Answer:
The heart is at the centre of your circulatory system, which is a network of blood vessels that delivers blood to every part of your body. Blood carries oxygen and other important nutrients that all body organs need to stay healthy and to work properly.
Explanation:
Prokaryotic DNA is:
(Fill in the letters, this is for a crossword)
_ e _ _ _ _ _ _ _
Answer:
Prokaryotic DNA can be found in the cytoplasm whereas eukaryotic DNA is found in the nucleus, enclosed by the nuclear membrane.
Explanation:
Two degrees Celsius is equal to how many degrees Fahrenheit
Explanation:
°F = 1.8°C + 32
°F = 1.8(2) + 32
°F = 3.6 + 32 = 35.6
18. How many elements do not end with the traditional element
suffix of - "ium"?
?
Answer:
38
Explanation:
There are 118 elements and 80 end in ium, meaning 38 do not
Which of these is NOT a form of pollution caused by humans?
A. light
B. chemical contaminants
C. volcanic activity
D. noise
It's volcanic activity.
Explanation:
Volcanic Activity
Do you get your electricity from a utility company or do you have solar/wind/geothermal devices for your electricity??
Answer:
get mine electricity from an utility company
Which answer has two genotypes that will produce the same phenotype? Use complete dominance to answer.
•DD and dd
•Dd and dd
•They're all different.
•DD and Dd
DD and Dd: both produce a dominant trait
In ____ the two chromosomes are always identical
Answer: Sister Chromatids
Explanation:
Because each chromosome was duplicated during the S phase, it now consists of two identical copies called sister chromatids that are attached at a common center point called the centromere.
I hope this helped! :)
Which of these is a reason why there are more photosynthetic plants in an ecosystem than mammals
that feed on them?
A. Mammals are on the same trophic level as photosynthetic plants.
B. Plants convert all of their energy into a form that is unusable to mammals.
C. Mammals provide only 10% of their energy to plants.
D. Plants require less energy per organism than the mammals that feed on them.
Answer:
D
Explanation:
Plants require less energy per organism than the mammals that feed on themHence, since less energy is required per photosynthetic plant, more of them are present in an ecosystemClarify the role of neuron when one suddenly touch the hot body?
What could happen to a species if the environment changes causing it to become less well adapted to its environment?
A. The species will have less competition.
B. The species may become extinct.
C. The species is more likely to survive and reproduce.
D. There will be more variation within the species.
Answer:
C
Explanation:
what directs light rays into the eye
Answer:The cornea
Explanation:The cornea directs light rays into the eye and helps focus them on the light-sensitive retina at the back of the eye, providing sharp, clear vision.
Answer:
Lens
Explanation:
Lens refract light rays on to the retina
5) According to the visual, which three continents, as of 2004, are the largest consumers or energy per capita?
A) Europe, Australia, Asia
B) Europe, Africa, Australia
C;Asia, Europe, North America
D) North America, Europe, Australia
Answer:
the anwer is etiehr c or d
Explanation:
Answer:
D) North America, Europe, Australia
Explanation:
What is the role of cartilage in the spinal column?
The cartilaginous discs between vertebrae absorb and distribute shock and keep the vertebrae from grinding together during movement.
Mention one type of articulation (joint) and where is located.
Explanation:
PIVOT JOINT- between the atlas and axisAny one tell me what is this
Answer: look honestly I am not sure , it is the reptile but if you want a name so it is a lizard . *(lizard)
Explanation: characteristics are that it has a short neck , flexible skull , movable eyelids and a long tail . These characteristics were in the picture so probably it is a lizard . Hope my answer is correct . Please give brainliest .
Answer:
Lizard
Explanation:
It is class reptilia
I give out an egg
HELP!! PLEASE. Fill in the missing information for the punnett square below.
Answer:
Bb Bb Bb Bb (All boxes)
Explanation:
Each are dominant
Explain how energy flows in a food chain.
DONE
Which type of bank account typically offers the least (if any) interest?
a)Checking account
b)Savings account
c)Money market account
d)None of the above.
Answer: The answer is Checking account.
Explanation:
What phase(s) of cellular respiration could provide the organism with water?
What might be an example of a neutral relationship in this ecosystems
The interaction is seemingly neutral for one of the organisms. For example, a barnacle attached to a whale can travel thousands of miles collecting and filtering food from the moving water. The whale doesn't seem to be affected by the little hitchhikers.
1) A simplified nitrogen cycle in the ocean is shown here. The movement of nitrogen can impact algae growth, particularly the phytoplankton populations shown here. Large marine mammals, like whales,
move to the surface of the ocean and release nitrogenous wastes in the form of ammonia. Analyze the nitrogen cycle and select the logical explanation on the impact of the phytoplankton populations
A) Phytoplankton populations will increase as nitrogen availability increases at the surface.
B) Phytoplankton populations will decrease because the ammonia is toxic to the phytoplankton,
C) Phytoplankton populations will decrease as nitrogen influx will cause the phytoplankton to be outcompeted by the bacteria.
D) Phytoplankton populations will not increase nor decrease because ammonia is not a usable form of nitrogen for the phytoplankton
The Practice
Answer:A) Phytoplankton populations will increase as nitrogen availability increases at the surface.
Phytoplankton populations will increase as nitrogen availability increases at the surface. So, the correct option is (A).
What is Nitrogen cycle?The nitrogen cycle is defined as the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates in atmospheric, terrestrial and marine ecosystems where nitrogen is transformed through both biological and physical processes.
The steps which are involved in this process:
Nitrogen fixation.Assimilation.Ammonification.Nitrification.Denitrification.Dissimilatory nitrate reduction to ammonium.Anaerobic ammonia oxidation.It is a repeating cycle of processes during which nitrogen moves through both living and non-living things such as the atmosphere, soil, water, plants, animals and bacteria. In order to move to different parts of the cycle, nitrogen must change form. In this cycle , the phytoplankton increases the nitrogen availability.
Thus, Phytoplankton populations will increase as nitrogen availability increases at the surface. So, the correct option is (A).
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Which of the following are true about photosynthesis and cellular respiration. (Select all that apply.)
Question 3 options:
The relationship between them enables life to survive as we know it.
They both take place in human cells.
The products of one process are the reactants of the other.
They both happen only in plants.
Answer:
The relationship between them enables life to survive as we know it. The products of one process are the reactants of the other.
Explanation:
i took the test and got 100% hope this helps
The following statement is true about photosynthesis and cellular respiration: the relationship between them enables life as one knows it to survive, that is the first option.
What are photosynthesis and cellular respiration?Photosynthesis is the process by which green plants, algae, and some bacteria convert sunlight, water, and carbon dioxide into energy-rich organic compounds, such as glucose, and release oxygen into the atmosphere as a byproduct. During photosynthesis, light energy is absorbed by pigments called chlorophyll, and cellular respiration is the process by which all living organisms, including plants, animals, and humans, convert energy-rich organic compounds, such as glucose, into energy that can be used by the cells. During cellular respiration, glucose and oxygen are broken down in the cells to release energy in the form of adenosine triphosphate (ATP), which is the energy currency of the cells.
Hence, the following statement is true about photosynthesis and cellular respiration: the relationship between them enables life to survive as one know it. That is the first option.
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A student is using a microscope to determine if a sample of pond water contains living things.
What observation does she need to record in her laboratory notebook to determine if the sample contains living things?
Answer:
at first she need to take a sample of pound and kept under zhe observation that any partices of living beings. she need to write how she took the sample and how she found sample of living things
Does apoptosis cause cancer?
Answer:
yes it can, its's a much more complicated than we would like to think
what percent of fresh water is available for human consumption ?
Answer:
Only 1%
Explanation:
97% of the earth's water is salt water so we cant drink that. The remaining 3% of the fresh water is contaminated with germs so only 1% of it is ready for consumption :)
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This is a potato plant The potatoes you eat grow underground, attached to the roots. What other function do the roots have?
A) absorb water and nutrients
B) make food by photosynthesis
reproduction and seed-production
D) collecting sunlight
Answer:
A) absorb water and nutrients
Explanation:
usa test i took it
The two polymer strands of a DNA molecule are held together by _____________ bonds between the _____________ of the nucleotides.
Answer:
The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.
Explanation:
please consider as brainlest
The two polymer strands of a DNA molecule are held together by hydrogen bonds between the pairs of bases of the nucleotides.
What is mean by DNA molecule?Deoxyribonucleic acid (abbreviated DNA) is the molecule that carries genetic information for the development and functioning of an organism. DNA is made of two linked strands that wind around each other to resemble a twisted ladder a shape known as a double helix.The two polymer strands of a DNA molecule are held together by hydrogen bonds between the pairs of bases of the nucleotides.
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What trends do you see in the
organisms of the ecosystem if
you decrease CO2? *
Answer:
When carbon dioxide concentrations drop, Earth cools, some water vapor falls out of the atmosphere, and the greenhouse warming caused by water vapor drops.
Explanation:
What is a result of overhunting plant and animal species?
A. Species can become extinct
B. Species can overpopulate
C. Species reproduce faster than they normally would
D. Humans pollute natural habitats
In what respect is a mycelium and a fruiting body similar?
Answer:
Both are made of hyphae.