In humans, a widow’s peak hairline is determined by the dominant allele (W), and a straight hairline is determined by the recessive allele (w). If a male is heterozygous for a widow's peak and a female has a straight hairline, what is the probability they will have a child with a straight hairline?
100%
50%
75%
25%
PLSSSS HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
A
Explanation:
Fertilizations occurs in the fallopian tube.
Point "a" is located where the fallopian tube is at
Hence, fertilization is most likely to occur at point A
NEED BIG HELP 30 POINTS a please hurry and no links. Please make the answer correctly.
3. How do gases from the air help break down rocks?
4. How does erosion make more soil? *
5. Explain how erosion can be helpful to the environment. *
6. Explain how erosion can be harmful to the environment. *
Answer:
3) Chemical weathering changes the molecular structure of rocks and soil. For instance, carbon dioxide from the air or soil sometimes combines with water in a process called carbonation. This produces a weak acid, called carbonic acid, that can dissolve rock.
4) Soil erosion is a gradual process that occurs when the impact of water or wind detaches and removes soil particles, causing the soil to deteriorate. The impact of soil erosion on water quality becomes significant, particularly as soil surface runoff. Sediment production and soil erosion are closely related.
5) Natural soil erosion can play a beneficial role in the environment too. ... The erosion also helped cleanse the soil of any useless materials, such as rotting tree matter or nutrient-less dirt from the area. The replaced soil can often become nutrient-rich and help plant life thrive.
6) The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species. And degraded lands are also often less able to hold onto water, which can worsen flooding.
Explanation:
Describe the dangers faced by prehistoric hominids.
Answer:
Our ancestors met astonishing challenges in their surroundings, and were susceptible to disease, injury, and predators. Environmental change – one of the ongoing challenges to survival – created both risks and opportunities in the lives of early humans.
Explanation:
what is the purpose of DNA?
A. manufactures proteins
B. reduces activation energy
C. stores hereditary information
D. to aid in facilitated diffusion
Please help me, and only answer if you know the answer. Thanks! :)
Answer:
c ok your welcome my friend
What important decomposer did the econauts leave out of the biodome and why was that important?
Answer:
Explanation:
Which geologic feature is most likely to form at a mid-ocean ridge?
Answer:
A volcano
Explanation:
Answer:
Plate Tectonics
Hope this helps!
Why do you think DNA evidence is the best evidence for determining how closely related organisms are?
Answer:
DNA evidence can show the evolution patterns of organisms, the relationships among species, and how evolution occurs. Because of this, DNA evidence can show how closely related organisms are by comparing DNA and genetic codes to show their shared ancestry and how they evolved.
Hope this helps! :)
Rift valleys can form when fractures in Earth’s crust widen. The valley walls slowly move at a rate of only a few millimeters a year. Which of these best describes the type of tectonic activity that forms rift valleys?
Answer: When fractures in the earths crust widen
Explanation:
A patient who was in a car accident has lost their sense of smell. Which part of the brain is likely injured?
medulla
brain stem
cerebrum
cerebellum
Explain if you want brainliest
Answer:
There are three primary areas of the brain that control your sense of smell: The orbitofrontal cortex, located above and behind the eyes. The insula, which lies beneath the ears. The piriform cortex, located between the other two. Besides these three areas, there are smaller brain regions that also play a part in smell.
__________is the most important condition for fossilization.
please help me answer this question
Answer:
one/more than one trait in the polar bear
Explanation:
Because it was talking about hair cells
The folded mountains is an example of which type of plate boundary?
Answer: Contential Crust
Explanation:
The graphic shows a model of a cell.
Select THREE correct statements that explain how the cell membrane contributes to the function of the cell.
A
The cell membrane controls the activities of the cell.
B
The cell membrane only allows beneficial molecules into the cell.
C
The cell membrane is capable of receiving and recognizing chemical signals.
D
The cell membrane separates cellular contents from the outside environment.
E
The cell membrane is a barrier that keeps all harmful substances from entering.
F
The cell membrane controls the movement of molecules into and out of the cell.
Answer:
F
E
B
Explanation:
I'll give brainliest to the person who gets it right with an explanation!
Which of the following is NOT a true statement about herbivores, carnivores, or decomposers?
Herbivores eat plants.
Omnivores eat other animals and dead organisms.
Decomposers break down dead organisms to release matter back into the environment.
Carnivores eat other animals.
Omnivores eat other animals and dead organisms is the wrong statement.
Omnivores are the animals which can eat both plants and animals.
1. combination of DNA may survive environment changes.
is this an advantage or disadvantage of internal fertilization ?
is this an disadvantage of external fertilization ?
is this an advantage or disadvantage of asexual and sexual reproduction ?
is this an disadvantage of asexual reproduction ?
pls answer this. thank you very much
Answer:
C
Explanation:
If you had shown mitosis in a plant cell instead of an animal cell, which feature would you have to change ?
How do seasons compare in the northern and southern hemispheres?
Answer:
When it's summer in the northern hemisphere, it's winter in the southern hemisphere, and other such.
Explanation:
Assess It! Question #2: Which of these activities is not related to the digestive system?
A. Absorbing nutrients into the bloodstream from the small intestine
B. Breaking down food particles into smaller particles
C. Moving solid waste through the body to get rid of it
D. Delivering nutrients to the cells via the bloodstream
Answer:
D. Delivering nutrients to the cells via the bloodstream.
Explanation:
PLZ ANSWER WILL BE MARKED BRAINLEST
Answer:
Iam not sure but I think it's position Y
Present-day India is in South Asia, at the northern end of the Indian Ocean. What evidence found in India matches that of other locations?
Answer:
Pieces of evidence to support the hypothesis of continental drift. Mountain ranges near those continents' coasts seemed to line up, as though they had been made in the same place and at the same time!
Explanation:
if one test tube is being heat up by a bunsen burner and connected to another test tube that is not being heat up. Why would there be a flatline at one of point of their boiling point?!
Answer:
.
Explanation:
.
Describe how the water molecules acted in the ice tray in the freezer
Answer:
Water is held together by hydrogen bonds, the strongest of inter-molecular forces. This is where a hydrogen atom in one molecule is strongly attracted to an electronegative atom (in this case, oxygen) in the other. When enough energy is absorbed by H2O, the molecules vibrate so vigorously that these bonds are loosened, giving them space to bounce around. This forms the liquid we all call and consider “water”.
Explanation:brainlest plz?
The molecules are moving because they have energy so as the liquid cools down, the amount of energy is reduced and the molecules start moving slower. When the temperature of water reaches about 0°C, the molecules stick together and form a solid – ice.
What is Solidification?When the ice cube tray which contains water in liquid state is placed in the freezer, it gets converted into solid ice cubes due to decrease in temperature and this process of changing liquid to solid state is called solidification.
It is a phase transition where a liquid turns into a solid when its temperature drops below the freezing point. This established definition of freezing means the solidification of a liquid or liquid material of a substance by a phase change which occurs due to cooling.
Thus, the molecules are moving because they have energy so as the liquid cools down, the amount of energy is reduced and the molecules start moving slower. When the temperature of water reaches about 0°C, the molecules stick together and form a solid – ice.
Learn more about Solidification, here:
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Henry visits his aunt's house on Jacksonville Beach several times a year. He notices how much sand is between the ocean and the seawall in June. During July, there is a hurricane. In September, Henry notices that there is much less sand between the ocean and the seawall. What is the best explanation as to what happened to the sand?
A.
The wind from the hurricane destroyed the sand.
B.
The heavy rains from the hurricane packed the sand down.
C.
The hurricane created giant waves that washed away the sand.
D.
The hurricane damaged the sea wall, and the sand behind it washed away.
The beaches are water body that is characterized by the presence of sand barriers. The sand was reduced as the giant waves created by the hurricane, washed it away. Thus, option C is correct.
What is a hurricane?Hurricane is a natural disaster also called a tropical cyclone that is characterized by a storm system with a center having low pressure and the surrounding strong winds with a spiral rotatory movement. This leads to heavy rain and winds.
The hurricane in the oceans causes giant oceanic waves to form, that comes to the seawall and take sand away with them. This leads to a decrease in the sand from the beach area. The waves wash the sand from the land, as the seawater is pushed on the seashore by heavy rains and storms.
Therefore, option C. hurricane washes the sand off the coast.
Learn more about hurricanes, here:
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Summarize the functions of blood below by providing a description:
Protection
Transportation
And temperature regulation
If anyone could help me with this I say thank you!
Explanation:
Blood has various functions that are central to survival. They include:
supplying oxygen to cells and tissuesproviding essential nutrients to cells, such as amino acids, fatty acids, and glucoseremoving waste materials, such as carbon dioxide, urea, and lactic acidprotecting the body from diseases, infections, and foreign bodies through the action of white blood cellsregulating body temperaturecomplete the sentence. The DNA strands are coiled around ________. This allows DNA to be packaged very efficiently.
a. proteins
b. other DNA molecules
c. chromosomes
d. nucleotides
Answer:
a. Proteins
Explanation:
Chromosomes are made up of DNA tightly coiled many times around proteins
Answer:
proteins I think I know its now D
Hey, I need to know what states each number and letter represents ASAP. Pretty sure this is on the Chesapeake Bay Watershed. No files please. Thanks!
I will give brainliest and thanks to the first person to answer! :) What were the econauts in the biodome doing with their dead matter and how is it connected to the decomposers?
Answer:
Explanation:
the Econauts constructed an ecosystem sealed under glass—a biodome. Recently, the group noticed an ominous decrease in the populations of organisms: the ecosystem appeared to be in the process of collapsing. The occupants were safely removed from the biodome, but the cause of the crash is still a mystery.