Why is the ventricle of the frogs heart thicker and more muscular than the Atria

Answers

Answer 1

Answer: The thick muscular wall of the left ventricle ensures that it develops a higher pressure during contraction in order to force blood through the body


Related Questions

Science 8th grade how does comparing the classification of two animals tell us how they are related

Answers

Answer:

it tells us what group they belong to and the similarities between different classifications

Explanation:

Answer:

it can explain similar groupings of organisms based on their characteristics or traits

Explanation:

Explain how dna polymerase chooses which nucleotides to put into the new strand. Be specific and detailed in your explanation of how this selection is accomplished to make the correct dna molecule

Answers

DNA polymerase adds nucleotides at the 3' primer end of the DNA. This DNA polymerase checks the newly added base has correctly paired with the base in the template strand or not. Based on this it adds the new nucleotide.

What is nucleotide?

Nucleotide is the nucleoside with a phosphate group. It generally stack or link with each other to make a polynucleotide chain.

DNA polymerase adds these nucleotides one by one to the 3' primer end on the DNA strand.

It usually checks the correct pairing of the base with the template strand and then adds the new nucleotide to it.

Thus, by this step DNA polymerase choose nucleotides to put into the new strand.

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Has biodiversity changed in the desert over time?

Answers

information suggests that desert and dryland biodiversity is declining rapidly
Biodiversity is low in desert ecosystems

What is a group of organisms at any particular level in a classification system called?.

Answers

Answer:

Taxon

Explanation:

A group of organisms at any particular level in a classification system is called a Taxon. The term taxon has been introduced in 1948 which indicates the taxonomic group of any rank.

What two body systems help get the nutrients that are absorbed throughout the body?

Answers

Answer: The circulatory and digestive systems

WILL MARK BRAINLIEST!

Suppose you are testing different sols to determine which grows healthier bean plants. You count and record the number of leaves on each test every three days for six weeks. What type of
graph would be best to display your data?

A. Bar graph

B. Line graph

C. Circle graph

D. Scatter plot

Answers

Answer:

A line graph would be best to display the data.

Answer:

Line graph im pretty sure!! <3

Explanation:

As Earth’s population continues to grow, the need for resources also increases. Certain necessary resources will not last unless people begin using less of them.

The practice of using less of a resource to keep it around for a longer time is called
.

Answers

Answer:

Explanation:

Remark

If there are choices, please give them. The most common word for this moral activity is conservation. If this is not in your list, leave a note.

Answer

Conservation

Which point would lie on the x-axis when plotted on a graph?
(0 , 14)
(5 , 14)
(5 , 0)

Answers

Answer:

(0,14)

Explanation:

the x coordinate in (0,14) is zero meaning it sits on the x intercept

help asap please and thank you

Answers

Answer:

Dogs to Species sorry that's the only thing I can think of

What is the principle for dating materials using radioactive isotopes

Answers

It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.

How are isotopes used in radioactive dating?

These isotopes decay within the rocks according to their half-life rates, and by choosing the fit minerals and measuring the relative amounts of parent and daughter isotopes in them, the date at which the rock crystallized can be determined.

Thus, It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope.

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how do muscles get the energy they need to function

Answers

Answer:

Muscles use the stored chemical energy of food we eat and convert that to heat and energy of motion (kinetic energy). We need energy to enable growth and repair of tissues, to maintain body temperature and to fuel physical activity. Energy comes from foods rich in carbohydrate, protein and fat

Explanation:

One can tell how fast a molecule is moving by measuring its
a. shape
b. volume
c. temperature
d. mass

Answers

Answer: d. mass

Explanation: just tookthe test.

I need help with number 1 and 2

Answers

Answer:

Read the Explanation below.

Explanation:

1. I agree with the claim because you can see overall there is no difference in plant growth or variation if a plant has 30 ml of water or none at all.

2. I would measure the change in growth over a greater period of time to get a more accurate data set.

_____ is the term used to describe the biochemical representation of our experiences within the brain, which are known to deteriorate over time.

Answers

Answer:

The answer is Memory trace.

Explanation:

a hypothetical permanent change in the nervous system brought about by memorizing something; an engram.

The term that is used to describe the biochemical representation of the experiences within the brain, which are known to deteriorate over time, is "memory," which is stored in the neurons.

Memory refers to the brain's ability to think, to remember after some time etc and more is the stronger connection among the neurons more is the memory power of the brain. Over time, memories can deteriorate due to several factors, such as interference, neurodegenerative disorders, etc. Apart from this, many other things, such as the weakening of synaptic connections, the loss of neurons, etc., also lead to memory loss.

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What are the three types of species distribution patterns give an example of species that live in each

Answers

Answer:

Explanation:

a biological taxon is spatially arranged. The geographic limits of a particular taxon's distribution is its range, often represented as shaded areas on a map. Patterns of distribution change depending on the scale at which they are viewed, from the arrangement of individuals within a small family unit, to patterns within a population, or the distribution of the entire species as a whole (range). Species distribution is not to be confused with dispersal, which is the movement of individuals away from their region of origin or from a population center of high density.

Which of the following is an example of an antigen that might be recognized by the immune system of an individual?

A. a fat molecule
B. saline solution
C. oxygen molecule
D. a viral protein

Answers

An example of an antigen that might be recognized by the immune system of an individual is a viral protein. That is option D.

What is an Antigen?

An antigen is a substance that is capable of being recognised as non-self by the immune system of an individual which can lead to an immune response.

The fat molecules, saline solution and oxygen molecule are not antigens because they can't be recognized as non-self.

Therefore, an example of an antigen that might be recognized by the immune system of an individual is a viral protein.

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Immediately after ovulation, the ruptured follicle transforms into this temporary endocrine gland

Answers

Immediately after ovulation, the ruptured follicle transforms into a temporary endocrine gland known as the corpus luteum.

What do you mean by Ovulation?

Ovulation may be defined as the process through which the egg is released by the ovary during the menstrual cycle.

The corpus luteum is known as the endocrine gland because it synthesizes the hormone progesterone which makes the uterus healthy for a developing fetus.

Therefore, immediately after ovulation, the ruptured follicle transforms into a temporary endocrine gland known as the corpus luteum.

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How does urinary tract infection affect the nervous system?.

Answers

Answer:

it destruct the autonomous nervous system.

genes code for the production of ________ which can control traits.

Answers

Answer:

protein

Most genes contain the information needed to make functional molecules called proteins. (A few genes produce regulatory molecules that help the cell assemble proteins.) The journey from gene to protein is complex and tightly controlled within each cell.

genes code for the production of protein which can control traits

Physique check. How's my physique looking? I'm 15, I've been going to the gym consistently for 7 months, and I am completely natty.

Answers

Answer: Looking great dude!

I'm about to turn 17 and wish I started as young.

There really isn't a way to scale yourself other than literally measuring the braudness of you chest, arms, and waist. Or before and after images.

If you want to be bigger I'd recomend bulking and creatine. Basically it swells your musciles with water. Lactic acid is mostly water, and is also what goes towards your growth when you tear musciles.

Keep it up man, and good luck.

Explanation:

Describe 2 issues affecting Agriculture today and provide your opinion about how we should address them.

Answers

Answer: The lack of support: The government increases support for agriculture for the people and those who do the work and they do not spend as much with the increased support.

Agricultural training:

Agricultural training is necessary to acquire recent knowledge and replace obsolete or harmful techniques for the ecosystem, supply food to the population in quantity and quality, enter new markets and preserve natural resources for future generations.

Explanation:

Part of an mRNa strand has 9 nucleotide bases. How many amino acids does this strand code?

A. 2
B. 6
C. 9
D. 3

Answers

Answer:

It would code for 3 amino acids.

Explanation:

Three nucleotide bases code for one amino acid.

e.g: AUG codes for methionine

or GUG codes for valine.

Which factors play a role in creating ocean waves?
Choose all answers that are correct.

A) Wind elevation
B) Wind change
C) Wind duration
D) Wind direction
E) Wind fetch
F) Wind speed

Answers

Answer:

C, F, D

Explanation:

: wind duration wind speed wind direction

A species was added into a particular ecosystem to control the population of a prey species. This method of introducing a new species is called. The population of the added species increased, leading to an imbalance in the ecosystem. This increase happened because.

Answers

The process of introducing a new species into an ecosystem is called bioremediation. The introduced species is called invasive species.

What do you mean by Ecosystem?

An ecosystem may be defined as a place or an area where members of different species or communities live together and interact with one another for the purpose of food, shelter, space, and other resources.

The population of the invasive species enriched, directing to an imbalance in the ecosystem. This accumulation happened because the amount of resources increased in the ecosystem.

Therefore, it is well described above.

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Answer:

bioremediation

the amount of resources increased in the ecosystem

right on brainly

The dense layer of connective tissue that surrounds the testis is called the:.

Answers

The dense layer of connective tissue that surrounds the testis is called the tunica albuginea.

What are the three layers of the testis?

There are three layers to the tunica, the tunica vasculosa, tunica albuginea and tunica vaginalis.

Tunica vasculosa. The tunica vasculosa is the inner layer of the tunica and consists of blood vessels and connective tissue. Tunica albuginea.Tunica vaginalis.

Thus,  connective tissue that surrounds the testis is called the tunica albuginea.

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From which of the following does the basic structure of hair and nails form?
a.
sweat
c.
collagen
b.
melanin
d.
keratin

Answers

Answer: D. Keratin

Explanation: Keratinocytes (pronounced: ker-uh-TIH-no-sites) make keratin, a type of protein that's a basic component of hair, skin, and nails. Keratin in the skin's outer layer helps create a protective barrier.

What two different patterns of circulation are found in vertebrates

Answers

Answer:

Double circulation and coronary circulation

Explanation:

land vertebrates developing a new way to take blood from the heart to the heart and a double circulation

Answer:

Land vertebrates developed lungs, a new vein (the pulmonary vein) to take blood from them to the heart, and a double circulation, whereby the heart is effectively divided into two halves—one-half concerned with pumping incoming deoxygenated blood from the body to the lungs and the other with pumping oxygenated blood

Explanation:

True or false? swallowing has both voluntary and involuntary components.

Answers

Answer:

true po

Explanation:

pabrainlist thx tama po yan

What phase of mitosis is highlighted in the slide below?
Metaphase
Telophase
Anaphase
Prophase

Answers

Metaphase because the chromosomes are at the equator

why do scientists classify organisms

Answers

Scientists classify living things to organize and make sense of the incredible diversity of life. Classification also helps us understand how living things are related to each other.
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