most likely by classified in __________.

                a. the kingdom Animalia

                b. the domain Archaea

                c. one of the kingdoms of Protista

                d. the kingdom Plantae

Local farmers think that a commonly used pesticide is responsible for the increase in appearance of frogs with an additional appendage. To test this hypothesis, frogs are injected with a small amount of pesticide. The frogs are allowed to produce offspring to test the effect of the pesticide. Which of the following would be the BEST controlled experiment?

                a. One group is injected with pesticide, and one group has the pesticide rubbed on their skin.

                b. One group is injected with pesticide, and one group is not injected with anything.

                c. One group is injected with water, and one group is injected with pesticide.

Which sequence lists organisms in the order of producer, consumer, and decomposer?

                a. bird, earthworm, algae

                b. algae, earthworm, bird

                c. earthworm, algae, bird

                d. algae, bird, earthworm

Organism is to population as population is to ___________.

                a. community

                b. cell

                c. biosphere

                d. ecosystem

Answer 1

1) correct option : C

As we respire , we release CO2 . The CO2 comes from breakdown of sugar in our food . glucose reacts with oxygen and produces 6 CO2 molecules plus 6 water molecules and energy

2) correct option : A

Internal digestion if cellular garbage by membrane bound organelles called lysosomes . In prokaryotes membrane bound cellular organelles are absent like lysosomes , endoplasmic reticulum , mitochondria

3) Correct option : B (Evolution)

Above example explains the survival of the fittest

In evolution superior qualitiy population are selected and they selected .Remaining population with inferior qualities are eliminated due to lack of food

4) Correct answer : Hypothesis

The above answer is hypothesis rather than a observation

5)

C) One of the kingdoms of protista

6)

b) one group is injected with pesticide and another group not injected with anything

7)

d) algae , bird , earthworm

8)

a) community