Help please
Veins have ------------ to ensure that blood under low pressure can return to the heart.
The circuit of circulation that goes from the heart to the body cells and back to the heart is called ---------------- circulation.
he oxygenated and deoxygenated blood are kept separate in the mammalian heart by the -----------.

Answers

Answer 1
1) valves 2)pulmonary circulation 3)mitral valve

Related Questions

please put them in the correct place!

Answers

1- mate choices
2-mutations
3-natural selection
4-shrinking population
5-movement( gene flow)

Carbon dioxide, water vapors, methane, and ozone in the atmosphere result in a The greenhouse effect b Acid rain C Photoionization d Photodissociation​

Answers

Answer:

A, The greenhouse effect.

Explanation:

Los principales GEI en la atmósfera terrestre son el vapor de agua (H2O), el dióxido de carbono (CO2), el metano (CH4), el óxido nitroso (N2O) y el ozono.

Esi lo que se espero y te sirva

What are the chemical origins of life?

Answers

Answer: The chemical origin of life refers to the conditions that might have existed and therefore promoted the first replicating life forms. It considers the physical and chemical reactions that could have led to early replicator molecules. All life is composed mainly of the four macromolecule building blocks: carbohydrates, lipids, proteins, and nucleic acids. The interactions of different polymers of these basic molecule types make up the majority of life's structure and function.

What interaction best illustrates the concept of mutualism​

Answers

Here’s what I found: Mutualism is very important in ecology. In this case, the nitrogen-fixing bacteria invade the root hairs of host plants, multiplying and stimulating the formation of root nodules, enlargements of plant cells and bacteria in intimate association. (Hope this helps!)

Which statement describes the most likely result of a field being cleared to build homes?

Answers

Answer:

Answer: Biodiversity will decrease

Explanation:

i did the test

hope this helps:)

Why are viruses considered to be nonliving?

Answers

Answer:

B

Explanation:

they only live when in a host other then that in wont live fully

B will be your answer
Hope this helps!

All living things depend on water for survival. In an organism, what is water?
A. a tissue
B. a cell
C. a molecule
D. an organ

Answers

Answer:

A.tissue

Explanation:

Water is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms. It is vital for all known forms of life, even though it provides no calories or organic nutrients

What is mitosis and why is it important to an organism?

Answers

☁️ Answer ☁️

What is mitosis?

Mitosis definition is the division of the mother cell into two daughter cells genetically identical to each other.

Why is it important?

Mitosis is important because it is essential for growth and repair in the body. Mitosis happens when a parent cell divides, creating two identical copies, referred to as daughter cells.

Hope it helps.

Have a nice day!~  ̄▽ ̄❤️

The diameter of the diagram is 35 mm.

The diagram is 5000 times larger than the actual zygote.

Calculate the diameter of the zygote.

Answers

Answer:

35 ÷ 5000,

0.007 OR 7 x 10^-3 (mm)

Explanation:

the members of these kingdoms all have cell walls. Which kingdoms are they?

Answers

Answer:

kingdom plantae

Explanation:

members of this kingdom have a cell wall that gives their cells a box like structure

Organisms that belong to Kingdom Monera, Protista, Fungi, and Plantae all have cell walls.

What is a cell wall?

The cell wall is the outermost covering of the cell which provides the cell with a rigid structure and protects it from the outside environment. It is present outside the plasma membrane.

The composition of the cell wall differs in different organisms. The cell wall in plants is composed of cellulose, hemicellulose, and pectin. In algae, the cell wall is composed of glycoproteins and polysaccharides.

Bacteria that belong to Kingdom Monera possess a cell wall composed of peptidoglycan while the organisms of Kingdom Fungi have a cell wall made up of chitin.

Therefore, organisms of the four kingdoms Monera, Protista, Fungi, and Plantae all possess a cell wall.

To learn more about cell walls, refer to:

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What are the 7 HACCP Principles
1.
2.
3.
4.
5.
6.
7.​

Answers

Answer:

1. Conduct a Hazard Analysis

2. Determine critical control Points

3. Establish the critical limits

4. Establish measures to control the hazards

5. Establish corrective actions

6. Establish verification procedures

7. Establish record-keeping and documentation procedures

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Echinodermata means..

A.)star fish.
B.)little rings.
C.)spiny skin.
D.)filter feeder.

Answers

Answer:

The answer is C. Spiny skin.

what is a cladogram and why is it used​

Answers

Answer:

A cladogram is a diagram used to represent a hypothetical relationship between groups of animals, called a phylogeny. A cladogram is used by a scientist studying phylogenetic systematics to visualize the groups of organisms being compared, how they are related, and their most common ancestors.

Explanation:

please no coments

Answer:

A cladogram is a diagram that shows the relationships between organisms. It is used for scientists to visually see how organisms are related,  the common ancestors they have, and allows people to compare organisms to each other.

Let me know if this helps!

8
The question below is an incomplete sentence. Choose the word that best
completes the sentence.
The Okapi has delayed defecation in order to limit the amount of scent that could
attract a predator to a calf the mother is foraging for food.
А
while
B
before
С
after
D
SO

Answers

Answer:

A; while

Explanation:

Answer:

While

Explanation:

Attracting a predator and the mother foraging for food are actions that happen concurrently, so while is the best connector

What are two example of thermal energy in the real world? Thanks in advance

Answers

HOPE THIS works

Explanation:

Boiling water on a stove is an example of thermal energy. Thermal energy is produced when the atoms and molecules in a substance vibrate faster due to a rise in temperature.

HELP PLEASE!!!! IM LEGIT GONNA BEG AT THIS POINT

Answers

Answer:

1) B

2)W

3)B

4) C

Explanation:

Would it take more or less generations for a larger population to acquire a fixed allele? Explain why.
Plzzzz HELP

Answers

Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.Drift is more pronounced in such populations, because smaller populations have ... To get a feel for genetic drift, consider a population at Hardy-Weinberg ... the probability that the allele frequencies will remain unchanged is higher for the ... The number of breeding individuals is constant from one generation to the next.

The atom shown below is
A. likely to form a covalent bond
o B. likely to form an ionic bond
C. not likely to form any bonds
OD. likely to form double bonds

Answers

Answer:

C. Not Likely to form any bonds

Explanation:

Assuming this atom is of neutral charge, it would be neon. We can tell as it has 10 electrons total. 2 in the first shell, 8 in the second. Noble gasses do not  form bonds, generally speaking.

Furthermore, any atom, ion or not, that has a full valance (outermost shell) is generally not likely to form bonds.

The foliated metamorphic rock that forms when the sedimentary rock shale is subjected to relatively low temperatures and pressures is

Answers

The answer is slate .

Consider plant roots and stems. Which tropism affects both these plant tissues? Which tissue experiences negative tropism versus which experiences positive tropisms?

Answers

Stems experience positive tropism because they follow light

Roots are negative tropism

Hope I helped

The tropism experiences by  both roots and stem tissue of a plant is geotropism.

Tropism is defined as the biological phenomenon in which the growth is affected with the response to stimuli.

Which tropism is found in both stem and root tissues?

The tropism that affects the growth of plants are related to the gravity. The gravity force allows the roots to grow in the direction  of gravity, and the stem grow in the direction opposite to the gravity.

The type of tropism found in the plants with respect to gravity is geotropism.

The roots are moving in the direction of the gravity, thus they experience positive geotropism. The stem moving in the opposite direction to gravity, thus it experiences negative geotropism.

Learn more about tropism, here:

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Pregunta de ecología: ¿Cuáles factores ecológicos afectan a los ecosistemas acuaticos? - Describe cómo afecta cada uno de estos factores, a los ecosistemas acuáticos.

Answers

Answer:

Salinidad, acidez, oxígeno, niveles de luz y temperatura.

Explicación:

Los factores ecológicos como la salinidad, la acidez, el oxígeno, los niveles de luz, la profundidad y la temperatura son los factores que afectan en gran medida a los ecosistemas acuáticos porque estos factores proporcionan ambiente a los organismos que viven en el ecosistema. La salinidad y acidez tiene un efecto directo sobre las plantas acuáticas, si la salinidad y acidez es muy alta los organismos de ese ecosistema morirán. Los niveles de oxígeno y luz también tienen un gran impacto en los animales acuáticos, si se reducen los niveles de oxígeno y luz, los organismos morirán por asfixia y las plantas no pueden producir alimentos si los niveles de luz son bajos. La temperatura del agua ayuda a la supervivencia de los organismos porque muchos organismos son sensibles a la temperatura.

Describe how the first organic molecules arose.

Please don't copy the answer from Googl.e.

Thank you!

Answers

Atoms combined to make molecules most likely through compound or ionic bonds

Answer: due to chemical change/reaction, and combinations

Explanation:

Hey guys could you please help me???

Which of the following is the most inclusive component of an organism?

A.
DNA
B.
genes
C.
proteins
D.
chromosomes

Answers

Answer:

Seems subjective but I'd say A.

Answer:

D.. chromosomes

Explanation:

it is one of the most inclusive component of an organism

Translate the following DNA Strand:
GUC AUG UUU AGU UCC CUA UAG

Answers

Answer:

The complimentary strand of codons would be CAG-UAC-AAA-UCA-AGG-GAU-AUC.

Explanation:

C (Cytosine) pairs to G (Guanine).

Think of it as *C*ar in the *G*arage.

A (Adenine) pairs to U (Uracil).

Think of it as *A*pples *U*nder the tree.

Answer:

(GUC) Valine (AUG) start codon ( UUU) lysine (AGU) serine (UCC) serine (CUA) serine (UAG) codons

Punnett squares use mathematical probability to help predict the genotype and phenotype combinations in genetic crosses. Select the steps below that describe how to construct Punnett squares.

Answers

Question:

I failed to find the options, but I will post the way by which you can construct Punnett squares.

Answer and Explanation:

First, you need to know both parental individuals´ genotypes. From these genotypes, you will get all the possible gametes for each parent, following the principle of simple segregation.

Then, by using a simple square, you will make the crosses. This is:

You will locate all the possible gametes of one parent on the top of the squareYou will place all the possible gametes of the other parent on the left edge of the square.Once you have done that, you will perform the crosses. You will look for the intersection between each parent´s gametes and place all the involved alleles in the intersection-box. These are the possible genotypes, and they will be written within the square.

In the attached files, you will find an example of the cross between two pure-breeding plants.

In your own words describe why is sugar needed in the blood?

Answers

Explanation:

Blood sugar, or glucose, is the main sugar found in blood. The body gets glucose from the food we eat. This sugar is an important source of energy and provides nutrients to the body's organs, muscles and nervous system.

HOPE IT HELPS!

Answer:

sugar is like the source of energy it is needed to help and provided a good amount of healthness to you due to if u have to much exercise but this provides a significant amount of energy

Explanation:

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As amino acids are lined up by tRNA, they form bonds. What is made from very long chains of these amino acids?
A. amino acid complexes
B. mitochondria
C. rRNAs
D. proteins​

Answers

Answer:

Protiens

Explanation:

Amino Acids are protiens, so after the tRNA join to the MRNA peptide bonds are formed creating long protien chains which are protiens.

It’s d hope it helps

what is this data saying?

Answers

Answer:

Gene flow is the exchange of alleles between two or more populations. For this reason it is sometimes referred to as allele flow or gene migration. While migrating animals often carry new alleles from one population to another, they must interbreed with the new population for gene flow to occur. In the image below, a beetle from a population of brown beetles migrates into a population of green beetles.

What are the different types of blood? Explain

Answers

Answer:

There are 4 different blood types: A, B, AB, and O. Genes that you inherit from your parents (1 from your mother and 1 from your father) determine your blood type. Blood is always being made by the cells inside your bones, so your body can usually replace any blood lost through small cuts or wounds.

Explanation:

In the formula, E K = 1/2 • m • v 2 if mass (m) was doubled, how much would kinetic energy
(E K ) increase or decrease? If velocity (v) was doubled, how much would kinetic energy (E K )
increase or decrease?

Answers

Answer:

mass doubled makes KE twice as large

velocity doubled makes KE 4 times as large

Explanation:

Try it with an example

m = 4

v = 8

KE = 1/2 m * v^2

KE = 1/2*4 * 8^2

KE = 1/2 * 4 * 64

KE = 128

Now double the mass

m  = 8

v = 8

KE = 1/2 8 * 8^2

KE = 1/2 8 * 64

KE = 4 * 64

KE = 256 double what it started out as.

Now do it again.

m = 4     That was the original mass

v = 16

KE = 1/2 4 * 16^2

KE = 2 * 256

KE = 512

When the velocity is doubled the KE becomes 4 times as big.

4*128 = 512

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I NEED HELP ASAP SO MUCH POINTS!!!!! PLEASE a proffesional please help lol Kay's Dessert Shop bakes cookies. The ratio of chocolate chip to sugar cookies baked is always 5 to 2. If she bakes 210 cookies in one day, how many were sugar cookies? 50 points I'LL GIVE BRAINLIEST:What are the two main causes of cardiovascular disease?A. GenesB. BehaviorC. ExerciseD. Germs Solve for 4(3x - y) -2(4y - 5x) = Stephan and John are reading the same book. Stephan reads 7 pages a day and is on page22. John reads 9 pages a day and is on page 10. How many days until Stephan and John are on the same page? What page will they be on? Help me please !!!!!!!!! help PLEASEE! I'll mark brainliest if correct Can someone please check my answer??!! How can organisms that die without reproducing still propagate their genes HELP I HAVE 20 MINUTES TO ANSWER!!!!!In the 1983 case of Hazelwood v. Kuhlmeier, did the Supreme Court agree or disagree with the principal and why? (4 points)Group of answer choicesThe Supreme Court agreed with the principal but said the article could be published in the school newspaper as long as the father's response was also included in the article.The Supreme Court agreed with the principal, stating educational administrators had the right to censor material that was deemed contrary to the school's educational mission.The Supreme Court disagreed with the principal, citing Tinker v. Des Moines and stated the principal had violated the students' First Amendment rights of freedom of speech.The Supreme Court disagreed with the principal, stating that newspaper editors could print students' stories and opinions without censorship as long as the material was not profane One week, Madeline earned $61.20 at her job when she worked for 4 hours. If she is paid the same hourly wage, how many hours would she have to work the next week to earn $214.20? What is a number between 1.63 and 1.64 Translate the following phrases into French. Note the hints in parentheses.Im going to high school. My friends are going fishing. h(x) = x^2 + 2 - x g(x) = 4x + 5 find (h - g) (x/3) Which was a goal of Georgias white primary system?to increase voter participationto prevent white Americans from votingto prevent African Americans from votingto help integration take hold in Georgia What is the area of the triangle below (in square units)?1 yd1 yd Amelia was showing off her basketball skills. She scored a total of 14 shots for a total of 32 points. How many 2 point and 3 point shots did she make? 13) Are these comparisons TRUE or FALSE? 1/4< 3/4 7/3 > 5/3 2/3 > 2/8 Plz, Help me! Due on Sunday or two days from today.