Answer:
The heart valves
Explanation:
The heart valves prevent blood from flowing in the wrong direction in the heart. The valves are held in the proper place because of the chordae tendinae.
Neurons in the visual cortex respond to which type of stimulus?
Answer:
luminance
Neurons in the visual cortex respond essentially to the variations in luminance occurring within their receptive fields, where each neuron fires maximally by acting as a filter for stimulus features such as orientation, motion, direction and velocity, with an appropriate combination of these properties
Explanation:
Neurons in the visual cortex respond to luminance stimulus. They respond selectively to various stimuli depending on the features.
What do you mean by Neurons?Neurons may be defined as the cells which are responsible for receiving sensory input from the external world and processed in the brain.
Neurons in the primary visual cortex respond to local edges or contours at a particular orientation, motion, direction, and stereoscopic depth.
Therefore, neurons in the visual cortex respond to luminance stimulus.
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What effect does the Continental Divide in the United States have on water runoff?
Answer:
It separates the water that runs toward the Pacific Ocean from the water that runs toward the Atlantic and Arctic Oceans and the Gulf of Mexico.
The amount of glucose in the bloodstream is increased by the hormone.
Answer:
Glucagon, a peptide hormone secreted by the pancreas, raises blood glucose levels.
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Two different people had their DNA tested because they were suspects in an investigation. The results came back stating that their DNA was exactly the same. What can MOST likely be concluded based on these results
Inadequate blood flow to the heart muscle can cause an area of damaged cardiac tissue known as a(n) .
A myocardial infarction comprises a series of changes in the cardiac tissue that originate when there is an inadequate blood flow to the heart muscle or a coronary artery becomes blocked.
What is a myocardial infarction?It is characterized by the sudden appearance of a picture of ischemic suffering (lack of irrigation) to a part of the heart muscle produced by the acute and total obstruction of one of the coronary arteries.
It is recognized by the sudden appearance of the characteristic symptoms of intense pain in the chest, in the precordial area and a feeling of general malaise.
Therefore, we can conclude that a myocardial infarction comprises a series of changes in the cardiac tissue that originate when there is an inadequate blood flow to the heart muscle.
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At three minutes of all-out high-intensity exercise, ________ of the ATP is derived from aerobic sources.
Answer:
it is d
Explanation:
D) 60%
hope this helps..
Which of the following identifies why SRI would be useful in developing nations?
SRI does not use modern tools, but changes old planting patterns to be both more productive and more frugal.
SRI encourages clearing of wasted forest and grassland for agricultural use.
SRI encourages traditional rice growing techniques, making use of existing expertise.
SRI uses high-tech farming techniques that make users integrate with developed nations to maintain the system.
SRI encourages traditional rice growing techniques, making use of existing expertise is true about their usefulness in developing countries.
What is SRI?Socially responsible investment or "green" or ethical investing refer to a type of investment approach that majorly seeks to consider both financial return and social or environmental good or wellness so as to to bring about social change that is positive.
Therefore, SRI encourages traditional rice growing techniques, making use of existing expertise is true about their usefulness in developing countries.
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Which outdoor sport can combine both aerobic and nopn aerobic
Answer:
hiking
Explanation:
Place the phases of the Moon in the correct order, starting with the new Moon.
the blanks (not words).
A cell has 6 chromosomes during G1. During G2 it has
How many chromatids and
strands of DNA?
Answer:Neuronal cells in G2 phase demonstrate tetraploid (4N) DNA content or, more precisely, possess a nucleus with 46 replicated chromosomes.
Explanation:In the G1 phase, there are 12 chromosomes. In the S-phase of the cell cycle, the amount of DNA gets doubled. There is doubling of the chromatids but the chromosomes number remains same. The number of chromosomes in the G2 phase will be same as 12 chromosomes and the number of chromatids will be 24.
The american bison was once common in the prairie, but now wild bison are rare. Like cows, bison eat grass. What kind of organism is a bison?
Bison just like cows eat grass and are known as herbivores.
What are herbivores?Herbivores are animals which eat grass or plants as their food.
Herbivores are primary consumers since they obtain their food from the primary producers, plants.
Examples of herbivores are cows, goats, and bisons.
Therefore, since bison eat grass just like cows, bosons are herbivores.
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What will be the PHENOTYPE of all the offspring
A: short hair
B: long hair
C: impossible to know
Answer: Hello again The answer you clicked on is correct btw. Its long hair
Explanation:
The alleles would be Ll when the offspring is born and it would only be short hair if it was ll. Anything with capital “L” in it would be a long hair.
Which molecule, chlorophyll a or chlorophyll b, is more polar?.
Answer:
Molecular Structure and Polarity. The distinctions between the chlorophylls, which are more polar than β-carotene are slight: chlorophyll a has a methyl group (Y=CH3) in a position where chlorophyll b has an aldehyde (Y=CHO). This makes chlorophyll B slightly more polar than chlorophyll A.
1. Recently, researchers have demonstrated that the bacteria that causes Lyme disease alter dendritic cells. How do T-cells work to protect us from pathogens like the one that causes Lyme disease?
T-cells work to protect the body from pathogens by attacking and destroying cells infected with pathogens.
What are T-cells?T-cells are a group pf white blood cells which play a role in adaptive immunity.
T-cells work by attacking and killing cells infected with pathogens.
In the case of the infection of the dendritic cells by bacteria causing Lyme disease, the T-cells work to protect the body by attacking and destroying cells infected with bacteria.
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Answer:
Yup!
Explanation:
HW HELP Please!!!!!!!!
Which of the following statements about the use of antibiotics is NOT true?
Bacteria become resistant to the antibiotics.
O
In the past, they were often prescribed for viral infections which increased the chance
of resistance in the patient.
O Can lead to harmful effects such as becoming addicted to antibiotic treatments.
Antibiotics used in farm animals can travel up the chain increasing the chance of
resistance in consumers.
the second option I m not to sure
6. Blood type is determined by three alleles, A, B, and O. Use the
punnett square below to answer questions a through c.
a. What is the probability of an offspring with type A blood?
b. What is the probability of an offspring with type O blood?
c. What are the genotypes and phenotypes of the parents?
Answer:
a. AO
b. OO
c. AO and BO
In order to clone a gene, a gene is inserted into a.
An organism with the GG genotype would be
Answer:
Hom ozygous
Explanation:
organisms that have the same genotypes are Hom ozygous, while organism that have different genotypes (Gg) are Heterozygous
Tracy has a blood type of AB and her husband, Trevor, also has a blood type of AB. What are the
possible blood types of their children? Make a Punnett Square and summarize the phenotypic
percentages!!!
If Tracy has a blood type of AB and Trevor is also AB, then their children may have AA, BB or AB genotypes.
What is a Punnett square?A Punnett square is a diagram to represent the possible gametic combinations that will produce one or more genotypes in offspring.
In this case, the Punnett square is:
A B
A AA AB
B AB BB
In consequence, the children may have as genotypes the AA (25%), BB (25%), or AB (50%) genotypes.
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Define Photosynthesis.
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
8. Choose the best answer. Polar bears have adaptations for swimming long distances. Where is this adaptation found?
O phenotype
O genetic code in RNA
O genetic code in DNA
O genotype
Answer:
a
Explanation:
a is phenotype
Answer:
i think its phenotype
Explanation:
-phenotype is the set of observable characteristics or traits of an organism
Can we use molecules other than glucose for cellular respiration?
Answer:
Other organic molecules such as fat and protein are also used as fuel in cellular respiration they just take a different pathway than glucose.
Explanation:
an organism with two of the same alleles for a particular trait is said to be?
Answer:
An Organism with two similar alleles is a Hom ozygous organism.
Explain Newton's Laws of Motion and how it applies to football, roller skating, soccer, or choose your own examples. Must be three examples.
Answer:
1. If you kick a soccer ball and don't consider friction or air resistance, it would continue non stop until an opposite force acts on it.
2. Pushing a chair has the force of the chair acting on you which you feel as resistance and your force which moves the chair.
3. When air rushes out of a ballon, the air rushes downward and the opposite reaction is that the ballon flies up.
Which food chain correctly shows the direction that energy and matter can flow through a temperate forest ecosystem?
a) fruit > insect > sparrow > hawk
b) hawk > fruit > insect > sparrow
c) insect > sparrow > hawk > fruit
d) insect > hawk > fruit > sparrow
Answer:
Fruit comes from plants, which are producers. Insects are primary consumers, sparrows are secondary consumers, and hawks are tertiary consumers.
Explanation:
Hope this helps.
Which word helps clarify the meaning of the word invertebrates?
Answer:
Animal
Explanation:
Educated guess and got it right
Invertebrates are the classification of the Animalia that have species with no backbones. Animals are the word that clarifies the meaning of invertebrates. Thus, option D is correct.
What are Invertebrates?
Invertebrates are animals that lack a backbone or a vertebral column, unlike vertebrates. They are best described by animals as they are precisely their characteristic and is not seen in plants or other species. They are cold-blooded that include echinoderms, mollusks, arthropods, etc.
Therefore, animals clarify the meaning of invertebrates.
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The complete question is attached to the image below.
Which factors would most likely affect the
weather on a small, flat island in the ocean?
Select all that apply.
A. The formation of dry air masses
B. Ocean surface currents
C. The formation of humid air masses
D. The rain-shadow effect
Answer:
B. or C.
Explanation:
im pretty sure! I'm in a class like this and I have been studying air masses and air pressure alot!
The processes of transcription and translation are critical pieces of gene expression to produce proteins in all living cells on earth.
Which statements correctly differentiate transcription and translation? More than one statement may apply.
Transcription is the process of synthesizing RNA from DNA, while translation is the process of synthesizing proteins from RNA.
Transcription involves the production of a complementary RNA copy of a DNA sequence, using RNA polymerase and nucleotides. The resulting RNA molecule, called messenger RNA (mRNA), carries genetic information from the DNA in the nucleus to the ribosomes in the cytoplasm.
Translation, on the other hand, involves the reading of the mRNA sequence by ribosomes, which assemble amino acids into a polypeptide chain according to the genetic code. This process involves transfer RNAs (tRNAs) that carry specific amino acids and match them to the codons on the mRNA. Together, transcription and translation enable the transfer of genetic information from DNA to proteins, which perform vital functions in cells.
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--The complete question is, The processes of transcription and translation are critical pieces of gene expression to produce proteins in all living cells on earth. Differentiate transcription and translation?--
Adipose tissue is one of the most hydrated of all tissues in the human body
Answer:
False
Explanation:
Adipose tissue is one of the lease hydratetd of all tissues in the human body.
Adipose tissue is one of the most hydrated of all tissues in the human body and is one of the maximum hydrated of all tissues withinside the human frame.
What is intracellular fluid?The maximum ample cation in intracellular fluid is sodium. Solutes, irrespective of size, are capable of pass freely among booths due to the fact water includes them alongside the osmotic gradients.
Adipose tissue carries approximately 10% of water, even as muscle groups carries approximately 75%. In Netter's Atlas of Human Physiology, frame water is damaged down into the subsequent booths: Intracellular fluid (2/three of frame water) is fluid contained inside cells.
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