deposits of coal have been found beneath the ice of Antarctica. But coal only forms from warm swamps. How can coal be found so near the South Pole?
Which surface was warmer during the month of October? The pond or the sidewalk?
Answer:
The pond was warmer during the month of October.
Explanation:
Water has a high specific heat capacity, therefore more heat is required to change its temperature. This is why aquatic life is able to stay alive even when temperatures drop drastically. The sidewalk however, will more than likely adapt to the temperature change quickly as concrete does not have a very high specific heat capacity.
A type of circuit that has only one path is called a —
Group of answer choices
series circuit
parallel circuit
open circuit
closed circuit
The answer is series circuit.
What are some ways you think scientists can affect or utilize the genes of organisms?
Answer:
I'm not quite sure what your looking for
Explanation: scientists can take the genes of one successful crop, animal, etc, and insert that gene into future things so all offspring will be successful. This is called genetically modifying. Another thing scientists can utilize genes for is cloning. There have been ideals of the perfect human for many years and now scientists are trying to alter these genes to have perfect offspring according to your standards.
AGAIN PLEASE DON'T ATTACH A LINK
Which statement best describes a bacterial cell?
А. It contains more than one cell.
B. It is a complete organism.
С. It is part of a larger organism.
D. It contains different kinds of cells.
If two parents have type O blood, what are the possible blood types of their children?
Answer:
O
Explanation:
It would be type O, because both parents have type O. Whether it was positive (+) or negative (-) would depend on both parents.
Wheat, barely ,oats and rice are examples of what type of crop ?
Answer:
Cereal crops
Explanation:
Answer:
Cereal crops
Explanation:
hope it helps :)
All compounds that have been found to be mutagenic in the Ames test are also carcinogenic. View Available Hint(s) All compounds that have been found to be mutagenic in the Ames test are also carcinogenic. True False Submit Part B Why are liver extracts used in the Ames test? View Available Hint(s) Why are liver extracts used in the Ames test? A liver extract is necessary for the bacteria to produce histidine revertants. Liver enzymes activate the bacterial enzymes. Liver enzymes may activate some innocuous compounds, making them mutagenic. The bacteria require the nutrients present in the liver extract for growth.
Answer:
Part A: False
Part B: Liver enzymes may activate some innocuous compounds, making them mutagenic
Explanation:
The Ames test, also known as Salmonella typhimurium reverse mutation assay, is a bacterial short-term technique used to identify if a particular chemical compound may cause mutations in target cells. It has been shown that there exists a positive correlation between carcinogenicity and mutagenicity in the Ames test, but this correlation is not absolute. In the Ames test, a rat liver homogenate (containing liver enzymes) can be added in order to identify substances that are not mutagenic themselves but are metabolized in order to form a mutagen (e.g., benzopyrene).
Carbon dioxide enters a plant through pores (openings) called the
A. stomata.
B. cuticle.
C. veins.
A student claims that the only difference between prokaryotic cells and eukaryotic cells is that
eukaryotic cells have a nucleus, but prokaryotic cells do not. What is wrong with this claim?
The description of the cell types is incorrect.
Prokaryotic cells have a nucleus, and eukaryotic cells do not.
The description of the cell types is incorrect. Both prokaryotic and eukaryotic cells have a nucleus.
There is another difference between the cell types. Eukaryotic cells have membrane-bound organelles, but
prokaryotic cells do not.
There is another difference between the cell types. Eukaryotic cells have a cell membrane, but prokaryotic
cells have a cell wall instead.
Explanation:
Eukaryotic cells:
• There is a well defined nucleus
• They are membrane bounded cell organelles like chloroplast, golgi bodies, mitochondria.
Prokaryotic cells:
• The nucleus are not well defined
• Cell organelles are not bounded by membrane
Body systems interact with one another to carry out life processes. Movement is an important function in animals. Which body
systems work with the skeletal system to enable voluntary movement of the organism? Choose ALL that apply.
A)
nervous system
B)
muscular system
C)
endocrine system
D)
lymphatic system
E)
circulatory system
Answer:
B
Explanation:
Because it's the muscle helps the body system with the skeletal system to enable voluntary movement of the organism
Why is the interdependence of the worms and plants an example of commensalism?
Answer: In commensalism, one organism benefits, and the other neither benefits nor is harmed. In this case, plants benefited, and worms seemed neither to benefit nor be harmed.
Explanation -
DNA is wrapped around
and condensed into chromosomes.
• Genes are used as a set of instructions to produce proteins.
Proteins affect the
and function of organisms.
Chromosome
Answer:
- DNA is wrapped around nucleosomes and condensed into chromosomes.
- Proteins affect the traits and function of organisms.
Explanation:
Nucleosomes are the basic unit of compaction of DNA. Each nucleosome is composed of ~148 bp double-stranded DNA and an octamer of histone proteins, which include two molecules of each core histone: H2A, H2B, H3 and H4. Subsequently, nucleosomes are packaged into chromatin fibers so they can be densely compacted into chromosomes. On the other hand, proteins are molecules that play important (structural and enzymatic) functions in a cell. These proteins may affect the structure/function of a cell, thereby affecting a certain characteristic/trait to develop.
What is the relationship between the rock cycle and the plate tectonics?
Answer: The metamorphic rocks can erode into sedimentary rocks which can turn into igneous rock. Metamorphic rocks in the rock cycle is driven by tectonic plates.
Explanation:
If forests are strictly managed according to the maximum sustainable yield model, some biodiversity would still be lost because ________. species whose habitat depends on mature trees in the top canopy layer will be excluded forests are more susceptible to herbivore damage habitats for nesting birds are lost all the trees are of mature size leaving no room for new seedlings nearly all predators will be excluded
Answer: species whose habitat depends on mature trees in the top canopy layer will be excluded
Explanation:
The maximum sustainable yield refers to a biological resource maximum usable production which can be gotten at a particular period of time without the ability of the resource maintaining that particular production level reduced.
If forests are strictly managed according to this model, some biodiversity would still be lost due to the fact that species whose habitat depends on mature trees in the top canopy layer will be excluded.
here is the two questions pls answer as fast as you can
Answer:
I don't see a question, all i see is a blank page
Explanation:
An eastern screech owl, a carnivore, might compete with which organism most intensely for resources?
A. hawk (secondary consumer)
B. mountain lion (secondary consumer)
C. wren (primary consumer)
D. mouse (primary consumer)
Answer:
The answer is A
Explanation:
Let us take a look at the owl, it is a kind of carnivore, so it must be a secondary consumer(btw, primary consumers are herbivores). So we can eliminate answer C and D. The competition between the same species for this situation is the most intense one, so we can eliminate answer B as well, since hawk and owl are all birds. So the answer is A.
Hope this will help❤️
Match the vocabulary term to the correct definition
HELP WILL MARK BRAINLIST answer IF U DO IT THE RIGHT WAY
WORTH 50% of GRADE HELP!!
Earth or the moon gets in the way of the
sun's light
Moon moves through Earth's shadow
Moon passes directly between the Sun
and Earth, preventing sunlight from
reaching Earth
Light from the Sun is partially blocked by
the Earth
Light from the Sun is completely blocked
by the Earth
Answer:
1 B
2 D
3 A
4 E
5 C
100 POINTS
I am asking 2 questions because im giving so many points...
1. Describe the first hypothesis that scientists have about blindness in the Mexican tetra. Be sure to discuss pleiotropy in your answer.\
2. One effect of the Hedgehog gene is to make cave tetras go blind. What is another effect it might have?
Answer:
these are odd questions....
Explanation:
1. they are curious about how they get blind
2. the quills
Answer:
1.The first hypothesis is that blindness gives the tetra some sort of evolutionary advantage. That advantage might be the result of pleiotropy, which is when multiple effects are caused by the same mutation in one gene. Scientists think that the mutation that causes blindness in the tetra might also cause a "seemingly unrelated change in the fish that is beneficial."
2. Another effect it might have is to improve cave tetras' sense of smell.
Explanation:
i said so
dead cells are removed from the Dermis by phagocytosis. true or false?
Place the rock layers in order from oldest to youngest in the blanks below. Type the letters as they
are shown.
Answer:
C
Explanation:
The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. So the full sequence of events is as follows: Layer C formed.
If humans began hunting seals MORE, what would happen to the population of Penguins and Krill?
Answer:
the population of penguins and krill will go up
If a star is small, it will likely last___ a large star.
for as long as
longer than
for less time than
Answer:
Longer then is the answerrrrr
A planet has less mass than a galaxy and more mass than the star it orbits.
True
False
Answer: A moon has less mass than a star and more mass than the planet it orbits. A planet has less mass than a galaxy and more mass than the star it orbits. A galaxy has less mass than a moon and more mass than a planet. A star has less mass than a galaxy and more mass than a planet.
Explanation:
ANSWER IS FALSE
Explain, using complete sentences, the trend in levels of blood glucose from 11:00 a.m. to 10:00 p.m.
In your answer use the following terms:
[Feedback mechanism] [stimulus] [response] [positive or negative]
Answer:insulin and glucose
5 minitessssssssssss
Answer:
The answer is A.
Bacteria, which are prokaryotic cells are single-celled entities that are primitive in structure and function as they lack a membrane-bound nucleus and other organelles.
Eukaryotic cells are the cells that are complex in structure and function as they have a membrane-bound well-defined nucleus and other membrane-bound organelles.
What would happen if bees did not make it back to their hive? What is the evidence?
(No LINK)
During meiosis, homologous chromosomes can exchange DNA in a process as shown in the diagram
below known as
Pls I need help thank you. And pls don’t send me a link.
is this karyotype from a male or female? how do you know ?
Also do they have down syndrome? How?
Answer:
Its a male, without down syndrome
Explanation:
The fact that it's a male is indicated from the presence of the Y chromosome. In order for this man to have down syndrome, he would have had 3 chromosomes at 21, which he doesnt, meaning he doesnt have down.