Answer:
B
Explanation:
A is just false- there is no bacteria or other organisms inside cells.
C is incorrect because cells have lots of different things inside them
D is only referring to the cytoplasm in cells.
Which release of greenhouse gases can be attributed to human activities?
A. Manufacturing plants
B. Volcanic eruptions
C. Solar cycles
D. Wildfires
Dr. Tanaka discovered a new virus. The virus has a single strand of a nucleic acid, but she does not know if it is DNA or RNA. After running tests, she concludes that it is DNA. Which of the following would lead her to that conclusion?
A. It contains cytosine.
B. It contains thymine.
C. It contains uracil
D. It contains adenine
Answer:
Explanation:
I believe it is b
Dr. Tanaka can conclude that the genetic material of this virus is DNA because it contains thymine (Option B).
In DNA, there are four types of nucleotides, each one containing one different nitrogenous base.
These four nitrogenous bases are Adenine, Guanine, Cytosine and Thymine.
Moreover, in RNA, Uracil bases replace Thymine bases.
In conclusion, Dr. Tanaka can conclude that the genetic material of this virus is DNA because it contains thymine (Option B).
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All the genetic material needed to grow a human is present in the ___________ of its cells.
Question 1 options:
cytoplasm
nuclei
lysosomes
endoplasmic reticulum
The answer is nuclei
Which of the following would provide physical evidence that could change the divisions on the geologic timeline?
A. the discovery of ancient ruins buried deep in the ocean floor sediments
B. the discovery of fossilized microorganisms in ocean floor sediments
C. the discovery of evidence of humans who lived long ago
D. the discovery of evidence of different kinds of rocks that recently appeared
Answer:
b
Explanation:
Physical evidence that could alter the divisions on the geological timeline would be provided by the discovery of preserved microbes in ocean floor strata. So, the correct option is B.
What is Geological timeline?The Earth's rock record serves as the foundation for the geologic time scale, also known as the geological time scale. It is a method of temporal dating that makes use of geochronology and chrono stratigraphy. Earth scientists use it mostly to explain the sequence and connections between events in the Earth's geologic past.
The first animal and plant life on Earth, the emergence of mountains on Earth, and the destruction of the dinosaurs are just a few instances of events that are recorded on the geologic time scale.
The finding of preserved microorganisms in ocean floor strata would provide tangible proof that could change the divisions on the geological timeline.
Therefore, the correct option is B.
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List the 6 levels of ecological organization – starting with
the term used for an individual living thing, and ending
with the term that represents what the Earth is. How is the
organism you chose in the last lesson a part of each of the
levels? Example: LION- one lion is an individual; A group
of LIONS are a population, etc. (6 pts)
Answer:
organism, population, communities, ecosystem, and biome; excluding biosphere from the list.....or population, community, ecosystem, and biosphere.
Explanation:
brainliest???
The six levels of ecological organization include organism, population, community, ecosystem, biome, and biosphere. These represent levels from an individual living thing to the broadest scope of all ecosystems on Earth. Any organism you choose will fit into these levels in a similar manner.
Explanation:The six levels of ecological organization, starting from the smallest unit to the largest, are:
Organism: This is an individual living thing, such as a lion. Population: This refers to a group of the same species that lives in the same area, like a pride of lions in the same savannah. Community: This includes all the different species that live together in a habitat, like lions, zebras, and elephants in the savannah. Ecosystem: This constitutes both the living (biotic) and non-living (abiotic) factors of a particular environment. For instance, a savannah ecosystem would include all its animals, plants, weather, and so forth. Biome: This is a major ecological community spread over a large area, for instance the Savannah biome, which has similar weather, animal, and plant life across multiple continents.Biosphere: This is the part of the earth where life exists, including all biomes and ecosystems. Thus, our lion from the earlier example is part of our global biosphere.
The organism you chose in the previous lesson would fit into these levels in a very similar manner to our lion example.
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A.s.a.p!
Select the correct answer.
Which of the following correctly describes how carbohydrates are utilized in the body?
Carbohydrates from the food you eat are broken down to glucose then transported through the blood stream to cells in the
body where they provide energy.
Glucose from food you eat is built into carbohydrates, transported in the blood stream to the cells in the body where they
provide energy.
Carbohydrates from the food you eat are transported through the blood stream to the cells in the body where they provide
energy and create a by-product called glucose.
D.
Carbohydrates from the food you eat provide energy to cells and are then transported through the blood stream to be stored
as glucose.
Answer:
Answer is D
Explanation:
This phylum includes the vertebrates, together with several closely related invertebrates. They are united by having, at some stage in their life, a notochord, a hollow dorsal nerve cord, pharyngeal slits and a muscular tail extending past the anus.
Answer:
Chordates
Explanation:
Chordates (phylum Chordata) include the vertebrates, together with several closely related invertebrates.
In any environment, the 'fittest'organism is the...
Plants that have tube-like structures for water and nutrients to travel up and down from roots to leaves
Answer:
the answer is vascular plants
Explanation:
The question refers to vascular plants, plants with specialized structures for conducting water, nutrients, and sugars. These structures, known as xylem and phloem, allow these plants to grow larger and survive in diverse environments.
Explanation:The student's question relates to plants with tube-like structures, which is a reference to vascular plants. Vascular plants are characterized by the presence of specialized structures for the movement of water and nutrients: the xylem and phloem, collectively known as vascular tissue. The xylem transports water and minerals from the roots to other parts of the plant, while the phloem distributes sugars produced via photosynthesis from the leaves to other parts of the plant.
Examples of vascular plants include trees, shrubs, and flowering plants. This feature allows these plants to grow larger and survive in a multitude of environments.
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Which is not a method that protists
can use to move
cilia
spores
flagella
pseudopods
Incomplete dominance can be observed in snapdragons. Snapdragon flowers
that have two RR alleles have a red phenotype. Snapdragon flowers with arr
have a white phenotype. Snapdragon flowers that are Rr are pink.
11. Fill in the two Punnett squares in diagram at right.
12. This is a non-Mendelian trait, but how could this be different if the trait
was Mendelian?
Incomplete dominance is observed in snapdragons, where the phenotype of the flower is determined by the combination of alleles. The Punnett squares show the possible genotypes and phenotypes of the offspring. If the trait were Mendelian, there would be distinct phenotypic differences between the homozygous genotypes.
Explanation:Incomplete dominance is observed in snapdragons, where the phenotype of the flower is determined by the combination of alleles. In this case, snapdragons with two RR alleles have a red phenotype, those with aa alleles have a white phenotype, and those with Rr alleles have a pink phenotype.
The Punnett squares can be filled out by crossing a RR individual with an rr individual or crossing two Rr individuals. In the first case, all offspring will be Rr (pink phenotype). In the second case, there will be a 1:2:1 ratio of RR:red, Rr:pink, and rr:white offspring.
If the trait were Mendelian, the dominant allele would completely mask the recessive allele, resulting in a clear-cut phenotypic difference between the two homozygous genotypes RR and rr, without any intermediate phenotype.
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What 4-5 elements from the periodic table are necessary in an ecosphere?
Answer:
air, water, life (algae, microorganisms and shrimp) and land (gravel and sea fan)
Explanation:
The EcoSphere is a tiny working model of the Earth. It contains the same essential elements that are found on our planet- air, water, life (algae, microorganisms and shrimp) and land (gravel and sea fan).
in figure 13-1 between which nucleotides is the DNA cut?
(A) ADENINE AND THYMINE
(B) CYTOSINE AND GUANINE
(C) THYMINE AND CYTOSINE
(D) ADENINE AND GUANINE
Answer:
d
Explanation:
because i studied that this will be the ans
1. scientists had identified a pattern in the moths that they thought was important. What was the pattern?
2. The classified identified several factors that could affect populations. One of those factors was abiotic. What are some abiotic factors that you think would be affecting the moth population.
Answer:
1. They had predators both at night and through the day, and that they tried to hide and rest on trees but were not very hidden.
2. The chemicals released by the female moths to mate and lay eggs is an important abiotic factor in which affected the population. The more the chemical was released, the more it led to eggs being laid and reproducing.
Explanation:
The moth symbolizes rebirth, change, transformation, resurrection, and the power of regeneration in Native American mythology. In fact, butterflies and moths both hold a significant position in the Native American culture.
How did moths evolve?
Scientists have long attributed these insects' rich variety to their close connections with other organisms. Butterflies, they hypothesized, evolved in tandem with the plants they fed on, and moths developed sophisticated defense mechanisms in response to bats, their main predators.
What is the cycle of a moth?There are four stages of the moth life cycle: eggs, larvae, pupa/cocoon, and adult. Each stage represents a significant step in a moth's lifespan.
What was causing the change in the moths?Genetic ChangesMoths passed their color to the next generation. Eggs from light moths developed into light moths and dark moth eggs turned to dark adults. The dark color was caused by a mutation in the DNA of a single moth, and the mutated gene had been passed to all its offspring.
How abiotic factors affect moth populations?Environmental factors that influence populations are divided into two categories – abiotic and biotic factors. Abiotic factors refer to the non-living physical and chemical elements found in an ecosystem such as rainfall, temperature, pH, sunlight, shelter and day length.
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ANSWER PLZ ASAP!!!!
which of the following is not generally considered a threat to endangered species
Answer:
B.) Competition for mates
Explanation:
Generally, species become endangered in the first place has to do with humans. If you analyze the other options, they each typically are caused by humans.
Poaching is illegal hunting or capturing of animals (endangered or not)
Clear-cutting is the same as deforestation, and causes habitat loss
Introduction of non-native species is typically caused by people who bring pets from other countries back to their native countries.
A competition for mates isn't normally something that causes a species to go endangered or extinct. The other options are much more threatening to this!
write a paragraph about ocean currents
Answer:
Ocean currents are basically water wind.
Explanation:
The light-independent reactions in plants produce
a. ATP
b. COM
C.
simple sugars
proteins
Answer:
the answer is ATP
Explanation:
!00 Pointzzzzzzzz!!!
See the photo then answer
Answer:
B
Explanation:
Velocity is the rate of motion, speed or action.
2 Points
Which habitat receives the least amount of rain?
O
A. Tropical rain forest
O
B. Grassland
O
C. Desert
O
D. Deciduous forest
Answer:
Desert
Explanation:
if you even just look it up out of all habitats, desert is the option.
Deserts are found commonly near the equator, they are excruciatingly hot in the day, and freezing cold at night. They get little rain due to the heat or cold.
Definitely not rain forest, rain IN THE NAME
Grasslands in the US get rain fairly frequently. The graslands on the savanna have rain seasons too.
Deciduous forest is kind of the average pine and oak forest so rain does occur
i hope this helps u
pls give a brainliest and a thx ;)
A biologist wishes to take a useful gene found in penguins and introduce it into some bacterial cells. Her experimental procedure is given below.
Use a restriction enzyme to cut a gene out of the penguin DNA.
Use a restriction enzyme to cut open a plasmid.
Treat the plasmid with DNA ligase.
Treat the plasmid with DNA polymerase.
Introduce the plasmid into bacterial cells.
A step is missing. Where should it go in this procedure?
“Mix the desired gene and plasmid together” should go after step 5.
“Mix the desired gene and plasmid together” should go between steps 3 and 4.
“Mix the desired gene and plasmid together” should be the first step.
“Mix the desired gene and plasmid together” should go between steps 2 and 3.
Answer:
The last one IM like 80% sure its the answer
Explanation:
Final answer:
The missing step, "Mix the desired gene and plasmid together," should be placed between steps 2 and 3 in the procedure, after the plasmid has been cut and before it is treated with DNA ligase.
Explanation:
The step "Mix the desired gene and plasmid together" should take place after the plasmid has been cut with a restriction enzyme and before it is treated with DNA ligase. The correct sequence of steps in the procedure would be:
Use a restriction enzyme to cut a gene out of the penguin's DNA.Use a restriction enzyme to cut open a plasmid.Mix the desired gene and plasmid together.Treat the plasmid with DNA ligase to join the gene of interest to the plasmid DNA.Treat the plasmid with DNA polymerase if necessary.Introduce the plasmid into bacterial cells.This sequence ensures that after the plasmid is opened, the gene of interest is present for ligation, creating a recombinant plasmid to be introduced into the bacteria for gene expression.
What ability have many cave fishes lost
Answer:
most likely sight
Explanation: it is very dark in caves anyways, and their pupils would need to adjust to light, and of they have been living in a cave for a while, they would have adapted larger pupils to take in any possible light.
Answer:
the ablility to see
Explanation:
Games like tag and hide and seek are examples of:
A: Constructive play
B: Fantasy play
C: Creative play
D: Motor play
E: Parallel play
Answer:
D: Motor play
Explanation:
There are various games that could be play among children such as
: Constructive play
Fantasy play, Creative play, Motor play and Parallel play
A motor skill is associated with muscle, There are different fitness components associated with motor skill games which are speed, agility,coordination and others. Motor games can be carried out
when one's brain, nervous system and muscles work together to move parts the part of one's body
Which of the following best describes the use of a non–renewable resource? (2 points)
a. California has several power plants that use heat from the Earth to generate electricity.
b. In the state of Texas, you can find miles of windmills that are used to generate electricity.
c. Oil is burned to heat water into steam in order to turn turbines that generate electricity.
d. The electronic signs along the highway are run by solar power.
PLEASE HELP
Answer:
c
Explanation:
the answer is c because oil is a non renewable resource due to the time it takes to make
Natural gas is unquestionably a much cleaner non-renewable energy source than coal, but it still contributes to almost a third of the nation's greenhouse gas emissions. Thus, option C is correct.
What is the significance of non-renewable resource?A resource is nonrenewable if it is consumed more quickly than it can replenish. A nonrenewable resource's supply is limited, which means it is difficult to refill. The Earth itself is used to harvest non-renewable resources.
Nuclear power, natural gas, coal, and oil are examples of nonrenewable energy sources. The fact that we now rely on these resources to provide the majority of our energy needs makes the fact that they cannot be replenished after they are depleted a serious issue for humanity.
Therefore, oil is burned to heat water into steam in order to turn turbines that generate electricity, best describes the use of a non-renewable resource.
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Desertification may be caused by
water pollution
smog
rain
overgrazing
Answer:
Water pollution
Explanation:
Polluted water can lead to crops dying and dehydrated, leading to desertification.
how do specialized cells within an organism help the organism perform the essential function of life
Answer:
Systems of specialized cells within organisms help them perform the essential functions of life, which involve chemical reactions that take place between different types of molecules, such as water, proteins, carbohydrates, lipids, and nucleic acids. All cells contain genetic information in the form of DNA molecules.
Explanation: :)
If there is less space for natural ecosystems, then _____ may happen to plants and animals living in those ecosystems. *
the first person will be the brainliest
I believe that death will be the result.
1. Plants produce glucose and oxygen during the process of
absorbs solar radiation and reradiates it to Earth's
2. Earth's
surface.
Key Concepts:
Answer:
Plants produce oxygen gas and glucose molecule during the process of photosynthesis by absorbing radiation of the sun.
Explanation:
Photosynthesis is a process in which glucose and oxygen are produced by the combination of carbondioxide and water in the presence of sunlight. Carbondioxode is taken in the leaves through stomata and water is absorbed by the plant from the soil. When these two substances combine in the presence of sunlight produces glucose and oxygen.
Which of these is a reason that we should perhaps be using more nuclear energy?
A.
The technology used in nuclear power plants is used in other industries.
B.
It does not contribute to atmospheric (air) pollution.
C.
Nuclear power is more efficient (more energy per mass) than other sources.
D.
All of these.
Answer:
b
Explanation:
Which of the following answer correctly describe DNA. There is more than one correct answer.
Bases are adenine, uracil, cytosine and guanine.
Bases are adenine, thymine, cytosine and guanine.
Single helix
Sugar is deoxyribose
Sugar is ribose
Double helix
Answer:
the second, fouth, and last
Explanation:
Double helix
Sugar is deoxyribose
Bases are adenine, thymine, cytosine and guanine.
those are true
why is homeostasis important to organisms
Answer:
maintaining homeostasis is important is because single- celled organisms rely on it so it can carry out all the functions necessary for life.