Why is biology so fun?
Answer:
Biology is a fascinating subject in and of itself. It has been my favorite subject to read about and study since I was an incredibly young child. Biology is unique in its complexity and the way living things interact with one another and with their environment. It is fascinating to consider that many of Earth's rocks and minerals came from living things. Chalk and limestone are the remains of small aquatic creatures, particularly shellfish, which died and fell to the seabed, where they were buried and compressed into rock. A limestone or chalk that has been subjected to elevated temperatures and pressures, for example, is metamorphosed into marble. The fact that flints started out as sponges is less well known. Mineralogy and geology on Earth would be quite different if there were no living things.
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If a patient is diagnosed with a broken cheek, which bone is affected?
Answer:
zygomatic bone or arch,
Explanation:
The part of the temporal bone of the skull that forms the prominence of the cheek. It is also known as the zygomatic bone or arch, the malar bone (creating confusion with the malar process of the maxilla), the cheek bone and the yoke bone.
Although the genes that cause LHON are found in cells throughout the body, LHON especially affects specific cells in the eyes and heart. Why do you think that tissues with these cells are among the first to fail as a result of defective mitochondria? How could a mitochondrial defect be related to vision and heart problems?Cite evidence
Answer:
Leber’s hereditary optic neuropathy (LHON) is defined as a disorder caused by a mitochondrial mutation that affects the visual and heart cells.
A defective mitochondria is the primary cause of the LHON because it causes mtDNA is involved in the encoding of ubiquinone oxidoreductase (subunits of NADH) that is the first complex of the electron transport chain. So, any defect or mutation in mtDNA causes neuronal defects.
Mitochondrial defect due to mutation in amino acid exchanges in ubiquinone oxidoreductase affects optic nerves causing loss of retinal ganglion cells (RGCs) and their axons that leads to vison loss.
Mitochondrial biogenesis is the process in which mitochondrial ATP produced, and ATP transfer to heart and defect in mitochondrial biogenesis causes defect in heart cells.
Why did the bald eagle almost go extinct?
Answer:
DDT caused the bald eagle to almost become extinct. Bald eagles eat fish. DDT was in the fish that bald eagles ate. DDT was a pesticide sprayed on crops.
Explanation:
I would appreciate a Branliest
What model shows trophic
levels of an ecosystem?
A. An evolutionary tree
B. An energy pyramid
C. The hierarchy of an organism
Answer: The correct answer to this question is B: An energy pyramid.
Explanation: An energy pyramid is a diagram that compares the energy used by producers, primary consumers, and other trophic levels.
I NEED HELP PLZ!!!!!!!!!!!!
What would the environment of a polar bear include?
A. The temperature of the air, the amount of snow cover
B. The temperature of the air and the number of other polar bears
C. The type of food he eats
D. All of the above are part of the polar bears environment
Answer:
I believe its all of the above.
Explanation:
punnett square simple definition
Why are no two estuaries alike?
Answer:
Two estuaries are not alike because their characteristics are base on the local climates,freshwater that flow into it, water currents and the pattern of tidals.
Explanation:
Estuary refers to the area or region where fresh water a stream or river join and meet with salt water from ocean or sea. Therefore the fresh water from river then mix with the salt water from ocean and thus form what is called brackish water.
Two estuaries are not alike because they have different local climates, different fresh water that flow , different water current and different tidal patterns.
Answer:Estuaries are bodies of water and their surrounding coastal habitats are typically found where rivers meet the sea. Estuaries harbor unique plant and animal communities because their waters are brackish — a mixture of fresh water draining from the land and salty seawater.
The hypothalamus controls excretions from the pituitary gland. It causes the release of hormones from the pituitary by direct nervous control, and by secreting substances that stimulate the pituitary to secrete hormones. Which best describes the hypothalamus.
Answer:
I’m pretty sure it’s A
Explanation:
how geothermal energy is used to create electricity.
2. The California Ocean Current, which
flows along the west coast of North
America, is a
(1) cool current, flowing north
(2) cool current, flowing south
(3) warm current, flowing north
(4) warm current, flowing south
2
Cool current, flowing south along the west coast of North America.
What is California Ocean Current?The California Current is what scientists call an eastern boundary current. Strong current systems flow along the east side (or boundary) of all of Earth's major ocean basins.
Is the California ocean current warm or cold?Along the west coast of the U.S., the California Current carries cold water from the polar region southward, keeping the west coast relatively cooler than the east coast.
Hence , the correct option is 2 :cool current, flowing south
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Underground there are plates within the Earth. These plates are responsible for Earthquakes. When certain plates move, it creates a seismic wave that carries energy within the rocks and soil. What is the most likely result of the wave being transferred from the rock/soil to the air? Group of answer choices
Answer:
Propagation waves that can alter the winds and generate tornadoes, even these waves can also propagate over water surfaces and generate large masses of water that are expressed in forms of giant waves or tsunamis.
Explanation:
In some specific cases, fissures, cracks, natural disasters, species extinctions, vibrations and earthquakes, or schisms are generated due to the propagation of seismic waves.
4 points
Concrete has a density of 2.30 grams per centimeter cubed. What is the
mass of a concrete block in kilograms that is 1000.Ocm x 1000.Ocm x 15.0
cm? *
Answer:
Explanation:
density=2.30 g/cm^3
volume=1000.0 cm*1000.0 cm*15.0 cm=15000000
now we know that
d= m/v
therefore
m=d*v
m=2.30*15000000
m=34500000 g
now we have to convert grams into kg
1kg=1000 g
34500000 g=34500000/1000
34500000 g=34500 kg
FURRY FURSONA TEST. ill tell u ur fursona when ur done : whats ur fav animal ,do u like robots or music,whats ur fav element select from these i put out fire,water,earth, and air
Answer:
yee ha
Explanation:
Answer:
my fav animal is artic fox i like music my fave alement is fire
Explanation:
In eukaryotic gene regulation, rna interference occurs through.
Brainly Est question
Absorbs water and nutrients into the plant.
A) Roots
B) Stem
C) Flower
D) Leaf
What is most likely the author’s purpose in capitalizing the word “Death” in paragraphed 7
Answer:
Hi this question can be only answered by you because we don't know what book your reading. It's not that but its your own opinion and so we can't answer that.
Explanation:
Salt marshes typically sit above the high tide mark. please select the best answer from the choices provided t f
Salt marshes typically sit above the high tide mark this is false.
They haven't positioned the excessive tide mark but instead withinside the region. Because they are weak and have a low grip on them thus settling bove will cause loss.
What is the habitat of the marshes?This marsh habitat is an open ruled through those decreased flowers – there are, in fact, not often any bushes determined withinside the salt marsh.
Thus it is clear that Salt marshes typically sit above the high tide mark this statement is false.
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Answer:
false
Explanation:
Approximately what proportion of the dna in the human genome codes for proteins or functional rna?.
Answer:
1.5%
Explanation:
Copper is often found in wiring in homes. Why are wires not made of sulfur atoms, a nonmetal?
Wires are not made of sulfur atoms which is a non-metal as non-metals are generally bad conductors of electricity.
What are non-metals?
In a chemical reaction, non-metals, which are electronegative elements, frequently share or take electrons. Non-metals are characterized by physics as elements with a high band gap (activation energy), which makes them ineffective conductors of heat and electricity.
Non-metals also contain four or more electrons in their valence shell and are unattractive. Twenty of the known elements have been found to exhibit non-metallic characteristics.
Non-metals are extremely electronegative because they have more than four electrons in their outermost shell. When an ionic connection is formed, the non-metal ion receives a negative charge thanks to its electronegativity.
In a periodic table, as one moves from left to right, the number of electrons in the valence shell grows, increasing the non-metallic characteristic and decreasing the range of atomic radii.
Therefore non metals are bad conductors of electricity.
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explain molecules in your own words
Answer:
A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.
Explanation:
1. Describe what DDT is and how does it impact the food web. 2. Do you think humans health can be affected by hazardous bioaccumulates in an ecosystem? Make sure you explain using a statement from the reading. 3. Do you think DDT is the only bioaccumulate that can affect the food webs of an ecosystem?
Answer:
1. DDT may alter the central nervous system of the animals living in an ecosystem contaminated with this synthetic insecticide, thereby affecting their food relationships
2. Yes, indeed it has been shown that the incidence of deaths by cancer is significantly higher in areas where DDT is used as an insecticide. Moreover, it also been shown that this compound alters the endocrine system of most animals.
3. DDT is a synthetic biomolecule insoluble in water and persistent in the environment, and it is therefore a severely hazardous formulation. Persistent organic pollutants include synthetic organochlorine pesticides (for example, DDT), industrial chemicals, especially toxic polychlorinated biphenyls such as those used in insulating fluids for transformers and capacitors and industrial hazardous substances, including polychlorinated dibenzo-p-dioxins (PCDD) and dibenzofurans (PCDF).
Explanation:
Dichlorodiphenyltrichloroethane (DDT) is an organochlorine substance originally used as an insecticide, which became infamous due to its environmental impacts. In 1972, the US banned the use of DDT; however, there are countries that still use it as an insecticide for the control of mosquitoes in endemic malaria areas.
Why do temperatures on earth increase when the amount of carbon dioxide or methane in the earth system increases?
Answer:
The temperature increases when there is more energy in the room or wherever you are located
Explanation:
Hope this helps!
When the amount of carbon dioxide (CO2) or methane (CH4) in the Earth's system increases, it leads to an increase in temperatures on Earth due to the greenhouse effect. Here's how it works:
Carbon dioxide and methane are two examples of glasshouse gases, which trap heat in the atmosphere. Some of the sunlight that strikes the Earth's surface is absorbed and released as heat again.
Increased Greenhouse Effect: More heat is trapped in the atmosphere as glasshouse gases like CO2 and CH4 are present at higher concentrations. The amplified glasshouse effect describes this.
Global Warming: A phenomenon known as global warming is the outcome of the strengthened Glasshouse effect.
Climate Change: The Earth's climate system is significantly impacted by the rising temperatures brought on by global warming.
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mass is measured in 1._______
amount of 2._______
mass cant 3._________
weight is measured in 4._______
force of 5.__________
weight can 6.________
# 1 Mass is measured in kilograms
# 2 Amount of newtons
# 3 Mass cant be destroyed or created
# 4 Weight is measured in newtons
# 5 Force of gravity
# 6 Weight can be measured
Which process reduces the chromosome number in cells by half?.
Answer:
meiosis,
(this process is the other type of cell division)
Earth has a great variety of surface features that are caused by weathering and erosion. Which of the following describes a change due only to weathering?
Answer:
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.
Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion. Together, these processes carved landmarks such as the Grand Canyon, in the U.S. state of Arizona. This massive canyon is 446 kilometers (277 miles) long, as much as 29 kilometers (18 miles) wide, and 1,600 meters (1 mile) deep.
Weathering and erosion constantly change the rocky landscape of Earth.
Explanation:
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Among the different forms of electromagnetic radiation emitted by the sun, which form is absorbed by plants for photosynthesis?.
Answer:
visible light is the em radiation absorbed by plants for the photosynthesis process.
The form of electromagnetic radiation that is absorbed by plants for photosynthesis is known as visible light. This is also known as photosynthetically active radiation (PAR).
What is Photosynthesis?Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
Visible light lies in the visible spectrum of wavelength from 400 to 700 nm. This visible spectrum is a system where we study the properties of light. This spectrum defines the relationship between energy and wavelength.
Therefore, the visible light or visible spectrum is the form of electromagnetic radiation that is absorbed by plants for photosynthesis.
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What can exercising right after eating do to your body?
A. It can make your bones more susceptible to injury.
B. It can compromise oxygen and nutrient delivery to muscles, which
may cause cramps.
C. If you're swimming, it can cause you to sink in the water from the
extra weight.
O D. It can give you a bad headache.
SUBMIT
B. it can compromise oxygen and nutrient delivery to muscles, which may cause cramps
Exercising right after eating can compromise oxygen and nutrient delivery to muscles, which may cause cramps. Therefore, option (B) is right.
What is exercise?Exercise is a physical activity that is performed to improve or maintain health and fitness, and typically involves structured and repetitive movements of the body. When you eat, blood flow is directed towards the digestive system to help with the absorption of nutrients from food. If you engage in exercise immediately after eating, blood flow is redirected away from the digestive system towards the working muscles, which can cause digestive discomfort and cramping due to a lack of oxygen and nutrients in the digestive tract.
It is generally recommended to wait at least 30 minutes to an hour after eating before engaging in exercise to allow for proper digestion and to avoid any potential discomfort or adverse effects on performance. Exercising right after eating is not likely to make your bones more susceptible to injury, cause you to sink in the water, or give you a bad headache.
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PLEASE!! HELP ME!! PLEASE!! HURRY!! I AM BEING TIMED!! PLEASE HELP ME FAST!!
1. What do cells need in each stage to move on to the next?
2. Why might it take a cell a while to complete the cell cycle?
3. What is cancer? What are tumors? How do we treat them?
4. What are the different stages of mitosis? What do they look like?
5. What are the different parts of the chromosome? Chromatid, centromere, DNA etc..
6. Why does DNA need to be condensed into a chromosome?
7. What is the purpose of histones in organization?
8. What are the different levels of organization within a chromosome? DNA, chromatin, histones, nucleosomes etc.
9. What are the 4 phases of the cell cycle?
10. What are some key things that happen in each phase?
11. What is the purpose of the various checkpoints?
12. What do the following checkpoints ensure? G1/S, S/G2, G2/M?
13. Where is the Restriction Point and what does that mean?
Answer:
Explanation:
1. living organisms in them
2. skip
3. a disease caused by an uncontrolled division of abnormal cells in a part of the body. a swelling of a part of the body, generally without inflammation, caused by an abnormal growth of tissue, whether benign or malignant.
4. Interphase
Prophase
Prometaphase
Metaphase
Anaphase
Telophase
5.
1)
Pellicle and matrix
(2) Chromonemata
(3) Chromomeres
(4) Centromere
(5) Secondary constrictions
(6) Satellite bodies
How does nondisjunction cause chromosome number disorders.
Answer:
Disorders of chromosome number include the duplication or loss of entire chromosomes, as well as changes in the number of complete sets of chromosomes. They are caused by nondisjunction, which occurs when pairs of homologous chromosomes or sister chromatids fail to separate during meiosis.
Explanation: