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Karolina [17]
3 years ago
9

On your laboratory test, you are presented with a mollusc that has a closed circulatory system. You know immediately that it mus

t belong to the class ________.
Biology
1 answer:
Helga [31]3 years ago
4 0

Answer:

Cephalopoda

Explanation:

Cephalopods are the mollusk that has a closed circulatory system by simple circulation. The heart is located in the pericardic cavity and it is divided into two auricles and one ventricle. From the ventricle, the anterior aorta goes forward the head and the posterior aorta goes forward the visceral mass. The anterior aorta branches into many branchial arteries. All of them get united again in the head, in one cava vein from where the blood returns to the posterior extreme. This vein introduces into the pericardic cavity and brunches into two renal veins near the nephridium. Each branch penetrates into a nephridial sac and passes through the muscular branchial heart before it enters the gills.  Blood passes from the ventricle to the branchia through many vessels. In the branchia, the blood gets oxygenated again and returns to the auricle. The posterior aorta irrigates the gonads and the mantle, and from the posterior extreme of the body, blood goes forward to the anterior body region through two veins that join the renal veins that flow into gill hearts.      

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What is the meaning of photosynthesis ​
stepladder [879]

Answer:

Photosynthesis is the process by which plants and other things make food.It is an endothermic (takes in heat) process.Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy.

Explanation:(what happens in this process)

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8 0
3 years ago
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An individual with two different alleles for the same gene is<br> called
Nezavi [6.7K]

Answer:

heterogenous

Explanation:

homogenous gor same allels

4 0
3 years ago
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What is the role of mitochondria in eukaryotic plant cells?
Whitepunk [10]
Mitochondria are known as the power house of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down and creates energy rich molecules for the cell. The biochemical processes of the cell are known as cellular respiration. So this is the mi=ain function of the Mitochondria.


I Hope This Helped!

8 0
4 years ago
A trout population grew from 4 in 1992 to 16 in 1993 and then to 64 in 1994. If it continued to grow exponentially, approximatel
jeka57 [31]

Answer:

256

Explanation:

==>Trout population:

In 1992, we have 4

In 1993, we have 16

In 1994, we have 64

==>Required:

Population if trout in 1995

Thus, since we are told that the population growth is exponential, and looking at how the popuation increased from 1992 to 1994, we can see that the population increased yearly in the multiples of 4.

=> 4, 16, 64, ?

The next number in this series of exponential growth which represents the population in 1995 would be 256. I.e. (4)⁴ = 4*4*4*4 = 256

Population of trout in 1995 = 256

5 0
3 years ago
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Which zone would support the greatest variety of coral reef ecosystems?
alekssr [168]

Coral reefs are found in the photic zone of aquatic biome.

Explanation:

The ridges of ocean that are formed by invertebrates of marine system which lives in the superficial warm water are the Coral reefs. These are found in the ocean zone- photic. This is the uppermost surface area of ocean where abundance of sunlight is found and photosynthesis takes place.

The reefs of shallow water have an association with algae, which is photosynthetic. One of such reefs is the Reef of Great Barrier in the Australian northeast coast.

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4 years ago
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