Answer:
Rough-skinned newts and common garter snakes are in an "evolutionary arms race." In this phenomenon, two species continually evolve adaptations against one another to increase their own chance of survival. Rough-skinned newts produce tetrodotoxin, a type of poison, as a defense mechanism. Most common garter snakes have some resistance to the toxin. In areas where common garter snakes and rough-skinned newts coexist, rough-skinned newts express very high levels of tetrodotoxin, and common garter snakes have evolved a very high degree of resistance to tetrodotoxin.
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Answer:
a
Explanation:
PS: PLEASE DO NOT PUT A LINK I AM NOT GOING TO OPEN THE LINK IN THE ANSER SECTION! THERE ARE 4 QUESTIONS.
1. what will be the distribution pattern of a population of snakes that have no social interactions and whose prey and shelter are abundant?
a. need more information
b. randomly dispersed
c. evenly dispersed
d. clumped
2. if there are 60 cardinals in a 4 square km area, what is the population density?
a. 60 cardinals
b. 15 cardinals per square kilometer
c. 60 cardinals per square kilometer
d. 240 cardinals
3. What is the term used to describe a factor that is directly related to population size?
a. distribution pattern
b. population index
c. age distribution
d. population density
4. Which of the following describes the distribution pattern of a population of black bears that have no social interactions and whose prey and shelter are abundant?
a. randomly dispersed
b. clumped
c. need more information
d. evenly dispersed
A removal of a dam in a river has restored river flow and improve the water quality of the river which of these would most directly increase due to enhance water quality in a river ecosystem?
Answer:
The dam removal often displaces warm-water species that prefer a lake-like environment, while promoting the recovery of fish populations that prefer colder-water rivers, such as salmon, trout, shad, river herring, stripped bass, sturgeon, and alewife.
Explanation:
I hope this helps
This tall, branching saguaro cactus provides nesting sites, food, and water
to other animals of the Sonoran Desert.
Which term best characterizes the role of the saguaro cactus in its desert
ecosystem?
The term biotic factor best characterizes the role of the saguaro cactus in its desert ecosystem.
What is an Ecosystem?An ecosystem may be defined as a place or an area where members of different species live together and interact with one another for the purpose of food, space, and shelter.
Saguaro cactus provides nesting sites (space), food, and water to other animals of the Sonoran Desert and allows them to survive and reproduce in a much better way. This refers to the biotic factor of an ecosystem.
Therefore, the term biotic factor best characterizes the role of the saguaro cactus in its desert ecosystem.
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The complete question is as follows:
This tall, branching saguaro cactus provides nesting sites, food, and water to other animals of the Sonoran Desert.
Which term best characterizes the role of the saguaro cactus in its desert ecosystem?
biotic factorpredatorconsumerdecomposerAnswer: Biotic
Explanation:
what does mitosis diagram look like
Answer:
here is a picture. hope this helps
Explanation:
Answer:
https://byjus.com/biology/mitosis/
Explanation:
I used the first diagram in science class and it was very helpful
When defining concentration during diffusion, what exactly are we describing?
Answer:
The amount of a substance in relation to the total volume is the concentration. During diffusion, molecules are said to flow down their concentration gradient, flowing from an area of high concentration to an area of low concentration.
What is the phenotype of a person whith the genotype I^Ai?
Answer:
Type A
Explanation:
Mode of inheritance for blood is tricky, but type A and B are codominant, while type A and type B are dominant over O. So in this situtation
I^Ai is A because type a is dominant over o
What is a likely reason for the change from mitosis to meiosis during reproduction
Answer:
meiosis allows for the crossing over of genes in reproduction which created genetically diverse offspring
Explanation:
what is the animal with unique characteristics? to be choosen from every other ones?
pls!! help me at least give me your ideas, what animal you most like and the reason you like it!!
the animal i like the most is the bald eagle and because it represents the U.S.A
Basalt is a gray or black igneous rock. Pilar uses an absolute dating method to study a sample of basalt. Which phrase indicates the age of the rock in years?Half-life of the rock
A. Half-life of the rock
B. Absolute age of the rock
C. Radioactive date of the rock
D. Age of the index fossil in the rock
Answer:
C
Explanation: That s C
He walks the way
To the f bus?
Answer:
2
Explanation:
in wetter climates plants usually have more stomata and grow faster. Suggest why
Answer:
A wetter climate slows the rate of transpiration allowing for there to be more stomata present on each leaf. Plants lose a lot of water when they open their stomata to get carbon dioxide for photosynthesis, especially in hot, dry deserts. Cacti lose less water by only opening their stomata at night.
Explanation:
Tim scraped his knee during a fall and it needs to be repaired. The closest skin cells begin sending out growth factors through paracrine signaling to tell all nearby skin cells to start replicating to repair the damaged area.
What are the next steps once the message is sent?
A) The growth factors are packaged into a vesicle and secreted from a cell that acts upon all nearby cells. The cells start dividing.
B) The growth factors are packaged into a vesicle and secreted from a cell that acts upon target cells near and far. The cells start mitosis.
C) The growth factors are packaged into a vesicle and secreted from a cell that acts upon only a target nearby cell. The cell starts swelling up.
D) The growth factors are packaged into a vesicle and embedded into the plasma membrane where it is detected by other cells. The cells produce more proteins.
Answer:
It is B all the other answers are for other types of injuries, knee scrapes don’t swell, it might divide, and it would produce more protein
Explanation:
Tim scraped his knee during a fall, and it needs to be repaired, so the growth factors are packaged into a vesicle and secreted from a cell that acts upon target cells all nearby cells. The cells start dividing, which is present in Option A.
What happens during cell repair?When the cell breaks, then the nearby cells release the paracrine signaling that goes to the cells and stimulates the cells to make the mitosis process and divide, which includes DNA replication, protein synthesis, and RNA synthesis, and then from the original cells, the daughter cells are formed and fill the gap that is formed in the injury and the far cells don't get the signal as the paracrine factors acts nearby.
Hence, Tim scraped his knee during a fall, and it needs to be repaired, so the growth factors are packaged into a vesicle and secreted from a cell that acts upon all nearby cells. The cells start dividing, which is present in Option A.
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YELP
Four students observed a wilted plant and were asked to identify the
internal stimulus that caused the wilting, Their responses are shown
below
Student
Response
1 Not enough moisture in the
air
2
Lack of water inside plant
cells
3
There is not enough sunlight
4
Too much moisture in the air
Which student correctly identified the internal cause of the wilted
plant?
Answer:
Student 2
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If you need any more help, I'm here until 2:30, with insight to the hardest questions!
May I please have brainliest?
Answer:
Student 2
Explanation:
Describe the similar processes for how all organisms get oxygen from the environment to all of their cells.
A scientist had two substances. One was a yellow liquid. The other was a colorless liquid. The scientist added a few drops of the yellow liquid to the colorless liquid. A red solid formed.
Answer:
The question needs to be completed
Explanation:
A model used by evolutionary biologists to represent evolutionary history among species is called a
o cladogram.
O parallelogram.
O histogram.
O phylogram.
Answer:
cladogram
Explanation:
name and match the description of the phases of meiosis 1
Which of the folllowing usually results when members of the same species require the same food and space?
Answer: Food shortages occur and living spaces become overcrowded or no longer available to the species.
Explanation:
Populations can have variety, despite being made up of
the same species. If a population has different expressed
traits, this can be due to different inherited alleles. The
frogs below are the same species, but they have different
shades of green based on their inherited alleles. In a
particular environment, lighter green frogs are easier to see
by predators. Explain how natural selection could lead to a
change in allele frequency.
Answer:
The lighter frogs will be eaten and will not be able to reproduce offspring with the light green trait. Darker green frogs will be able to reproduce more dark green frogs. Eventually most/all frogs will be a darker green because they carry a trait that improves chances of survival.
Which statement is true regarding meiosis in cells?
O In anaphase I, sister chromatids are pulled apart at the centromere.
O In prophase II, homologous chromosomes are paired up in a tetrad.
O The daughter cells do not undergo cytokinesis at the end of meiosis
The products of telophase I are two haploid daughter cells..
answer : the last one is true, yeah !!
d :: the products of telophase 1 are two haploid daughter cells ..
Chromosomes finish migrating to opposing ends of the cell in telophase I. Cytokinesis then creates two daughter cells. Therefore,option (D) is correct.
What happens is telophase I?The parent cell has two poles at Telophase I of the meiotic cycle, each with a full complement of haploid chromosomes (which still have their sister chromatids). Now, a cleavage furrow forms, separating the cytoplasm of the cell in two (a proccess ultimately called cytokinesis).
The homologous chromosomes divide into distinct nuclei during telophase I. The cell restores its nuclear membrane, deconstructs the microtubules and spindle fibers, and then initiates cytokinesis. After then, the cell enters a phase of rest known as interkinesis.
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3. Artana collects Information on 24 organisms and groups them based on the Linnaean system. Her friend argues that
she should not just put the common name of the organism but should also list the organisms' genus and species names.
Ariane argues that she did enough work and doesn't need to add more research. Which evidence could convince Arana
to add more information?
A. The common name does not sound scientific
3. The genus and species are Latin and easier to read.
C. The common name can change depending on region.
D. The genus and species are a broad level of classification
Answer: D. The genus and species are a broad level of classification Hope it helped =D
4. Which of the following best describes how LAMARCK would explain giraffes with long necks? A. Long-necked giraffes eat more grass that short-necked giraffes, so their necks grow longer. B. Natural variation in the population produces some longer and some shorter-necked giraffes, and necked giraffes can reach food more easily C. Some giraffes have acquired longer necks by stretching to reach food and passed the trait to the D. Giraffes just started out with long necks and haven't changed.
Answer:
C. Some giraffes have acquired longer necks by stretching to reach food and passed that trait on.
Explanation:
25% of the offspring are ________ purple and 25% of the offspring are _pp___ white. 50% of the offspring are _____PP__ purple.
Answer:Pp
Explanation: the only possible answer is Pp when looking at the other phenotypes presented.
HELP
Which phrase best describes a point source of water pollution?
Pipe releasing wastewater from a paper plant describes a point source of water pollution.
What is Water Pollution?
Water pollution is defined as the release of toxic substances into surface and subsurface of water bodies such as oceans, seas, rivers, lakes etc. where these toxic substances interferes in the daily lifecycle of the natural functioning of ecosystem.
Water bodies can be polluted through different methods including pathogenic microorganisms, fertilizers releases and plants nutrients or release of the radioactive substances.
Pollutants enter the water environment from two main types of sources:
- Point Source
- Non Point Source
What is Point Source of water pollution?A point source as the name suggest is the single source of pollution which is specific and identifiable.
It is easy to identify and thus can be easily tracked and suitable actions can be taken to either reduce or prevent the pollution from point sources.
Example- Pollution cause through pipe discharge
What is Non Point Source of Pollution?A non point source of pollution is referred to that kind of pollution where there is no specific source and pollution is causing either from one specific source or through different sources.
It is also called as Diffuse Pollution and it impacts larger area.
It is often associated with particular land uses as opposed to point sources.
Example- Urban land use, Agricultural land use
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Why is it important to maintain Homeostasis
A species of fly can either have the dominant trait of red eyes, or the recessive trait of brown eyes. If one heterozygous fly mates with a brown eyed fly, what percentage of the offspring would you expect to have
Answer:
The correct answer would be -
50% heterozygous red flies and 50% recessive brown eyes flies in offspring
Explanation:
This is given that a species of fly has two traits for the eye red eye which is the dominant trait and can be represented by R and the brown eyes trait which is recessive and represented by r.
Given: heterozygous fly which means have both traits gene but as Red is dominant it will have red eyes mates with recessive brown eye fly.
Rr × rr
gametes: R, r and r, r
then,
R r
r Rr rr
r Rr rr
There is 50 % recessive brown eyes flies in offspring and 50% heterozygous red eys offspring.
What process breaks glucose down to be used as an energy source?
Answer:
Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP
Explanation:
2. Describe the structure of a silkworm
Answer:
The structure of the silkworm is that the liquid silk hardens into five filaments which stick together in silk thread the silk are wrapped around the silk worm and forms a cocoon inside the cocoon the silk worm develops into a pupa in 15 days one silk worm secretes 1000-5000 meters of silk thread
I hope this might be the answer and might help u out
wanna meet my new kitten guess the correct number between 10 and 40 1 and 30 and 20 and 50 it is a combination of 3 numbers and a bonus of brainly :) good luck!
Answer:
9 15 32
Explanation: