Answer:
Because they all have a different purpose
Explanation:
The epidermis provides a waterproof barrier and creates our skin tone.
The dermis, the middke layer of skin , contains tough connective tissue, hair follicles, and sweat glands.
The hypodermis is made of fat and connective tissue.
Many of the factors that led to the end-Permian mass extinction also contributed to the end-Cretaceous mass extinction, with the exception of ______.
Many of the factors that led to the late Permian mass extinction also contributed to the late Cretaceous mass extinction, with the exception of a meteor strike.
Permian-Triassic extinctionThe biggest mass extinction event in Earth's history occurred about 250 million years ago and wiped out 96% of marine life and 70% of land life. Known as "the great death", it was a period of extreme volcanism on the planet, in the region of Siberia.
Cretaceous-Paleogene extinctionOccurred only 66 million years ago, it decimated 75% of species. All non-avian dinosaurs were killed. Unlike the previous ones, this event was caused by an external agent: an asteroid over 13 kilometers wide plunged into Earth at 72,000 kilometers per hour.
Whit this information, we can conclude that many of the factors that led to the late Permian mass extinction also contributed to the late Cretaceous mass extinction, with the exception of a meteor strike.
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1) What types of specialized cells (cells with a specific purpose such as
cardiac or nerve cells) do you think the daphnia have? What are their
functions? List at least 2 types of cells and their function.
on systems (s
Answer:
alle and the daphina cell
Select ALL the correct answers.
Which statements correctly describe mutations in gametes and mutations in somatic cells?
O Mutations to somatic cells are transferred to daughter cells.
O Mutations to gametes are more likely to be beneficial than mutations to somatic cells.
0 Mutations to somatic cells are only present in the type of cell in which the mutation occurred.
O Mutations to somatic cells will be inherited by an organism's offspring.
O Mutations to gametes do not involve changes in the DNA.
O
Mutations to gametes can be passed on to an organism's offspring.
Reset
Next
Answer:
Mutations to somatic cells are only present in the type of cell in which the mutation occurred.
how does wrapping bananas in newspaper encourages faster ripening
Explanation:
This is most likely because the banana is in a warmer area! I dont know much about biology so hope this helps!
If the father is SS and then mother is Ss the childs genotypes are SS or Ss. Which is the right one? There can only be one and I kinda need this before 8:30 on April 28th 2022 because thats when I finish my test
what is the center of milky way galaxy?
The Milky Way galaxy is our home galaxy. It is a kind of spiral galaxy where solar system, including the Sun, the planets, asteoroids, comets along with billions of small celestial bodies are found.
WHAT IS THE CENTER OF MILKY WAY?~ The center of Milky Way galaxy is a supermassive black hole known as Sagittarius A*. This black hole was discovered in 1974 by Bruce Balick and Robert L. Brown.
Sagittarius A* can be seen in the night sky using radio telescopes within the constellation Sagittarius - a constellation discovered by Ptolemy. This black hole is so massive that it's literally equivalent to more than four million suns compressed altogether.
What do the arrows in food chains and webs represent?
A. the flow of energy between organisms in an ecosystem
B. the migration of animals in an ecosystem
C. the top predator in an ecosystem
D. the heterotrophs in an ecosystem
Answer:
A.the flow of energy between organisms in an ecosystem
What is meant by the term double circulation?
Answer: This means that two diffrent pumps in the body that work at the same same time to move blood in 2 diffrent directions
The primary sources of renewable energy in the united states are:.
The__________population of stars contains both young and old stars, all of which have heavy elementals abundances of about 2% heavy elements.
We can confirm that the Disk population of stars contains both young and old stars.
What is the disk population?This is a grouping term used to define the general grouping of stars regardless of age. As stated in the question, all of them have heavy elements abundances of about 2% heavy elements and are grouped together whether they are old or new in the star cycle.
Therefore, we can confirm that the Disk population of stars contains both young and old stars.
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are oxygen and hydrogen together a compound?
Part D
Add a few toy houses in various places along the riverbank in your model. Your houses should be on top
of the sand, and directly on the river's edge. Describe what happens to the houses over time as the water
flows through the river. Based on your observation, describe the negative impact erosion can have on
human settlements around rivers.
In task 2 I only did part D
answer:
Two independent sets of observations on sand activities in relation to the flowing river are recorded as the water passes through the meandering river. Stream abrasion can affect the morphology of a stream or river dramatically over time. Because the water can start erosion with anything near it, erosion can impact human communities near rivers.
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Which is the most likely evolutionary response of birds to a food supply of insects living in deep, narrow tunnels?.
Answer:
In trees, birds like woodpeckers have a skull where the tongue wraps around the brain so the brain does not get skaken around. When the woodpecker gets the hole large enough, it sends in its long narrown tongue to get the insect
Explanation:
Birds who look for incects in the ground hop or tap the ground with their beak to mimic rainfall. The bugs come up and the birds can eat them :)
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An example of a parasympathetic pathway is the innervation of the heart: The ____________ nerve fibers carry action potentials from the brain toward the heart.
The vagus nerve fibers carry action potentials from the brain toward the heart.
What is vagus nerve?The vagus is a nerve that performs the role in sensory, motor, and secretory functions. It contains about 80% sensory fibers. The vagus nerves comes from the brain towards the carotid artery of the heart.
So we can conclude that The vagus nerve fibers carry action potentials from the brain toward the heart.
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Comprehension Questions:
1. Photosynthesis and cellular
respiration are
cells.
chemical reactions
physical reactions
that occur in
Photosynthesis and cellular respiration are chemical reactions that occur in cells.
What is photosynthesis and cellular respiration?Photosynthesis is the process of making food through carbon dioxide, water and sunlight. It is an anabolic reaction.
Cellular respiration is the process of breaking down of food molecules by oxygen. It is a catabolic reaction.
Thus, the correct option is a, chemical reaction
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Here is a picture of a creek in a forest. Which part of this environment would
a biologist be most likely to study?
A. Rocks found in the forest
B. The source of the creek running through the forest
C. Living organisms in the forest
D. The pH of the water running through the forest
If an organism's DNA contains 33% adenine nucleotides and 17% guanine nucleotides, what percentage of its DNA is composed of cytosine nucleotides
A DNA with 33% adenine and 17% guanine nucleotides respectively will contain 17% cytosine.
Purine to Pyrimidine ratio in DNAAccording to Chargaff's rule, the ratio of purine to pyrimidine bases in DNA is constant.
Since adenine always pairs with thymine and guanine always pairs with cytosine, adenine to thymine and guanine to cytosine ratios would be constant as well.
Thus, if a DNA contains 17% guanine, it will also contain 17% cytosine.
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Unlike eutherians, both monotremes and marsupials ________.
Answer:
The answer is have some part of embryonic development outside the uterus.
Explanation:
Unlike eutherians, both monotremes and marsupials have some part of embryonic development outside the uterus.
Eye color, hair color, and skin color are polygenic traits. Polygenic traits result from.
Answer:
A polygenic trait is one whose phenotype is influenced by more than one gene. They are due to to the actions of more than one gene and often, their interaction with the environment. Hope this helped! <3
describe what a growth factor is and how it influences the cell cycle
Answer: A growth factors are a broad group of proteins that stimulate cell division. They bind to receptors that activate specific genes to trigger cell growth. … These two factors help a cell advance to different stages of the cell cycle when cells bind to each other.
What role do chemosynthetic bacteria play in deep-sea volcanic-vent ecosystems?
Answer:
Through the process of chemosynthesis, bacteria provide energy and nutrients to vent species without the need for sunlight
Explanation:
hope this helps
People who are under the influence of drugs are at greater risk of injury than those who are not under the influence of drugs.
A. True
B. False
Answer:
It is true.
Explanation:
People who are under the influence of drugs have a worse perception of their surroundings, therefore making it much easier to walk into some object and get injured.
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Plants with ovaries having only one or a few ovules are generally pollinated by
(a) bees
(b) butterflies
(c) birds
(d) wind
Answer:
a
Explanation:
bees are a primary pollinator
Answer:
bees
Explanation:
Plants having ovaries also require pollinationThey are usually honey providersSo they get attracted by the honey bees most .Option A
Name the clear watery liquid that surrounds the brain and spinal cord and fills the four cavities or ventricles of the brain.
Explanation:
cerebrospinal fluid clear watery liquid that surrounds the brain and spinal cord and fills the four cavities or ventricles of the brain.
What do the black bars represent in this spectrum?
cosmic background radiation interfering with those wavelengths
errors in collecting color spectrum of the star
wavelengths of light that are absorbed in the star's atmosphere
wavelengths of light that are invisible to the human eye
Answer:
cosmic background radiation
Explanation:
hope this helps!!
Evidence shows that some grasses benefit from being grazed. Which of the following terms would best describe this plant-herbivore interaction?
a) parasitism
b) commensalism
c) mutualism
d) competition
Answer:
mutualism, both the grazer and the grass benefit.
Explanation:
Help the question is in the green box!
Answer:
Negatively correlated. As we can see, the relationship between the two species are based off one another. When one species population increase, the other decreases and vice versa.
Explanation:
There are 2,000 mice living in a field. If 1,000 mice are born each month and 200 mice die each month, what is the per capita growth rate (rmax) of mice over a month?
round to the nearest tenth
For 2,000 mice living in a field, the per capita growth rate is mathematically given as
NT=0.4
What is the per capita growth rate (rmax) of mice over a month?Generally, the birth and death rate is mathematically given as
BT=1000/2000
BT=0.5
Where
DT=200/2000
DT=0.1
In conclusion, per capita growth rate
NT=0.5-0.1
NT=0.4
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The transfer of genes between two species that does not involve inheritance is known as.
Answer:
Horizontal gene transfer
Explanation:
is the movement of genetic information between organisms, a process that includes the spread of antibiotic resistance genes among bacteria fueling pathogen evolution
What is the molecular tool that can cut dna at specific recognition sequences so a gene of interest can be inserted into a plasmid?.
The molecular tool that can cut DNA at specific recognition sequences so a gene of interest can be inserted into a plasmid is the Restriction Endonucleases.
What is the molecular tool that can cut DNA at specific recognition sequences so a gene of interest can be inserted into a plasmid?Generally, Restriction Endonucleases are simply defined as enzymes that break the DNA next to a certain DNA sequence known as a restriction site.
In conclusion, the molecular tool that can cut DNA at specific recognition sequences is the Restriction Endonucleases.
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