Answers
Answer:
D.
Explanation:
For two organisms to breed successfully and produce viable offspring that are fertile, both must belong to the same species with the same number of chromosomes.
Postzygotic barrier often occur when two organisms of different species and chromosomes numbers mate. If successful, the hybrid they produce remain sterile. This is what happens when goat with chromosome number of 60, mates with sheep with chromosome number of 54.
Postzygotic barrier is responsible for the sterility of the hybrid they produce, as a result of difference in chromosome number between sheep and goat.
Related Questions
What are major segments in Flagella structure?
Answers
Answer:
The bacterial flagellum is structurally divided into three parts: the basal body, the hook, and the filament 1,5.
Explanation:
What is the correct series of steps for the movement of energy in an ecosystem
O A. sun autotroph consumers
B. autotroph - heterotroph Sun
OC. heterotroph - autotroph - Sun
D. Sun consumer autotroph
Answers
Answer:
b
Explanation:
Just trust me
A geologist and anthropologist work together to study ancient footprints left in a rock unit. The geologists notes the presence of mudcracks in the rock layer. What can she infer about the environment in which the footprints were most likely made?
A) they formed in a vigorous river environment.
B) They formed in a shallow water environment.
C) they formed in a desert environment.
D) They formed in a deep ocean environment.
Answers
B, becauuse if the water dried up and left the mud to dry, mud will crack. but water would have to evaporate
The geologists notes the presence of mud cracks in the rock layer. the environment in which the footprints were most likely made They formed in a shallow water environment. hence option B is correct.
What is rock cycle ?Rocks are defined as the naturally formed and non-living earth which are composed by collection of mineral grains held together in a firm, it can be tiny or big.
The Rock cycle is the process where a continuous process occur through which old rocks are transformed into new rock due to cool down of molten magma, when it solidifies become igneous rock.
when the break down of the igneous rocks occur the small particles are transported and deposited which will form sedimentary rocks, When the igneous and sedimentary rocks heated up and under the pressure they change into metamorphic rocks.
The metamorphic rocks are generally subjected under great heat and pressure melt down to form molten magma which again can cool down and solidify into igneous rocks
For more details regarding rock layer, visit
https://brainly.com/question/11816146
#SPJ6
How do wetlands improve water quality in an ecosystem? A) Wetlands have filter feeders that clean the water. B) Wetlands have microorganisms that clean the water. C) Wetlands only have dirty, swampy water.
Answers
answer and show proof for brainliest
Answers
Answer:
A.
Explanation:
that's why malaria spreads
A healthy college student went to Colorado at the end of the school year for a vacation. While there, he drove to the top of Pike's Peak, a tall mountain. During his first hour on the peak, he walked about but had to sit down to rest three times. The last time was in the weather station. He glanced at the barometer hanging over his head. It read 450 mm Hg. (total Atm pressure). Explain two physiological responses that would increase the amount of oxygen delivered to her tissues.
Answers
Answer:
Due to sloppy geography and lower air pressure.
Explanation:
Walking on the sloppy and low pressure are the two physiological responses that increases the amount of oxygen given to her tissues. Walking on the steep and sloppy region requires high amount of energy so for that energy the body needs more and quick oxygen in order to breakdown of glucose for the release of energy that can be used for walking while on the other hand, the low atmospheric pressure have low amount of oxygen in the air so the person needs more oxygen for its breathing so the person breathe air fastly to supply optimum amount of oxygen to the body.
Imagine that a large amount of pesticide was spilled onto the ground, and the plants near the spill died. If the deer in the area did not have enough plants to eat, and wolves need the deer for food, what might happen to the deer and wolves?
Answers
The deer and wolf population would decrease because the deer have less plants to feed on while already being eaten by the wolves, and eventually the wolves will have less deer to feed on which will decrease their population
What you think about witt lowry?
Why did headphone hero get taken down?
Answers
Answer:
whos that ?!?!
Explanation:
QUESTION 20
Which of the following is required for the body to function at an optímum level of health?
a. Highly alkaline level
b. State of homeostasis
c. Highly acidic level
d. None of the answers are correct.
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
e to search
a
s
Answers
Answer:
Set priorities.
Manage your time well.
Manage your space well (stay organized).
Plan ahead.
Meditate and be mindful.
Set boundaries.
Take control and take responsibility
I’m not sure but none of the answer are correct , for me . Because to stay healthy, an individual needs not only energy but also a regular intake of over 40 nutrients. These nutrients are: protein, carbohydrates, fats, vitamins, minerals and water
Then I’m not sure
Byye and don’t forget I’m proud of you!!<33
In order to be called homeostasis the conditions involved must be found where in an organism?
Answers
body temp, blood glucose, pH levels, etc
im not 100% sure this is correct i hope it helps :)
Ocean ecosystems are most impacted by which two factors?
A. Number of fish and salinity
B. Pollution and boat traffic
C. Depth and distance from shore
D. Light and nutrient availability
Answers
Answer:
B. Pollution and boat traffic
Explanation:
The ocean ecosystem is most impacted by pollution and boat traffic. Thus, option C is correct.
What is an ocean ecosystem?Aquatic environment with concentrated saline conditions, including open oceans, deep sea oceans, and coastal marine ecosystems, each with assorted physiological and biological features.
Marine ecosystems are consist of biotic and abiotic factors. Biotic factors include living organisms, including plants, animals, and microorganisms. Abiotic factors include non living things, including amount of nutrients, availability of gases, sunlight, temperature, and pressure.
But pollution and boat traffic has direct and deadly effect on wildlife. after consumption of microplastic thousands of animals live sea turtles and seals are killed. Nitrogen emitted by boats in oceans disturbs the ecosystem. Therefore Option C is correct.
Learn more about ocean ecosystem, here:
https://brainly.com/question/7277991
#SPJ3
1.) When does a woman run out of eggs?
2.) What is the name of the lining of the uterus?
3.) What does estrogen do to the lining of the uterus?
4.) What hormone is released due to the rising level of estrogen in the bloodstream?
Answers
Answer:
1.) When does a woman run out of eggs?
A.) your ovaries cease to make estrogen, and you will go through the menopause. At the age of 45 to 50
2.) What is the name of the lining of the uterus?
A.) Endometrium
3.) What does estrogen do to the lining of the uterus?
A.) estrogen causes further proliferation of the stromal cells of the epithelial lining of the uterus.
4.) What hormone is released due to the rising level of estrogen in the bloodstream?
A.) When the level of estrogen is sufficiently high, it produces a sudden release of LH, usually around day thirteen of the cycle.
-TheUnknownScientist
Why are fracking liquid waste pools harmful to the environment?
When fracking liquid waste is left in pools on the surface, _________
can evaporate into the air and contribute to
pollution.
Answers
Answer:
The correct answer is - volatile organic compounds.
Explanation:
Fracking liquid waste is a type of waste that is producing during the oil drilling process by hydraulic fracturing. It produces some toxic and carcinogen substances that are needed to treat properly or these will mix with drinking water.
Other than these toxic substances the fracking liquid waste also produce volatile organic compound due to oil drilling which is very harmful to the environment as these organic compounds can evaporate and move to air and atmosphere to contribute to pollution.
Answer:
volatile organic compounds.
Explanation:
plato yw.
Recent studies on the impacts of climate change have found that many early spring butterflies are emerging earlier now than they did 100 years ago. Many early spring flowers have also been found to be blooming earlier than they did 100 years ago. However, bird species that prey on the butterflies have not been found to hatch any earlier. Which of the following is most likely true based on this information?
A) Butterfly populations will decline as a result result of temporal mismatch with flowers.
B) Bird populations will decline temporal mismatch with butterflies.
C) All three species likely timet events based on temperature.
D) Only butterflies and birds lik spring life events based on temperature,
Answers
Answer:
B) Bird populations will decline temporal mismatch with butterflies.
Explanation:
Bird populations will decreases due to mismatch with butterflies due to climate change because the birds feed on these butterflies for their survival and when they are not present they will die and decrease in population. The population of butterflies did not decreases but increases due to availability of food in the form of nectar from the flowers. If these flowers also blooms later and mismatch with the butterflies so the population of butterflies also decreases.
The cell knows which amino acids are to be attached to the ribosome during translation by reading the ______________ found on the mRNA
Answers
Answer:
The correct answer is - codons.
Explanation:
Each mRNA is made up of the codons that are complementary to the DNA sequence during transcription and once it binds with the ribosome, mRNA strand codes are read by tRNA in triplet code that decides which amino acid would be bind to the ribosome during translation to synthesize the polypeptide chain. For instance, if mRNA has CCG codon then tRNA should have GGC anticodon should have bound.
This space station has plants growing inside it, and astronauts who eat the fruits and vegetables from those plants Because it is in space, the station is sealed so no material can get in or out. The space station is in Earth's shadow, so no light is getting into it. The sensors in the space station show that carb dioxide in the air is increasing. What is happening to the energy storage molecules in the plants and humans in the space station? Explain your a as completely as possible.
Answers
Answer:
e
Explanation:
e
Answer:
a
Explanation:
a
please help question and choices are in image below
Answers
Answer:
A)1
Explanation:
because it is DNA Adenine pairs with Thymine
A person riding a bicycle wants to move the bicycle forward. She moves her legs up and down on the bicycle's pedals. Then the rider wants to stop the bicycle. She stops pedaling and the bicycle slows. She takes one of her feet off a pedal and puts her foot on the ground to stop the bicycle and stay upright.
Which of these best identifies a pathway of systems in the rider's body, as described in this scenario?
*Hint- the answers are combining the muscular system and skeletal system into the "musculoskeletal system".
A. nervous system → musculoskeletal system – circulatory system - nervous system
B. nervous system - musculoskeletal system — nervous system musculoskeletal system
C. musculoskeletal system - nervous system - circulatory system – musculoskeletal system
D. musculoskeletal system – circulatory system – musculoskeletal system - nervous system C
Answers
Answer:
c
Explanation:
sana makatulong HAHAHAHA
Answer:
The answer is B
Explanation:
Question 6 You are selecting for taller corn plants. Your starting population of corn has a mean height of 4 feet. You select for 6 foot stalks. The heritability of corn height in your population has already been determined to be 0.80. How tall will your next generation of corn grow to be
Answers
Answer:
The value of X₁, which is how tall the new generation of corn will grow equals 5.6 feet.
Explanation:
Before answering the question, we need to know a few concepts.
Artificial selection is the selecting practice of a specific group of organisms in a population -that carry the traits of interest- to be the parents of the following generations.
Parental individuals carrying phenotypic values of interest are selected from the whole population. These parents interbreed, and a new generation is produced.
The selection differential, SD, is the difference between the mean value of the trait in the population (X₀) and the mean value of the parents, (Xₙ). So,
SD = X₀ - Xₙ
Heritability in the strict sense, h², is the genetic component measure to which additive genetic variance contributes. The heritability might be used to determine how the population will respond to the selection done, R.
h² = R/SD
The response to selection (R) refers to the metric value gained from the cross between the selected parents. R can be calculated by multiplying the heritability h², with the selection differential, SD.
R = h²SD
R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),
R = X₀ - X₁
-------------------------------------------------------------------------------------------------------------
Now that we know these concepts and how to calculate them, we can solve the proposed problem.
Available data:
You are selecting taller corn plants.The population of corn has a mean height of 4 feet → X₀Parental selected plants of 6 feet → Xₙ Heritability of corn height is 0.8 → h²According to what we sow previously, we need to find out the value of X₁, which reflects how tall the new generation of corn will grow.
We know that R = X₁ - X₀, so we need to clear this formula to calculate X₁X₁ = R + X₀
We already know that X₀ = 4 feet,
Now we need to calculate R.
R = h²SDWe know that h² = 0.8,
Now we need to calculate SD
SD = X₀ - XₙXₙ = 6 → Parentals media height
X₀ = 4 → Population media Height
SD = X₀ - Xₙ
SD = 4 - 6
SD = -2 feet.
Knowing this, we can calculate R
R = h²SD
- h² = 0.8
- SD = 2
R = 0.8 x 2
R = 1.6
Finally, once we know the R-value we can calculate the X₁ value
X₁ = R + X₀
X₁ = 4 + 1.6
X₁ = 5.6
Answer: 4 feet got it on edge
I NEED HELP PLEASE!!!!!!!!!!!!!!!
the tympanic membrane is:
a lining of the Eustachian tube
in the inner ear
the ear drum
the cochlea
you can choose more than one
Answers
Answer: the ear drum
cochlea
Explanation:
bc They send the sound waves to the inner ear and into the fluid-filled hearing organ (cochlea).
Answer: The answer is The Ear Drum
Which two populations are likely to increase as a result?
A. yellow perch
B. Snail
C. Otter
D. Terrapin
Answers
Answer:
A. yellow perch
B. snail
Explanation:
This is because in the given diagram it has shown that snails and yellow perch are eaten by blue crabs.
If the blue crabs population decrease then they will feed on less snails and yellow perch which will result to its increase in population.
Unlike b cells, t cells do not display antigen receptors on their surface membranes
Answers
Explanation:
the wind blow his head down the street changeinto voice
7. Which is most likely an immediate negative effect of consuming alcohol on the body?
a. Increased risk of lung cancer
b. A decrease in immune function
C. A decrease in lung capacity
d. Impaired thinking and judgment
Answers
Answer:
d. impaired thinking and judgement
Explanation:
alcohol is a depressant, and heavily affects your ability to coherently think and properly judge.
Answer:
D
Explanation:
because u don't seem to be yourself.
Although Domain Bacteria is very diverse, bacteria do share some basic characteristics. Which of the following are some of those shared characteristics?
Question 4 options:
Bacteria are surrounded by a a strong cell wall made of a molecule called peptidoglycan.
Bacteria are eukaryotes.
Bacteria are prokaryotes.
Their DNA is one single, circular chromosome
Answers
Answer:
Bacteria are eukaryotes
They have a single DNA,circular chromosome
Explanation:
It's their basic characteristics that they share .
To convert the radiant energy of the sun into the chemical energy of glucose through
the process of photosynthesis is a function of
Answers
Answer:
Photosynthesis is a type of chemical reaction
it takes place when in a plant when using radiant energy
from sunlight.
Explanation:
Hope this helps
Answer:
In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. ... In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process. Carbon dioxide and water are products of this reaction.
Explanation:
PLEASE HELP ILL MARK AS BRAINLIEST AND GIVE 10 POINTS!!! when force is constant higher acceleration correlates to _____ mass?
a. more
b. equal
c. less
Answers
I think B? sorry if I'm wrong.
Closely related species contain all of the following except
A.
similar sized populations
B.
more similar DNA sequences
C.
more similar structural features
D.
share a more recent common ancestor
Answers
Answer:
c) more similar structual features
Explanation:
Ocean acidification is putting which animals most directly at risk?
A. sea birds
B. bottom-feeding fish
C. shelled animals
D.marine animals
Answers
Answer:
I believe it is D. Please correct me if i am wrong.
Explanation:
Hope my answer helps. Have a great day.
compare and contrast gene, DNA, and chromosome
Answers
What does it mean to say something “radiates”?
Explain your answer.
Answers
2. Emits
Hope this helps!
Answer:
It means something shining
Explanation:
Sparkling
Refractive