The difference between an open and a closed circulatory system is...
Answer:
In the closed circulatory system, blood is confined to a heart and blood vessels, whereas in an open system, hemolymph (blood) moves from a heart through vessels into interconnected spaces called a "hemocoel."
Explanation:
An open circulation the blood is not blood vessels, it instead is pumped into a cavity called Hemocoel.
A closed circulatory system, the blood is pumped through vessels SEPARATE from the interstitial fluid of the body.
What causes the equinox to occur twice a year?
Answer:
tilt and orbit of the Earth combine in a way that the axis is inclined away from the sun
Explanation:
We have an equinox twice a year. The Spring and Fall equinox. An equinox occurs when the tilt of the Earth's axis and Earth's orbit around the sun combine in such a way that the axis is inclined away from the sun.
specificity of communication by the nervous system compared to the endocrine system
Answer:
Like the nervous system, the endocrine system is a regulatory system. However, instead of using electrical impulses for signaling, it produces and uses chemical signals called hormones, which travel through the bloodstream and control the actions of cells and organs.
Explanation:
Hope it helps
In pea plants, height is determined by an allele for tallness (T) that is dominant over an allele for shortness (t). What is the probability that a gamete, selected at random, would carry the short allele (t) in a cross of heterozygous tall pea plants?
Explanation:
The Answer Is
Hope It Helps U
Brainliest
Why is it important that a protein keeps its shape?
The shape of a protein keeps its amino acids from changing sequence.
The shape of a protein keeps it from breaking up into loose amino acids.
The shape of a protein allows it to perform several different jobs.
The shape of a protein allows it to perform its particular job
How are the smallest ocean waves produced?
A.Weak winds that blow for short periods of time over great distances.
B.Weak winds that blow for long periods of time over small distances.
C.Weak winds that blow for short periods of time over small distances
D.Weak winds that blow for a long time over a great distance.
Answer: the answer is C
Explanation:
Answer:
c!
Explanation:
For a wave to effectively be produced there need to be large wind, long period of time and a large distance of water. If they are all reduced, then there would be a reduction in the intensity of the wave.
hope this helps!
What did you find difficult about matching the choromosomes
Answer:
by blocking cells in mitosis and staining the condensed chromosomes Giemsa dye.
Explanation:
Can't explain.
The peppered moth is a classic example of natural selection in the
environment. The peppered moth has three color patterns: light, medium,
and dark. Prior to the industrial revolution, the light moth, which could
better blend with the tree bark, was the most prevalent. After
industrialization, the darker moth population quickly increased since the
tree bark became darker. Which of the following BEST describes why the
change in population occurred so quickly?*
Mutations took place in DNA.
O Different species of moths interbred.
Industrialization took place in a short period of time.
O Color variations were already present in living moths
Answer:
Color variations were already present in living moths.
Explanation:
Trust (hopefully)
what are the reason for which people deposit money in a bank ?
Which of the following substances is a strong acid? A. Sea Water. B. Pure water. C. Ammonia D. Battery acid
Which phylum contains more than 10,000 living species?
Porifera
Echinodermata
Cnidaria
Answer:
Cnidaria
Explanation:
what is most likely to happen when water loses heat
Answer:
it will turn to ice
Explanation:
the potential energy in the molecules is reduced and they start to move alot slower, eventually they stick together and form ice
In eukaryotes, chromosomes are protected by what cellular
structure?
a nuclear membrane
b antibodies
C cytoplasm
d ribosomes
What is produced during transcription
1. RNA molecules
2. RNA polymerase
3. DNA molecules
4. proteins
Answer:
2. RNA polymerase i hope this is correct
Which would conserve more energy, if all humans ate only vegetables or ate only meat?
I think it's b because it seems obvious
Some species of hares are brown most of the year, but change color to white in the winter. This allows them to blend in
through the seasons.
Where are these organisms adapted to live?
• deciduous forests
• desert
• tropical rain forests
savanna
Answer:
Deciduous forests
Explanation:
Answer:
A
Explanation:
deciduous forests
I really need help this is due tomorrow and is gonna cause my to fail the class :(
Bacteria that has no membrane-bound organelles and eats other organisms for energy.
The bacteria is
a. a eukaryote.
b. a prokaryote.
C. a plant.
d. an animal.
The breaking down of glucose into two molecules; anaerobic process. Please help
Answer:
glucose is broken down in ten steps to two molecules of pyruvate which then enters the mitochondria where it is oxidized through the tricaboxylic acid cycle to carbon dioxide and water
Most fossilized bones have undergone the process of
A)unaltered preservation
B)carbonization
C)casting
D)perimineralization
Answer:
D. Perimineralization
Explanation:
After a bone, wood fragment, or shell is buried in sediment, it may be exposed to mineral-rich water that moves through the sediment. This water will deposit minerals, typically silica, into empty spaces, producing a fossil.
The DNA code for normal hemoglobin contains the following segment:
TGC-GGA-CTC-CTC
Which of these is the m-RNA code for this segment of DNA?
A) UGC-GGA-CUC-CUC
B) ACG-CCU-GAG-GAG
ACG-CCT-GGA-GAA
D) TCC-GGT-CTC-CTC
The messenger RNA (mRNA) code for this segment of the hemoglobin DNA gene is ACG-CCU-GAG-GAG (Option B is correct).
What is mRNA?The messenger RNA (mRNA) is a template created during transcription, which is used to generate a protein.
A specific fragment of DNA is used to create this template (mRNA) by transcription.In RNA, Thymine nucleotide bases are replaced by Uracil nucleotide bases.In conclusion, the messenger RNA (mRNA) code for this segment of the hemoglobin DNA gene is ACG-CCU-GAG-GAG (Option B is correct).
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https://brainly.com/question/24885193
In base pairing for the translation of DNA to mRNA, which nitrogen base complements Adenine?
Answer:
Adenine and thymine form base pairs that are held together by two bonds, while cytosine and guanine form base pairs that are held together by three bonds. Bases that bond together are known as complementary. During transcription, DNA is converted to messenger RNA (mRNA) by an enzyme called RNA polymerase.
Answer:
Adenine and thymine form base pairs that are held together by two bonds, while cytosine and guanine form base pairs that are held together by three bonds. Bases that bond together are known as complementary. During transcription, DNA is converted to messenger RNA (mRNA) by an enzyme called RNA polymerase.
Explanation:
A person who is interested in the hypothalamus and its functions might pursue a career in
neuroscience
gene therapy
endocrinology
sports medicine
Answer correctly Please this is my first time hehe
This is an image of an electrocardiogram Which statement describes the condition of the heart at the point indicated in the electrocardiogram? The muscles of the atria depolarize. The muscles of the ventricles depolarize. The muscles of the atria repolarize. The muscles of the ventricles repolarize.
Answer:
C
Explanation:
Answer: the muscles of the ventricles repolarize.
A mutation is defined as change in the?
A. nucleotide sequence of DNA
B. activation of a gene
C. nucleotide sequence of RNA
Answer:
a
Explanation:
can you help me with my question Which of the following best explains "political bias?" A. How to register to vote. B. What topics decide how you vote. C. Not caring about voting in elections.
Answer:
A. nucleotide sequence of DNA
Explanation:
A mutation happens in the when their is a change in a genetic sequence. This happens in the transferring of mRNA to DNA.
If I'm wrong I'm sorry
Match
Solids
Liquids
Gases
Change of state of Matter
Particles are
tightly packed, but are
far enough apart to
slide over one
1 another
Occurs due to heating or
cooling of a substance (adding or
* removing energy)
have an
indefinite shape
and an indefinite
volume
Particles
tightly packed, vibrating
about a fixed position
Answer:
Particles are tightly packed, but are far enough apart to slide over one 1 another- Liquid
Occurs due to heating or cooling of a substance (adding or * removing energy)- Change of State of Matter
have an indefinite shape and an indefinite volume- Gas
Particles tightly packed, vibrating about a fixed position- Solid
Explanation:
Which one of the following is made of angular gravel clasts?
a. conglomerate
b. sandstone
c. breccia
d. mudstone
Answer:
c) Breccia
HOPE IT HELPS!!
how does a tape worm feed
Answer:
The tapeworm feeds off the food that the host is digesting.
Explanation:
Tapeworms get into the body when a person eats or drinks something that's infected with a worm or its eggs. Once inside the body, the tapeworm head attaches to the inner wall of the intestines.
Answer:
Tapeworms do not have a digestive tract. Instead, they absorb their nutrients from the gut contents of the host directly through their outside surface, tegument. New proglottids are constantly formed in the neck of the worm and along the length of the tapeworm they mature.
Explanation:
Sometimes when a crocodile keeps its mouth open, a bird called the Egyptian plorer will fly into the mouth of the crocodile. The plover will eat food stuck betucea the test of the coole The create bene by tang the teeth deaned. Which of the relationships described below is most similar to the relationship between the crocodile and the plover?
A.type of bird in Africa eats blood-sucking insects off large mammals
B.Foxes and eagles live in the same habitat and have similar types of prey, such as squirrels, in common
C.Ticks are small blood-sucking insets that typically feed off small mammals
D.Barnacles, a non-moving sea creature, rely on ocean currents for food. Some barnacles attach to the outside of a whale's thick skin and gain exposure to more food sources
Answer:
A. Type of bird in Africa eats blood-sucking insects off large mammals.
Explanation:
Symbiosis
2.
What type of sugar molecule is found in a DNA molecule?
Explanation:
deoxyribose
it's a carbon based sugar molecule
Answer:
I think the answer is Necleotide
Choose the image most likely to support this text: "Two black holes can merge into one giant one."
Answer:
the 3rd pic did the same thing
Explanation:
Answer: Its C
Explanation: cause i just did it