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
sergey [27]
4 years ago
15

Which statement correctly describes the circulatory system?

Biology
1 answer:
dimaraw [331]4 years ago
6 0

it’s A and ur welcome

You might be interested in
The heart and the lungs are surrounded and protected by the.
stepladder [879]
The rib cage is known for enclosing and protecting the thoracic cavity. In the thoracic cavity, the heart and lungs are present. Hence, the rib cage protects the heart.
4 0
3 years ago
type of evolution by which organisms evolve differences when they are isolated in different environments
polet [3.4K]
Natural selection is a type of evolution that allows organisms to adapt into the environment they're in for survival. 
7 0
4 years ago
6. Select the scenario in which a mutation may become fixed in a population.
noname [10]

Answer:

A mutation occurs in a population of brown toads, causing green stripes that allow for better camouflaging in its habitat.

Explanation:

8 0
3 years ago
Which substances are contained in saliThe first line of defense involves which structure(s)?va and tears to break down pathogens
choli [55]

Answer:

Lactoferrin, lysozyme and peroxidase.

Explanation:

Lactoferrin, lysozyme and peroxidase are the substances which are present in the saliva and tears and work as a first line of defense in the body against harmful microorganisms in humans and animals. Lactoferrin helps to protect the body fromagainst DNA or RNA based viruses such as rotavirus and HIV. Lysozyme is a type of enzyme which prevents the growth of bacteria by breaking down the cell wall of bacteria.

4 0
3 years ago
Does a transverse wave need to travel through a medium?
Keith_Richards [23]
Yes, a transverse wave needs to travel through a medium, an electromagnetic wave does not.
8 0
3 years ago
Other questions:
  • The first step of an action potential, when the membrane potential of a neuron shifts from negative to positive due to inward mo
    7·1 answer
  • Name three adaptations of reptiles that enable them to live on land.
    6·2 answers
  • A prepared slide of an organism shows red cells after acid-fast staining. Therefore it can be concluded that the cells
    13·2 answers
  • How are the number of protons represented on the periodic table
    13·2 answers
  • The presence of 10 copies of the c subunit of the F0 complex of yeast ATP synthase allows for the synthesis of 1 ATP for every _
    9·1 answer
  • What supports the external ear?
    9·1 answer
  • Which of the following is a benefit of globalization?
    11·2 answers
  • How does the body respond to medicine? Check
    8·1 answer
  • Can someone help me please ahhhh omggggg please please
    13·1 answer
  • How could you describe the size of an atom?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!