Answer:
Polar regions
Explanation:
Because plants don't survive in the extreme cold and ice that cover these regions year-round.
Due to their intense and harsh environmental circumstances, polar regions like the Arctic and Antarctica often have the lowest levels of biodiversity. So, the correct option is B.
What is Biodiversity?The term "biodiversity", which is short for "biological diversity", describes the range of living things and ecosystems that exist on Earth. It includes a wide range of species, genetic diversity within those species, a wide range of environments, and a range of ecological processes. Humans benefit greatly from biodiversity as it provides them with food, medicine and ecological services such as pollination and water and air purification.
Because of their intense and harsh environmental conditions, polar regions such as the Arctic and Antarctica often have the lowest levels of biodiversity. These regions have a relatively limited diversity of species because the cold and dry conditions make it difficult for many species to live. Furthermore, these areas often have low population density due to the severe environment and scarce resources.
So, the correct option is B.
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Help I’ll give brainliest
Answer:
At stage 3, it is most difficult to tell the embryo apart. This is because There are a lot of similarities at this stage and the distinguishing features have not developed yet.
Each embryo has some type of tail bone, whether it may or may not be used when actually born.
This can be used to support evoultion because the similarities clearly and visibily show a common ancestor between embryos. Because of their obvious similar traits, embryos must share ancestral DNA that they evolved from.
Explanation:
Which phylum is characterized by animals that have a segmented body?.
The population in a 50 square mile area is 200 people. What is the population density?
This is a simple calculation.
Typically you convert square miles into square kilometers. But you can apply this formula to both imperial and metric systems.
Formula:
[tex]Population Density = Population/Land Area[/tex]
Here is what your equation looks like
[tex]Population density = 200/50^2[/tex]
Calculate that and you get 0.08 people per square mile.
ASAP
15. If out of 100 offspring, 74 are purple flowered and 26 are white, what were the likely genotypes and
phenotypes of the parents if this is a simple monohybrid cross?
Answer:
so it would be a 3 : 1 ratio.
Explanation:
The probable genotypes of the parents is Pp (Purple). When we will cross the two heterozygous purple flowers we will get the purple and white coloured flowers
The ratio would be 3:1. The parents' likely genotypes are Pp (Purple). Purple and white colored flowers will result by crossing two heterozygous purple blooms.
What are Genotypes and Phenotypes?The type of variant existing at a specific locus (i.e., region) in the genome is scored by what is known as a genotype. Symbols can be used to symbolise it. For illustration, BB, Bb, and bb might be employed to denote a certain gene variant.
The term "phenotype" refers to an organism's observable qualities, which are a multifactorial result of hereditary attributes and environmental factors. The physical, biochemical, physiological, and behavioral characteristics of an organism make up its phenotype.
Pp is the likely genotype of the parents (Purple). In the example presented above, combining two heterozygous purple blossoms will produce flowers that are both purple and white.
Thus, the ratio would be 3:1. The parents' likely genotypes are Pp (Purple). Purple and white colored flowers will result by crossing two heterozygous purple blooms.
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Which valve prevents backflow into the right ventricle?.
What term refers to the process by which cancerous cells spread throughout the body? a) malignant
b) metastasis
c) benign
d) mitosis
Answer:
I believe the correct answer is B) metastasis
Which statement best describes the effect of color on energy absorption and reflection?
Light colors reflect more and absorb less than dark colors.
Light colors reflect less and absorb more than dark colors.
Light colors absorb and reflect more than dark colors.
Light colors absorb and reflect less than dark colors.
The answer is A) Light colors reflect more and absorb less than dark colors.
Because remember, white is the absence of color (reflect) and black is every color (absorbs) :D
Light colors reflect more and absorb less than dark colors. The correct option is A.
What is reflection?When two different media come together at an interface, a wavefront might change direction so that it returns to the first medium, which is known as reflection. The reflection of light, sound, and water waves are typical examples.
It is referred to as light reflection when a light ray hits a polished, smooth surface and bounces back. The incident light rays hit the surface and are reflected off of it.
The darker colours absorb more of the various light energy wavelengths, whereas white or light-colored objects reflect the majority of these wavelengths, which is why heat absorption depends on hue. As a result, black absorbs all light's wavelengths while reflecting none.
Thus, the correct option is A.
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2. why would advances in medicine lead to population growth? a. treatment of deadly diseases allows people to live longer b. people are unable to have babies without medical help c. babies do not grow if they don't take their medicines d. drugs allow mothers to have multiple births, like octuplets.
The treatment of deadly diseases allows people to live longer which leads to increase in population.
Why would advances in medicine lead to population growth?Due to advances in medicine, the death rates become slower which leads to increase in population. Medicines helps in the treatment of many diseases which causes death.
So we can conclude that the treatment of deadly diseases allows people to live longer which leads to increase in population.
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Hysterectomy Is a surgical removal ofthe Uterus.It may or may not be accompanied by Salpingo-oophorectomy, removal of the uterine tubes and ovaries. Why would it be an advantage to leave the ovaries intact
It is an advantage to leave the ovaries intact because the woman will still be able to produce eggs and children through In vitro fertilization.
What is an Ovary?This is a part of the female reproductive system which serves as the site for egg production.
When the ovaries are intact, the eggs can be taken and fertilized with the sperm in a lab dish and implanted into the uterus of another female for development of the zygote.
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Which of the following is NOT an advantage of reproduction?
A. no mate required
B. fast way to repopulate
C. creates genetic variation
Answer:
C.
Explanation:
Shows the logical approach to the benefits of reproduction.
Hope it helps (:
Help me in exercise 7 and 8
Answer:
I took a picture of my answers and put it in, and for exercise 8 do you have words to fill in the blanks? or is it just your own words.
Explanation:
. The amount of food, space, and predators are examples of ____________________ that limit the number of individuals that the environment can support.
The amount of food, space, and predators are examples of density-independent factors that limit the number of individuals that the environment can support.
What are density-independent factors?Density-independent factors are those factors that do not depend on the size of a population to affect the population.
Density-independent factors include the following:
PredatorsAvailability of nutrientsSpaceDisease outbreakTherefore, the amount of food, space, and predators are examples of density-independent factors that limit the number of individuals that the environment can support.
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PLEASE HELP DUE IN 10 MIN
Answer:
what are the options
Explanation:
Within the ANS, the effects of the ______ division are often general and widespread, while in the _______ division the effects are more specific and local.
Answer:
I guess-
Sympathetic
Parasympathetic
Explanation:
The autonomic nervous system(ANS) has two main divisions: Sympathetic. Parasympathetic.
Which of the following explains why it is important to store feed correctly?
Answer:
the important explaination we must store food in the cool place
Richard Pyle turned to Bill Stone when he wanted to learn more about rebreathers and other diving technology.
OA. True
OB. False
Answer:
True
Explanation:
The fin of a tuna and the flipper of a dolphin are:.
Which of the following names an effect of increasing the livestock population through higher fertility rates?
increased cost for food products
increased cost for food products
improved behavior in animals
improved behavior in animals
increased methane emissions from cattle
increased methane emissions from cattle
improved animal-husbandry practices
improved animal-husbandry practices
pls help will give brainliest and 5 starts
Answer:
See the answer below
Explanation:
5
2
1
3
4
Research on the biology of aggression has clearly demonstrated that:.
Answer:
Research on the biology of aggression has clearly demonstrated that animals can be bred for aggressiveness. When a mild-mannered woman had an electrode implanted in her amygdala, she developed more aggressive tendencies. Studies have revealed diminished activity in the ________ of violent criminals.
Explanation:
animals can be bred for aggressiveness
Blood has traveled from the heart to the toes. Which describes the next step
of the circulation process?
• A. The blood releases carbon dioxide on the way back to the heart.
•
B. The blood goes through the liver to be cleaned.
O C. The blood travels back to the heart in a vein.
• D. The blood travels to the lungs to get oxygen.
The color yellow (Y) is a dominant trait. The color green (y) is a recessive trait. If a pure yellow pea (YY) mates with a pure green pea (yy), what will the offspring look like?
A. All yellow
B. All green
C. 1/2 yellow 1/2 Green
D. 3/4 blue 1/4 yellow
Answer:
A) All yellow
Explanation
If the hom ozygous dominant ma tes with the hom oz ygous recessive, 100% of offspring will be he tero zygous and express the dominant trait. Looking at the help image below, all offspring will be he teroz ygous and e xpress the yellow color trait.
I hope this helps!
16. Why should the recessive phenotype be used first to determine the q squared value instead of the dominant phenotype to determine the p squared value?
The recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.
What is a recessive phenotype?A recessive phenotype is a phenotype which expresses the recessive trait of a gene.
The recessive phenotype is always h0m0zygous for that triat to be expressed.
In the Hardy-Weinberg equilibrium equation, the allele and phenotype frequencies are given as follows:
p^2 + 2pq + q^2 = 1where;
p^2 is the h0m0zygous dominant phenotype frequency2pq is the heterozygous phenotype frequencyq^2 is the h0m0zygous recessive phenotype frequencyTherefore, the recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.
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Which source of energy causes most of the water evaporation on Earth’s surface?
Answer:
heat energy from the sun
A patch of flowers was exposed to a harmful pesticide. Identify and explain which organelle(s) would
be heavily involved in providing the plants' cells with protection.
Answer:
plasma membrane?
Explanation:
The function of plasma membrane is seperating the contains from outer environment?
What happens to energy from the Sun when it reaches Earth
Answer:
The energy from the sun that reaches Earth’s surface is mostly “shortwave” radiation – mostly visible light. This energy passes freely through the atmosphere and is absorbed by Earth’s surface. The surface warms from the energy input, and some of its heat projects back to the atmosphere as infrared radiation.
Explanation:
Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth, some is reflected back to space by clouds, some is absorbed by the atmosphere, and some is absorbed at the Earth’s surface. … Shortwave radiation reflected back to space by clouds.
Five hundred cockroaches of one species were sprayed with a new insecticide. Twenty-four hours later nearly all the cockroaches were dead. A few, however, survived. This outcome illustrates which one of darwin’s key ideas about natural selection and variation?.
Answer:
This shows that over time, some insects can become "pesticide-resistant" meaning that pesticides don't affect them anymore. And this only happens every few generations. Therefore, each generation is being naturally selected and accumulating variations that make them resist the chemicals. This shows that each cockroach's genes are changing to give them variation from the rest of the population.
I hope this helps!
Which statement best describes how organisms use DNA and amino acids to synthesize protein?
1 Dna is transcribed into mRNA, which is translated by the ribosome to produce an amino acid chain.
2 DNA is translated into mRNA, which is transcribed by the ribosome to produce an amino acid chain
3 Amino acids are transcribed into mRNA, which is translated into the nucleus to produce a molecule of DNA.
4 Amino acids are translated into mRNA, which is transcribed in the nucleus to produce a molecule of DNA.
Answer:
1 Dna is transcribed into mRNA, which is translated by the ribosome to produce an amino acid chain.
Explanation:
The steps of the process are always from DNA to mRNA to amino acids. This is because DNA can't travel out of the nucleus. So, DNA must be converted to mRNA to travel out of the nucleus. Only mRNA can leave the nucleus. The m in mRNA stands for messenger, so think of mRNA as the messenger from DNA to amino acids. Then the mRNA must be converted to amino acids to produce a protein.
So, options 3 and 4 are eliminated.
The process of DNA to mRNA is called Transcription. The act of transcription is called transcribing.
The process of mRNA to amino acid is called translation. The act of translation is translating.
The only option that fits this category is option 1.
Which process helps replace damaged skin cells?
meiosis
mitosis
fertilization
fusion
Answer:
1) growth and development
2) to heal wounds,cuts,etc.and replace damage cells
3) to maintain the ideal surface area to volume ratio
❕♥️HOPE IT HELP'S♥️❕Mitosis is a process of cell division that results in the formation of two new daughter cells. It plays a crucial role in living organisms. It helps to maintain the genetic stability and helps in increasing number of cells in body thus leading to growth.
Replacement of damaged cells is carried out by mitosis. Mitosis helps in the production of identical copies of the cells this helps in repairing the damages tissue or worn out cells. It creates new skin cells to replace read skin cells._____ scans create pictures of the living, active brain.
Answer:
A brain positron emission tomography (PET) scan. This is a type of scan that allows doctors to see how your brain is functioning
Explanation: