Category Archives: Biology

determine the phenotypes expected in the progeny of a cross between an orange female and a black male.

Male house cats are either black or orange; females are black, orange, or calico. If these coat-color phenotypes are governed by a sex-linked gene, how can these observations be explained?

a.Using appropriate symbols, determine the phenotypes expected in the progeny of a cross between an orange female and a black male.

b.Half the females produced by a certain kind of mating are calico, and half are black; half the males are orange, and half are black. What colors are the parental males and females in this kind of mating?

c.Another kind of mating produces progeny in the following proportions: one-fourth orange males, 1/4 orange females, 1/4 black males, and 1/4 Calico females. What colors are the parental males and females in this kind of mating?

Fill in the blank with the appropriate term

Fill in the blank with the appropriate term:

 

__________________________ a. Movement of a body part away from the midline

__________________________ b. Movement of the sole of the foot laterally

__________________________ c. Movement of a bone around its own longitudinal axis

__________________________ d. Movement of a bone toward the midline of the body

__________________________ e. A decrease in the angle between articulating bones

__________________________ f. Continuation of extension beyond anatomical position

__________________________ g. Rotation of the forearm and hand medially so that the palm faces posteriorly

__________________________ h. Movement of the foot so that the toes are pulled up toward the head

__________________________ i. Anterior movement of a body part

__________________________ j. Movement of the distal end of a body part in a circle

Match each of the following terms with its description/function

Match each of the following terms with its description/function:

 

a. _____ transverse tubule

b. _____ sarcoplasmic reticulum

c. _____ epimysium

d. _____ thin filament

e. _____ myofibril

f. _____ triad

g. _____ endomysium

h. _____ motor end plate

i. _____ sarcomere

j. _____ perimysium

k. _____ thick filament

l. _____ fascicle

1. connective tissue wrapping around a muscle fiber

2. organelle packed with myofilaments

3. transverse tubule and its flanking terminal cisternae

4. invagination of the sarcolemma

5. connective tissue wrapping around fascicle

6. the region of sarcolemma across from the axon terminal

at the neuromuscular junction

7. consists of actin, troponin, and tropomyosin

8. stores calcium

9. consists of myosin

10. a bundle of muscle fibers

11. connective tissue wrapping around a muscle

12. functional unit….

Match each of the following muscles with its correct description

Match each of the following muscles with its correct description:

 

_____ a. internal intercostals

_____ b. rectus abdominis

_____ c. quadratus lumborum

_____ d. semispinalis

_____ e. trapezius

_____ f. subclavius

_____ g. erector spinae

_____ h. external intercostals

_____ i. diaphragm

1. dome-shaped muscle that functions in inspiration

2. eleven pairs of muscles that elevate the rib cage

3. tripartite muscle that runs from the sacrum to the skull

4. flexes the vertebral column

5. large, triangular muscle that extends head

6. eleven pairs of muscles that depress the rib cage

7. square-shaped muscle in the lumbar region

8. tripartite muscle that runs from the cervical or thoracic

vertebrae to the skull

9. located below the clavicle

Explain the function of each of the organs involved in excretion.

1. Explain the function of each of the organs involved in excretion.

2. Relating Concepts Explain why a high concentration of protein in the urine may indicate damaged kidneys.

3. Recognizing Relationships Why would there be a decrease in urine output if a person had lost a large amount of blood?

4. Analyzing Concepts Given the definition of excretion, why do you think the large intestine is not classified as a major excretory organ?

5. For each set of terms, choose the one that does not belong, and explain why it does not belong.

a. carbohydrate, protein, lipid, and mineral

b. pharynx, epiglottis, bolus, and esophagus

c. cardiac sphincter, gastric pits, renal medulla, and pyloric sphincter

d. absorption, filtration, secretion, and reabsorption

Why is it important that the large intestine reabsorb water and not eliminate it?

1. Analyzing Concepts Why is it important that the large intestine reabsorb water and not

eliminate it?

2. Predicting Patterns The loop of Henle functions to conserve water by aiding in reabsorption. Its

length varies among mammal species. Would you expect the loop of Henle of an animal such as the

beaver, which lives in a watery environment, to be longer or shorter than that found in humans? Explain your answer.

3. Recognizing Relationships Look at the pictures of the teeth of different animals. What can you tell about the human diet by comparing the teeth of humans with those of other animals shown here?

What do you think might happen if more than one sperm were able to penetrate the cell membrane of an egg?

1. Predicting Results What do you think might happen if more than one sperm were able to penetrate the cell membrane of an egg?

2. Evaluating Differences A human female produces, on average, only one mature egg every 28 days. In contrast, a female salmon lays 50 million eggs at each spawning. Hypothesize why there is such a great difference in egg production between the two species.

3. Recognizing Relationships Women who consume tobacco, alcoholic beverages, or other drugs or harmful substances during pregnancy are at high risk of giving birth to infants who are addicted to drugs, have severe birth defects, or tend to develop learning disabilities. Explain.

How do these programs differ from school programs? Are

Survey your local community for agencies that provide services to students with behavioral disorders. These agencies may deal with students who act out or are withdrawn, and may focus on drug abuse or suicide prevention. Local school districts or mental health organizations may be able to provide the names of some appropriate agencies. Contact two agencies, and find out what types of services they offer. How do these programs differ from school programs? Are services offered to parents and family members? In your view, how useful are these programs?

Discuss any questions you have about the feasibility and appropriateness of the placement.

Watch a film about individuals who have unusual or disordered behavior. If you can’t think of any recent examples, do a Google search to locate older films such as To Sir with Love, Rain Man, or Blackboard Jungle. Describe the behaviors portrayed in terms that would be meaningful in planning for the individual’s educational needs. Explain how a general education teacher could accommodate a school-aged individual with similar needs in his or her classroom. What type(s) of special support or services might the student need? What might the teacher need? Discuss any questions you have about the feasibility and appropriateness of the placement.

what is done to convert the baby’s weight to kilograms?

18. A newborn baby weighs 7 lb 8 oz (seven pounds and eight ounces). If 1 lb = 0.454 kg, what is done to convert the baby’s weight to kilograms?

 

A. Multiply 7.8 by 0.454

B. Divide 7.8 by 0.454

C. Divide 7.5 by 0.454

D. Multiply 7.5 by 0.454

19. By Internet search, you discover that 1 in. (1″) is the same as 2.54 cm. How would you convert a man’s waist girth (circumference) from 40″ to centimetres?

A. Multiply 40 by 2.54

B. Divide 40 by 2.54

C. Divide 2.54 by 40

D. Multiply 40.1 by 2.54