pllsssssss help i will mark brainliest
Answer:
EU genes enclosed in nuclei, contain organelles,
BOth rigid cell wall, bacteria, divide by mitosis
Pro genes float fee in cytoplasm
Explanation:
Can you guys please help me with this question?❤️
Answer:
With less oxygen, the abnormal hemoglobin S gene can cause rigid, nonliquid protein strands to form within the red blood cell. These rigid strands can change the shape of the cell, causing the sickled red blood cell that gives the disease its name.
Answer:
B. Inheriting a specific gene
Explanation:
Sickle cell anemia is a genetic disorder whose gene likely originated in places where illnesses like malaria are common; the sickle cells help prevent people from getting sickened as bad in that case.
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Question: How is wind speed and direction related to air temperature?
1. Think about it Imagine a pocket of air over the land ("land air"), and another pocket of air
over the ocean ("ocean air").
A Which air pocket would you expect to heat up more during the day?
Why?
B
Which air pocket would you expect to cool down more at night
Answer:
The wind moves from regions of lower air temperature to regions of higher air temperature because of a pressure differential set up by the two air masses
Explanation:
Relationship between wind speed and direction to air temperature:
wind flows from regions of lower air temperature to regions of higher air temperature because of a pressure differential set up by the two air masses.
A. The land air will heat up more during the day. This is because the land has a lower specific heat capacity than water, hence increases a lot more rapidly in temperature than the sea when the sun comes up.
B. The air packet over the land will cool down more rapidly at night due to the lower specific heat capacity of land when compared to the sea.
Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution?
Answer:c
Explanation:
c
Embryology is used in evolution because similar structures often also exhibit a common evolutionary origin.
Embryology refers to the discipline that studies the early development of an organism.Evolution is a biological process associated with descendence with modification, thereby evolutionary close organisms share similar features.Embryology often evidences evolutionary relationships due to the resemblance between structures found in different organisms.In conclusion, embryology is used in evolution because similar structures often also exhibit a common evolutionary origin.
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Assessment started: undefined.
Item 1
Which example is the best description of an adaptation?
a heritable characteristic that helps an organism avoid predators
a heritable characteristic that helps an organism find food
a heritable characteristic that helps an organism survive and reproduce
a heritable characteristic that evolves
Answer: a heritable characteristic that helps an organism survive and reproduce
Explanation:
lipid production; increases in liver cells as a response to regular alcohol or barbiturate consumption
Answer: Lipid production occurs at slower rate.
Explanation:
The ethanol or ethyl alcohol is a hepatotoxic which involves the redox changes in the NADH that results due to the oxidation of the alcohol dehydrogenase enzyme. It affects the metabolism of the lipids, amino acids, carbohydrates and proteins in the body. As the liver cells get engaged in metabolism of regular alcohol or barbiturate. The liver cells get damaged in this process. The ethanol is metabolized into acetaldehyde. So, the lipid production as a metabolite occurs at a slower rate.
Select the correct answer.
Density is mass divided by volume (d = m ÷ v). Based on the graph, what happens to a fixed mass of water when it is cooled from 4°C to 0°C?
A.
volume increases and density decreases
B.
volume decreases and density increases
C.
volume increases and density increases
D.
volume decreases and density decreases
Answer:
The answer is A, Volume increases and density decreases
Explanation:
When water is cooled from 4°C to 0°C, the volume of water increases and density decreases. Thus, the correct option is A.
What is the Density of water?The density of water may be defined as the weight of the water per unit volume, which depends on the temperature of the water. The normal density of water is 997 kg/m³.
When the temperature of liquid goes down, the density of its gradually decreases, as a result of this, the volume considerably increases.
Therefore, the correct option for this question is A.
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What is a convergent boundary? Name one example of a convergent boundary.
Answer:
The Washington-Oregon coastline of the United States is an example of this type of convergent plate boundary.
Which of the following describes how Earth's atmosphere changed during Precambrian time?
A. The amount of carbon dioxide increased.
B. Torrential rains never reached the surface until the Paleozoic era.
C. The amount of oxygen increased.
D. Precambrian oxygen was quickly used up by plants.
Answer:
c
Explanation:
During Precambrian time, The amount of oxygen increased in the earth's atmosphere. Therefore, option C is correct.
What is the Precambrian time period?From roughly 4.6 billion years ago, when Earth first started to form, to the start of the Cambrian Period, 541 million years ago, is the Precambrian Period. It is the earliest era which is followed by the Cambrian period.
Large objects bombarded the Precambrian Earth, the crust was split into the first continents and ocean basins, crustal plates were mobilized, the atmosphere changed from reducing to oxidizing, and early life began and evolved. Climate and geologic events are responsible for the end of this period.
During this period, the amount of oxygen increased rapidly. Therefore, option C is correct.
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plz help! What is the specific function of signal cells releasing chemical messages to nearby cells during early embryonic development?
The chemical messages will impact the cells, resulting in change to gene expression.
The chemical messages will facilitate the transfer of mRNA.
The signaling cells will initiate programmed cell death in nearby cells.
The signaling cells will prevent DNA mutation in nearby cells.
Answer: the chemical messages will impact the cells resulting in change to gene expression
Explanation:
The specific function of signal cells releasing chemical messages to nearby cells during early embryonic development is the chemical messages will impact the cells, resulting in a change in gene expression. The correct option is A.
What is embryonic development?The growth and formation of the human embryo are known as human embryonic development or human embryogenesis. It is distinguished by early developmental processes in the embryo, such as cell division and cellular differentiation.
The endoderm, mesoderm, and ectoderm are three germ layers that develop throughout this process, known as gastrulation. Different components of the organism will develop from the cells in these three levels.
Therefore, the correct option is A, The chemical messages will impact the cells, resulting in a change in gene expression.
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What is the definition of Stabilizing selection, directional selection and disruptive selection (make your sentence short and in your OWN words)
Answer:
Stabilizing selection is a type of natural selection in which the population mean stabilizes on a particular non-extreme trait value.
directional selection is a mode of natural selection is an extreme phenotype is favored over other phenotypes.
Disruptive selection describes changes in population genetics in which extreme values for a trait are favored over intermediate values.
25POINTS HELP!!!!!!!!!!!!!!!!!!!
Answer:
kj
Explanation:
uhhhhhh i think the answer is 2+-43
How does endoplasmic reticulum arise?.
Explanation:
it arrises from the nucleus. that is why most of the eukaryotic cells have endoplasmic reticulum. The membranes of the ER are continuous with the outer nuclear membrane
When resources are stable over a long period of time, a species' population can be expected to
O die out.
o increase.
O stay the same.
O decrease.
In an environment with stable availability of resources, the population can still grow because there are enough resources for this population to survive. Option B. The species' population can be expected to increase.
This question is related to growth models.
Logistic growthA growing population that inhabits a limited space is gradually affected by density, rebounding in the multiplication rate.
The population growth per capita rate decreases as population size increases.
The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.
Carrying capacityCarrying capacity refers to the maximum point at which the environment can support a growing population.
K is a constant. It coincides with the population size when natality rate and mortality rate are equal to each other. This is the equilibrium point.
• If the population size, N, is inferior to K (N<K), the population can still grow.
• When N approximates to K, the population´s growth speed decreases.
• When N=K, the population reaches equilibrium,
• When N is superior to K (N>K), the population must decrease in size because there are not enough resources to maintain that size.
So when the population size exceeds K, carrying capacity makes the population decrease in size.
But if there is a constant availability of resources, the population can still grow because there are enough resources for this population to survive. In this situation, N<K.
When resources are stable over a long period of time, a species' population can be expected to INCREASE. Option B.
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How is a sanitary landfill different from a dump?
Answer:
D. It has a clay liner unlike a normal dump
6. The milk snake and the coral snake both have red, yellow, and black alternating stripes. In the milk snake, black
stripes separate bands ti red and yellow. In the coral snake, yellow stripes separate black and red bands. The
milk snake is non-venomous, but the coral snake is highly venomous. How are these snakes an example of
coevolution?
The coral snake and the milk snake form a mutualistic symbiosis.
* The coral snake and the milk snake have both evolved to eat the same types of prey.
The coral snake is selectively favored by mimicking the non-venomous milk snake.
The milk snake is selectively favored by mimicking the venomous coral snake.
Answer: D. The milk snake is selectively favored by mimicking the venomous coral snake.
Explanation: Good luck! :D
Answer:
D
Explanation:
A(n)
is a group of organisms that can mate and produce offspring that can mate.
Answer:
Species
Explanation:
Brainliest?
pls help how do i compare the aspect of an autograft to that of an allograft
Answer:
The correct answer is - A patient's own tissue - an autograft and tissue from another person - an Allograft.
Explanation:
If the bone or the tissue is transferred from one point of the body to another point of the same person's body, this is called an autograft and is also thought of as "gold standard". It has a low level of risk in comparison to other grafts. It is used for surgical reconstruction.
An allograft is the transfer of the tissues or bone of an individual to the body of another individual of the same species during the surgical process. This type of graft has some risk of compatiblity.
Order of steps to describe the replication of DNA in a cell
Answer:
basically, step 1 is the second row
step 2 is 3rd row
step 3 is 4th row
and step 4 is the 1st row
Explanation:
The movement of the ________ causes the crust to break apart into large plates.
A) mantle
B) crust
C) outer core
D) inner core
Answer:
mantle maybe
..!°π°!..
Which of the following statements is true?
Answer:
3rd one humans and Chimpanzees both evolved from a common ancestor
After earthquakes, hot springs sometimes stop bubbling, and new hot springs form. Why might this be
Answer:
The magma moved. The crystaline water is no longer being heated by the magma so it stops being a hot spring.
Answer:
The magma melts
Explanation:
DNA is found in every cell of an organisms body.
This is true
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what kingdom always lives in water
Answer:
plantae kingdom
Explanation:
plantae kingdom which consists of trees, bushes, vines, flowering plants, ferns and moss among other living organisms. Many plants are aqueous, meaning that they survive and thrive in water whether it be fresh or salt water.
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Answer:
plantae kingdom
Explanation:
What is the name for a full moon that is getting larger getting smaller
Answer:
That's called a Waning Crescent.
Which organelle controls what goes in and out of the cell? *
Mitochondria
Cell Membrane
The organelle that controls what goes in and out of the cell is the cell membrane, which is present in the second option. The cell membrane is the outer protective layer of the cell that does this function.
What is the role of the cell membrane?The cell membrane is the membrane that acts as the selective barrier for the cell, and through it, substances can enter and exit the cell. When energy is spent for the molecule to move, it is referred to as active transport; when it is not spent, it is referred to as passive transport.
Both eukaryotes and prokaryotes, as well as fungi, have different cell membrane compositions; some have more lipid content, some have less, some have cholesterol, and some don't. The lipids and proteins are arranged in such a way as to maintain cell homeostasis.
Hence, the organelle that controls what goes in and out of the cell is the cell membrane, which is present in the second option.
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The inheritance pattern for an autosomal dominant trait is shown in the pedigree. Shaded symbols represent individuals that express the dominant trait. Based on this pedigree, what are the most likely genotypes of individuals I-1 and I-2? I-1: aa I-2: Aa I-1: AA I-2: Aa I-1: Aa I-2: aa I-1: aa I-2: AA
Answer: c
Explanation:
How does the lipid portion help maintain water concentration on each side of the bilateral?
Answer:
Explanation:The phospholipid bilayer formed by these interactions makes a good barrier between the interior and exterior of the cell, because water and other polar or charged substances cannot easily cross the hydrophobic core of the membrane. Can water cross the plasma membrane at all?
It also helps the cell move things in and out. The cell membrane is made of what is called a phospholipid bilayer, which means it has two layers of phospholipids. ... This allows the phosphates to be exposed to water, either in the cell or the environment, while the lipids are protected from water Lipids are essential for all life on Earth. They play many important roles in maintaining the health of an organism. Arguably the most important function lipids perform is as the building blocks of cellular membranes. Other functions include energy storage, insulation, cellular communication and protection.Large quantities of water molecules constantly move across cell membranes by simple diffusion, often facilitated by movement through membrane proteins, including aquaporins. In general, net movement of water into or out of cells is negligible.
Which correctly shows the temperature relationship among the layers of the Sun?
Answer:
The inner layers are the Core, Radiative Zone and Convection Zone. The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona.
Explanation: The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona.
2. Can humans exist if one level of biological organization is absent?
Answer: No because each have an important impact on humans.
Explanation: