Answer:
The cell nucleus
Explanation:
(5 points)
12
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Why do bacteria numbers start to decline when treated with antibiotic C but then
begin to increase as time goes on?
15
A) Some bacteria with resistance to antibiotic C were selected for over time.
B) Additional bacteria were added to the experimental group.
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C) Antibiotic C degraded and thus was no longer effective.
D) This is the normal course of bacterial growth no matter which antibiotic is
applied.
Answer:
The correct answer is - option A) Some bacteria with resistance to antibiotic C were selected for overtime.
Explanation:
In the given question it is stated that the bacteria number initially declines when they are treated with antibiotic C but then started to increase as time passes on. It is clear with the given data that initially the number of bacteria declines due to bacteria does not resistant to antibiotic C but after some time some bacteria developed resistance to the antibiotic and were selected and increased overtime.
The correct answer is - option A
Answer 3 to get brainliest on god
the answer is true
Explanation:
because that molecule can plant and help plants
Answer:
I don't know the first 2 but the 3rd one is true.
I know it's nor a lot, but i hope it helps!
2) The beaks of the finches pictured are all adapted to different types of
food sources. Finches that eat mostly insects have thin, pointed beaks
to help them catch their prey while finches that eat more seeds and
nuts have shorter, thicker beaks. If the finch habitat was to
experienced a decline in the insect population due to climate changes,
which of the finches would be most affected?
A) Finch 1
B) Finch 2
C) Finch 3
D) Finch 4
Answer: Finch 1
Explanation:
How do you make a 6.4% NaCl solution?
What two parts of a nucleotide do not ?change throughout the structure of DNA a. Five-Carbon Sugar and Phosphate Group b. Five-Carbon Sugar and Nitrogen Base c. All components remain the same ?throughout the DNA structure d. Phosphate Group and Nitrogen Base
Answer:
a. Five-Carbon Sugar and Phosphate
Explanation:
A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Basically, nucleotide comprises of the following parts;
1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.
2. A phosphate group.
3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.
The two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;
I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.
II. Phosphate: this is the structural backbone that provides support to DNA.
The generation of action potentials in neurons located within the ____________ causes them to secrete their hormones
Answer:
The correct answer is - the hypothalamus.
Explanation:
The generation of action potentials or nerve impulses generated in the neurons within the hypothalamus which result in the secretion of the hormones.
Hypothalamus is the part of the brain that plays many roles in the body including homeostasis by the secretion of the hormones which are released due to the nerve impulses generated in the nerves present within the hypothalamus.
How many polar bodies are formed in a female at the end of meiosis ?
Answer:
Three polar bodies may form during oogenesis. These polar bodies will not form mature gametes. Conversely, four haploid spermatids form during meiosis from the primary spermatocyte.
Explanation:
Hope this helps :)
How do molecules in the cells of the body release energy
Explanation:
Chemical energy is stored in the bonds of sugars. When the bonds of a sugar molecule are broken, a burst of energy is released that the cell can use. Cells can release energy in two basic processes: cellular respiration and fermentation. ... In cells use oxygen to release energy stored in sugars such as glucose.
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Fill in the blank: The variable that is changed by the scientist in an experiment is the ________.
Answer:
Independent variable
Explanation:
Sometimes called the manipulated variable. The part of the experiment that is manipulated or changed by scientists or persons performing the experiment.
A scan of Sam's genome for the 100 most common mutations known to cause RP didn't find anything. How can you explain this result?
Answer:
He is either not carrying the gene for RP or the RP gene has mutated.
Explanation:
RP or Retina Pigmentosa is an eye defect inherited by a person from a parent. The disease is degenerative as the individual gradually loses his sight. It normally starts off as night-blindness and could go as bad as a total loss of sight.
The mutation of both the RPGR and RP2 genes which are responsible for the function and structure of light-reception in the eye accounts for most cases of Retina Pigmentosa disease.
What is being put together, with the help of light, in the process of photosynthesis?
Answer:
oxygen, and energy (ATP)
What simple machines have been used on pyramid? What advantages do they give?
Answer:
inclined plane and lever. advantages they got allowed them to move rocks higher as they built up and to lift heavier objects.
Explain why the cell membrane in animal cells is thicker than in plant cells.
Crickets chirping are an example of which form of communication?
a.
sight
c.
biological
b.
chemicals
d.
sound
Fur seals and sea lions have similar body shapes and features. Based on their anatomy, they seem to have a relatively recent common evolutionary ancestor.
Identify the three main environmental problems.
Answer:
3 main enviornmental problems are pollution, climate change, and deforestation
Explanation:
Answer:
pollution and global warming and climate change
Explanation:
because it's bad for the animals if they eat the trash they will die. human activities have made global warming and climate change a global threat. the rising level of 02 and other greenhouse gases have caused an increases in average global temperatures , extreme weather events and rising sea levels and other negative changes
Fruit production in anthophytes develops from: a. a female reproductive structure b. a male reproductive structure c. both male and female reproductive structures d. photosynthetic signals
Answer:
a. a female reproductive structure
Explanation:
Reproduction can be defined as a biological process which typically involves living organisms producing an offspring.
Basically, there are two (2) methods of reproduction and these are;
I. Sexual reproduction: it involves the combination of the genome (gamete) of a male and female living organism during fertilization.
II. Asexual reproduction: it involves the cloning of a living organism to produce an offspring because there is only a single parent.
Antophyte is the division name for flowering plants and they are considered to be the most successful of all the other division of plants in terms of reproduction.
Division Antophyta are classified into two (2) main categories and these includes;
I. Monocot: this group of flowering plants have a single cotyledon. Some examples of monocots are lilies, corns, grasses etc.
II. Dicot: this group of flowering plants have two cotyledon. Some examples of dicots are beans, peas, peanuts, etc.
Fruit production in anthophytes develops from female reproductive structure known as the ovary. Once the ovary is fertilized by a sperm, they ripen into a fruit.
In which element does an aquatic plant grow in?
Answer:
IRON (FE) As well as enough CO2, aquatic plants need iron and trace elements to survive. Vigorously growing aquatic plants are constantly consuming iron and other trace elements.
Explanation:
How does Earth's position relative to the sun cause the four seasons?
Answer: ANSWER C, Earth axis is tilted with respect to its orbit, so, as it revolves around the Sun its tilt with respect to the sun change, resulting in four season.
Explanation:
Study the punnett square shown here.
What phenotypes will be shown by the offspring?
Answer:
all offspring will show the dominant phenotype for the trait
Explanation:
URGENT PLEASE
!!!!!!!!!!!!!!!!!!!!!!!!!
Bill and Jenny have three children. One of their children has cystic fibrosis, which is a recessive disorder (cc). Neither of the parents has the disorder. PLEASE EXPLAIN EVERYTHING THEY ARE ASKING NEED 100%
Part A: Explain how it is genetically possible that one of their children has cystic fibrosis. (3 points)
Part B: What are the odds that each child produced by Bill and Jenny could have cystic fibrosis? (1 point)
Answer:
Part A: It is possible that one of their children has cystic fibrosis because although neither of the parents has the disorder, both of them could still be carriers.
Part B: There is a 25% chance that one of their children has cystic fibrosis.
Explanation:
Part B: Draw a Punnett square to confirm. Cross Cc and Cc. You should get CC, Cc, Cc, and cc.
[[DUE SOON, 50 POINTS!!]]
In the world of Kings , having a male heir to inherit the throne was very important. King Henry the VIII had several wives executed because they gave birth to daughters. Murdering someone for having daughters was wrong, but was Henry right when he put the blame of gender on his wives. What explanation would you give to support or deny his claims?
Answer:
i hope this helps
Explanation:
i think king Henry was wrong because it was his thought that have a daughter is not good or that daughter can not do anything and it was also not his wife's fault that she gave a birth to a girl
What prevents multiple sperm from fertilizing an egg?
A rabbit population is affected by parasitism and disease, both of which are density-dependent limiting factors. Which statement describes the effects of
parasitism and disease on the rabbits?
O A. Parasites and disease weaken or kill a constant percentage of the rabbit population, regardless of its density.
o B. As the density of the rabbit population increases, parasites and disease weaken or kill a greater percentage of rabbits.
O
C. As the density of the rabbit population increases, parasites and disease weaken or kill a lesser percentage of rabbits.
o
D. Parasites and disease weaken or kill mostly the youngest and oldest rabbits, and not the rabbits of average age.
Answer:
The correct answer is - As the density of the rabbit population increases, parasites and disease weaken or kill a greater percentage of rabbits
Explanation:
Disease and parasitism are types of density-dependent limiting factors that affected or influenced by the change in the population density, In this case, parasitism and disease affect the population of the rabbits.
If the density of the rabbit population increases the both density depending on the limiting factors parasites and disease weaken or ill a greater numbers of rabbit population.
Define the word ecology in
your own words,
Answer:
The branch of biology that deals with the relations of organisms to one another and to their physical surrounding
Explanation:
Ecology:- is the scientific study of the interactions between living creatures, such as people, and their physical surroundings. Individuals, populations, communities, ecosystems, and the biosphere are all considered in ecology. Biogeography, evolutionary biology, genetics, ethology, and natural history are all closely connected fields of ecology.
What do these three objects have in common?
Blind - Expiry - Due
Answer:
Explanation:
their all words
These objects such as the blind, expiration, and due represent the terms used in finance and represent the time period till which they represent
The blind is a bookkeeping system and it does not consist of any additional information regarding the source. The expirer is a time period or the validity to when the product or the item has to expire or will work. The Due is the due date of submission or return of the amount etc. Hence they are related to time.Learn more about the objects has in common.
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How does natural selection explain why some organisms are more likely to survive and reproduce than other organisms?
A. Some organisms inherit traits enabling them to adapt better to the environment.
B. Some organisms acquire traits during their lifetimes that they pass to their offspring.
C. Some organisms do not reproduce as many offspring during their lifetimes.
D. Some organisms die before they reproduce any offspring.
Any heritable characteristic that aids an organism in surviving and reproducing in its environment is referred to as an adaptation. Some organisms are more likely to survive and reproduce than others as some of them inherit traits enabling them to adapt better to the environment.
Why do organisms adapt?To live, all species must adapt to their surroundings. This entails adjusting to survive the ecosystem's climatic conditions, predators, and other species seeking the same food and space.
Organisms with heritable features which enable them to better adapt to their environment relative to other members of their species will be more likely to live, reproduce, and pass on more of their genes to the next generation the theory of evolution by natural selection.
Thus, the correct option is A.
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Volcanic eruptions occur when magma rises upwards through ___ to reach the ____
Volcanoes eruption when molten rock called magma rises to the surface. Magma is formed when the earth's mantle melts.
When Melting takes place?Melting may happen where tectonic plates are pulling apart or where one plate is pushed down under another. Volcanoes are the large volcanic buildings with long, and generally the conical shape, usually with a small crater on the summit and the steep flanks, that constructed by the interleaving of lava flows and the pyroclastic products emitted by one or more conduits.
Compound volcanoes are present in all regions of the volcanism, but it has in the plate convergence zones, where the tectonic plate subdows plunges toward the earth's mantle beneath another tectonic plate, that these volcanic buildings are the most abundant.
The magmatic expression of a converging plate margin environment is usually a series of sub-regularly spaced Compound Volcanoes, forming a sub-parallel volcanic arch to the tectonic fossa.
Therefore, Volcanic eruption when molten rock called magma rises to the surface.
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Please Help ASAP
Which TWO factors most likely increase and decrease along with human population growth?
O A. education
O B. resource consumption
C. recycling of materials
O D. technological advancements
E. converting land for agricultural use
B. Resource consumption and E. converting land for agricultural use are likely to increase along with human population growth, as more people require more resources and food, which often leads to the conversion of more land for agricultural purposes.
What is population growth?Human population growth refers to the increase in the number of individuals in a population over time. As the population grows, there is an increased demand for resources and food, which often leads to the conversion of more land for agricultural purposes and an increase in resource consumption.
Technological advancements may help to increase resource efficiency and reduce environmental impact, but the overall effect on resource consumption is uncertain. Education can play a role in managing population growth and its impact on the environment by promoting sustainable practices and family planning.
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Draw structure of Gand? 3 marks
Answer:
you draw
Explanation:
