Rhonda Runsalot is a 20 year old woman. She is running at VO2max. Her heart rate is 200 b/min. Her stroke volume is 100 ml blood/b. Her arterial oxygen content is 20 ml O2/100 ml blood. Her venous oxygen content is 6 ml O2/100 ml blood. What is her cardiac output?

Answer:

Cardiac output = 20 L/min

Explanation:

The cardiac output of a person refers to the volume of blood the heart pumps in a minute. The normal range for cardiac output is about 4 to 8 L/min. However, this can vary depending on the metabolic needs of the individual at any instant of time, for example, it is higher when exercising than  when resting.

Cardiac output is calculated from the product of the stroke volume in liters/min and the heart rate in beats/min

Cardiac output  = stroke volume * heart rate

For the individual who is running; stroke volume = 100 mL/beat or 0.1 L/beat

heart rate = 200 beats/min

Cardiac output =0.1 L/beat * 200 beats/min

Cardiac output = 20 L/min

Cell Type Dichotomous Key 1a cell has a nucleus and organelles → go to # 2 1b cell has no nucleus or organelles → bacterial cell 2a cell has a cell wall → go to # 3 2b cell has no cell wall → animal cell 3a cell has chloroplasts → plant cell 3b cell has no chloroplasts → fungal cell What type of cell is A? A) animal B) bacterial C) fungal D) plant​

Can anyone please help with these two questions? Thanks!
Which human activity has the most impact on the quality of water of a stream?
A: Increasing the chemical we throw in the water.
B: Releasing laundry detergent into our streams.
C: Not using fertilizers near the stream
D: Water that has been heated and cooled.

How does the industrial and agricultural activities affect our watersheds?
A: By allowing the water cycle to evaporate the water.
B: By allowing pollutants to seep through our soil to our groundwater.
C: By burning fossil fuels
D: All of the above.

Clarence made a diagram to compare codominance and incomplete dominance. Which label belongs in the area marked Y? Neither allele is dominant. An intermediate phenotype is expressed in offspring. One allele is dominant over the other. Both dominant alleles are fully expressed in offspring.

Select the three macronutrients found in fertilizers.
1.phosphorus
2.hydrogen
3.nitrogen
4.zinc
5.potassium
6.carbon

stage of photosynthesis that uses energy from the sun

A. Autotroph
B.potential energy
C. Stroma
D. Calvin cycle
E. Heterotroph
F. Light reactions
G. Chemical energy
H. Chlorophyll

Monstel




which best describes the trophic level of an organism ​

Which statement describes an interaction between the biosphere and the atmosphere that is related to
photosynthesis?
During photosynthesis, plant roots take in water from soil.
During photosynthesis, plants take in carbon dioxide from the air.
Through photosynthesis, energy stored in plants is released into the air.
Through photosynthesis, energy stored in plants is transferred to humans who eat them.

What cell performs main function of nervous system

Hurry! Will mark brianlest if correct, worth 11 points! Which best explains the zygote?
It has a diploid number of chromosomes
It has a haploid number of chromosomes.
It has all the chromosomes of the mother.
It has all the chromosomes of the father.

Students conducted an investigation about processes of the water cycle. They used four bowls containing water and salt to represent the ocean and
collected data in the table below. Based on this data, where did most evaporation occur
Location
Amount of Water (in mL)
10:00 AM 12:00 PM
8:00 A.M.
2:00 PM
Sunny window
50
45
41
36
50
45
43
39
Outside in
shade
Outside in
direct sunlight
In a closet with
no light
50
41
33
27
50
48
46
45 no

the greatest threat to life and property during a hurricane ​

Protist characteristics

Which is the most sustainable ?

Describe any three factors that could have an impact on the rate of photosynthesis. In other words, what types of conditions placed on a plant would speed up or slow down photosynthesis?

A codon can be found on which?
mRNA
ORNA
ORNA

Will give brainlest and heart if correct

Which nitrogen bases are complementary to each other

An approximation of a number, based on reasonable assumptions, is called

How is sediment formed?
a. By extreme temperature and pressure
b. By the cooling of lava
c. By the heating of lava
d. By weathering and erosion

what is a reservoir for carbon and nitrogen but not phosphorus?

Some preganglionic neuron synapses with the cell body of the
postganglionic neuron in the
ganglion
These ganglia are linked together to form the
Name some of the tissue/organs are innervated by these neurons:
Other preganglionic neurons pass through the sympathetic trunk and
synapse with the postganglionic neuron anterior to the spinal cord in
ganglia.
The axons of these preganglionic neurons are called
nerves.
Name some of the tissue/organs are innervated by these neurons:
The sympathetic nervous system also send neurons directly from the
spinal cord to synapse onto the
gland.
This would cause the release of
into the
blood.

The process of antibody-dependent cellular cytotoxicity (ADCC) allows ______ cells to bind to antibody-coated host cells that may have viral proteins in their plasma membrane in order to kill them, inducing apoptosis and limiting viral spread.

By the time a cell has reached metaphase, all the following have occurred except...

What is formed when two substances are in the same container, but no
chemical reaction occurs?
A. An atom
B. A mixture
C. A compound
O D. A molecule

Which statement best describes the relationship between prophase and telophase?


The spindle fibers bring the chromosomes together in prophase then apart in telophase.

The spindle fibers pull the chromosomes apart in prophase then bring them together in telophase.

The nuclear membrane forms in prophase and breaks down in telophase.

The nuclear membrane forms in telophase and breaks down in prophase.
There are other ppl who have asked this question but the answers seem wrong because in my notes it says that the fourth one is correct

Describe the growth in each phase

Which of the following would NOT stimulate/force you to
breathe?

A.increased plasma acidity

B. reduced plasma oxygen (O2)

C.increased plasma carbon dioxide (CO2)

D.increased plasma oxygen (O2)

help help help help plssss!!!

predict whether you would expect weather forecasts to be more accurate for the state of Kansas or a remote Caribbean island, based on what you know about weather observation systems. Explain.​

24)
Large molecules have very specific functions, specifically in the body. This particular molecule
helps to maintain glucose levels in the blood and is released from the pancreas. What is this
organic molecule?
A)
starch
B)
hemoglobin
C)
steroids
D)
insulin

Glycogen is the structural component of plant cell walls True or False​