Answer:
Stage 1—High birth and death rates lead to slow population growth.
Stage 2—The death rate falls but the birth rate remains high, leading to faster population growth.
Stage 3—The birth rate starts to fall, so population growth starts to slow.
Stage 4—The birth rate reaches the same low level as the death rate, so population growth slows to zero.
Explanation:
match the pairs-rhizobium-
a)nitrogen fixation
b) bakery products
c) food poisoning
Answer:
A
Explanation:
GIVING BRAINLIEST! Help please!
How are COASTAL ECOSYSTEMS a major source of Oxygen for the rest of Earth’s water??!
Please don’t copy off internet!
Coastal ecosystems gives aprox. 50% of the earth's oxygen. This is due to the variety of plants that live in their water, example of these are phytoplankton and algae
The coastal ecosystem is a major source of oxygen, because of the presence of plankton, plants, algae, and bacteria that can perform photosynthesize.
What is a coastal ecosystem?A coastal ecosystem is the marine coastal ecosystem. It is the ecosystem where area and the land meet. It includes marine habitats, marine animals, mangroves, algae, backwater, etc.
The coastal ecosystem constitutes 50 to 80% of the earth's oxygen because of the presence of organisms in the region.
Thus, because of the existence of plankton, plants, algae, and bacteria that can photosynthesize, the coastal ecosystem provides a significant source of oxygen.
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Essay Item Chapter 13: Homeostasis and Human Urinary System (I)
During the match, the heartbeat rate of the football fans and players increases. Explain the relationship between the heartbeat rate and the activities of the football fans and the players. (10 marks]
Answer:
Adrenaline
Explanation:
The adrenaline glands, located on top of both kidneys, are glands that produce hormones to regulate blood pressure, bodily functions, metabolisms, etc. Adrenaline is released whenever the blood is redirected towards the muscles, causing surges of energy. In general, adrenaline increases blood flow in your body, which causes the heartbeat to increase, or give the feeling of a racing heart. Between the football players and the heartbeat rate, they are getting rushes of adrenaline from either participating in the game or cheering on their team from the sidelines. Hope that made sense.
Who discovered the nucleus and in which year it was discovered?
Answer:
Rutherford - May, 1911
Explanation:
Answer: "May, 1911: Rutherford and the Discovery of the Atomic Nucleus. In 1909, Ernest Rutherford's student reported some unexpected results from an experiment Rutherford had assigned him. Rutherford called this news the most incredible event of his life."
Drag the tiles to the correct boxes to form correct pairs. Not all tiles will be used.
Match each example given to the type of scientific concept.
For every action or force
in nature, there is an equal
and opposite reaction.
arrowBoth
The outer layer of the Earth is
divided into plates that move
due to convection currents
under the surface.
arrowBoth
If the amount of daylight
increases plant growth, then
plants will have higher rates
of growth during the summer.
theory
law
observation
hypothesis
Answer:
For every action or force in nature, there is an equal and opposite reaction. ⇒ lawThe outer layer of the Earth is divided into plates that move due to convection currents under the surface. ⇒ theoryIf the amount of daylight increases plant growth, then plants will have higher rates of growth during the summer .⇒ hypothesisExplanation:
Which of the following elements is not a metalloid?
Answer:
gallium
Explanation:
A man and woman have a son who is color blind, a recessive sex-linked trait carried on the X chromosome, but neither parent is color blind. The woman is now pregnant with their second child. Which of the following statements is true about the second child?
A daughter will be color blind because the father is a carrier of the recessive allele.
A son will be color blind because the mother is a carrier of the recessive allele.
A daughter will not be color blind because the father is not a carrier of the recessive allele.
A son will be color blind because the father's mother must have been a carrier for recessive allele.
Answer:
B. A son will be colour blind because the mother is a carrier of the recessive allele.
Answer: The answer is B
Explanation: The son will be color blind because the mother is a carrier of the recessive allele.
Hope this was helpful
Which of the following is not a
metal?
A. gold
B. nitrogen
C. silver
la cantidad de energía que llegaría al cuarto nivel trófico en un ecosistema
How is carbon dioxide cycled between a tree and a fox what processes are involved
Answer:
The fox exhales carbon dioxide and the tree takes in the carbon dioxide and converts it into oxygen.
Explanation:
is a grasshopper a herbivore carnivore or omnivore
Grasshoppers are well-known plant-eating insects that are herbivores.
Their typical diet consists of a variety of plant material such as grasses, leaves and plant stems. They chew and eat plant matter using their powerful jaws. Grasshoppers' digestive tracts contain symbiotic microbes that help them digest cellulose, a complex carbohydrate found in plants.
Although the primary trait of grasshoppers is herbivory, it is important to note that under certain circumstances, particularly when resources are limited, some species may engage in cannibalism. However, they are clearly classified as herbivores because of their overall diet and ecological function in the ecosystem.
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What is molecular gastronomy? (Explain in your own words:))
Answer:
molecular gastronomy, the scientific discipline concerned with the physical and chemical transformations that occur during cooking. The name is sometimes mistakenly given to the application of scientific knowledge to the creation of new dishes and culinary techniques.
Please someone help me asap. <3
the oxidation of one three-carbon molecule into one acetyl coa molecule.
Answer:
The Answer is: pyruvate oxidation
Explanation:
In prokaryotes, it happens in the cytoplasm. Overall, pyruvate oxidation converts pyruvate—a three-carbon molecule—into acetyl CoAstart text, C, o, A, end text—a two-carbon molecule attached to Coenzyme A—producing an NADHstart text, N, A, D, H, end text and releasing one carbon dioxide molecule in the process.
which part of the chemical structure differentiates one amino acid from another?
Explanation:
Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. This R group, or side chain, gives each amino acid proteins specific characteristics, including size, polarity, and pH.
just answer the questions and pull sentences 4-5
:(
Answer:
top carnivore is alligator sorry o dont really know much about the others hope this helps a little bit
Maple seeds spread so that new maple trees can grow.
Which way will these seeds most likely spread?
Answer:
Maple seeds travel on the wind by using their wings. The uneaten seeds will germinate some distance from the parent plant.
Hope it helps.
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Maple seeds are considered to be wind-pollinated.
These are very light seeds so they can easily transport by wind.What is the feature of seeds to disperse through winds?Lightweight.Silky hair.Wings. Seeds of plants like cotton, poppy and drumstick are dispersed by wind. Wind dispersed seeds have special adaptations which make their dispersal easier. They are light in weight. Some have wings that help them fly long distances.What are the methods through which dispersal of seeds take place?There are five main modes of seed dispersal:
Gravity, Wind, Ballistic,Water, Animals.To know more about seeds dispersal here
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Which event is an example of condensation?
A. A puddle dries when exposed to the Sun.
B. A lake becomes a skating rink in the winter.
C. Fog forms in a valley.
D. A spilled drop of rubbing alcohol disappears.
Answer:Fog forms in a valley
Explanation:School
Read the statements. The molecule that gives skin its color is a molecule called melanin. In some people, skin contains no melanin These people have white skin and are called albinos, Which statement explains why some people cannot form the protein that produces melanin?
○Their genes for the production of that protein do not function
○They do not get enough nutrients to build the protein
○ Their cells do not get enough energy to build the protein
○The molecules they produce we used by organs other than the skin
Answer:
(b) is your answer of question.
How to use bacteria as a treatment for sewage waste
Answer: hope this helps
Explanation:
Aerobic bacteria use oxygen, which is added mechanically, to break down wastewater contaminants, converting it into energy. Bacteria use this energy to grow and reproduce. Anaerobic bacteria obtain oxygen from their food source. As anaerobic bacteria break down sludge, they produce methane gas. This methane gas can be used as an alternative energy source, called biogas, to fuel the wastewater treatment process.
Explanation:
Biological wastewater treatment is the most common method of sanitation in the world. This technology uses different types of bacteria and other micro-organisms for the treatment and cleaning of polluted water.
Wastewater treatment is as essential to human health as it is to environmental protection. Indeed, the use of these bacteria accelerates the treatment of pollution on a small surface: the purification plant. It’s better than letting the river handle it, because even though it’s the same purification process that occurs in nature, the quantities of pollution discharged today are too high to keep the natural cycle intact.
Thus, sewage treatment plants can prevent eutrophication of rivers, for example, but also prevent the diffusion of diseases.
Municipal and industrial effluent is the main source of wastewater. And thanks to the use of micro-organisms, we are able to degrade the content of these organic wastes as they are used as a source of food and energy to grow and multiply.
Photosynthesis takes place in the which give plants their green color
Answer:
chloroplasts
Explanation:
this is fourth grade level stuff.
Answer:chloroplasts
Explanation:chloroplasts
suppose you and a friend are making iced tea using identical glasses. You both use the same amount of water, and the water temperature is the same in both glasses. Explain how you can tell who added more ice tea mix to the glass.
Answer:
Iced-Tea Problem
220 g of 35˚C tea (water) is poured over 250 g of -10˚C ice.
What happens...
The warm water (tea) will cool down to 0˚C. As it cools the ice will heat up to 0˚C and then start to melt.
There is plenty of ice however and only a portion of it will melt. Find the amount of ice that melts into water
and you’ll know the final composition and even the dilution factor on the tea.
Cool tea water down to 0˚C
4.184 J/g˚C · 220 g · 35˚C = 32216.8 J removed to cool tea to 0˚C
Warm ice up to 0˚C
2.09 J/g˚C · 250 g · 10˚C = 5225 J to heat ice up to 0˚C
This heat comes from the cooling water, so substract this amount off the total above
32216.8 - 5225 = 26991.8 J of heat that will MELT the ice
mass of ice melted = 26991.8 / 334 = 80.8 g of ice melted
220 g + 80.8 = 300.8 g of water
250 g - 80.8 = 169.2 g of ice
final mixture for
my glass of iced
tea all at 0˚C
220.0 g original tea
300.8 g final tea
The dilution factor is simply the original volume
over the final volume (or masses here ). = .731 or 73.1%
of the original
concentration
If I’m going to get a dilution of 73.1%, I should
compensate by mixing my tea in 26.9% LESS
volume than the directions state. So I will not dilute
the tea to 2 quarts (64 oz), but rather to 1.462
quarts (46.8 oz).
It’s hot and I want a glass of iced tea as soon as possible. The directions for my tea say to boil some water,
add 2 tea bags (these are the big bags), steep for 4-5 minutes, then add enough water to make 2 quarts which
turns out to be a pitcher of tea. However, if I make this tea the exact concentration I want now, when I pour
it over ice the ice will melt (because the tea will still be quite warm) and my tea will be too dilute. So I
calculate how much stronger I should make the tea KNOWING I will pour the warm tea over ice to make
my glass of iced tea.
(a). What is the final temperature and composition of the glass of iced-tea?
(b). What will be the concentration of the tea relative to the original concentration?
(c). How concentrated should I mix the tea knowing that it will be diluted when
poured over the ice?
(a)
(c)
(b)
only 73.1% of the full
amount to compensate
for dilution
How does a plant obtain the water it needs for photosynthesis?
What are the roles of the nucleus, cytoplasm, mitochondria, and the cell membrane in eukaryotic cells? in your own words nothing from the internet
Answer:
What are the roles of the nucleus, cytoplasm, mitochondria, and the cell membrane in eukaryotic cells?
Explanation:
1.The cell membrane holds the cell's internal contents from its environment
2.the nucleus, the cell's "brain", holds the cell's DNA in the form of chromosomes, and makes protein codes that tell the other organelles to function in a certain way once the codes are made into literal proteins and passed around the cell
3.The cytoplasm is the gelly fluid inside the cell. It is the place for chemical reaction, and provides a place where other organelles can operate within the cell properly, and the cytoplasm keeps the cells from moving around.
4. The main job of the mitochondria is to convert nutrients into energy through cellular respiration, making ATP. the mitochondria are known as the powerhouse of the cell. In addition to supplying energy, the mitochondria is involved in a range of other processes,like signalling, cellular differentiation, cell death, as well as control of the cell division cycle and cell growth.
can someone please draw a flow chart of the Big Bang theory (not show) the scientific one (:
Answer:
Ur welcome ;) (Even tho I uploaded it from the web lol)
Explanation:
An amoeba that lives in salt water does not have a contractile vacuole to do so.
Explain observations.
Answer:
what do we call a mutation that involves one or just a few nucleotides
bread wheat is the example of hard wheat or soft wheat?
Answer:
hard red spring wheat
Explanation:
i just guess UnU
Answer:
The answer is hard bread
Explanation:
Why did Ibrahim conclude that the dorsal spines were not used to support a hump or to regulate body
temperature?
Chemical composition of dorsal spines provides information about its function as regulation of body temperature.
The dorsal spines were not used to support a hump or to regulate body temperature because of the chemical composition of the spines. Ibrahim found that the spines were made up of bones having few blood vessels and were likely wrapped tightly in skin which can't perform the function of thermoregulation in the body.
In order to regulate temperature of the body, more blood vessels are needed and we know that in dorsal spines the structure is bony and less number of blood vessels so we can conclude that chemical composition of dorsal spines provides information about its function as regulation of body temperature.
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GIVING 100 POINTS, NO JOKE ANSWERS. PLEASE HELP!
Environmentalists claim that climate change could lead to major biological change on Earth. Which of the following statements supports the biological predictions related to climate change?
Sea levels will fall, causing migration of 50% of the world's human population.
Carbon dioxide levels and temperature changes are direct related in the studies.
Studies show that atmospheric carbon dioxide has increased over the past 150 years.
The distribution of many organisms has already shifted as a result of warming.
Answer:
Sorry, all I know is it's not C
Explanation:
Maybe A but, I am just guessing at this point because I need help on this question too.
What is one property of a senescent cell?(1 point)
It can no longer divide.
It can grow and divide rapidly.
It can live for a very long time.
It can no longer be replaced.
What is one property of a senescent cell:
~It can no longer be replaced
Hope this helped you- have a good day bro cya)
One property of a senescent cell is that it can no longer divide.
Senescent cells are cells which help in tissue development in an embryo and also helps to promote healing of injuries.
These cells however exhibit a very a large lysosomal activity which destroys
vital components in the molecules . This thereby prevents the senescent
cells from not being able to divide.
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