Practice Regents - Part A

Which two body systems provide humans with the raw materials necessary for their cells to release energy?

• muscular and skeletal

• endocrine and nervous

• digestive and respiratory

• reproductive and circulatory

An example of an activity that best contributes to maintaining homeostasis in an organism is a

• bear eating fish from a polluted stream

• deer losing its fur at the start of winter

• person not sweating on a 100°F day

• response to a chickenpox vaccination

Tags

NGSS.MS-LS1-3

Equine cloning can be used to produce performance horses. Although the horses are clones of each other, they may still exhibit slight differences in appearance. The differences in the physical characteristics of the cloned horses are most likely the result of

• environmental influences

• natural selection

• sexual reproduction

• changes in gametes

Tags

NGSS.MS-LS1-5

Which situation is an example of an organism responding to an abiotic factor?

• Plants in a forest grow toward areas where there is more sunlight available.

• Rabbits attract mates by performing a mating dance.

• Woodpeckers peck holes in the trunks of trees to find insects for food.

• Deer eat tree bark in winter when other food is scarce.

Tags

NGSS.MS-LS1-5

Studying fossils provides evidence for evolution because fossils

• take a long time to form

• can show patterns of biological change over time

• always contain complete DNA sequences

• found in the same area are usually closely related to each other

Tags

NGSS.MS-LS4-1

Which statement best describes the interactions between the structures found within a single-celled organism?

• They allow the organism to maintain homeostasis.

• They prevent homeostasis from damaging the cell.

• They must act independently of each other and prevent homeostasis.

• They carry out the same life process in order to maintain homeostasis.

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-2

Sexually reproduced offspring have traits similar to their parents because they receive

• all of the proteins from each parent

• some of the proteins from both parents

• all of the genes present in both parents

• some of the genes present in each parent

Tags

NGSS.MS-LS3-2

A response of a normally functioning immune system that can be harmful is

• being infected by the flu virus

• rejecting an organ transplant

• recognizing chemical signals

• fighting off a bacterial infection

Which molecules are normally found in single-celled organisms?

• organic molecules, only

• inorganic molecules, only

• both organic and inorganic molecules

• neither organic nor inorganic molecules

Hammerhead sharks are unlike most other shark species. Nearly all shark species either lay eggs or give birth to live young after their eggs hatch internally. Hammerhead sharks form a placenta, a structure more commonly found in mammals, such as humans. One role of the placenta in the development of offspring is normally to

• produce blood cells

• provide milk

• produce gametes

• transfer nutrients