Answer:
i just took this test its
An old star collapses on itself
Explanation:
Genes A, B , C and D are present on the same chromosome. The recombination frequency between the genes is as follows: A and B: 24%, A and D: 16%, B and C: 18%, C and D: 10%. What is the correct order of genes along the chromosome
Answer:
BDCA
Explanation:
Recombination, also know as crossing-over, refers to the exchange of genetic material (DNA) between non-sister chromatids of homologous chromosomes during cell division (meiosis). The recombination frequency refers to the frequency of crossover between two genes/loci during meiosis. The recombination frequency is not a direct result of the physical distance between genes/loci on the same chromosome, but this value provides a good approximation of such distance. The recombination frequency is measured in centimorgans (cM), where 1 cM is equal to a 1% chance of recombination. The higher the recombination frequency between two genes/loci, the greater the chance that a cross-over will occur between them, and the greater the distance between them. Moreover, the lower the recombination frequency between two genes/loci, the lower the probability that they will separate by recombination, and the more closely they are linked.
Linkage map:
B------D-----C----A
D-----------A
16 cM
D----C
10 cM
B-------------C
18 cM
B--------------------A
24 cM
How many genes are needed to control a single-gene trait? A. two B. millions C. one
Answer: one. A single gene trait is controlled by one gene, its in the name :)
A. Bone
B. Organ systems
C. Organs
D. Specialized cells
what are the nitrates is used to make?
Answer:
fertilizers
Explanation:
Plants use nitrates as a supply of nitrogen, which is needed to make proteins for healthy growth. Plants absorb nitrates in water through their roots. Nitrates are present in high levels in plant fertilisers. Without nitrates, the amount of chlorophyll in leaves reduces.
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
All the different populations living in the same habitat or ecosystem make up _____ A.biodiversity
B.ecosystem diversity
C.genetic diversity
D.species diversity
Answer:
D.species diversity
Explanation:
its D because biodiversity,includes to all the many plants, animals, fungi, and microorganisms. And includes the many variety of ecosystems what's found on Earth. Ecosystem diversity, describes all of the different type of habitats around the world.
Allie was in the park playing on the equipment. She noticed that on the highest slide, she slides down
A)
without friction.
B)
with the slowest speed.
with the greatest speed.
D)
at about the same speed as the shortest slide.
what does NADP+ want to carry outside of the thylakoids?
factors that affect rate of erosion
Answer:
farm management, rainfall, climate, soil type, soil cover, landscape, type of wave, crops, rock strength and position of coast.
Explanation:
Erosion can be defined as a geological process which typically involves the wearing out of earthen (soil) materials and the transportation of these materials by natural forces like water, wind, etc. Soil erosion is greatest when the soil is steep.
The steepness of a body such as river or stream refers to the downward slope or gradient of the body of water.
Generally, the steepness of a body affects the rate at which other materials would flow or move around. Thus, the steeper a river or stream, the greater would be its rate of erosion.
Other factors that affect the rate of erosion in an area include the following; farm management, rainfall, climate, soil type, soil cover, landscape, type of wave, crops, rock strength and position of coast.
As Carter was hammering a nail, he accidentally hit his thumb with the hammer. His response to this is due to a special sensory receptor called a ______.
Answer:
boom
Explanation:
booom
How is water used in the environmet
Answer:Water for the ecosystem is at the heart of a wide variety of programs and results across the province. Water is carried by healthy rivers to homes, farms, schools, and industries. They nourish whole habitats and provide critical shelter for native plants and animals along the way.
Explanation:
If glucose is metabolized under completely anaerobic conditions, pyruvate ( Please explain why each answer is wrong or right.)
a. immediately enters the Krebs cycle.
b. is converted by fermentation to lactate or CO2 and ethanol.
c. is converted back to fructose until the concentration of oxygen increases.
d. is converted to NADH.
Answer:
B.
Explanation:
A is wrong because pyruvate would enter the Krebs cycle under aerobic condition (when oxygen is present). Hence the name aerobic cellular respiration
C. I do not really too much about fructose or the concentration of oxygen, but I can assure that this answer choice is not correct.
D is wrong because NADH would be converted from NADP+. Either with oxidation or reduction, and this helps to keep this process going.
B is correct because fermentation is another word for anaerobic cellular respiration. The process takes place with the absence of oxygen. It either goes through Alcoholic or lactic acid fermentation.
I hope this helps!
Please answer please I need help thank you
Algae provides more energy to the Box Turtle population.
If you see the bottom of the chain, Algae, whether the turtles eat it or not, also provides energy/food/resource for other forms of energy the turtles can consume, it's the base of the chain.
The answer is not aquatic insects because they do not supply as energy to as many sources as algae.
Hope this helped!
Clark case summary for gizmo
Compare and contrast point mutations and chromosomal mutations. Which part of the organism's DNA is affected as a result of each?
Answer:
In point mutation,the gene is affected however in chromosomal mutations,there is change in the structure or number of the chromosomes
The primary distinction among point mutation and chromosomal mutation is, the point mutation is a small mutation in which basically a single base pair of the either DNA or RNA encoding changes, whereas chromosomal mutation is a large-scale mutation in which the chromosome structure changes.
What is mutation?A mutation is an alteration in an organism's DNA sequence. Mutations can take place as a consequence of mistakes in DNA replication during cell division, mutagen exposure, or viral infection.
Mutagens are environmental factors that results in mutations. Mutagens can be either radiation, chemicals, or infectious agents.
In living organisms, there are two kinds of genetic mutations namely point mutation and chromosomal mutation.
The nucleotide sequences are usually altered in both cases. As a result, all these types of mutations can result in fatal diseases.
The main difference between point mutation and chromosomal mutation is that point mutation is a small-scale mutation that changes a single base pair of the DNA or RNA encoding, whereas chromosomal mutation is a large-scale mutation that changes the chromosome structure.
Thus, this is the comparison between the types of mutation.
For more details regarding mutation, visit:
https://brainly.com/question/13923224
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What material was used to make shelters in the Stone Age?
Mammmoth bones
Stone
Animal hide
Answer:
Stone
Explanation:
These houses are more like our houses than any others in the Stone Age. They had foundations and they were built of wood and wattle and daub (a mixture of manure, clay, mud and hay stuck to sticks). They were sometimes made of stones. The roofs were made of straw.
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer:
The answer is D
Explanation:
HELP WILL GIVE BRAINLIEST
Answer:
What are you talking about?
Explanation:
What
Why do some people require bifocals (or even trifocals) as they age?
Answer:
Explanation:
People have to wear bifocals most commonly because of a condition called presbyopia. This condition occurs naturally. It causes difficulties in the eye’s focusing abilities. Bifocals work to help the eyes focus more clearly, which is why people have to get them.
Which best describes the white light in the visible light spectrum?
А
a mixture of every wavelength and color of visible light
B
a mixture of only seven colors and wavelengths of visible light
С
a mixture of only red, blue, and yellow wavelengths of visible light
D
a mixture of colors that cannot be broken up in the spectrum of visible light
Answer:
B
No explanation required
describe how carbon dioxide is produced by respiring muscle cells reaches the alveolar cavitiesin mammalian lungs
Answer:
Hope this helps:
The carbon (iv) oxide which has been produced by the respiring muscle tissue is diffused into the bloodstream in the form of bicarbonates, a process facilitated by an enzyme called carbonic anhydrase. The carbon (iv) oxide is then carried to the lungs.
Explanation:
What is some evidence that makes plate tectonics is such a firmly believed idea?
Answer:
There are many shreds of evidence that support the theory of plate tectonics and make it such a firmly believed idea. These pieces of evidence include fossils, glaciers, earthquakes and volcanic activity, the shape of continents, the magnetism of rocks on the seafloor, the mid-ocean ridge system, and others.
Fossils give an idea of the location of the plants and animals that once existed. Earthquakes and volcanic activity also help in determining the cause of the boundaries and rifts formed. The shape of the continents seems to be fit with one other that gives the idea that these were together and moved away from each other.
Key Term Matching
1. accessory organs
2. fundus
3. uvula
4. villi
5. large intestine
6. root
7. dentin
8. lamina propria
9. fauces
10. chyme
11. incisor
12. parietal cells
13. crown
14. stomach
15. cheeks
16. serosa
17. enamel
18. stratified squamous
19. gingivae
20. small intestine
21. pharynx
22. liver
23. molar
24. mucins
25. acinar cells
a. forms bulk of tooth
b. performs compaction
c. a cutting tooth villi
d. liquid food mixture in stomach
e. posterior opening of oral cavity
f. has three muscularis externa layers
g. portion of tooth above gum line
h. epithelium found in esophagus
i. are connected to GI tract by a duct
j. composed of loose connective tissue
k. dome-shaped stomach region
l. organ shared with respiratory system
m. substance harder than bone
n. exocrine part of pancreas
o. projection off of soft palate
p. in saliva to lubricate food
q. finger-like extensions of mucosa
r. portion of tooth below gum line
s. the gums
t. performs 90% of digestion and absorption
u. secretes bile
v. a grinding tooth
w. secrete HCI
x. outermost layer of GI tract wall
y. lateral walls of the oral cavity
what products are made from the process of photosynthesis
Answer: glucose and oxygen
Explanation:
The formula for photosynthesis is:
Carbon dioxide+water-->glucose+oxygen
Anything on the right of the arrow is the products so, it is glucose and oxygen.
Hope this helps :)
Answer:
glucose and oxygen
Explanation:
plants need carbon dioxide that human and animal release in order to manufacture food(photosinthesize)
in return,they give is oxygen and glucose from the food it produces
A gene pool consists of *
A) all the genes that mutate in a single generation
O B) all the heritable genes for traits in a population
C) all the gametes produced by a population
D) the mutated alleles for a particular trait
2.1 Define the concept study plan
Answer:
A study plan is a summary of the subject requirements of your course and indicates when planned subjects should be studied. It indicates the subjects you have completed; are currently enrolled in; plan to study in the future; and those for which you have been granted advanced standing (credit for previous studies).
Explanation:
please mark me as brainliest answer
Which of the following foods have fiber in them?
Your answer:
Peanuts
Granola
Bananas
All of the above.
Answer:
All of the above.
Explanation:
Bananas, peanuts, and granola are all great sources of fiber.
Hope this helps! :)
Which climate is best for supporting both plant and animal life? A.Tropical Rainforest B. Tundra C. Temperate Deciduous forest D. Desert E. Savanna F. Taiga
Deciduous forests, it holds both plant life and animals that thrives extremly well.
List some of the diseases mentioned that have plagued humans from Egyptian nobles to now.
Answer: Many of the diseases which cause problems in today's society afflicted Egyptian populations. These include tuberculosis, malaria and schistosomiasis.
Explanation:
What are the five human impacts on the environment? (I would prefer them in point form, but i understand if you cant do that
Answer:
1. pollution
2.climate change
3. misuse of natural resources
4. erosion
5.loss of biodiversity
Explanation:
Answer:
overpopulation, pollution, burning fossil fuels, and deforestation.
Explanation: