June 2018 Living Environment Regents Questions 11-20 Question Preview (ID: 56832)

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Which organisms would most appropriately complete the chart when written in the circle at X?

a) producers

b) herbivores

c) carnivores

d) decomposers

Which statement best explains the events represented in this diagram?

a) A gene mutation caused the cells to become muscle cells.

b) The growth resulted from the introduction of a vaccine.

c) A gene mutation caused abnormal mitotic cell division.

d) The growth resulted from uncontrolled meiotic cell division.

This technique is best identified as

a) gene alteration

b) selective breeding

c) replication

d) cloning

An example of competition between members of two different species is

a) mold growing on a dead tree that has fallen in the forest

b) purple loosestrife plants growing in the same wet areas as cattail plants

c) a coyote feeding on the remains of a deer that died of starvation

d) two male turkeys displaying mating behaviors to attract a female turkey

Which statement best explains why different body cells of the same individual look and function differently?

a) Each cell contains different genes.

b) Different genes are activated in different kinds of cells.

c) Cells are able to change to adapt to their surroundings.

d) Half of the genes in the cells came from the mother and half from the father.

Identify the structure within which the egg cell is normally fertilized.

a) A

b) B

c) C

d) D

The ameba, a single-celled organism, reproduces asexually. Variations in an ameba would most commonly occur through

a) differentiation during development

b) the fusion of gametes

c) random mutations

d) recombination during fertilization

The development of organs and tissues from a zygote includes

a) mitosis and differentiation

b) mitosis and gamete production

c) meiosis and gamete production

d) meiosis and fertilization

This occurrence illustrates that

a) farmers should never clear land to grow crops as it always creates problems

b) once an ecosystem has been altered, it can not be restored to normal

c) the farmers deliberately altered the equilibrium of the cities in the Northeast

d) when humans alter ecosystems, serious consequences may result

This threat is the result of a human activity that has

a) introduced a foreign species by accident

b) stabilized a forest ecosystem through technology

c) weakened an ecosystem through pollution

d) weakened a species by direct harvesting

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