1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Artemon [7]
2 years ago
8

During the t wave of the electrocardiogram, the ventricles are electrically ________ and functionally ________

Biology
1 answer:
KATRIN_1 [288]2 years ago
5 0

During the t wave of the electrocardiogram, the ventricles are electrically repolarizing and functionally relaxing.

The T Wave shows ventricular repolarization when the ventricles relax after contracting and depolarizing. The ST segment shows the period between ventricular depolarization and repolarization, which is the space (a flat or slightly upcurved line) between the S wave and the T wave.

Although absent or downward sloping ST segments may suggest myocardial ischemia, a raised ST segment is the typical sign of myocardial infarctions. The U wave, which denotes the repolarization of the Purkinje fibres, comes after the T wave.

Because it is a relatively little wave in relation to the others, it does not usually appear on an ECG.

To learn more about T wave click here

brainly.com/question/15733842

#SPJ4

You might be interested in
small group of 100 people decide to isolate themselves from the world and move to a small and remote deserted island. Out of thi
irina [24]

Answer:

Frequency of p = 0.684

Frequency of p = 0.316

Number of individuals with homozygous dominant (AA) = 47

Number of individuals with heterozygous (Aa)= 43

Number of individuals with homozygous recessive (aa) = 10

Explanation:

Out of 100 people, 10 have albino skin (aa)

So, the frequency of homozygous recessive individuals (q^{2}) is \frac{10}{100} = 0.1

Now, q will be

= \sqrt{q^{2} } = \sqrt{0.1} \\= 0.316

As per Hardy Weinberg's equation -

p + q = 1

Substituting the value of q in above equation, we get -

p + 0.316 = 1p = 1 -0.316\\p = 0.684

Now the frequency of homozygous dominant (AA) will be

p^{2} = 0.684^{2} \\= 0.467

Hence, out of 100 people 0.467 * 100 = 46.7 or 47 people are homozygous dominant (AA)

Like wise out of 100 people 0.1 * 100 = 10 people are homozygous recessive (aa)

As per As per Hardy Weinberg's equation-

p^{2} + q^{2} + 2pq = 1\\

Substituting the values in above equation, we get -

0.467 + 0.316 + 2pq = 1\\2pq = 1 -( 0.467+ 0.1)\\2pq = 0.433

So, out of 100 people 0.433 * 100 = 43.3 or 43 people are heterozygous (Aa)

7 0
3 years ago
What passes through a cell using passive transport?
Tanzania [10]
Passive transport is a movement ofbiochemicals and other atomic or molecularsubstances across cell membranes without need of energy input. Unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy. The rate of passive transport depends on thepermeability of the cell membrane, which, in turn, depends on the organization and characteristics of the membrane lipids andproteins. The four main kinds of passive transport are simple diffusion, facilitated diffusion, filtration and osmosis.
7 0
3 years ago
Identify some abiotic characteristics of the California chaparral ecosystem. (Site 1)
Phantasy [73]
By definition, a chaparral ecosystem is mostly located in the south of the United States wherein it mainly comprises the mountain ranges of Sierra Nevada. In addition to that, biotic characteristics of these chaparrals include having abiotic factos such as wet winters and dry summers that sometimes cause wildfires.
5 0
3 years ago
Read 2 more answers
Your roommate, who has not studied climate, says, "I thought the greenhouse effect was a bad thing. Isn't it what's causing glob
Masja [62]

Answer:

b) and c)

Explanation:

Greenhouse gases are gases found in the atmosphere that absorb infrared radiation and trap the sun’s heat, thereby producing an effect known as <em>greenhouse effect.</em> By this natural way, the earth is able to be kept warm at an optimal temperature, to make it habitable for humans and other organisms. These gases referred to as <em>greenhouse gases</em> include, carbon dioxide, methane, water vapour and other trace gases found in the atmosphere.  Greenhouse gases could be likened to the glass in a greenhouse that helps in trapping heat to keep the greenhouse warm at optimal temperature necessary for plant growth and development.

Without this natural greenhouse effect caused by greenhouse gases, life on earth would be almost impossible as the earth would almost be covered with ice below 0 degrees Fahrenheit.

The increased level of greenhouse gases we now find in the earth’s atmosphere is responsible for the additional warming of the earth’s surface, causing an enhanced greenhouse effect which results in global warming.

Statement a) cannot be used as an explanation because it is false. Greenhouse effect makes the earth habitable.

Statement d) cannot be used as an explanation because carbon dioxide is not the only greenhouse gas that matters. Water vapour, CFC and methane also have impacts.

<em>Statement b) and c) are the best statements to use in explaining the true nature of greenhouse effect. </em>

7 0
3 years ago
At which stage of respiration does the co2 release take place?
LenKa [72]
<span>The process by which most living cells generate energy during the process of aerobic respiration. CO2 release takes place at the stage of krebs cycle.
</span>

So according to above explanation

Krebs cycle , is the correct answer

7 0
3 years ago
Other questions:
  • How do you like your eggs fried or fertilized
    6·1 answer
  • Help!!!!. I really need this!!!​
    15·1 answer
  • Condors are related to vultures and feed on carrion, or dead animals. A condor’s role in the food web is as a _____.
    15·2 answers
  • Is ozone inorganic or organic
    11·2 answers
  • Which shows the levels of organizational hierarchy listed from least complex to most complex?
    15·2 answers
  • Which macromolecules are often made of three fatty acid‘s bond to a glycerol molecule.
    5·2 answers
  • There are five different types of nucleotide bases found in living things.
    13·1 answer
  • plants produce carbohydrates for themselves through the process of photosynthesis. Which cycle is carried out when these carbohy
    14·2 answers
  • What stores urine in teh body
    5·1 answer
  • (HELP ASAP I'LL GIVE YOU BRAINLIEST)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!