Explain mechanism of transportation in mollusca

Answers

Answer 1

Answer:

The mollusk circulatory system uses a heart to pump blood through the organism, and the respiratory system of aquatic mollusks centers around their gills. The heart pumps blood through blood vessels that lead from the gills into body cavities called hemocoels.


Related Questions

The theory that complex cells evolved after primitive cells engulfed bacterial cells
that continued functioning is known as endosymbiosis. Below the diagram
represents a theory about cells. The origin of which type of cell does not best fit this
diagram?

Answers

Cell is the smallest unit of an organism that can have a separate existence.

What is a cell?

This question is incomplete but I will try to help you as much as possible. The term cell is the smallest unit of an organism that can have a separate existence.

We know that all cells come from pre existing cells and complex multi-cellular organisms evolved from simple unicellular organisms. This forms the basis of the cell theory.

Learn more about cells: https://brainly.com/question/5763151

Answer:

your supposed to put the diagram....
The answer would be Prokaryotic Cells.

What is the process by which organisms become better suited to their environment to survive and reproduce?.

Answers

The answer would be natural selection.

Are there any parts of the human body that get oxygen directly from the air and not from the blood?​

Answers

Answer:

The cornea in the eye.

Explanation:

The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.  The cornea is a transparent tissue, allowing for light to pass through. If it had blood vessels there, that would be an issue - for that tissue! And the cornea receives its oxygen directly from the air. When contact lenses were first used, people were instructed to take out their contacts when they go to sleep - because wearing them at night would reduce the oxygen intake to the eyes. Then they began manufacturing contact lenses that allowed for the lenses to “breathe” permitting people to wear them day and night.

how to calculate the concentration of starch in a solution

Answers

Use a measuring cup maybe?

Answer:

From the linear regression analysis of y=4.8811x+0.1453 we calculate the starch concentration by rearranging the formula to x=(y- 0.1453)/4.8811.

Explanation:

The starch concentration of the sample is 0.159 mg/mL. The dilution factor was 1:10 making it a concentration of 1.59 mg/mL. For each cuvette concentration calculation, multiply the concentration of the diluted starch solution in the Erlenmeyer flask by the volume of the diluted starch solution you added to the cuvette. Then, divide by the total volume of liquid you placed in the cuvette, which is 5 mL.

I hope this helps you! :) I'd appreciate brainliest. but if there's a better answer, vote for that one.

Which class of neurons function in integration of information?.

Answers

Answer:

The interneurons is correct answer.

Do neurons belong to the central nervous system or the peripheral nervous system

Answers

Answer:

the nervous system

Which of the following events can follow an earthquake?
A
tsunami
B.
tornadoes
С
blizzards
D
hurricanes
Continue

Answers

i believe it is tsunami
It’s A, tsunamis can form after an earthquake due to the aftershock/landslides/earth movements.

The basement membrane is found between __________ and __________.

Answers

     The basement membrane is found between the epithelium and connective tissue.

     The image attached is a diagram from www.lamission.edu.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

Need help please please please please please

Answers

Picture doesn’t show
anything

Cellular respiration uses one molecule of glucose to produce.

Answers

Answer:

36 ATP

Explanation:

What is the difference between the nucleotide sequences of the purple flower allele compared to the white flower allele

Answers

Answer:

A single nucleotide polymorphism (change) exists between the two sequences.

Explanation:

Hope this helps! :)

You come upon a rattlesnake while hiking. which action does your body take first to protect you.

Answers

Explanation:

the nerves send information about the snake to your brain

------------------------------------------------ prevents a cell from becoming too large and also helps to heal injuries

Answers

Answer:

Mitosis, I believe.

Explanation:

I hope this is right. If it is not, I am very sorry.

how do dichotomous keys use external structures to identify organisms

Answers

Answer: Dichotomous keys are very useful because they allow non-expert users to identify organisms by directing them to look at the known, important organisms.

Polyps are distinct organisms that live in communities that make up coral. Please select the best answer from the choices provided T F.

Answers

Answer:True

Explanation:

Answer:

The answer is true

Explanation:

I just took the test and I picked true and it was right .

Neuronal cells that are short-lived and are frequently replaced are retinal cells. nociceptors. Pacinian corpuscles. gustatory receptors. olfactory sensory neurons.

Answers

The neuronal cells that are short-lived and are frequently replaced are called the olfactory sensory receptors.

Neuronal cell regeneration

Neuronal cells, which is also called neurons, are the cells of the nervous system that aid in the transmission of electrical information from one cell to another.

Olfactory sensory neurons are bipolar nerves that are activated when airborne molecules in inspired air bind to olfactory receptors expressed on their cilia.

They are usually short-lived and are regenerated because they are constantly exposed to environmental agents.

Therefore, neuronal cells that are short-lived and are frequently replaced are called the olfactory sensory receptors.

Learn more neurons here:

https://brainly.com/question/13061744

The individual components of a macromolecule are referred to as monomers.

Answers

Most macromolecules are made from single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts.

which process do plants and animals share in common​

Answers

Answer:

When we look at reproduction too they are similar. They both produce gametes that fuse to form a zygote. They both have DNA that replicates to produce copies of itself.

Chemical weathering happens fastest under which conditions?

Answers

Explanation:

I hope it helps and have a nice day

Define apoptosis in biology

Answers

Answer:

Apoptosis is a form of programmed cell death that occurs in multicellular organisms.

Explanation:

Answer:

Apoptosis is the process of programmed cell death

Explanation:

Biochemical events lead to characteristic cell changes and death. These changes include blebbing, cell shrinkage, nuclear fragmentation, chromatin condensation, D.N.A. fragmentation, and mRNA decay.  For example, those between the fingers of a developing hand. In adults, apoptosis is used to rid the body of cells that have been damaged beyond repair. Apoptosis also plays a role in preventing cancer. If apoptosis is for some reason prevented, it can lead to uncontrolled cell division and the subsequent development of a tumor.

During plant cell cytokinesis, what helps to form the barrier that separates the two daughter cells?

Answers

Answer:
cell plate
Explanation:

cytokenesis is when one cell becomes 2

nih Britannica

Do you think a abiotic or biotic factor can be both positive and negative in the same environment?
Explain.

Answers

Answer: biotic and abiotic factors are the environmental conditions that the organisms have to face to live in a specific environment

Explanation:

What type of ion channels in the membrane of neurons open or close in response to a neurotransmitter binding to its receptor

Answers

An ion channel in the membrane of neurons which open or close in response to a neurotransmitter that binds to its receptor is called:  ligand-gated channel.

What is an action potential?

An action potential can be defined as a sudden, fast change in electrical (voltage) potential with respect to the transmission of an impulse to a receptor, across a cellular membrane such as:

A nerve cellA muscle cell

What is a neuron?

A neuron is a nerve cell that is saddled with the responsibility of transmitting electrical impulses down an axon across a cellular membrane of the body of a living organism through an action potential.

In Science, a ligand-gated channel is a type of ion channel in the membrane of neurons which open or close in response to a neurotransmitter that binds to its receptor.

Read more on neurons here: https://brainly.com/question/13076783

How does temperature change as altitude increases

Answers

Answer:

Temperature varies with altitude, as follows: In the troposphere, temperature decreases as altitude increases.

Explanation:

Answer:

Temperature decreases as altitude increases

How do the epithelial tissues act as a savior for us?

Answers

Answer:

Epithelial tissue is one of the four main types of body tissue found in your organs and covers internal and external surfaces in your body. It has several different structures and functions depending on where it is in your body.

Answer:

The epithelial tissues serves as a barrier and protection between internal cells and the dirt and microbes in the environment. It is what gives humans the ability to stretch, to move our fingers and arms in many positions.

What are the symptoms of cervical cancer in the early stages?.

Answers

Answer:

abnormal vaginal bleeding including between periods, after menopause and after intercourse

abnormal or increased amount of vaginal discharge

foul-smelling vaginal discharge

unusually long or heavy periods

bleeding after a pelvic exam or vaginal douching

Explanation:

Hope this helps! :)

what is the role of the seminal vesciles and the prostate gland​

Answers

Answer:

The seminal vesicle and the prostate glands add their secretions so that the sperm are in a fluid that makes their transport easier, and this fluid also provides nutrition.

Explanation:

Answer:

The seminal vesicle and the prostate glands add their secretions so that the sperm are in a fluid that makes their transport easier, and this fluid also provides nutrition.

Explanation:

A molecule that possesses both a protein component and an RNA component is referred to as a ________

Answers

Answer:

Ribosome

Explanation:

Their subunits are made of rRNA and protein.

According to the U.S. Department of Energy, a typical home in the United States uses approximately 900 kWh of electricity per month. On an annual basis, this is 900 kWh/month x 12 months/year = 10,800 kWh/year How many homes can a 500 MW power plant with a 0.9 capacity factor support? Begin by determining how much electricity the plant can provide per month: 1 MWh equals 1,000 kWh, so to convert MWh per month into kWh per month, we multiply by 1,000: So, On average, a 500 MW power plant can supply roughly 360 homes with electricity. a. During summer months, in hot regions of the United States, some homes run air conditioners continuously. How many homes can the same power plant support if average electricity usage increases to 1,200 kWh/month during summer months? Show your work.

Answers

Based on the energy generated by the power plant annually, the number of households the plant can support:

if energy usage is 10,800 kWh/year = 365000 householdsif energy usage is 24000 kWh/year = 164250 households

What is electrical energy?

Energy is energy that is due to movement of electrically charged particles.

Electrical energy is used in homes for many purposes.

Electrical energy is sold in units of kWh.

Data provided:

Capacity of power plant = 500 MW

Capacity factor = 0.9

Average annual household energy usage = 10,800 kWh/year

Energy generated in a year = 24 × 365 × 0.9 × 500 MW = 3,942,000 MWh/year

3,942,000 kWh/year = 3,942,000,000 kWh/year.

Number of households the power plant can support = 3,942,000,000 kWh/10800 = 365000 households

Number of households the power plant can support is 365000 households

If monthly electricity usage increases to 1,200 kWh

In a year, energy usage = 1200 × 12 = 24,000 kWh/ year

Number of households the plant can support = 3,942,000,000 kWh/24,000 = 164250 households

Therefore, based on the energy generated by the power plant annually, the number of households the plant can support:

if energy usage is 10,800 kWh/year = 365000 householdsif energy usage is 24000 kWh/year = 164250 households

Learn more about about electrical energy at: https://brainly.com/question/25475663

Will give brainliest to gives correct answer ​

Answers

Explanation:

A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water known as a shelf sea.

FEATURES

1. They are broad, gently sloping plains covered by relatively shallow water.

2. They are usually covered with a layer of sand, silts, and silty muds.

3. Their surfaces exhibit some relief, featuring small hills and ridges that alternate with shallow depressions and valley like troughs.

A continental slope is an area of steep slope extending just after the continental shelf upto a considerable depth from where a gentle sea plain takes its form.

FEATURES

1. It has a relatively flat terraces and (under certain conditions) basins perched on the slope.

2. Continental slopes show a complex balance between erosional and depositional processes.

3. the sediments slough off and forms a continental slope.

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