January 2024 Living Environment Regents Questions 21-30 Question Preview (ID: 62949)

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Kittens in the same litter often have similar characteristics, such as fur texture and markings, because they

a) were fed milk from the same mother

b) developed in the same environment

c) inherited similar genes

d) were born at the same time

Damage to which structure would directly interfere with the nutritional needs of a developing embryo?

a) ovary

b) testes

c) lungs

d) placenta

The body’s inability to regulate blood pH could affect

a) enzymes that function within the circulatory system

b) red blood cells’ ability to fight infections

c) white blood cells’ ability to carry oxygen to the body

d) DNA that controls starch digestion in the circulatory system

Test anxiety and stress can trigger many responses in the human body. It can stimulate increased heart and respiratory rates and increased sweating. These physical responses to increased stress are examples of

a) competition

b) infections

c) gene manipulation

d) feedback mechanisms

A self-sustaining ecosystem in a glass tank must include

a) producers, decomposers, light, and water

b) herbivores, consumers, decomposers, and water

c) decomposers, heterotrophs, light, water, and carbon

d) heterotrophs, water, and carbon dioxide

This is an example of

a) maintaining homeostasis by responding to environmental change

b) controlling carbon dioxide release during daylight hours

c) decreasing evaporation for cooling during evening hours

d) failing to respond to environmental conditions

Two carnivores represented in this food web are

a) deer and mice

b) grasses and grasshoppers

c) deer and wolves

d) toads and snakes

Which structures from the algae would the sea slug need to take in to accomplish this?

a) nuclei

b) mitochondria

c) chloroplasts

d) ribosomes

Which three processes usually result in the greatest variety of possible gene combinations?

a) mutation, meiosis, and fertilization

b) differentiation, mitosis, and fertilization

c) cloning, meiosis, and fertilization

d) differentiation, mutation, and fertilization

All the genetic information necessary for the growth and development in a sexually reproducing animal is present in

a) egg cells, only

b) sperm cells, only

c) either sperm cells or egg cells

d) zygotes

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