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yellowalligator287Lv1

28 Sep 2019

Please answer the below questions ( I need answers for all the below questions). Thank you

True or False

Write true if the statement is true or false if the statement is false.

___ The heart consists mainly of muscle.

_ Blood pressure is highest in veins.

_ Atherosclerosis is the buildup of plaque inside arteries.

_ Platelets are blood cells that fight infections.

_ Peripheral gas exchange takes place in the lungs.

_ Food travels from the mouth to the stomach because of gravity.

_ Most absorption of nutrients takes place in the stomach.

_ For good health, you should never eat lipids.

_ The kidneys are the main organs of the excretory system.

_ Nephrons carry urine out of the body.

Fill in the Blanks

Fill in the blank with the term that best completes the sentence.

____ is blood pressure that is higher than normal.

The liquid part of blood is referred to as .

Blood type is determined by the presence or absence of on blood cells.

Tiny sacs in the lungs where gas exchange takes place are called .

The disease in which air passages of the lungs periodically become too narrow is .

A wave of involuntary muscle contractions that moves food through the digestive system is called .

The physical breakdown of chunks of food into smaller pieces is referred to as _ digestion.

The small intestine is lined with tiny finger-like projections named .

Solid waste that leaves the large intestine is known as .

____ are organic compounds needed in small amounts for the body to function properly.

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Nestor RutherfordLv2

28 Sep 2019

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Related questions

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Where is growth hormone produced?

		Pituitary Gland
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Which neurotransmitter is linked to OCD and depression?

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Which part of the brain is linked to mystical experiences?

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Which coordinates and balances the action of muscles?

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	What is the function of amylase?

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Where does most digestion occur?

		large intestine
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Which vitamin in high dosages reduces pain?

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Which vitamin increases fertility?

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Which is not fat soluble?

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Question 11

Which is not a component of the blood?

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Question 12

Protein digestion begins in the small intestine.

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What happens an instant before inhalation?

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Which hormone reduces testosterone levels?

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Question 18

Which vessel(s) is the most oxygenated?

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Question 19

You can make a person you know appear by stimulating a part of the brain with electricity.

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Einstein had a thicker corpus callosum than a normal person resulting in better communication between both sides of his brain.

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sangriatermite423

1. Which of the following is the correct sequence of bloodflow?

a. heart --> atery --> arteriole --> capillary -->vein --> venule --> heart

b. heart --> vein --> venule --> capillary -->arteriole --> artery --> heart

c. heart --> artery --> arteriole --> capillary -->venule --> vein --> heart

d. heart --> artery --> venule --> capillary -->arteriole --> vein --> heart

e. heart--> artery --> capillary --> arteriole -->venule --> vein --> heart

2. What are the functions of the elastic fibers that are foundin the walls of ateries? (there may be more than one answer)

Select one or more:

a. they allow the artery to stretch and then recoil back to itsoriginal shape as blood is forcegully pumped from the heart intothe arteries

b. they allow arteries to lengthen as the volume of blood in thearteries increase

c. they help maintain a steady blood pressure during thedifferent phases of heart contraction

d. they smooth out the walls of the arteries to preventturbulent blood flow

3. Which of the following are functions of the lymphatic system?(there may be more than one answer)

Select one or more:

a. help fight infections and cancer

b. allows excess interstitial fluid (fluid found between thecells in your tissues) to get dumped back into your blood

c. brings large molecules from fat digestion into thebloodstream so that they can be processed and stored

d. all of the above are functions of the lymphatic system

4. Which of the following blood vessels bring newly oxygenatedblood from the blood vessels in the lungs back to the heart so thatthe heart can pump it to the rest of the body?

Select one:

a. aorta

b. inferior vena cava

c. pulmonary vein

d. pulmonary artery

5. Which of the following mechanisms help blood fight gravity sothat, for instance, it can return from blood vessels in your feetback into your heart? (there may be more than one answer)

Select one or more:

a. breathing allows the pressure in your chest to decrease andallow blood to flow up towards your heart

b. as you walk, the skeletal muscles in your legs contract andsqueeze the veins; since veins have valves, blood flows up anddoesn't backflow back down

c. the force of blood flowing out of the heart and into thearteries pushes all of the blood along, causing blood to return tothe heart

d. precapillary sphincters open to allow blood to flow backtowards the heart

6. The tricuspid and bicuspid/mitral valves prevent backflow ofblood from the atria into the ventricles.

Select one:

True

False

7. The following sequence represents the correct order of bloodflow through the heart:

inferior and superior vena cava --> right atrium --> rightventricle --> pulmonary artery --> lungs --> pulmonaryvein --> left atrium --> left ventricle --> aorta

Select one:

True

False

8. Capillaries are as wide as one red blood cell.

Select one:

True

False

9. The purpose of the coronary arteries is to bring oxygenatedblood to the walls of the heart so that the muscles in the heartwalls can contract.

Select one:

True

False

10. Vasodilation refers to the narrowing of blood vessels.

Select one:

True

False

ultramarinealligator67

1. CAN BE MORE THAN ONE The arthropods are the most successfulgroup of animals; several key features explain their success. Checkall of the features that one would use to classify members intothis phylum.

growth takes place throughecdysis

a rigid exoskeleton made ofchitin

closed circulatory systems

jointed appendages

a rigid exoskeleton made ofkeratin

segments specialized intofunctional tagmata
2. An entomologist observed a locust sitting on a branch pumpingits abdomen like an accordion. What is the insect doing?

Stretching out its pedipalps

Assisting gas exchange in thetracheal system

Speeding the flow of blood throughits veins and arteries

Clearing its spinnerets

3.Dibenzoylhydrazines are a category of molecules that have beenused as insecticides. They work by blocking ecdysteroid receptors.How does this kill an insect?

The chitinous exoskeleton isdissolved.

The insect can no longer excretenitrogenous wastes.

The insect can no longer coordinateits movements.

The insect cannot molt.

4. The grasshopper equivalent of an ear is found

on the side of its head.

on the abdomen.

Grasshoppers do not have afunctional equivalent to ears.

directly behind the antennae.

5. A snail in your garden and an oyster are quite different inappearance. What would be evidence to justify grouping themtogether?

Both have a mantle capable ofsecreting calcium carbonate.

Both use siphons to obtainoxygen.

Both have sensory antenna.

Both use a radula for feeding.

6.Barnacles are sessile filter feeders but unlike bivalves theyhave internal fertilization. How do they solve this problem?

They are only capable of asexualreproduction.

The filter sperm from the watercolumn.

They are hemaphrodites withespecially long penises.

They get fertilized during free living larval stages.

7. Bivalves lack a radula. How dothey eat?

The gills filter water and extractorganic matter.

The mantle traps and moves sedimentto the stomach for digestion.

Inhalent siphons suck water intothe mouth.

Most bivalves have photosynthetic endosymbionts in the visceralmass.

8.If a marine biology student discovered a dorsoventrallyflattened marine worm, what would be an effective way to determineif the specimen was a flatworm or a ribbon worm?

Examine the morphology of theexcretory system.

Look for a head at the anteriorend.

Determine the number of embryonicmembranes.

Look for an anus.

9.Inside its beak an octopus has a rasping tongue that is usedto tear apart food, which gastropod structure is this analogousto?

Nephridium

Radula

Shell

Mantle

10.Pinworm is spread by contact, and the worms cause severeitching around the anus. Why is it so common?

Insect vectors spread thedisease.

The intense itch produces anintense desire to scratch.