The minimum number of American bird species known to have precise migration instincts is.

A.100+

B.10,000+

C.10+

D.1000+

HURRY answer fast!!!!!

Answers

Answer 1

Answer:

b?

Explanation:


Related Questions

What are the characteristics of supernovae?

Answers

As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova.
Ans: As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova.

92ml 3.0 fl oz what is the ratio​

Answers

The ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.

To find the ratio between 92 mL and 3.0 fl oz, we need to convert the units to a common measurement. Let's convert 3.0 fl oz to milliliters (mL).

1 fluid ounce (fl oz) is equal to approximately 29.5735 milliliters (mL).

Therefore, 3.0 fl oz is equal to 3.0 * 29.5735 = 88.72 mL (rounded to two decimal places).

Now we can express the ratio between 92 mL and 88.72 mL:

92 mL : 88.72 mL

Simplifying the ratio by dividing both sides by the greatest common divisor, we get:

46 : 44

So, the ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.

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benefits and drawbacks of synthetic food products?

Answers

Answer:

First We're going to look at the benefits of synthetic food products

To make food Taste better.To improve the nutritional composition of a product (Increase the vitamin content by adding ascorbic acid.To maintain the nutrient Composition of the food and to keep it saafe to eat.

Explanation:

Now we're going to look at the drawbacks of Synthetic food products

Artificial food colors can cause intestinal upset and breathing problems.

which is more of a threat to people acid rain or air pollution?

Answers

air pollution. Acid rain effects the environment more than people while air pollution can cause respiratory issues in humans

Answer:

A threat to the natural restorative nature of the water cycle is acid rain. Acid rain is caused by certain gas emissions in our atmosphere. Volcanoes release some of these gases naturally.

Explanation:

=)

a plan to combat childhood obesity.

Answers

Answer:

1) Education

2)Improvement of school nutrition

3)Regulation of food marketing and labeling

4)Promoting physical activity (for example at school)

If we choose 4:

Plan: implementation of one hour of daily exercise in schools.

-Experts recommend at least 60 minutes of daily physical activity for children.

-This will not only reduce the risk of obesity but also improve the academic performance at school.

-Sports or aerobic-type exercises are the most efficient; continuous running, team sports, swimming, dancing, cycling, tennis, etc.

-Muscle stretching exercises should also be performed at the end of each exercise session.

11. A person who has rickets might need
more foods from which two groups?

Answers

A person who has rickets might need more foods from the milk and green leafy vegetables groups. Rickets is a disease that is caused by a lack of vitamin D. Vitamin D is essential for the absorption of calcium and phosphorus, which are needed for the formation of strong bones. Milk and green leafy vegetables are good sources of vitamin D. Other foods that are good sources of vitamin D include fatty fish, egg yolks, and fortified foods.

In addition to getting enough vitamin D, people with rickets may also need to take calcium and phosphorus supplements. These supplements can help to improve bone health and prevent further bone loss.

Here are some specific foods that people with rickets may want to include in their diet:

Milk
Yogurt
Cheese
Salmon
Tuna
Sardines
Eggs
Fortified orange juice
Fortified cereal
Tofu
Green leafy vegetables
Fortified bread
Fortified pasta
It is important to talk to a doctor or registered dietitian about the best way to manage rickets. They can help to create a personalized diet and supplement plan that will meet the individual's needs.

21.3.2 Quiz: Types of Inheritance
Question 2 of 10
A pea plant is homozygous for green pod color, which is dominant over yellow
pod color. Which statement describes the movement of the plant's alleles
during meiosis, according to the law of segregation?
OA. One allele for yellow pod color moves into each gamete.
OB. An allele for green pod color moves into one gamete, and an allele
for yellow pod color moves into the other gamete.
OC. One allele for green pod color moves into each gamete.
O D. An allele for green pod color and an allele for yellow pod color
together move into each gamete.

Answers

The correct statement that describes the movement of the plant's alleles during meiosis, according to the law of segregation is:

One allele for green pod color moves into each gamete.

This is because the pea plant is homozygous for green pod color, meaning it has two identical alleles for this trait. During meiosis, these alleles separate from each other and each gamete receives only one allele, either for green pod color or for yellow pod color. Since green pod color is dominant over yellow pod color, only the presence of two yellow alleles would result in yellow pod color. Therefore, the gametes will have either one allele for green pod color or one allele for yellow pod color, but not both.

The pea plant's alleles segregate during meiosis, passing one allele for the dominant green pod color into each gamete. This is in accordance with Mendel's law of segregation.

The correct option is OC: One allele for green pod color moves into each gamete. The pea plant mentioned in the problem is homozygous for green pod color which is dominant over yellow. In the process of meiosis, the alleles for a particular trait segregate so that each gamete receives only one allele. Since the plant is homozygous for the dominant green pod trait, all its gametes will contain the allele for green pod color.

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Draw a diagram to show how glucose would bond together and be broken down.

Answers

Answer:

Explanation

image down below

Draw a diagram to show how glucose would bond together and be broken down.

PLEASE ANSWER ASAP

RNA is a molecule with characteristics and a role similar to DNA. Why is RNA necessary for DNA to fulfill its function?

a. DNA does not contain all the genetic material necessary for a living organism
b. DNA cannot leave the cell’s nucleus, so RNA is needed to bring the code to protein-producing organelle.
c. RNA contains the instructions for how an organism functions and DNA contains the instructions for creating the physical structures of an organism.
d. RNA acts as a checkpoint to ensure that DNA’s code does not contain errors.

Answers

Answer:

Transcription and translation are the means by which cells read out, or express, the genetic instructions in their genes. Because many identical RNA copies can be made from the same gene, and each RNA molecule can direct the synthesis of many identical protein molecules, cells can synthesize a large amount of protein rapidly when necessary. But each gene can also be transcribed and translated with a different efficiency, allowing the cell to make vast quantities of some proteins and tiny quantities of others (Figure 6-3). Moreover, as we see in the next chapter, a cell can change (or regulate) the expression of each of its genes according to the needs of the moment—most obviously by controlling the production of its RNA.

Explanation:

RNA is a molecule with characteristics and a role similar to DNA. RNA necessary for DNA to fulfill its function because RNA is needed to bring the code to protein-producing organelle.

What is tRNA ?

t RNA is the transfer RNA which brings up messages to code for a particular type of protein via the message carried by the m RNA after which the amino acid chains start gets forming.

A triplet codon is produced where three of the nucleotides bind together to form a particular  type of a protein.

Rna has a machinery for the messages transferred as  it will channel information to tRNA  where on the ribosomal unit it will start synthesising a particular kind of amino acid.

RNA contains the instructions for how an organism functions and DNA contains the instructions for creating the physical structures of an organism.

Therefore, RNA  is important as well.

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Need helpppppp! Plzzzzz

Need helpppppp! Plzzzzz

Answers

Answer:

near mid ocewn ridges

Explanation:

i learn that b*ith in 6th grade

Answer: The youngest crust of the ocean floor can be found near the seafloor spreading centers or mid-ocean ridges.

Explanation: As the plates split apart, magma rises from below the Earth's surface to fill in the empty void. Hope this helps! :)

What was the main cause of the decrease in the size of the orange-bellied parrot population?

Answers

Answer:

There are about 50 Orange-bellied Parrots remaining in the wild, and a captive breeding population of around 320 individuals. The species is at risk of extinction in the wild in the near-term. Current knowledge suggests that habitat loss and degradation, particularly in the non-breeding range, has caused the decline.

Which of the following is a yield from a tree?
Roots
Timber
Branches
Vegetables

Answers

Answer:

its timber on edg2020

(B)

Explanation:

which phrese does not describe oceans near the equator

Answers

Low lightning does not describe oceans near the equator. thus option D is correct..Low tempretare, low salinty and low density are the other options which are not mention in question.

Which oceans are near the equator?

The Pacific, Atlantic, and Indian Oceans are all located along the equator.

Low lighting does not describe oceans near the water because they receive maximum sunlight in the daytime. As a result, the equator experiences significantly stronger sunshine than the north and south poles, which warms the water there.Low tempretare, low salinty and low density are phrase describe ocean near the equator.

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Why does a cat comes near when show it milk and runs away when you show it stick ?

Answers

Cats have evolved certain behaviors that are influenced by their natural instincts and experiences.

When a cat sees milk, it may be attracted to it because it contains nutrients that are important for its survival, and the cat may associate the presence of milk with positive experiences. This can include nursing from its mother as a kitten or catching and consuming prey that contains milk or milk products.

On the other hand, when a cat sees a stick, it may perceive it as a threat or danger, and may associate it with negative experiences, such as being hit or attacked by a predator. This can trigger the cat's natural instinct to flee or hide from potential danger, as a survival mechanism.

Overall, a cat's behavior is influenced by its instincts, past experiences, and environmental cues. It may approach things that it perceives as positive or beneficial, and avoid or flee from things that it perceives as dangerous or threatening.

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AG CLASS

Which of the following regions was the focus of the second Morrill Act?


Southwest

Southeast

Pacific Northwest

New England

Answers

Answer:

Pacific Northwest

Explanation:

Because u can look it up on the map to see if u are right or wrong

Answer:

Southeast

Explanation:

I picked Pacific Northwest and got it wrong.

Hi can someone please help describe this object that was viewed under high magnification

Hi can someone please help describe this object that was viewed under high magnification

Answers

Pink brain like cells with small dots scattered around

Explain how diffusion restored homeostasis during the dialysis treatment.

Answers

During dialysis, diffusion facilitates the movement of waste products and excess fluids out of the blood, restoring homeostasis.

During dialysis treatment, diffusion plays a crucial role in restoring homeostasis. Homeostasis refers to the body's balanced state, where the levels of various substances are maintained within a narrow range. In the context of dialysis, diffusion refers to the movement of solutes across a semipermeable membrane.In hemodialysis, the patient's blood is circulated through a dialyzer, which contains a semipermeable membrane. On one side of the membrane, the patient's blood flows, while on the other side, a dialysate fluid flows. Due to a concentration gradient, solutes like urea, creatinine, and excess electrolytes in the blood diffuse across the membrane into the dialysate fluid.This diffusion process helps remove waste products and excess fluids from the blood, bringing it closer to the normal physiological range. By restoring the balance of solutes and maintaining proper fluid levels, diffusion in dialysis aids in restoring homeostasis and promoting the overall well-being of the patient.

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what are plant roots?​

Answers

Answer:

vascular plants, the roots are the organs of a plant that are modified to provide anchorage for the plant and take in water and nutrients into the plant body, which allows plants to grow taller and faster.

State one substance that leaves the blood as it flows through the tissues of the small intestine.

Answers

Answer:

Superior mesenteric artery.

The primary source of energy for the body is a form of sugar called glucose. It travels to cells all throughout the body after being absorbed into circulation from the small intestine.

Other chemicals that enter the circulation through the small intestine include the following:

Proteins' building components are amino acids.

The lipids' building components are fatty acids.

minerals and vitamins

Water

In an adult, the small intestine is a muscular tube that is roughly 20 feet long. It is situated in the belly, above the large intestine, and below the stomach. The bulk of digestion and nutritional absorption from meals occurs in the small intestine.

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Can anyone please help me write my research paper on the use of vaccines please ?

Answers

Yes start your paragraph by saying the vaccine is essential because….
It is essential simply because for one we need it… to summarize everything that has been stated so far yes I should be taking the vaccine as well as everyone else because I want to take precautions to stay safe… Thank you and have a wonderful day
You could have a paragraph on the history of them not only how they were developed but how the concept of using antibodies has been around for a very long time.
Another about the actual science behind the ones we use today - dead antigens, and how it activates T cells and memory B cells etc
Perhaps one about the risks and benefits? And go into specific actual case studies?

8 Sediment samples A through D below have the same volume and packing, but contain different percentages
of various particle sizes.
Sample A: 75% clay and 25% silt
Sample B: 25% clay and 75% sand
Sample C: 50% pebbles and 50% sand
Sample D: 50% pebbles and 50% cobbles
Which sample most likely has the greatest permeability?
(1) A (2) B (3) C (4) D

Answers

When sedimenting samples A through D below have the same volume and packing, but contain different percentages the most likely sample with greatest permeability is Sample D: 50% pebbles and 50% cobbles.

What exactly is sediment sampling?Sediment measurement entails measuring the water-sediment mixture to ascertain the mean suspended sediment concentration, particle size distribution, specific gravity, temperature, and other physical and chemical characteristics of the transported solids.Sediment sampling is the process of removing marine, brackish, or freshwater sediments from the seafloor using either professional divers or a grab device, such as the PONAR Grab, so that they can be examined in a licensed laboratory. Grain size, moisture, and pH are typically evaluated, along with metals, PAHs, and PCBs.

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if something is burned a reaction has occurred

Answers

Answer:

true

Explanation:

When the reactants are heated, the average kinetic energy of the molecules increases. This means that more molecules are moving faster and hitting each other with more energy.

HOPE IT HELPS

Answer:

Combustion reaction

What should be done about lion-
fish ownership in hyme & Commercial/
education aquariums?

Answers

Lionfish co-promotes the eradication of invasive and invasive lionfish through lionfish hunter education outreach and direct hunting campaigns.

Invasive lionfish are a threat to native fish and the environment in the Atlantic waters of the United States. Invasive species can lead to the extinction of native flora and fauna, reduce biodiversity, compete with native species for limited resources, and alter habitats.

Participating in the Lionfish Derby helps reduce populations in certain areas and dive sites. Ordering something like a lionfish on your menu when you go out for lunch or dinner can also be very helpful as it creates an incentive and economic reason for more divers to catch more of this particular species. Lionfish colonies are edible and considered a delicacy so control methods should include harvesting lionfish colonies.

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The population of the Earth is roughly eight billion people. If all free electrons contained in this extension cord are evenly split among the humans, how many free electrons (NeNeN_e) would each person get? Use two significant figures.

Answers

Answer:

Explanation:

the same question  was in my book hehehe so i am telling this from my book

Drift velocity: 3.32\cdot 10^{-4}m/s

2) 5.6\cdot 10^{13} electrons per person

For a current flowing through a conductor, the drift velocity of the electrons is given by the equation:

v_d=\frac{I}{neA}

where

I is the current

n is the concentration of free electrons

e=1.6\cdot 10^{-19}C is the electron charge

A is the cross-sectional area of the wire

The cross-sectional area can be written as

A=\pi r^2

where r is the radius of the wire. So the equation becomes

In this problem, we have:

I = 8.0 A is the current

is the concentration of free electrons

d = 1.5 mm is the diameter, so the radius is

r = 1.5/2 = 0.75 mm =0.75.10^-3m

Therefore, the drift velocity is:

vd=8.0/(8.5.10^28)(1.6.10^19)π(0.75.10^-3)^2=3.32.10^-4m/s

2)The total length of the cord in this problem is

L = 3.00 m

While the cross-sectional area is

A=π ^2=π (0.75.10^-3)^2=1.77.10^-6m^2

Therefore, the volume of the cord is

V=AL(1)

The number of electrons per unit volume is n, so the total number of electrons in this cord is

N=nV=nAL=(8.5.10^28)(1.77.10^-6)(3.0)=4.5.10^23

In total, the Earth population consists of 8 billion people, which is

N^1=8.10^9

Therefore, the number of electrons that each person would get is:

N^e=N/N^1=4.5.10^23/8.10^9=5.6.10^13

hope it helps

compare blood cells to plant cells, include details about color, general shape, and size.

Answers

Blood cells are red, squishy, rounded, and have an indentation in them in the middle. Plant cells are green and firm and have a more square, boxy shape. Plant cells are larger than blood cells.

Plant cell is different in size, colour and shape from blood cell.

Plant cell has cuboid shape whereas blood cell has biconcave discoid shape. The colour of blood cell is red if it has oxygen or brown if it is no oxygen whereas plant cell has green colour. Plant cells have cell walls, ribosomes, endoplasmic reticulum, DNA and lysosomes but blood cells have no ribosomes, no endoplasmic reticulum, no DNA molecule and no lysosomes. The size of blood cell is 6.2–8.2 µm whereas the size of plant cell has 10 to 100 micrometers so we can conclude that there are a lot of differences between plant and blood cells.

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List three ways to keep the environment clean

Answers

Reduce, reuse, recycle

Reduce: Use plastic less
Reuse: Reuse plastic bags and paper bags when going to the store
Recycle: Recycle food, garbage, and paper into different containers

The shape of DNA is described as a double helix. Click all that apply to the description of DNA.
a.DNA is made from a single strand of nitrogenous bases.
b.A double helix resembles a “twisted ladder”
c.The “backbone” of the ladder is made up of alternating sugar and phosphate groups
d.The “rungs” of the ladder are made up of the bases joined by hydrogen bonds

Answers

Answer:

B and c

Explanation:

Which of the following reaction elements can be changed by an enzyme?

Answers

The activation energy. (An enzyme lowers the amount of energy required to get the reactants to the transition state.)

Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.

Mark this and returnHow is energy related to the change of staterepresented by the model?O Atoms gain

Answers

The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.

What is Atoms?

A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.

The atoms in this process move from a higher-energy state  to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.

Therefore the correct option is d.

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Energy moves through waves in a

Answers

Energy moves through waves in a vibration.
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