15. Unlike identical twins, fraternal twins
A. are produced from two identical embryos.
B. result from the same fertilized egg.
C. are always the same sex.
D. result from two eggs fertilized by different sperm.
Mark for review (Will be highlighted on the review page

Answers

Answer 1
Correct answer is c

Related Questions

What happens when new data call current scientific explanations into
question?
A. Scientists repeat the experiments to prove that the new data are
unreliable.
B. Scientists repeat the experiments to verify results and reevaluate
scientific explanations.
C. Previous explanations are thrown out immediately.
D. Scientists ignore the new data because the findings are clearly
false.

Answers

Answer:

B. Scientists repeat the experiments to verify results and reevaluate

scientific explanations.

Explanation:

This is kind of process of elimination. Scientists don't move onto new ideas with out proof so C it out. They wouldn't just ignore new data so it's not D. Between A and B, B seems most likely because when scientists look into new data they wouldn't necessarily have the mindset of trying to prove that it is unreliable. They just want to confirm and learn.

I know this is late for an answer but I wanted to provide one anyway. :)

Helpp !
The nervous system interacts with the endocrine system by _
O A. translating messages from endocrine cells
O B. sending neurotransmitters to endocrine target cells
O C. sending neurotransmitters to neuroendocrine cells
D. receiving messages from hormones

Answers

Answer:

B. sending neurotransmitters to endocrine target cells

Explanation:

Your endocrine system works closely with your brain and central nervous system to control the creation of specific hormones and enzymes.

_______ recycle dead plants and animals by turning them into minerals and nutrients for the soil.
A.
Green plants
B.
Decomposers
C.
Predators
D.
Herbivores

Answers

It is Decomposers as they eat whatever is dead
Decomposers because when plants and animals die they become food for decomposed like bacteria. They recycle dead plants and animals into chemical nutrients like carbon and nitrogen that are released back into the soil, air and water.

what are 4 effects of global warming

Answers

The four effects of Global Warming are mentioned above. But there are also many effects of Global Warming.

Which kind of bond is formed when electrons are shared between
atoms?
O A. lonic
O B. Covalent
O G Metallic
O 0 Hydrogen

Answers

Answer:

A. Ionic

Because an ionic bond is a type of chemical bond made  through an electrostatic attraction between two oppositely charged ions.

Hoped I helped -

Sleepy~

The birds shown above have beaks with three different shapes and sizes. These genetic variations in the beak each appeared initially due to

Answers

Answer:

mutations

on edge

It was Charles Darwin who called the birds seen on the Galapagos islands as the finches. These birds show a remarkable diversification in their beak based on their chief food.

What are Darwin's Finches?

Charles Darwin observed a group of small sparrow like black birds with strong, short beaks which are known today as Darwin's finches. These finches varied on different islands, but they were closely related to one another.

These finches evolved from a common ancestors to have different beaks well suited for different types of food they feed on. Generally long and pointed beaks are suitable for seed and cactus feeders. Even some short beaked finches tear up the base of the cactus and feed on its pulp.

The slender and sharp beaks are common in insect eating finches. The process by which they successfully evolved and radiated to different habitats is called the adaptive radiation.

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Your question is incomplete most probably your full question was:

Some birds have beaks with three different shapes and sizes. These genetic variations is the result of which theory?

Which are limiting nutrients for plant growth?

Answers

Answer:

Macro nutrients that commonly act as limits on plant growth, Nitrogen, Phosphorous,and Potassium. Hope this helps out.

Explanation:

Answer:

phosphorus and nitrogen

Explanation:

edge

Question 1 of 10
2 Points
Blood has traveled from the heart to the fingers. Which describes the next
step of the circulation process?
A. The blood travels to the lungs to get carbon dioxide.
B. The blood returns to the heart through veins.
C. The blood releases oxygen on the way back to the heart.
0
D. The blood goes through the liver to be cleaned.
SUBMIT

Answers

Answer:

The blood returns to the heart through veins.

Explanation:

Blood returns to the heart from the body through the Vena Cava and from the lungs through the Pulmonary Vein . So mainly blood returns to the heart through Veins.

hope this helped!

Why did Owens and Darwins have quarrels and stopped being friends

Answers

Answer:

Explanation:

probably because they misunderstood eachother

and they can't stand each other again

They had different ideas and theories on the same topics, many described them as “bitter enemies “

Describe the location of the kneecap to the knee joint

Answers

Answer:

superior

Explanation:

The minerals diamond and quartz can both be colorless. However, diamond will scratch quartz, while quartz will not scratch diamond. This is because each has a different _______.
A.
streak color
B.
hardness
C.
breakage pattern
D.
crystal structure

Answers

Answer:

B

Explanation:

Diamond is the highest on the hardness scale, while quartz is lower, only a diamond can scratch a diamond

Answer:

diamond is harder than quartz so that would be b hardness.

HELPPPP
can someone tell me 2 producers, 2 primary consumers, 2 secondary consumers, 2 tertiary consumers and 2 quaternary consumers in a freshwater lake.

Answers

Answer:

hope it helped

Explanation:

2  producers are bacteria and algae

2 primary consumers are microscopic zooplankton and snails

2 secondary consumers are fish and stonefly

2 tertiary consumers are eels and trouts

2 quaternary consumers are some very large birds like the eagle and other big fishes like shark or reptiles like crocodiles and so on

Answer:

2  producers are bacteria and algae

2 primary consumers are microscopic zooplankton and snails

2 secondary consumers are fish and stonefly

2 tertiary consumers are eels and trouts

2 quaternary consumers are some very large birds like the eagle and other big fishes like shark or reptiles like crocodiles and so on

How could igneous rock become sedimentary rock? Where might you see an example of this?

Answers

Answer:

igneous rock becomes sedimentary rock from weather and other elements.

Explanation:

For example: When a volcano erupts and lava spews out it hardens and becomes igneous rock but when the volcano erupts again as the lava flows over the igneous rock again it becomes sedimentary rock.

hope that makes sense

Answer:

An igneous rock is crushed into little shards of rock called sediment, the sediment is then packed together by other rocks or strong forces, that form together to make a Sedimentary rock

Explanation:

Which occurs when the body response to the environment by maintaining a stable internal environment despite changing external conditions

Answers

Answer:

homeostasis

Explanation:

Responding to the environment by maintaining a stable internal environment despite changing external conditions is characteristic of living things. The maintain of stable internal environment called homeostasis. Other characteristics of living things are: the possibility to produce, one or more cells, the possibility to grow and develop...

i hope i answered your question!

thanks,

Michael

The answer is Homoetisos

modeling the carbon cycle assignment Include short phrases on your poster that summarize what occurs at each stage of the carbon cycle. help

Answers

Processes in the carbon cycle
Carbon enters the atmosphere as carbon dioxide from respiration and combustion. Carbon dioxide is absorbed by producers to make glucose in photosynthesis. Animals feed on the plant passing the carbon compounds along the food chain.

Why is an overabundance of nutrients harmful to a water supply?
A.
It decreases the number and types of aquatic plants.
B.
It kills all aquatic plants.
C.
It sterilizes water.
D.
It causes excessive aquatic plant growth.

Answers

Answer:

d

Explanation:

It leads to a process called as eutrophication in which the aquatic plants grow regularly over the water surface and the living beings living inside the water gets diminished because of the lack of nutrients and the various substances required for the growth.

What is water sterilization ?

It is the process in which the harmful substances and contaminants are removed outside the water source such that the water can be removed out from water resources such that they can be made appropriate for drinking.

An overabundance of various nutrient primarily nitrogen along with phosphorus in water begins a process known as eutrophication. The process hammers the growth of other lives present on the sources.

Algae feed on nutrients, growing, spreading  and turning out the water green. Algae blooms smells bad, blocks sunlight and even releases out  chemicals in certain cases.

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A type of cellular transport is shown. Which description best identifies this type of cellular transport? Your answer: Osmosis, because energy is being used to move molecules with the concentration gradient. Active transport, because energy is being used to move molecules against the concentration gradient. Facilitated diffusion, because energy is being used to move molecules with the concentration gradient

Answers

Answer:

Active transport, because energy is being used to move molecules against the concentration gradient.

Explanation:

This picture shows active transport. That just means that energy is being used (in this case, ATP) to move molecules against their gradient (meaning, from low to high concentration). Molecules "naturally" diffuse from high-->low concentration, so to move in the opposite direction requires energy input. You can tell this because there are only 2 molecules on the top side of the membrane, but on the bottom side there are 13.

Why not A: This is not necessarily water, as in osmosis, and it's not going with the gradient.

Why not C: This is not facilitated diffusion, because molecules are going against, not with, their concentration gradient.

The description that best identifies this type of cellular transport is: Active transport, because energy is being used to move molecules against the concentration gradient.

WHAT IS ACTIVE TRANSPORT:Active transport is a type of transport that requires the input of energy in form of ATP. This is because the movement of molecules is against a concentration gradient.

According to the diagram in this question, molecules are being moved into the cell with an input of ATP (energy).

Therefore, the description that best identifies this type of cellular transport is: Active transport, because energy is being used to move molecules against the concentration gradient.

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1.Explain the kingdom of protozoa and fungi
note that they are different kingdom
2.Explain the difference of bacteria and virus

Answers

Answer:

Explanation:

Kingdom Protozoa, as defined in this scheme, does not form a natural group or clade, but a paraphyletic group or evolutionary grade, within which the members of Fungi, Animalia and Chromista are thought to have evolved.

11. This picture shows the surface weather model at a particular location.

What type of weather is most likely expected at the location? (3 points)
fog
snowfall
hurricane
thunderstorm

Answers

The answer for the question “what type of weather is most likely expected at the location” is fog

By which process are fossil fuels formed?

Answers

Answer:

A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion. ... Fossil fuels contain high percentages of carbon and include petroleum, coal, and natural gas.

HOPE IT HELPS : D

Explanation:

Select the correct answer. Neurofibromatosis, a genetic disease caused by mutation on the NF1 gene, follows an autosomal dominant pattern of inheritance. The diagram shows that the father carries two copies of the defective gene and the mother is unaffected. What percentage of offspring will have neurofibromatosis? a diagram showing a father who has the disease neurofibromatosis (alleles RR) and the mother is unaffected (alleles rr) A. 0% B. 25% C. 50% D. 100%

Answers

Answer: c 50% not sure though but its a try

Explanation:

Answer:

its D) 100%

Explanation:

I just got a 100% on the test

During which step of the water cycle does water combine with pollutants on
Earth's surface?
Precipitation
Transpiration
Evaporation
Runoff
Water is taken in
by animals
Plants take up water
from the ground
Percolation
A. Transpiration
B. Percolation
C. Runoff
D. Precipitation

Answers

C because the water is flowing from the mountains so trash can come down with it

Runoff is a step in the water cycle where the water combines with pollutants on Earth's surface. Therefore, the correct statement is option D.

Plants take up water from the ground through transpiration process. Therefore, the correct statement is option A.

What is runoff water cycle?

During the water cycle, when water combines with the pollutants present on the surface of the earth, the process is called runoff. During runoff, water comes from the melting snow or other resources and moves towards the surface of the land, thereby, carrying pollutants and other chemicals along with it from urban or agricultural areas and ultimately carried the pollutants into streams and rivers, and eventually into lakes and oceans.

Therefore, runoff water causes various harmful effects on human health as well as aquatic life. Therefore, runoff water should be properly treated to prevent pollution.

Plants take up water from the ground through a process called transpiration where water present in the soil gets absorbed by the roots of the plants and then further transported to the top of the plant through the stem and also into the leaves.

Therefore, runoff is a step in the water cycle where the water combines with pollutants on Earth's surface and plants take up water from the ground through transpiration process.

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Which climatic zone is always hot and humid? arid, tropical wet, temperate continental, Mediterranean

Answers

Answer:tropical wet, is the anwers

Explanation:

The tropical wet climate zone is the climate zone that is consistently hot and humid. This climate zone is characterized by year-round high temperatures and high humidity, with average temperatures of 80°F (27°C) or more, and annual precipitation of 59 inches (1,500 mm) or more.

What is tropical wet climate zone?

The tropical wet climate zone is a type of climate that can be found in areas close to the equator. It is distinguished by high temperature, year-round high humidity and abundant rainfall. Equatorial climate or tropical rainforest climate are other names for this climate zone.

One of the most ecologically diverse regions on Earth is the tropical wet climate zone, which is also an important supplier of natural resources such as timber, fruits and medicinal plants. Deforestation, climate change, and other human activities also pose threats to the region, and they have the potential to have major impacts on the natural and economic systems that depend on this climate zone.

Therefore, the tropical wet climate zone is the climate zone that is consistently hot and humid.

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What type of consumer is the hawk

Answers

A hawk is a primary consumer

Explanation:

Hawk are secondary or tertiary consumers in a food chain. This means that they eat primary and other secondary consumers.

Hope this helps..

What are some characteristics that all animals share?

Answers

Answer:

Hunting is all i can think of

Fur, Whiskers, hunt, no fingers

A piece of string 1 cm long is longer than a piece of string 10 mm long
O True
False

Answers

1 cm is 10mm Hope this helps

A piece of string 1 cm long is longer than a piece of string 10 mm long in terms of unit of length measurement. The statement is true.

What are the unit of length measurement ?

It is an act of measuring the length of objects with some specific units and it can be standard or non-standard.

Some measuring tools like a ruler, measuring tape are used to measure the length.

The height of students  can be measured using a feet scale. Some of the units of length are inches, centimeters, meters, feet, etc

Steps followed to measure length are In step 1, the unit will be chosen to  measure length, in Step 2 the object will be placed beside the ruler starting from point 0 on it.

In Step 3 endpoint  will be marked by value.

The units of length measurement are two types such as Standard and non-standard units of measuring length.

The statement is true.

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What is the answer, help me!

Answers

Answer:

Carbon dioxide

methane

nitrous oxide

Hope this helps you

Yes that last answer is right

Raising more sustainable fish would require choosing fish species such as____?
A. Tilapia that eat algae and plants
B. Tuna that eat other fish
C. Catfish that eat fishmeal
D. Carp that eat fertilizer
E. Trout that can be easily caught

Answers

Answer:

A tilapia that eat algae and plants

A. A tilapia that eat algae and plants

Three-year-old Mara jumped off the couch and injured her right tibia (lower leg bone). The emergency room nurse said she “broke her cartilage.” Mara's mother feels relieved that Mara didn't break her bone. Two years later, Mara seems to be limping and her mother notices that Mara's right leg appears shorter than her left. What happened to Mara

Answers

Answer:

Since the daughter is getting older and taller her cartilage is getting smaller.

Answer:

She dosnt have as much cartalige in one leg than the other

Explanation:

She has broken cartalige in one. not the other.

Match the type of rock with how it forms.
Igneous
?
Released in volcanic
eruptions
Metamorphic
Can form from erosion
?
Sedimentary
?
Form because of high heat
and pressure

Answers

Igneous- made from cooling of molten rock (the first one)
Metamorphic- made from heat and pressure changing the igneous, sedimentary or metamorphic parent rock (3rd one)
Sedimentary- From weathering, erosion, deposition, compaction and cementation (2nd one)

The matching of type of rocks with respect to their formation is described as follows:

Igneous rock: released in volcanic eruptions. Metamorphic rock: formed because of high heat and pressure.Sedimentary rock: formed from weathering, erosion, deposition, compaction, and cementation.

What is a Rock?

A rock may be defined as the solid mineral material forming part of the surface of the earth and is deposited under the earth surface.

Therefore, the matching of types of rocks with respect to their formation is briefly mentioned above.

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