It is false that oxygen-rich blood is carried through pulmonary arteries from the lungs to the heart.
What is pulmonary artery?The two principal arteries leaving the right ventricle of the heart are known as the pulmonary arteries. Low-oxygen blood is seen in this lower chamber of the heart. This blood travels to the lungs through the pulmonary arteries.
The middle mediastinum contains the main pulmonary artery, as well as the pulmonary arteries that follow on the right and left. They emerge from the four chambered heart's right ventricle and carry blood to the lungs.
Right side of heart sends deoxygenated blood to pulmonary artery. Nature has made it such that this blood reaches the lungs where carbon dioxide can be released and then oxygen can be loaded.
It is true that all arteries convey oxygenated blood, with the exception of the pulmonary artery.
Thus, the given statement is false.
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What group of Echinoderms has penta-radial symmetry?
A.Sand dollar
B. Sea Cucumber
C.Sea Star
D. Sea Urchin
E. All of the above
Answer is E
Examples of Pentaradial Symmetry. In the animal
kingdom, there is only one known phylum that exhibits pentaradial symmetry, and that's the Phylum Echinodermata. Echinoderms include sea stars (or starfish), sea urchins, sea lilies, sand dollars, and sea cucumbers.
Please look at the photo and help me ASAP
Answer:
1 red, 2 pink, 1 white
Tall (T) is the dominant allele in pea plants, while short (t) is recessive. Which are the genotypes of a tall plant?
Help!!!!!
Answer:
d
Explanation:
A dominant always masks a recessive characteristic in a genotype, so Tt is a tall plant. TT has two dominant traits, so it is also tall.
How are mitosis and meiosis similar?
A.
both require DNA replication
B.
both have two cell divisions
C.
both produce gametes
D.
both involve crossing over
what is the difference between mitosis and meiosis?
Answer:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Why is it important to center the object you want to look at in your field of view before changing to a higher magnification objective lens? A. So the object is still in your field of view at the higher magnification. B. So you can always see the entire object at the higher magnification. C. So you do not damage the higher magnification objective lens.
Answer:
B. So you can always see the entire object at the higher magnification
Explanation:
A microscope is used to view objects smaller than the naked or unaided eyes can see. The objective lens, in conjunction with the occular or eye lens, is used to achieve this purpose. The objective lens are of different magnifications as follows: 10X, 40X, 100X etc.
However, as the magnification increases i.e. higher objective, the object in the field of view becomes smaller and less focused. Hence, the object in the field of view must first be centered at a lower magnification/objective lens before changing to a higher one in order for the entire object to be seen at a higher magnification.
The muscle in Lanes arm would best be described as which of the following?
Answer:
what following
Explanation:
Place the members of an ecosystem in the correct order
from smallest (or most specific) to the largest:
COMMUNITY
POPULATION ECOSYSTEM
INDIVIDUAL
Individual, population, community, ecosystem
is a structure that the squid can force water through for movement by
propulsion. This is also the location where waste can exit as well as ink
What cell tissue helps animals move?
options:
muscular
nervous
connective
Answer:
MUSCLE CELLS also known as Myocytes
Explanation:
the muscle fibers or muscle cells are long tubular cells responsible for moving an organism’s limbs and organs. Muscle cells can be either skeletal muscle cells, cardiac muscle cells or smooth muscle cells
help guysssss with my 73 points as plssssss
Answer:
I'm pretty sure it's oil gland hope this helps
The Garden Club of Monck's Corner is conducting a scientific experiment to determine which variety of flower will attract the largest butterfly population. The Garden Club has planted different varieties of flowers in a small garden in front of the town hall to attract the butterflies. The Garden Club will count and record the butterflies on each variety of flower each time they visit the garden.
What is the independent variable in the experiment?
A. variety of flowers planted.
B. location of garden
C. size of garden
D. size of butterfly population
Why are so many station miles used to gather weather data in the United States
Answer:
Why are so many station models used to gather weather data in the United States? Because the country is so large, and Earth's atmosphere is constantly changing, we need data from many stations to make accurate forecasts. ... A barometer is used to measure air pressure.
Explanation:
The outside part of the nucleus is called the _________.
jacket
cytoplasm
RNA
nuclear membrane
Answer:
Cytoplasm
Hope this helps!
Can any body help me plzz
air particles from areas of
Answer:
Size comparisons for PM particles. PM stands for particulate matter (also called particle pollution): the term for a mixture of solid particles and liquid droplets found in the air. Some particles, such as dust, dirt, soot, or smoke, are large or dark enough to be seen with the naked eye.
Explanation:
What is chemical energy? What is mechanical energy? Give an examples. Your answer:
Answer:
Below
Explanation:
Chemical energy is stored chemicals as energy.
Chemical energy is in the food we eat.
Mechanical energy is kinetic and potential energy put together tomake movement.
Example: When bowling the bowling ball has mechanical energy, when the ball hits the pins, mechaincal energyis tranferred to the pins.
Brainilest?
why is a dominant acele called dominant
Answer:
Dominance is a relationship between two alleles of a gene and their associated phenotypes.
A "dominant" allele is dominant to a particular allele of the same gene that can be inferred from the context, but it may be recessive to a third allele, and codominant (both appear in the organism) to a fourth.
good luck, i hope this helps :)
Homologous chromosomes
Definitions
What does homologous chromosome mean?
What is true of all body cells except sex cells?
Answer:
You have it completely right!
Explanation:
The answer is C because the chromosomes are counted by the number of centromeres which are contained on chromosomes and chromatids!
Study of embryos of various organisms to show a common ancestor
because of similarities in development is know as ...
natural selection
speciation
embryology
evolution
PLS HELP AS SOON IS POSSIBLE
Nonnative species can cause serious problems with marine ecosystem biodiversity. The graph shows a summary of the different methods by which invasive species reach new locations based on United States Geological Survey data as of 2016. Based on this information, what recommendation could be made to reduce introductions?
A- Methods should be put in place to reduce the ability of species from escaping from captivity and establishing themselves in new locations.
B- People should take extra care when setting up a home fish tank to be certain that all organisms in it will be properly maintained so that the animals remain healthy and diseases are not spread.
C- Science should more closely study the genetics of the different organisms used to prevent mixing of DNA.
D- Ships should install some form of cleansing mechanisms before releasing their ballast water during transport and should be checked for unintended cargo.
Answer: D
Explanation: 20% of invasive species are introduced by Shipping so checking the ballast tanks in cargo ships would help the most I think
To reduce introductions of Non-native species, ships should install some form of cleansing mechanisms before releasing their ballast water during transport and also check for unintended cargo.
What are non-native species?Non-native species are also called invasive species. They are called so as they are foreign or not indigenous to a particular ecosystem and have been introduced to the said ecosystem by some unnatural methods.
These species show a high capacity for adaptation to their new environment. They quickly multiply and reproduce and therefore increase in population.
This sudden and unnatural increase in their population soon after they are introduced to a new environment will greatly affect the ecosystem of the new environment. The new species will compete with the native organisms of that environment for resources. This may cause the native flora or fauna to become endangered or even extinct.
The accidental introduction of invasive species happens quite often and causes a lot of problems. In a marine ecosystem, it happens a lot due to the ships that travel through a variety of marine regions.
So, ships should install some form of cleansing mechanisms before releasing their ballast water during transport and should be checked for unintended cargo.
Therefore, the correct option is D.
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What is different between lactic acid fermentation and aerobic cellular respiration?
Lactic acid fermentation works
Aerobic cellular respiration uses
Aerobic cellular respiration produces
ATP
Lactic acid fermentation produces
ATP
Explanation:
aerobic respiration process breaks down a single glucose molecule to yield 38 units of the energy storing ATP molecules. For the lactate fermentation, 2 molecules of ATP are produced for every molecule of glucose used.
For Ascomycota, what structure's function is most similar to the function of a mushroom?
a
Ascus.
b
Ascocarp.
c
Antheridium.
d
Archegonium.
e
Ascospore.
Answer:
e. Ascospore
hope this helps
Fernanda is feeling sick and goes to the
doctor. Upon taking a blood sample, the
doctor observes that Fernanda's cells
contain a pathogen that seems to be made
of small cells with no nucleus. What type of
infection does Fernanda have?
bacterial
fungal
none of the above
viral
Answer:
bacterial
Explanation:
A prokaryotic organism is an organism that does not possess a membrane-bound nucleus that houses its genetic material. Organisms grouped under this domain are bacteria, archaebacteia etc.
According to this question, Fernanda goes for a blood sample because she felt sick. The result of the blood sampling shows that the cells of Fernanda contain a pathogen that seems to be made of small cells with no nucleus. This property describes a prokaryotic pathogen. Hence, the infection is most likely to be that of a BACTERIAL INFECTION.
Note that, a fungus is eukaryotic while a virus is considered non-living because it can only replicate in a living host.
What factors can disrupt Earth's systems?
Answer:
Natural disasters and human activity.
Explanation:
write a story of an atom below
Answer:
Democritus who was a Greek philosipher, believed that everything was made from tiny little indesrtuctible and undividable spheres called atoms at 400 B.C.E. Thomson believed that atoms were positively charged spheres of matter with electrons being randomly scattered in them in 1904
Blood, a component of the ____________ , acts as the medium of hormone transportation throughout the body.
Answer:
BODY is the answer
Explanation:
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How does aerobic respiration differ from anaerobic respiration ?
I need long answer, and correctly explained.
Aerobic: Aerobic respiration takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy. (glucose + oxygen -> carbon dioxide + water). Anaerobic respiration also produces energy and uses glucose, but it produces less energy and does not require oxygen.
Hybrid plants are more likely to be sterile than open-pollinated plants.
True
False
Answer: true
Explanation: