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Sati [7]
3 years ago
8

Which of the following is the correct sequence of blood flow in birds and mammals? a. pulmonary vein → left atrium → left ventri

cle → pulmonary circuit b. vena cava → right atrium → right ventricle → pulmonary vein c. vena cava → right atrium → right ventricle → pulmonary artery d. left ventricle → aorta → lungs → systemic circulation
Biology
1 answer:
ladessa [460]3 years ago
7 0
The correct answer is C. The right side of the heart delivers deoxygenated blood (from vena cava) to the lungs (via pulmonary artery)
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Which of the following is NOT a type of Devonian arthropod?
mamaluj [8]

Answer:

D) None of the above

Explanation:

Arthropods are characterized by the possession of an exoskeleton and a segmented body. This group includes insects, arachnids, myriapods (centipedes and millipeds), and crustaceans.

The Devonian period, belonging to the Paleozoic Era, occurred from around 415 million to 350 million years ago. During this era, arthropods such as centipedes, millipedes, and flightless insects were predominant and diversified throughout this period.

Therefore, as all of these arthropods were present in the Devonian period, the correct answer is <u>d) None of the above</u>.

4 0
3 years ago
Please help me in my homework (keep it simple,i couldnt find Science ;-; I am sorry) What is environment? What are three main as
meriva

Answer: It is then the space in which the life of living beings and the interaction between them and other things takes place. It is made up of living organisms, abiotic elements and artificial elements. It includes physical, chemical and biological components of the organisms and elements that form it. It is important because it is the place of habitat of humanity, it provides natural elements such as water and food, it provides fuels and raw materials that serve to manufacture artificial things and it contributes to the sustainability of life on the planet.

Explanation:

The environment is a system made up of living organisms (such as animal and plants), abiotic elements (lifeless, such as stones or water) and artificial elements (created by man, such as buildings) that are related to each other and can be modified by human action. <u>It is then the space in which the life of living beings and the interaction between them takes place</u>.

It includes physical, chemical and biological components of the organisms and elements that form it. That is, how is its composition and its function in the environment.

The importance of the environment lies in:

  • It is the place of habitat of humanity, so it influences the life of human beings and future generations. It is the space where life develops at this time with all living beings and their natural components.
  • It provides natural elements such as water and food since it offers all its natural resources needed by the human being.
  • It provides fuels and raw materials that serve to manufacture the artificial things we use daily, to build houses, have light, transport, among many other benefits to exist.
  • In the environment we find a great biological diversity of plants and animals that help maintain the ecological balance of the earth. This contributes directly to the sustainability of life on the planet. Each organism has a unique role to play.

Therefore, all societies must guarantee their care for their existence and make rational use of all their resources.

7 0
2 years ago
An organism that creates its own food is called:
patriot [66]

Answer:

a

Explanation:

8 0
2 years ago
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Watch the animation, DNA Replication. After DNA replication, how many double-stranded DNA molecules exist?
dsp73

Answer:

The DNA is a double helix or made up of two strands. The strands are separated during replication, each serving as a template to produce a complementary strand of each of the separated single strands. Therefore after replication, two double stranded DNA molecules will be present.

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Which of the following is a possible litter for two heterozygous black mice?
-Dominant- [34]

Answer:

all of the above

Explanation:

8 0
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