Answer: c)limestone
Explanation:
anyone know this I don’t get the question
Answer: 5.000/ml
Explanation: density = mass/volume= 50/ 100=1/2 or 0.5 g/ mL
Which of the following is an example of a vestigial structure?
-the wings of red-tailed hawks
-the hind limbs of a house cat
-the fins of a shark
-Wisdom teeth in humans
Answer:
the wings of a red tailed hawks
Write the relationship between cells, tissue and organs in human body.
(plzzzzz answer correctly)
Answer:
Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.
Explanation:
A student made a table to show information about the physical structures and organs of birds. What statement best describes how to correct an error in the table?
A. The feathers support the body.
B. The feathers help the bird move.
C. The ovaries produce the eggs.
D. The ovaries produce the sperm.
Answer:
C
Explanation:
i go to flvs too, also, good luck on FSA
A student made a table to show information about the physical structures and organs of birds. The statement which best describes how to correct an error in the table is the ovaries produce the eggs. The correct option is C.
What are the physical structures and organs of birds?Birds are the warm-blooded animals. Their forelimbs are generally modified into wings. They have a well-developed flight muscles which help during the flight of bird. Their hind limbs are adapted for the purpose of walking, hopping, perching, grasping, wading and swimming.
The ovaries produce the eggs. The ovaries are responsible for producing eggs in birds. Therefore, if there is an error in the table that incorrectly identifies the function of the ovaries, it is important to correct it by stating that the ovaries produce the eggs.
Therefore, the correct option is C.
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Leigh's disease is a mitochondrially inherited disease with symptoms that include seizures, fatigue, impaired reflexes, breathing problems, and ataxia. The pedigree shows the presence of Leigh's disease in three generations. Individual 4 had two daughters and one son, and individual 6 had one daughter and two sons. Which of the individuals indicated are affected by Leigh's disease
About the question:
You will find the pedigree in the attached files
Answer:
individual 4 → Affected woman → Black circleindividual 5 → Affected woman or man → Black circle or squareindividual 7 → Healthy woman → Empty circleindividual 10 → Affected boy → Black SquareExplanation:
Mitochondrial inheritance is the transmission of a disease or a trait from the maternal line.
Most of the DNI is in the nucleus, but there is also DNI in mitochondria. Sperm cells hardly transfer mitochondrial genes to the progeny, so mitochondrial DNI is mostly inherited from the maternal side. If there exists any mutation in this mitochondrial DNI, the whole progeny of the mutated woman will be affected, as they will get the mother genotype carrying the mutation. On the contrary, if an affected man is carrying a mutation in mitochondrial DNI, non of their descendants will get the disease.
Before answering the question, let us remember the pedigree symbols.
Squares represent Males/Men Circles represent Females/WomenEmpty symbols represent healthy/non-affected individualsSolid black symbols represent sick/affected individualsIn the exposed pedigree, we can see that the mother is affected by the disease (individual number 2), so all her children are also affected (individuals 4, 5, and 6) because the disease is mitochondrially inherited.
Individual 3 is a healthy man, so individual 4 must be an affected woman (Black circle). As she is the one affected, then all her children will also be affected. This couple had one boy and two girls. Individuals 8 and 9 are girls (circle), so individual 10 must be the affected boy (black square).
On the other hand, individual 6 is an affected man (black square), son of individuals 1 and 2. This man couples with a woman, and they have all healthy children. So this woman (individual 7) must be healthy. Even though the man is affected, all their children are not because their mother (7) is not. Remember that sperm cells do not transmit the mitochondrial genes to the progeny.
And finally, individual number 5 might be either a man or a woman. In any case, this person is also affected by Leigh's disease.
Identify the existence of Neutrons.
At which position is the northern hemisphere experiencing spring?
Point A
Point B
Point C
Point D
Answer:
c
Explanation:
A researcher is comparing amino acid sequences
for the protein hemoglobin from several primate
species. What does the degree of similarity in
sequences among the primate species indicate
about these species?
A.
how closely related they are
B.
how frequently they interbreed
C.
how rapidly they can evolve in the future
D. how efficient their circulatory systems are
Does The translation between mRNA and amino acids is the same for all living things support the theory of evolution
Answer:
the translation between mRNA and amino acids are the same for all living sells. for example the mRNA codon CAG codes for glutamine in all living cells
Cyanobacteria can cluster together into colonies called _______, with some discovered in Western Australia that are 3.5 billion years old. Cyanobacteria produce oxygen and convert sunlight to energy using _______. Plants and arthropods didn't make the transition to land until near the end of the _______ Period. Diverse multicellular eukaryotes didn't appear until the _______ period. A large multicellular eukaryote requires more _______ to survive than a single-cell eukaryote. Respond to the following based on your reading. Describe the biological chemical processes that were responsible for producing oxygen in Earth's atmosphere, eventually leading to the Cambrian Explosion. Explain the importance of oxygen in the evolution of large multicellular animal life.
Answer:
1.) stromatolites
2.) photosynthesis
3.) Ordovician
4.) Cambrian
5.) oxygen
6.) As Earth cooled, carbon dioxide dissolved in the early ocean. Cyanobacteria consumed carbon dioxide and converted it to oxygen. Methane was removed from the atmosphere as oxygen was produced, eventually leading to the Cambrian Explosion.
7.) Metabolic processes that use oxygen produce more energy than anaerobic metabolism. Simple diffusion of oxygen would limit the size of a multicellular eukaryote, but animals evolved ways to transport oxygen to their tissues, which permitted an increase in size.
Explanation:
From Penn
Answer:
1. stromatolites
2. photosynthesis
3. Ordovician
4. Cambrian
5. oxygen
6. As Earth cooled, carbon dioxide dissolved in the early ocean. Cyanobacteria consumed carbon dioxide and converted it to oxygen. Methane was removed from the atmosphere as oxygen was produced, eventually leading to the Cambrian Explosion.
7. Metabolic processes that use oxygen produce more energy than anaerobic metabolism. Simple diffusion of oxygen would limit the size of a multicellular eukaryote, but animals evolved ways to transport oxygen to their tissues, which permitted an increase in size.
Explanation:
Just did it on Penn Foster
Goiters may occur due to iodine insufficiency, but other causes are possible. Which of the following would NOT tend to result in increased size of the thyroid gland?
A. High levels of thyrotropin releasing hormone.
B. High levels of thyroid stimulating hormone.
C. High levels of thyroxin and triiodothyronine.
D. All of the above would tend to increase the size of the thyroid gland.
E. None of the above would tend to increase the size of the thyroid gland.
Answer:
Option A
Explanation:
Thyroid is primarily caused by lack of iodine but there are other reasons as well that lead to increased size of the thyroid gland. Some of these reason is
a) over- or underproduction of thyroid hormones
b) Nodules in the glans
Some times, due to overstimulation immune system itself attack the thyroid gland thereby producing excess thyroxine and hence causing the thyroid to swell
Thus, Option A is correct
Which limiting factor is this adaptation a response to
Answer:
Answe
Explanation:
A limited factor that causes adaptation is the loss of habitat,food,or new species.
74. As layer upon layer of sediments are deposited, the process of the presses them
together.
Answer:
GO GET BOY
Explanation:
What is correct regarding trans fatty acids
Answer:
They raise LDL and lower HDL
Explanation:
True or False?
The cuticle scales of the hair
always point toward the follicle
Answer:
The cuticle is a transparent outer layer of the hair shaft. It is made of scales that overlap one another and protect the inner layers of the hair (Figure 3-4). The scales point from the proximal end of the hair, which is closest to the scalp, to the distal end, which is far- thest from the scalp
Explanation:
what does Risk Management mean
Answer:
(in business) the forecasting and evaluation of financial risks together with the identification of procedures to avoid or minimize their impact.
Explanation:
Answer:
Risk management mean managing the risks you take if financially, biologically, and in life. Indentifying, assesing, and controlling risks.
How did black leaders and abolitionists embody the democratic principles and ideals of liberty and equality in their actions?
The picture below shows the energy flow through a meadow community.
Hurry!!!
Which of the following would most likely occur to the populations of the community immediately after a wildfire burns the environment?
Group of answer choices
Hawks and foxes would increase
Hawks would increase and foxes would decrease
Meadow plants would increase and rabbits would decrease
Meadow plants and rabbits would decrease
How can the application of insecticides and herbicides affect an individual’s health? a. Insecticides and herbicides can potentially contaminate foods. b. Insecticides and herbicides increase the disease rate of agricultural plants. c. The application of herbicides and pesticides reduces the vitamin content of crops. d. Herbicides and insecticides increase the health value of crops by adding necessary nutrients.
Answer: A. Insecticides and herbicides can potentially contaminate foods.
Answer:
the answer is A
Explanation:
edge 2021
haploid daughter cells form
Answer:
ok
Explanation:
what gene combination will have 50% chance of occurring if two heterozygous black and chickens are mated 
please answer!!
Give a scenario in which a new ecosystem would be created
[please] put these in order
Answer: The arrangements and correct order of the above described genetic and behavioural adaptations includes:
A.) Camouflage: This is a survival adaptation by which an animal blends in and is hidden in its surroundings.
B.) Mimicry: This is an organism exhibiting characteristics similar to one known to be dangerous.
C.) Tropism: This is the growth or movement of an organism ( usually plant) in response to a stimulus.
D.) Venom: This is a poison secreted by animals for either defensive or offensive purposes.
E.) Mutualism: This is the interaction of two organisms where both benefits.
F.) Commensalism: This is the interaction of two organisms where one is helped and the other is neither helped nor harmed.
Explanation:
In the study of organisms and it's environment, they are able to adapt through genetic and behavioural mechanisms. Adaptation of defined as the ability of organisms to become fitted to its environment by modifying or changing its features. These features may be structural or behavioural.
STRUCTURAL ADAPTATION: Almost every part of the body of a living organism is structurally adapted to its mode of life. They are structurally adapted for the following specific functions:
--> Escape and defence: many animals use CAMOUFLAGE to remain unnoticed by potential predators. While some others are capable of producing poisonous VENOMS which may become offensive to the predators. Also many harmless organisms may possess structural behaviours that may MIMIC dangerous organisms thereby keeping their predators at arms length.
--> obtaining food: organisms needs to possess some structural features that will enable them obtain food in their environment. This usually leads to forming various feeding relationship ( which may be MUTUALISTIC or COMMENSALISM) with one another to be able to obtain food for survival.
BEHAVIOURAL ADAPTATION: Behaviour is everything an organism does in response to changes in its environment. Plants do exhibit behavioural adaptations and a typical example is the phototrophic movement of plant shoots which is a type of TROPISM.
Which consequence is a direct result of human population growth
Answer:
One of the largest environmental effects of human population growth is the problem of Global warming.
Economic development, urbanization, energy consumption, transportation/motorization due to rapid population growth are major driving forces of air pollution in large cities.
In order to support the growing population, forests are being destroyed at an alarming rate. Deforestation occurs when humans clear forests to use the land either for agriculture or for habitation. This leads to soil erosion and the extinction of plant species. Land animals also decline in numbers and even face extinction due to human expansion that encroaches on their natural habitat and limits their ability to spread geographically.
Humans also continue to put a great demand on the natural resources of our planet. Many non-renewable resources are being depleted due to the unrestrained use of fuel and energy. Many parts of the world also suffer from a shortage of food and water.
The growth of the population puts larger demands on our already limited resources. The environment on earth is suffering from the growth of the global population. The depletion of resources and biodiversity, the production of waste, and the destroying of natural habitat are serious problems.
Explanation:
sorry it is so long but here u go plz leave a like and a rating and brainliest
The direct result of human population growth include consequences such
as pollution.
Increase in human population has led to an increase in industries and
use of automobiles which emits different gases which are harmful. They
deplete the ozone layer and cause global warming with incidences of
sunburns while others cause respiratory diseases such as asthma etc.
it has also resulted in overcrowding and reduced fresh oxygen due the
structures for different purposes.
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Should humans use synthetic materials that have natural material that is the same chemically? PLZ I NEED THIS NOW
Answer:
It Depends . Like Some People Use Fake Skin For Tattoos , Made To Practice Stitches , Or Injections .. It Just Really Depends On What You Are Doing If This Helps ..
-)))
Calcium is the most abundant mineral in the human body. Calcium ions are needed for bone mineralization and tooth health,
regulation of the heart rate and strength of contraction, blood coagulation, contraction of smooth and skeletal muscle cells, and
regulation of nerve impulse conduction. When blood levels of calcium get too high, the thyroid gland is stimulated to release
calcitonin, which initiates actions to lower blood levels of calcium.
Consider the role of calcitonin. ALL BUT ONE is the result of the release of calcitonin by the thyroid gland.
A)
inhibits osteoclast activity
B)
stimulates calcium uptake by the bones
stimulates the synthesis of vitamin D
D)
decreases reabsorption of calcium by the kidneys
Answer:
decreases reabsorption of calcium by the kidneys
Explanation
from what ive found, calcitonin stops osteoclast activity, makes bones stronger, stimulates the sythesis of vitamin D, but does not (in anywhere i have read) decrease reabsorption in the kidneys. I really hope this helps.,,
if im wrong i am so sorry :(
12. What is the relationship between DNA and chromosomes?
A. DNA is tightly coiled chromosomes
B. Chromosomes are tightly coiled DNA
C. A section of DNA is called a chromosome
D. There is no relationship between DNA and chromosomes
Answer:
I believe your answer is A.
if this is a two pick answer than your answer is both A and B.
Explanation:
What is the relationship between a DNA molecule and a chromosome?
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Answer: A. DNA is tightly coiled chromosomes
Explanation:
What might be limiting resource for sharks in their ecosystem
Answer:
Sharks keep ocean ecosystems in balance
Sharks limit the abundance of their prey, which then affects the prey of those animals, and so on throughout the food web. Because sharks directly or indirectly affect all levels of the food web, they help to maintain structure in healthy ocean ecosystems. HOPE THIS HELPS!!!!!!!!
Explanation:
Examine the photographs of 16 species of anole lizards and sort them into as many groups as you want according to how they appear in the photographs. Explain how you grouped the lizards and your rationale for the various groupings. If you picked a body feature, speculate about the advantages or disadvantages of such a body feature in the environment that species occupies.
Answer:
On the basis of physical appearance.
Explanation:
We grouped the lizards into various groups on the basis of similarities and differences in the body structure, appearance and colour etc. The legs of anole lizards are small legs with pads on their feet for gripping surfaces which give them the advantage to climb up the trees while on the other hand, these small legs can't help in the survival on the land because they can't run too fast from their predators with these short legs so these legs has benefit in climbing the tree but disadvantage in running on the land.
Describe the stages of invasion up to and including the spread stage. Also, include one barrier to could make
an invasion fail and briefly describe it.
Answer:
Introduction, naturalization, colonization, and dispersal or spreading.
Explanation:
There are four main stages of invasion i.e. introduction, naturalization, colonization, and dispersal or spreading. In the first stage, the specie is introduced in the environment, in the second stage the specie adopt the environment, in the third stage the specie started growth and make colonies to increase its population and in the last stage the specie disperse in the environment through different means and spreading of that organism occur. The failing of adaptation to the environmental conditions leads to the failing of invasion of a specie.
