Semester 1 Finals

Question 1

Most starfish turn their cardiac stomach inside out to eat captured prey. The cardiac stomach digests the food outside of the body and, when complete, returns to the inside of the body. What term applies to the cardiac stomach?

Answer 1

organ

Question 2

What steps will reduce the amount of an input to photosynthesis?

Answer 2

cover half of the plant’s stomata and reduce the amount of sunlight that is available to the plant

Question 3

Homeostasis

Answer 3

the maintenance of constant internal conditions in an organism

Question 4

Cell –> Biome

Answer 4

Atom → Molecules → Cells → Tissues → Organs → Organ Systems → Organisms → Population → Community → Ecosystem → Biomes → Biosphere

Question 5

What are the characteristics of living things?

Answer 5

Homeostasis, reproduction, metabolism, DNA, made of cells, ability to adapt to environments

Question 6

hypothesis

Answer 6

a proposed explanation made based on limited evidence as a starting point for further investigation

Question 7

Control Group

Answer 7

the standard to which comparisons are made in an experiment

Question 8

Independent variable

Answer 8

a variable whose variation does not depend on that of another

Question 9

Dependent variable

Answer 9

a variable whose value depends on that of another

Question 10

centi

Answer 10

0.01 of a unit

Question 11

milli

Answer 11

0.001 of a unit

Question 12

micro

Answer 12

0.000001 of a unit

Question 13

kilo

Answer 13

1000 units