what is the shape of earth's orbit around the sun

Question

A.a circle
B.a spiral
C.a sphere
D.an ellipse

Answer 1

D. an ellipse

Answer 2

a group of cells working together to preform a certain job is called a(an)
A.relationship
B.organ
C.organism
D.tissue
E.organ system

Answer 3

B. organ

Answer 4

which of the following does not directly support the continental drift theory?
A.coal deposits in south America and Africa contain the same species of extinct trees and ferns
B.the continents fit together like a jigsaw puzzle
C.deposits of the mineral basalt are found on all continents
D.the Atlantic sea floor is slowly spreading
E.satellite shows landmarks on earth's surface are slowly moving

Answer 5

C. deposits of the mineral basalt are found on all continents

Answer 6

which is an example of a physical change?
A.rusting iron
B.toasting bread
C.burning leaves
D.boiling alcohol

Answer 7

B. toasting bread

Answer 8

a pond ecosystem is made of plants, fish, and algae.
which phrase describes a population within the ecosystem?
A.an individual plat that lives in the ecosystem
B.all the different species of fish in the ecosystem
C.all the algae of the same species in the ecosystem
D.a set of two species that interact within the ecosystem

Answer 9

C. all the algae of the same species in the ecosystem

Answer 10

which organism is not unicellular
A.amoeba
B.diatom
C.euglena
D.paramecium
E.volvox

Answer 11

E. volvox