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
jeyben [28]
2 years ago
5

10. Blood returning to the mammalian heart in a pulmonary vein drains first into the

Biology
1 answer:
Archy [21]2 years ago
3 0

Answer: Option B.

Left atrium.

Explanation:

Pulmonary veins are veins that transmit oxygenated blood from the lungs to the heart. There are four largest pulmonary veins,two from the lungs that drain into the left atrium of the heart. The blood that is drained into the left atrium is pumped into the left ventricle through biscupid valve. The pulmonary vein function in respiration by receiving oxygenated blood in the alveoli and return it to left alveoli.

You might be interested in
What are the advantages of have DNA that is enclosed in a nucleus as opposed to DNA that is free in the cell?
-BARSIC- [3]

Explanation: As the DNA is present in the nucleus, there is compartmentalisation and the process becomes more efficient without the interaction of external bodies. The membrane of the nucleus protects the DNA from injuries.

<u><em>Pls mark Brainliest</em></u>

7 0
3 years ago
The process of molecules moving across a membrane from high to low concentration using specific membrane proteins, but without e
Korolek [52]

Answer:

The correct answer is- facilitated diffusion

Explanation:

In facilitated diffusion molecules(solutes) are moved from area having a high concentration of solute towards the area having low solute concentration through a semipermeable membrane with the help of specific proteins is called facilitated diffusion.  

As molecules move along the concentration gradients so no energy consumption is required in facilitated diffusion. Transport proteins like channel proteins are used to transport the molecules across the cell.  

The rate of transport is higher in facilitated diffusion than simple diffusion. Polar and charged molecules can be diffused by facilitated diffusion.

3 0
3 years ago
D. adhesion
tia_tia [17]

change in temperature and pH can change the shape of the enzyme and They can break down the reactants

Temperature. Higher temperatures typically result in faster rates of reaction, whether they are enzyme-catalyzed or not. The chemical bonds in the active site, however, can be impacted by temperature changes that are either too high or too low and make them less able to bind substrates. Extremely high temperatures (over 40 degrees Celsius may cause animal enzymes to denature, losing their form and activity)

pH can also affect enzyme function. The acidic or basic characteristics of active site amino acid residues are frequently crucial for catalysis. These residues can be impacted by pH changes, which can make it difficult for substrates to bind. Like with temperature, certain pH ranges (acidic or basic) can cause enzymes to denature. Enzymes function best within these pH ranges.

to learn more about temperature and pH

brainly.com/question/11464844

#SPJ4

7 0
2 years ago
The most dangerous property of cancer cells is that they:
zepelin [54]
Divide slowly is the answer
7 0
3 years ago
The gravitational force between an object and a planet is known as
just olya [345]

Gravity. The force of gravity on a person or object at the surface of a planet is known as weight.

3 0
3 years ago
Read 2 more answers
Other questions:
  • 1. Do the location of landforms (mountains, trenches, and volcanoes), earthquakes, and mineral deposits have anything in common?
    6·1 answer
  • What nutrient is a necessary component of the diet of pregnant women in order to prevent neural tube defects?\?
    9·1 answer
  • Which of the following conditions will maximize the amount of interest you earn?
    5·2 answers
  • The relationship that exists when an organism lives in or on another organism and feeds off that organism is called __________.
    10·1 answer
  • Which condition of volcanic magma would mostly like cause an explosive, destructive eruption?
    11·1 answer
  • The results of a scientific investigation either supports a claim or do not support a claim; they do not offer conclusive BLANK
    6·1 answer
  • What is the most in danger from the effects of overfishing?
    8·1 answer
  • Analysis of a blood sample from a fasting individual who had not eaten for 24 hours would be expected to reveal high levels of _
    15·1 answer
  • Using context clues, what does “ferrying its newly-gained energy with it “ mean when talking about convection?
    12·1 answer
  • Which one of the following human activities is the greatest threat to biodiversity?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!