Deoxygenated blood fills this receiving room.

Answers

Answer 1
The Atria Are the Heart's Entryways for Blood
The left atrium and right atrium are the two upper chambers of the heart. The left atrium receives oxygenated blood from the lungs. The right atrium receives deoxygenated blood returning from other parts of the body.

The heart

Related Questions

During hydrolysis, what molecule is used to split a large compound?

Answers

Answer:

water molecule

Hydrolysis. Polymers are broken down into monomers in a process known as hydrolysis, which means “to split water,” a reaction in which a water molecule is used during the breakdown. During these reactions, the polymer is broken into two components.

Explanation:

Explain how a swinging bat has kinetic energy?
Kinetic energy can be found in all bats.

The bat is gaining kinetic energy from the air around it.

Any matter that is moving has kinetic energy.

The bat has stored energy that is now being release.

Answers

Answer:

Explanation:

D

Explain why you think science is important?

Answers

Explanation:

Science is valued by society because the application of scientific knowledge helps to satisfy many basic human needs and improve living standards. Finding a cure for cancer and a clean form of energy are just two topical examples. ... Education could become the most important application of science in the next decades.18-Aug-2014

Answer:

for medicine,agriculture,food production,natural product...etc

Dr. Nachman and his colleagues collected rock pocket mice across 35 kilometers of the Arizona Sonoran Desert, which included both dark, rocky lava outcrops and light, rocky, granite areas. They recorded substrate color, and coat-color frequencies for each location. Each site was separated from any of the others by at least eight kilometers. The researchers trapped a total of 275 mice. Their data are summarized below (numbers have been slightly modified for the purposes of this worksheet).
(numbers have been slightly modified for the purposes of this worksheet).
Field Data Summary
Collecting Site Substrate Color Number of Mice Phenotype
Light Dark
1 Dark 22 3 19
2 Light 80 74 6
3 Light 22 19 3
4 Dark 28 3 25
5 Light 58 25 33
6 Dark 65 9 56
1. Calculate the overall frequencies of light-colored mice and dark-colored mice caught on light-colored substrates.
2. Calculate the overall frequencies of light-colored mice and dark-colored mice caught on dark-colored substrates.
3.Using the Hardy-Weinberg equation and data from the table above, determine the frequency of the three genotypes on the light, rocky, granite substrate.
4. Using the Hardy-Weinberg equation and data from the table above, determine the frequency of the three genotypes on the dark, rocky lava substrate.
5. Which fur color seems to have the greatest overall selective advantage?
6.What environmental change gave a selective advantage for one coat color over another?
7. In a separate study, 76 rock pocket mice were collected from four different, widely separated areas of dark lava rock. One collecting site was in Arizona. The other three were in New Mexico. Dr. Nachman and colleagues observed no significant differences in the color of the rocks in the four locations sampled. However, the dark-colored mice from the three New Mexico locations were slightly darker than the dark-colored mice from the Arizona population. The entire Mc1r gene was sequenced in all 76 of the mice collected. The mutations responsible for the dark fur color in the Arizona mice were absent from the three different populations of New Mexico mice. No Mc1r mutations were associated with dark fur color in the New Mexico populations. These findings suggest that adaptive dark coloration has occurred at least twice in the rock pocket mouse and that these similar phenotypic changes have different genetic bases. How does this study support the concept that natural selection is not random?
8. To determine if the rock pocket mouse population is evolving, explain why it is necessary to collect fur color frequency data over a period of many years.

Answers

Answer:

1)

frequencies of light-colored mice  ≅ 0.74frequencies of dark-colored mice ≅ 0.26

2)

frequencies of light-colored mice ≅ 0.13frequencies of dark-colored mice ≅ 0.87

3)

q² = 0.74p² = 0.02 2pq = 0.24      

4)

q² = 0.13p² = 0.42pq = 0.46

5)

The dark-colored fur seems to have the greatest overall selective advantage

6)

Dark lava, that changed the color of the substrate, from light to dark.

7)

Because to produce dark color, animals from the different regions suffered different mutations that drove them to have almost the same dark fur color. All of the animals are inhabiting dark substrate, which means that this environmental condition is favoring the same phenotype.

8)

To see if the mice population is evolving, you need to take a sample of animals per year, through many years, and analyze if it is changing or not. If the population is evolving, you will notice a change in the allelic and genotypic frequencies over the years, favoring one genotype or the other. If the population is not evolving, the frequencies will keep equal through the years, it will not change.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

Which of the following is NOT a function attributed to Glia?
~They prevent toxic substances from reaching the brain.
~They process information going into the neuron
~They eliminate foreign substances inside neurons.
~They provide insulation for axons.

Answers

Answer:

~They process information going into the neuron

Explanation:

This is because Glia or neuroglia cells are cells found in the central nervous system that is brain and spinal cord and they did not transmit electrical impulses. Glia cells don't carry information because they don't carry electrical impulses. The cells include epipdymal cells,Schwann cells e.t.c.

They perform four major function and they include; They provide support and supply nutrients and oxygen to the cells,it prevent toxic or foreign substances from entering the neurons,they provide insulation for axons.

2. How does a generator create current?

Answers

It is important to understand that a generator does not actually 'create' electrical energy. ... This movement creates a voltage difference between the two ends of the wire or electrical conductor, which in turn causes the electric charges to flow, thus generating electric current.

Energy (check all that apply)

a. can be transferred
b. can be transformed
c. can be created or destroyed
d. cannot be created or destroyed

Answers

A, B , D
explanation:

In peas, round shape is dominant (R) over wrinkled (r) and yellow color is dominant (Y) over green (y). If both parent plants are heterozygous for both traits,
what is the probability of an offspring's phenotype being round and yellow?

HELP I NEED A NUMBER OUT OF 16

Answers

Answer:

9/16

Explanation:

RrYy x 2

Answer:

9 out of 16 (also 9/16)

Explanation:

Count the likeliness of the offspring to be round:

RR, Rr, rR, rr

round shape is 3 out of 4 times

Count the likeliness of the offspring to be yellow:

YY, Yy, yY, yy

yellow color is 3 out of 4 times

Multiply the likeliness of being round and being yellow (since they are two independent probabilities, we are using multiplication rule):

3/4 * 3/4 = 9/16

Make me the brainliest ;)

What characteristic do all protists have in common?
A) flagella that help them move
B) structures made of many cells
C) ability to make their own food
D) cell nuclei that contains DNA

!!^^^

Answers

Answer:

D

Explanation:

All other answers are not true.

The answer is D I think

PLEASE ANSWER QUICKLY
Which pattern of inheritance does nose size follow?
complete dominance
codominance
incomplete dominance
sex-linked dominance

Answers

Answer:

incomplete dominance

Explanation:

This is because incomplete dorminance is a type of inheritance pattern in which a dorminant allele does not completely masked the effect of recessive allele. The recessive allele is expressed little and the dorminant. Example is the nose size. The allele for big nose and recessive allele for small nose are not completely dorminant.

1.Evolution is as much a fact as the fact that planets go around the Sun
2.Evolution is primarily concerned with the origin of humans
3.According to evolution, people came from monkeys a long time ago
4.Evolution is something that happened only in the past, it is not happening now
5.Evolution is something that happens to individual organisms
6.Evolution was developed as an idea to destroy or undermine religion
7.In order to accept evolution as a real process, you cannot believe in God
8.Evolution is only a theory
9.Biological, medical, and agricultural research increasingly assume that evolution occurs
10.Evolution involves individuals changing in order to adapt to their environment

each are either true or false

Answers

Answer:

1. true

2. false

3. true

4. false

5. false it happens to a species

6. false

7. false? not shure on this one

8. false

9. true

10. true

Answer:

I'd love to hear you explain this to a Muslim or Islam. Why pick on Christians and not Hindus or Buddhists? You are saying they are wrong by claiming evolution is real. Also, maybe give some evidence next time you blindly state information.

Can diffusion and osmosis take place at the same time?

Answers

yes it can take place at a same time.u can check it out through this link
Source(s): www.biologycorner.com/bio1/diffusion.html

Answer:

yes

Explanation:

The role of the institutional animal care and use committee (IACUC) of a research institution is to provide research animals with clean and healthy conditions in the laboratory. mediate the acquisition of animals by the institution's researchers. review all proposals for animal research to be sure the procedures to be used are appropriate and humane. review animal research proposals only to ensure that the proposed experiments are scientifically valid.

Answers

Answer:

review all proposals for animal research to be sure the procedures to be used are appropriate and humane.

Explanation:

The Institutional Animal Care and Use Committee (IACUC) is a federal committee responsible for approving and/or prohibiting the use of animal (nonhuman vertebrate) subjects for research, testing and teaching purposes, as well as the inspection of animal facilities. IACUC evaluates the institution's animal programs and procedures as described by the Office of Laboratory Animal Welfare (OLAW). This committee has the task to verify animal's well-being by minimizing pain and distress (for example, by ensuring the use of non-invasive methods when possible). Researchers/educators that use animals for research/teaching purposes must previously submit a written request defined by the IACUC's guidelines.

I NEED HELP ON THIS QUESTION ^^^^!

Answers

Answer:

The answer is refraction.

Explanation:

Absorption is when no light is reflected back, diffraction is where light bends around a corner, reflection is like taking and shining a flashlight against a mirror, and refraction is like when you put a straw in water and it looks like the straw is not straight.

Answer:

D reflection nga

wala na bang ibang tanong HAHAHHA

A scientist wants to examine a genetic disease in humans. The scientist hypothesizes that the disease can be treated by using gene therapy. Humans take a long time to reproduce and develop, so the scientist will have to
give up on testing the hypothesis.
test the hypothesis for a very long time.
develop new methods to test the hypothesis.
find a way to make humans reproduce faster.

Answers

Answer:

answer is B

Explanation:

its on edg

Answer: C. develop new methods to test the hypothesis.

Explanation:

2. What may happen to an alcoholic if he or she suddenly stops drinking?
1.addiction to other drugs
2.health is restored
3.intoxication
4.withdrawal symptoms

Answers

4.
when you are addicted usually you might have withdrawals.

Answer:

4

Explanation:

Withdrawal is different for everyone; there really is no "normal" and it can be hard to predict an individual person's experience. Some symptoms—like changes in sleep patterns, fatigue, and mood swings—can last for weeks or months. You'll likely begin to feel better around five days to a week after you stop drinking

What effect did the human population have on Easter Island? How did they change the island's natural cycling of matter and energy?​

Answers

Answer:

The population history of the island remains highly controversial. In addition to internal conflict, the population crash has been attributed to “ecocide,” in which the Island's resources were exhausted by its inhabitants, reducing its ability to support human life.

Explanation:

Europeans was known to discovered Easter Island in 1722 and it's name was given by Captain Admiral Jacob Roggeveen.

The human population growth had a negative effect on the Easter Island.

The ecocide hypothesis is the one explanation to how the human population increased exponentially since its colonization and as such

Human populations did over increased the carrying capacity of the Island to support sustainable crops, and in consequence, the island was severely deforested.

The island's natural cycling of matter and energy also reduced or change and as such the people fought among themselves for scarce resources of the island. They had little food and were starving and they resorted to cannibalism.

The island was also plaque by blackbirding from 1862 to 1863.

Learn more from

https://brainly.com/question/22380112

How “Competition in an ecosystem” is playing a role in life?

Answers

What did you say about the cats in your room haha

In guinea pigs, the allele for black fur (B) is dominant over the allele for brown (b) fur. A black guinea pig is crossed with a brown guinea pig, producing five F1 black guinea pigs and six F1 brown guinea pigs. a. How many copies of the black allele (B) will be present in each cell of an F1 black guinea pig at the following stages: G1, G2, metaphase of mitosis, metaphase I of meiosis, metaphase II of meiosis, and after the second cytokinesis following meiosis

Answers

Answer:

G1: One copy of the B allele per cellG2: Two copies of the B allele per cellmetaphase of mitosis: Two copies of the B allele per cellmetaphase I of meiosis: Two copies of the B allele per cellmetaphase II of meiosis: One copy of the B allele per cellsecond cytokinesis following meiosis: One copy of the B allele in only two of the four daughter cells.

Explanation:  

Due to technical problems, you will find the complete explanation in the attached files

According to the Base Pair rule, Cytosine always pairs with

Answers

Answer:

Guanine always pairs with Cytosine. :)

List and explain the characteristics of living things

Answers

Answer:

Life process

Movement

Respiration

Sensitivity

Growth

Reproduction

reason:

Life process

Explanation

Earthworms

Movement

All living things move in some way. This may be obvious, such as animals that are able to walk, or less obvious, such as plants that have parts that move to track the movement of the sun.

Earthworms use circular and longitudinal muscles to move through soil or along surfaces.

Respiration

Respiration is a chemical reaction that happens within cells to release energy from food.

The food that earthworms eat supplies their body with energy-rich molecules such as glucose. On entering the cells of their body, these molecules are broken down in a series of steps to release energy to be used by the body, producing carbon dioxide and water as waste products.

Sensitivity

The ability to detect changes in the surrounding environment.

Earthworms have light-sensitive cells scattered in their outer skin. Their skin cells are also sensitive to touch and chemicals.

Growth

All living things grow.

Earthworms hatch from eggs and can grow up to a metre or more in length! Some earthworms are also able to regrow small parts of their body that have been lost or injured.

Reproduction

The ability to reproduce and pass genetic information onto their offspring.

Earthworms have both sperm and eggs within their bodies (they are hermaphrodites) but they cannot self-fertilise and need to mate with another individual. After mating, a cocoon containing the fertilised eggs is deposited in the soil.

Excretion

Getting rid of waste.

Earthworms excrete waste from their anus – the last segment of their body.

Nutrition

The intake and use of nutrients. This occurs in very different ways in different kinds of living things.

Earthworm nutrition comes from a variety of sources, depending on their species. Food types include manure, compost, plant material, fungi, microorganisms and decaying animals. They take in food through their mouths.

Due Tuesday
Write the name of the root tissue on the corresponding line. What are the two ways root cells grow?

Answers

The actively dividing cells, or meristems, control plant growth. Primary (apical) meristems, the dividing tissue at the tips of the roots, grow longer roots, and secondary meristems, the dividing tissue seen in the cross-sections, grow thicker roots.

state whether bone is dead or living tissue, explain your answer​

Answers

Bones are living tissue which have their own blood vessels and are made of various cells, proteins, minerals and vitamins. Yes I do think they are, also the fact that new cells are made everyday from the bone marrow.. so thus it is a living tissue.. if the organism is dead then it’s dead too

The relationship between a carnivore and an herbivore can be stated as
A
parasite and host
B
predator and prey
C
prey and predator
D
scavenger and parasite

Answers

The relationship between a carnivore and an herbivore can be stated as B predator and prey.

What are the predator and prey ecological relationships?

The predator and prey ecological relationships can be defined as ecological associations in which an organism serves as food for others in the food web, thereby leading to the homeostasis of the whole system in the food chain.

Therefore, with this data, we can see that predator and prey ecological relationships are based on different trophic levels where one organism situates below in the food chain is the prey of another.

Learn more about predator and prey relationships here:

https://brainly.com/question/24537210

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What are TWO methods that can be used by the villagers to catch fish in the river?

Answers

Answer:

Hand operation  

Hook and line

Explanation:

In 4-5 sentences, explain why it is important for our cells to undergo the cell cycle.

Answers

Answer:

If our cells don't undergo the cell cycle, our body will run out of cells and we'll maybe suffer from diseases and the cells in our body isn't able to fight the disease and we might die. Our body is made up of good cells which protects our health.

What is a tumor? *
a mass of cancer cells
O a defective p53 gene
An accumulation of cyclins
O the rapidly dividing cells found at the site of a wound

Answers

Answer:

i think it is.. a mass of cancer cells

Explanation:

Genomic imprinting may involve a single gene, a part of a chromosome, or a whole chromosome. Indicate if the following statements are true or false regarding this phenomenon
1. Genomic imprinting is permanent in the somatic cells of a given individual. _____________
2. Genomic imprinting is permanent and affects future generations. ____________
3. Methylation is the chemical change underlying genomic imprinting. _____________
4. If a gene is imprinted, the offspring can express both the maternal and paternal allele. _________

Answers

Answer:

1. True.

2. False.

3. True.

4. False.

Explanation:

A genome can be defined as the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).

Genome imprinting can be defined as an epigenetic biological process in which a genomic domain or genes of a living organism is marked biochemically with information that is related to parental origin. Thus, it is a non-Mendelian inheritance i.e genome imprinting is typically independent of Mendelian inheritance.

1. True: Genomic imprinting is permanent in the somatic cells of a given individual.

2. False: Genomic imprinting is permanent and affects future generations. It does not affect future generations because generally it is expressed in a parent of origin specific form.

3. True: Methylation is the chemical change underlying genomic imprinting.

4. False: If a gene is imprinted, the offspring can express both the maternal and paternal allele. It is independent of Mendelian inheritance.

lauren was walking in the woods when she found a rotting log. when she looked closely at the log, she saw that a decomposer was working to break down the wood. which could be the decomposer she saw on the log?
A. grass
B. mouse
C. mushroom
D. caterpillar

Answers

Answer:

C. mushroom

Explanation:

fertilization that happens when sperm cells are released into the body of the female animal ​

Answers

Answer:

If you're asking about the type it is internal

Explanation:

Mammals internally fertilise through copulation.

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