What are some factors that can cause observed evolutionary change?

Answer:

As the atmospheric concentration of carbon dioxide above water increases, the acidity of the water will increase causing the pH to decrease.

Answer:

because the atomic number tells you how many protons and neutrons there are

Explanation:

Answer:

the body has levels of organization that build on each other.Cells make up tissues,tissues make up organs,and organs make up organs system.

Answer:

4. D (enzymes 1 and 3 works equally well in an acidic and alkaline environment respectively)

5. C. 2; 7; 9.5

Explanation:

The image attached to this question shows a graphical representation of the pH ranges for three enzymes. According to the image;

- Enzyme 1 reached its peak reaction rate at pH 2 (acidic)

- Enzyme 2 reached its peak reaction rate at pH 7 (neutral)

- Enzyme 3 reached its peak reaction rate at pH 9.5 (basic)

This result means that enzymes 1, 2 and 3 will work well and effectively at an acidic, neutral and alkaline environment respectively. Likewise, the optimal pH level for enzymes 1, 2 and 3 are 2; 7; and 9.5 respectively.

Answer:

a

Explanation:

I haven't heard of them

Answer:

A.

Explanation:

Hox genes encode and correct positions of body structures making sure they form in the correct places in the body.

Answer: it’s c he thought he would be contaminated from the outside

Explanation:

I took the test

Howard Hughes neglected his own hygiene despite having those around him follow strict cleanliness practices. Hughes had these odd behaviors because he thought he would be contaminated from the outside.

Cleanliness gives rise to a good character by keeping body, mind, and soul clean and peaceful. The cleanliness only which helps to improve our personality by keeping clean externally and internally.

Thus, option "C" is correct.

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Answer:

9

Explanation:

The diploid chromosome number for a radish is 18 and the diploid chromosome number for cabbage is also 18. The haploid number for these species is nine. Therefore, the gametes of the radish and cabbage contain nine chromosomes.

Ant breed faster than any other organism on earth, 20% of earth mass have land animals. Many ants are on the earth. Thus, option D is correct.  

Ants belongs to Formicide family  which is related to so called eusocial insects like bees and termites. It is appeared in the Cretaceous period that is more than 90 million years ago.

The diversity of ants is every where except Antarctica.

The body has three parts such as  a head, a meso-some and metasoma or gaster.

Ants are mostly omnivorous but can be scavengers , predators or herbivores based on ecological context.

The reproduction in which young, queens  fly during mating time, fertilize with male, this flight is called as nuptial flight.

Then queen lay eggs, then larvae emerge to become pupae, then adults such as workers, soldiers, males or other queens are produced.

Thus, option D is correct.  

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Answer is B. You can tell that from the table.

Answer:

erosion

Explanation:

this is the answer for only first page.

homologous, diploid,gametes,haploid

the same thing as what the other person said.

di=2

hap=1

remember that for diploid and haploid

Answer:

the material that strengthens their cell walls

Explanation:

Chytrids originate from the kingdom fungi and a division known as Chytridiomycota. They contain a feature of unique characteristics by the presence of the chitin and the cellulose cell wall. The chitin made up the component of their cell wall in fungi but in Chytrids, the cellulose helps to strengthens their cell walls.

Answer:

A. the material that strengthens their cell walls

Answer:

here hope helps

Explanation:

Answer:   Stem cell research can potentially help treat a range of medical problems. It could lead humanity closer to better treatment and possibly cure a number of diseases:

Parkinson’s Disease

Alzheimer’s Disease

Heart Diseases, Stroke and Diabetes (Type 1)

Birth Defects

Spinal Cord Injuries

Replace or Repair Damaged Organs

Reduced Risk of Transplantation (You could possibly get a copy of your own heart in a heart-transplantation in the future

Stem cells may play a major role in cancer

Better treatment of these diseases could also give significant social benefits for individuals and economic gains for society

Cons

"We should not mess with human life."

"Humans should not be trying to play God"

Some argue that stem cell research in the far future can lead to knowledge on how to clone humans. It is hard to say whether this is true, but we have seen devastating consequences of other research-programs, even with good intentions, such as nuclear research.

Stem cells are cells, which have the ability to transform into many different types of cells. The stems cells have the potential to specialize in any type.

The stem cells are extensively used for research, curing diseases, and especially in developing prosthetics. The stems cells provide new cells for the growth and development of the replaced and damaged cells.

The arguments for and against the use of stem cells are:

Arguments for the use of stem cells in medical research are:

1. The stem cells enhance the growth and development of healthy skin tissue.

2. The cells can be used to enhance the production of collagen.

3. The study of stem cells helps in understanding the causes of disease.

Arguments against the use of stem cells in medical research are:

1. The use of stem cells for research harms human life and dignity.

2. People believe that killing blastocysts or stem cells is equal to taking a human life.

3. However, the transplant of stem cells can be rejected by the patient's body, therefore, can cost the life of the patient.

Therefore, the use of stem cells for research can be fruitful or disadvantageous.

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Answer:

A monk, Mendel discovered the basic principles of heredity through experiments in his monastery's garden. His experiments showed that the inheritance of certain traits in pea plants follows particular patterns, subsequently becoming the foundation of modern genetics and leading to the study of heredity.

Explanation:

Answer:

Mendel studied the genetics of pea plants.

Explanation:

Mendel looked at the pea plants in his monastery garden to determine genetics. He found that some plants had white flowers, while some did not, and he used that discovery to determine the genetics of the plants.

Answer:

B

Explanation:

Elements are pure substances that cannot be broken down into other substances by chemical means .

Answer:

I think so answer is D

Explanation:

I hope it helps you

Pl Mark brainlist answer

Answer:

A 2008 study suggests that sympatric speciation has occurred in Tennessee cave salamanders.

Explanation:

Hope this helps

Answer:

A. Grasses evolved providing food to larger grazing animals, no dinosaurs which made way for mammals

Answer:

Oxygen is an electronegative

Explanation:

Not only is it because in the chemical equation for water there is 2 hydrogen atoms and 1 oxygen atom, but they also share their electrons to fill their outermost levels and that are attracted together.

Hope this helps!!

Answer:

four-year degree , master’s degree , certification exam from ABCP

Explanation:

Answer:

She should do a four-year degree , master’s degree , certification exam from ABCP

Explanation:

Plutonium

Neptunium

osmium

let me know if it's correct or not, these were the only ones I could think of.

Few natural elements have a greater density than gold are plutonium, neptunium, and osmium.

An element is define as a type of substance that is impossible to  break into smaller pieces by the help of chemical process. There are several rules that should be followed at the time of assinging name of the elements. The first rule is name of the element is not a proper noun. The second rule is the symbols of the element that must be of one or more than one symbol.

Density is define as the mass per unit volume it means that 1 kg mass present in 1 meter cube is called density, density is also states that the how compact an material.

Mathematically

Density = mass/volume

S.I unit of density is kg/m^3

Density is higher in solid as compare to liquid and density of liquid is higher than gas so density is in order of SOLID>LIQUID>GAS. So we know that solid is compact in nature as compare to liquid and gas.

Therefore, Few natural elements have a greater density than gold are plutonium, neptunium, and osmium.

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Answers:

Here are some fact about sharks that i found cool

#1

Possibly one of the most evolved sharks today are hammerhead sharks. They have an advanced sensory system and a body shape that has adapted to hunt specific prey

#2

Sharks may be one of the most important species on Earth. They have been maintaining our oceans for over 400 millions years.

#3

Sharks have evolved and changed much over millions of years. However many sharks today still share some of the features as sharks from millions of years ago.

#4

Sharks have been in our oceans for over 400 million years. Some of the earliest sharks were discovered dating back to the Devonian age.

#5

Sharks have survived five massive planet extinction events. These extinction events killed most life on earth and the last one around 65 million yeas ago killed the dinosaurs.

#6

There are over 500 species of shark.

#7

It is believed that each whale shark's pattern is unique, like a human's fingerprint.

#8

Sharks do not have bones. Instead, they have cartilage, that's what makes up human noses and ears

#9

According to the Smit.hsonian, there are over 500 known shark species, though many are endangered or declining due to various factors like overfishing.

#10

Your odds of getting attacked and killed by a shark are 1 in 3,748,067. In a lifetime, you are more likely to die from fireworks or lightning. Whereas over 100 million sharks are killed every year by humans.

#11

Whale sharks are the world’s biggest fish.

#12

Sharks mature slowly and reach reproductive age anywhere from 12 to 15 years.

#13

Hammerhead sharks' eyes are on the sides of their heads, so they have nearly a 360-degree sight line. Their panoramic view of the undersea world is inhibited by two blind spots, one in front of the snout and the other directly behind the head.

#14

Sharks predate the dinosaurs by 200 million years.

#15

Great whites can detect one drop of blood in 25 gal (100 L) of water and can sense even tiny amounts of blood in the water up to 3 mi (5 km) away.

(sorry if this took a lot of time but i had search somethings)

Have a nice day!

Answer:

Explanation:

Answer:

The football will hit the ground 2.11 seconds later.

Explanation:y = y0 + v0yt + ½ayt

2

0 = v0sin  t + ½ayt

2

0 = t(v0sin + ½ayt)

t = 0 or v0sin + ½ayt = 0

½ayt = – v0sin

=

−20sin

=

−2(18.0)sin(35.0°)

−9.8

Answer:

Kinetic energy and Potential energy

Explanation:

Thank you

Answer:

B.

obsessive-compulsive disorder

Explanation:

The types of somatoform disorders does not include the obsessive-compulsive disorder.

Somatic symptom disorder (SSD should be called as the somatization disorder or somatoform disorder. It is the form of mental illness that leads into one or more symptoms such as pain.

Therefore, it include the conversion disorder, somatization disorder, hypochondrias

Hence, the option b is correct.

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Answer: esto se deve a la monotonia por ejemplo el trabajo hacer eso todos los dias es estresante

tambien puede ser devido a problemas personales por ejemplo un divorcio la muerte de algun familiar.

o pueden ser las condiciones de vida que se poseen

Explanation: