A forest fire caused by lightening destroys an entire forest. The population of deer was drastically reduced within the forest leading to a decrease in genetic variation. This situation is an example of -
Mutations
Gene Flow
O Genetic Drift
Divergent evolution
Answer:
I'm like 90% sure that it is Gene flow
Explanation:
Pls, Hurry up? True or False + Explain. "Sea anemones are sessile organisms and stay permanently attached to their substrate."
Answer:
True
Explanation:
Sea anemones are one of the numerous predating animals found in the marine environment. They have cylindrical bodies whose bases are usually found attached to substrates and are therefore described as being sessile. However, a few species of sea anemones are known to be free swimmers.
Generally, sessile organisms are those that live their life attached to a substrate and, therefore, are not able to freely move about.
Answer:
True
Explanation:
This is because sea anemone polyp is permanently attached to the beneath of the base where it stay by it base called pedal foot. It sometimes glide around in order to prevent itself from predation and it uses it's tentacle to catch moving food particles around it and consume it. It belong to the group cnidaria.
Please help!!!!!!!! Will mark brianlist ASAP
I'm going with C. It may be wrong but I think it's C.
Answer:
the answer is D.........
What shares ¼ of its genes with humans?
Please help!!
Does the amount energy from food eaten by each organism equal the amount of energy used but each organism?
Answer:
Ecosystem follows the 10% law.
Explanation:
The amount of energy that is available in the ecosystem is equal and same is equally distributed. Plants use solar energy and convert it into usable energy for processing food and water in tissues and reproduction and root development. Later on when the plant dies or is eaten up the dead organic matter is converted to energy that is derived by the herbivorous or primary consumer. When then (90%) lost through respiration and digestion, waste generation in the body. After which the energy left may be again taken up by some secondary consumer and only 10% energy remains while the rest is diffused in the ecosystem and environment. Thus energy is neither created nor destroyed but transformed in its form.define natural greenhouse
Answer:
the natural process that warms the earth's surface is known as natural greenhouse.
A black hybrid rabbit is crossed with a white purebred rabbit.
What is the probability of an offspring being black?
A. 25%
B. 50%
C. 75%
Answer
A. 25%
Explanation:
This is because the black hybrid would be 50% one breed and 50% another breed. Then the white purebred is 100% one specific breed. So by mating, all of those breeds that the parents have all reduce by 1/2 for the offspring.
8. In chickens, brown feathers are dominant over red feathers. Suppose we cross two heterozygous chickens.
Draw the punnett square and list the genotypes and phenotypes of the offspring.
I
Genotypes of offspring:
Phenotypes of offspring:
Plz help me
Answer:
Crossing two chickens heterozygous for the trait feather color, when brown feathers are dominant over red feathers, will produce offspring with brown and red feathers in a brown:red phenotypic ratio of 3:1.
Explanation:
Knowing that in chickens brown feathers are the expression of the dominant allele (B) and the recessive allele is red (b), crossing two heterozygous individuals (Bb) will result in offspring that are likely to have brown or red feathers.
The cross can be represented by a Punnett Square:
Bb X Bb cross
alleles B b
B BB Bb
b Bb bb
Where the result is:
Genotypes:
Bb, 50% BB, 25% bb, 25%Phenotypes:
Brown feathers, 75% Red feathers, 25%.In this case, the probability of having brown or red feathers is 3:1.
Diarrhea is defined by loose, watery stool (poop.) Diarrheal diseases kill millions of people worldwide every year. Describe how a diarrheal disease might lead to death.
Answer:
dehydration.
Explanation:
the body is loosing more fluid than it is able to keep in and extreme cases result in death
HELP ME
this is a K12 question
The weather is warm and dry.
Which change would a cold front bring?
rain or thunderstorms
extended period of rain or snow
dry air and sunny skies
several days of gray skies
Answer:
rain or thunderstorms
Explanation:
Answer: It brings rain or thunderstorms.
Hope this helps!
When one or more nucleotides are lost, this is called
Answer:
Deletion mutation
Explanation:
A deletion mutation can remove a single nucleotide, or entire sequences of nucleotides
Which two parts of sedimentary rocks formation include the breakdown and carrying away of existing rock
Answer:
weathering
erosion
Explanation:
Weathering can be explained as the
breaking down of rocks as well as minerals or dissolving it on the surface of the earth. After the rock has been broken down then the bits of the rock can be transported away in a process known as " Erosion". The agents of
weathering and erosion could be water, salt, animal as well as plants.
It should be noted that the parts of sedimentary rocks formation that include the breakdown is weathering while the parts of sedimentary rocks formation that include carrying away of existing rock is erosion.
Answer:
weathering
and
erosion
Which of the following explains why an apple looks red? The apple reflects red light and absorbs all other visible wavelengths. The apple absorbs red light, and reflects all other colors of light.. The apple is absorbs all visible wavelengths, but absorbs red light better The apple is reflects all light that hits its surface.
Answer:
The apple reflects red light and absorbs all other visible wavelengths
Explanation:
The apple is only reflecting the color red and is absorbing the other colors of light (wavelengths)
The correct explanation why an apple looks red is that the apple reflects red light and absorbs all the other visible wavelengths. Thus, the correct option is A.
What is Absorption and reflection of light?Light absorption is the process in which the light ray is absorbed by the matter and converted into a form of energy. In an atom, the electrons vibrate at a specific frequency, then this is called as the natural frequency.
Reflection is a phenomenon of light. When a ray of light approaches a smooth polished surface such as metal and the light ray bounces back, it is called the reflection of light. The incident light ray which land on the surface is reflected off from the surface. The light ray that bounces back is called the reflected ray.
Therefore, the correct option is A.
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what months can you not eat oursters
Answer:
May, June, July, and August.
Explanation:
*oysters?
The months that do not have an r you can eat oysters. The months that have an r, you cannot eat oysters, which are April, January, February, March, September, October, November, and December.
Expoisoning.
only eat oysters with a letter "r" from the the months of September thru April. I t prevents from getting watery shellfish and food poisioning.
* Do not eat oysters in May, June, July or August*
why dont children look exactly like their parents?
Answer:
because parents only give the child 1/2 of their chromosomes
Explanation:
Answer:
because not exactly all genes are passed down to the child
Explanation:
Someone plz help with all the questions
Answer:
The surface of the pond froze overnight.boughSherry needs a new break on her motorcycle before she'll be able to race.Their dog got mud in its fur from rolling in a mud puddle.factThe cell cycle begins again after
A. synthesis has copied each chromosome.
B. mitosis has formed two identical nuclei.
C. cytokinesis has formed two new cells.
D. differentiation has made cells specialized.
Answer:
C. cytokinesis has formed two new cells.
Explanation:
Cell cycle has different stages called G1, S, G2, and M. ... This is where the cell actually partitions the two copies of the genetic material into the two daughter cells. After M phase completes, cell division occurs and two cells are left, and the cell cycle can begin again.
How was early Earth's atmosphere different from today's atmosphere?
Answer:
The early Earth was very different from our Earth today.
Explanation:
Earth's first atmosphere had lots of water vapor but had almost no oxygen. Later, frequent volcanic eruptions put several different gases into the air (Figure 12.13). These gases created a new type of atmosphere for Earth.
Answer:
The atmosphere we enjoy today is radically different from the atmosphere that formed with the Earth billions of years ago. ... As the Earth cooled enough to form a solid crust (4.4 billion years ago), it was covered with active volcanos. These volcanos spewed out gasses, like water vapor, carbon dioxide and ammonia.
How has the Earth's atmosphere changed over time?
Water vapor, carbon dioxide, methane, ammonia, and other gases similar to the ones produced by volcanoes today were expelled. Over a vast amount of time, millions of years, the earth gradually cooled. ... From these clouds, the oceans formed and the oceans absorbed a lot of the carbon dioxide in the atmosphere.
Explanation:
Plz mark me brainliest
where should buildings be constructed if we want them to survive major earthquakes
Answer:
Engineers must design in structures that can absorb the energy of the waves throughout the height of the building.
Explanation:
Prokaryotic cells NEVER have a nucleus
A. True
B. False
Answer:
false
Explanation:
Answer:
The answer is A. true
Explanation:
help me out please!
Answer:
223
Explanation:
Answer:
the answer is c because it grabs carbon and turns it into oxygen which is what we breath
Analogy of Cell wall
Answer:
In school, I was taught that it is like a bouncer who controls who enters and exits the club because the cell membrane controls what is able to permeate into the cell. It’s good, but I like to think of it as a door.
If blood is in short supply which blood type would be the most beneficial to have on hand if someone needed a blood transfusion
7.
Students were investigating the movement of water through a semi-pern
with the salt concentration shown below.
Answer:
It depends on the salt concentration inside the cell.
Explanation:
The movement of water through a semi-permeable membrane with different salt concentrations depends on the amount of water and salt concentration in the cell. If the cell has more salt concentration so no more salt moves inside the cell but moves outside the cell while on the other hand, if the cell has low amount of salt than the outer environment then the salt moves inside the cell until its concentration are equal.
A young man recently learned from a genetics doctor that he had a condition called Friedreich's ataxia. This syndrome affects the arms and the legs with the person usually needing a wheel chair. Neither of his parents have this disorder. However the young man's grandfather was wheelchair bound, but didn't know why because genetic information was very limited when his grandfather grew up.
What are the genotypes of each of the individuals mentioned in this question? Create a pedigree chart to support your answer.
Answer:
i believe dominant genotypes
Explanation:
from memory sorry for no pedigree chart
Please needed as soon as possible thank you!
Answer:
hemopoiesis
It doesn't protect internal organs. All the others are functions of the skeletal system
Answer:
I think it is B)
production of blood-forming hormones.
Explanation:
All the other ones are functions of the skeletal system.
I need help on this help
Answer:
the answer is within young Padawan
Explanation:
What evidence is there that all living things are made of cells?
A cell can be described as the structural and functional unit of life. It can also be described as the building material of all living organisms.
Without the cell, most living organisms will not be able to function. An organelle will not be able to survive that long within its life span without the presence of cells. It will just withe and die off.
Lots of scientists have proved in various ways the existence of cells, this is because they have been able to create microscopes that can see these tiny cells. This is evidence that proves the existence of cells.
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Which two words would BEST replace "mimicked" and composition in the selection above WITHOUT Changing the meaning?
(A) dissolved contents
(B) located, foundation
(C)
formed, structure
(D)
resembled, makeup
Answer:
The answer is D.
Explanation:
The cell theory is a scientific explanation about the characteristics of cells in living things discovery of cells occurred in the 1600s which piece of equipment my students in science class used to investigate the cell theory
Answer:
Then, what is the question????
In 1665, Robert Hooke, a scientist published Micrographia, a book full of illustrations and descriptions of organisms observed under the recently invented microscope, hence Hooke's discovery of the cell was successful with the invention of the microscope.
What is Microscope?A microscope is defined as a laboratory instrument used to examine objects that are too small to be seen by the uncovered eye. Microscopy is the science of examining small objects and structures using a microscope. The word microscopic means invisible to the eye unless aided by a microscope.
Without the microscope, we would not know about the existence of cells or how plants breathe or how rocks change over time. Cell theory was discovered by Robert Hooke in 1665 with the help of a microscope.
Thus, in 1665, Robert Hooke, a scientist published Micrographia, a book full of illustrations and descriptions of organisms observed under the recently invented microscope, hence Hooke's discovery of the cell was successful with the invention of the microscope.
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