Living Environment Regents Questions

Caffeine is a compound found in the seeds of many different plants, such as coffee beans, cola nuts, and cacao beans (the source of chocolate). The presence of this chemical in all three types of plants suggests that these plants

• inherited identical mutations
• share a common ancestry
• were exposed to the same type of radiation in the past 
• were cloned from a caffeine plant

Tags

NGSS.MS-LS4-2

The corn we eat today is larger and has more kernels than the corn people first grew thousands of years ago. Which process is most likely responsible for the changes that have occurred? 

• mitosis
• direct harvesting
• succession
• selective breeding

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

The technique used to separate the DNA for analysis is 

• genetic engineering
• chromatography
• electrophoresis
• protein synthesis

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables

Continued depletion of the ozone layer will most likely result in

• an increase in skin cancer among humans 
• a decrease in atmospheric pollutants 
• an increase in marine ecosystem stability 
• a decrease in climatic changes

An error in DNA copying that results in a new trait

• Homeostasis
• Mutation
• Natural Selection
• Selective Breeding

Tags

NGSS.HS-LS3-2

Which statement is characteristic of reproduction in humans?

• The reproductive cells of males and females differ in chromosome number.

• Males and females produce gametes in the ovaries.

• Males and females produce the same number of gametes.

• The reproductive cycles of males and females are regulated by hormones.

Tags

NGSS.HS-LS3-1

A diagram of the female reproductive system is shown below. Identify the structure within which the egg cell is normally fertilized.

• A

• B

• C

• D

Five different living organisms are represented below. Which statement about the organisms represented above is correct?

• All of the organisms are autotrophs.

• Only the flowering plant, green heron, and aquatic plant carry out photosynthesis.

• Only the frog and green heron can maintain homeostasis

• All of the organisms pass on traits through reproduction.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Research has shown that treadmill training increases the number of certain energy-releasing structures in the brain cells of rats.The cellular structures referred to in this study are most likely

• mitochondria

• nuclei

• vacuoles

• ribosomes

Tags

NGSS.HS-LS2-3