Animal Systems Exam Review

Rheumatic fever can follow throat infections caused by streptococcal bacteria. It is now very rare in most developed countries. Which of the following explains this reduced incidence?

• There are effective antibiotics available to treat streptococci

• Streptococci can only survive in a host organism

• People now have healthier diets and better immune systems

• Americans have an inherited immunity to the streptococci.

As microorganisms breakdown organic matter, they release nutrients into the environment that are essential for the growth of organisms that humans rely on for nutrients.

• True

• False

Tags

NGSS.MS-LS2-3

Species is a group of organisms that can successfully reproduce with each other.

• True

• False

Blood in humans functions at the same level of organization as

• a neuron cell

• the heart

• epithelial tissue

• the endocrine system

Tags

NGSS.MS-LS1-3

Which two systems interact to produce and deliver energy to the cells of the body?

• circulatory and endocrine

• digestive and circulatory

• integumentary and digestive

• circulatory and nervous

Tags

NGSS.MS-LS2-3

The respiratory and circulatory systems work together to provide body cells with a constant supply of O2 while removing CO2 waste products.

• True

• False

When cortisol levels are low, the pituitary gland secretes ACTH and when cortisol levels are high the pituitary stops ACTH secretion. Based on this information which of the following would most likely be the cause of elevated levels of cortisol.

• undersized adrenal glands

• an excess of ACTH

• an inactive pituitary gland

• an immune response to the excess level of cortisol

Tags

NGSS.HS-LS1-3

During the final stages of human gestation, receptors for the hormone oxytocin, increase on the smooth muscle cells of the uterus. This stimulates smooth muscle contractions of the uterus to push the baby through the birth canal so delivery can occur. This process involves the interaction of which organ systems.

• endocrine, muscular, and reproductive

• endocrine and muscular

• endocrine and reproductive

• endocrine, reproductive, and excretory

The respiratory and circulatory systems work together to make sure oxygen is absorbed and then transported throughout the body.

• True

• False

The female reproductive and endocrine systems work interactively for which main purpose?

• to maintain homeostasis by removing waste products from the body

• to control hormone levels to prepare the body for pregnancy

• to release neurotransmitters during times of stress

• to exchange gases to support cellular aerobic respiration

Tags

NGSS.MS-LS1-4