Answer:
The correct answer is - it is due to the case of sex-linked recessive disorder.
Explanation:
It is pointed out by the doctor that Sam has a condition due to recessive allele and it is given that boys have this condition more than girls which suggests that it is a sex-linked recessive disorder. This comes from their parents but it is given that the father has normal hair which means the father has no recessive allele, then it must come from the mother even mother has not this condition but she could be a carrier for this trait.
Joe and his sister do not have this condition as they get the normal dominant allele from mother and father.
The chances of being a carrier by his sisters are 50%. If Joe marries
IF Joe marries a non-carrier woman, he will have all normal children with no green hair. IF Joe marries a normal hair color carrier women then there would 25% chances of being diseased offspring and 50% chances of being a carrier, and if women is completely normal then all offspring will be normal.
carrier woman, his children will have a 25% chance of being green-haired. A 25% chance of being
IF Sam marries a normal woman, the children will have a 25% chance of being a carrier, a 25% chance of being green-haired, and a 50% chance of being normal.
During which eon did Pangaea come together?
Archean
Hadean
Phanerozoic
Proterozoic
Pangaea came together during the Phanerozoic eon.
• The current geologic eon in the geologic time scale is the Phanerozoic eon. It is the one during which abundant plant and animal life prevailed.
• It is of the span of 541 million years to the present, and it started with the Cambrian period when animals initially developed hard shells.
• The Phanerozoic time span began with the sudden emergence of fossilized evidence of a number of animal phyla, the development and emergence of complex plants, and the evolution of fish, the emergence of tetrapods and insects, and the development of present time fauna.
• During the Phanerozoic eon, the tectonic forces moved the continents and gathered them into a single landmass called Pangaea, which later got separated into the present continental landmasses.
Thus, the correct answer is Phanerozoic eon.
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Explain why it is essential that decomposers are present in an ecosystem.
Answer:
it is what breaks down dead plants and animals
Write down FOUR steps in growing bacteria cultures
Answer: Bacteria reproduce when one cell splits into two cells through a process called binary fission. Fission occurs rapidly in as little as 20 minutes. Under perfect conditions, a single bacterium could grow into over one billion bacteria in only 10 hours!
Hope this helps :3
Explanation:
https://learning-center.homesciencetools.com/article/bacteria-experiment-guide/
Answer:
What bacteria needs to grow and multiply:
Food (nutrients)
Water (moisture)
Proper temperature.
Time.
Air, no air, minimal air.
Proper acidity (pH)
Salt levels.
Can i have a brainliest pleaseee:)
How do the densities of the planets support the Nebular Theory?
Answer:
The solar nebula theory explains that planets are formed by solid bits of matter. What that matter is entirely dependent on the gas and substances available.
Explanation:
Identify two features that a theory must have, to qualify as a scientific theory.
3. Describe three characteristics of cell membranes.
What should I describe First??
Explanation is in a file
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PLEASE HELP i need it within like 10 mins
Answer:
2
Explanation:
Its 2 because it can be absorbed
Answer:
deep snow melting not 100% sure tho
Chemicals that stay in the environment
for a long time are known as
A. unstable
B. reactive
C. persistent
D. corrosive
Answer:
Persistent item c
The diagram shows a portion of the fossil record. Select ALL of the statements that are supported by the record. A) Life moved to land in layer 6. B) Layer 5. is older than layer 2. C) Fish were the first life forms. D) The oldest life existed in water. E) Shelled organisms existed before fish.
Answer:
D,E
Explanation:
Help me please??????????
Answer:
very similar DNA sequence
Explanation:
What's something you liked or found interesting about any one of the episodes of the aquarium? (Make sure to write at least 4 sentence).
Answer:
An interesting episode of the aquarium I had was seeing a dolphin show. The dolphin was super smart, and I have to admit it was smarter than me. I mean I was like 3 when I went there so, I guess that is normal? Anyways, the dolphin was doing cool tricks like twist jumping, and even I tried it but failed. The dolphin went to the worker when the worker called its name. I learned that day that you shouldn't underestimate dolphins because they are smart.
Explanation:
This is an example, so do not copy. You may get inspired.
1 sentence:introduction(aka what you liked or found interesting stuff about the aquarium)
2-4 sentence:the main area(talking about what happened)
1 sentence:conclusion
What is weathering and runoff?
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the earth,water, ice, acids, salts, plants and animals.
Runoff means the portion of precipitation on land that ultimately reaches streams often with dissolved or suspended material.
hope this helps ^ ^
enzymes for carbohydrates
a insulin
b protease
c lipase
d amylase
Answer:
maybe its B
but dont qoute me on that
Describe the advantage of broad-leaved trees losing their leaves as winter sets in and the advantage of needle-leaved trees keeping their leaves if they are in poor soil
Answer:
The advantage of shedding broad leaves in the winter is to conserve the energy that needs to expand in order to provide heat to each part of the plant including leaves as in winters it becomes very dry and cold. If they do not shed their leaves they have to spend more energy to spend energy on leaves.
Needles like leaves have a thick cuticle layer that prevents from losing water in dry conditions or conditions with a limited amount of water in the soil. These leaves also help in photosynthesis by capturing more sunlight as they have a larger surface area. These adaptions can live in poor soil, rain and snowy conditions.
state two changes which take place in the flower after pollination
After pollination and fertilization following changes occur in a flower: (i) The petals, stamens, style and stigma of the flower fall off. (ii) Sepals dry up and hold the ovary. (iii) The ovules confined in the ovary develop into seeds.
2. Which statement does not accurately describe natural selection?
A. Individual organisms change their genes to adapt to their environment.
B. The genetic composition of a population changes from one generation to the next.
C. More advantageous traits become more common in populations.
D. Beneficial and useful traits are inheritable.
Answer:
It is individual organisms change their genes to adapt to their environment.
correct answer is A
What greenhouse gasses come from burning coal
Answer:
C02
Explanation:
When coal is burnt or other fossil fuels, C02 is emitted.
Answer:
Coal combustion releases Carbon dioxide and nitrous oxide
free interesting facts about Jordan creek springfield missouri
no links please
Springfield's nickname is "Queen City of the Ozarks" as well as "The 417" after the area code for the city. It is also known as the "Birthplace of Route 66". It is home to three universities, Missouri State University, Drury University, and Evangel University.
Explanation:
Here it is.Mark me as brainliest please if u are satisfied with this.
Infer why base substitutions in the third position are least likely to cause a change in the amino acid for which it coded.
Answer:
Because of the codon oscillation.
Explanation:
The formation of codons is susceptible to the occurrence of oscillation, which is the term that corresponds to the fact that many codons have synonyms in the third position, that is, in the third letter. For example, the codon CUA, which represents leucine, will also represent leucine if it is presented in CUU, CUC and CUG forms, due to the oscillation in the third position. This allows the tRNA to recognize any of these codons and pair with the anticodon smoothly and without errors.
The evolution of arthropods has led to
Answer:
Arthropods make up almost 80% of all animals; they are jointed legged animals that belong to the Animalia kingdom that include centipedes, millipedes, insects, and spiders. The success of arthropods can mainly be attributed by the following characteristics;
Presence of Exoskeleton.
The presence of exoskeleton that hardens due to the presence of chitin offers a protective cover for arthropods with different environment against advance conditions and also it protects against dehydration.
Varied habitats.
Arthropods can be found in all types of habitats from the soil, water, and land. This feature is the key to their survival since they are widely distributed hence increasing chances of survival.
Bilateral Symmetry.
Arthropods exhibit bilateral symmetry whereby a different portion of their bodies are mirror images, this form is exhibited in higher animals such as humans and dogs, and it facilitates advanced body functioning.
Jointed Legs.
Arthropods exhibit segmented legs that are jointed to allow the development of hard exoskeleton for protection. The jointed legs are specialized for grasping, jumping and running.
Short generation time.
Arthropods exhibit short generation time, which allows for faster adaptation to the environment and survival.
Reproduction strategy.
Arthropods have exhibited a sexual form of reproduction that is more successful in the growth and survival of offspring.
Segmented body.
Arthropods have a segmented body that allows for specialization of body organs and tissues, and this has promoted their success by specializing body organs to different functions.
Which of the following is something almost everyone can do to reduce his or
her carbon footprint?
O A. Take warmer showers. .
B. Turn off the lights when leaving the room.
O C. Cook with the oven more often.
D. Use the fireplace when a house is cold.
SUBMIT
Which type of wetland includes a mixture of salt water and fresh water?
bogs
swamps
inland marshes
coastal wetlands
Answer:
Confirming
Explanation:
please heip i am giving away brainiliest for the best answer
Which substance produced by the immune system is involved in both active and passive immunity?
A. antibiotic
B. antibody
C.vaccine
d. mucus
no dam links
Answer: b
Explanation:
Answer:
B. Antibody
Explanation:
Trust me I've learned this is middle school
Two sound waves are moving through a medium at the same speed. If wave x has a greater frequency than wave y, then wave x
Correct Question:
Two sound waves (wave X and wave Y) are moving through a medium at the same speed. If wave X has a greater frequency than wave Y, then wave X
A. has a lower amplitude.
B. has a shorter wavelength.
C. has a longer wavelength.
D. has a greater amplitude.
Answer:
C. has a longer wavelength.
The basic equation of frequency and speed are
velocity = frequency x wavelength
When both waves' velocities are the same then
v1 = v2
f-1 x wavelenght-1 = f-2 x wavelenght-2
Now increasing frequency of wave X will increase the wavelength of wave Y for the equations to be equal.
PLEASE HELP. 10 POINTS!!!
Answer:
i believe the answer is c
HOW ARE ROCKS, ELEMENTS, & MINERALS RELATED?
Answer:
Rock is formed from a combination of 2 or more minerals and minerals are composed of one or more elements.
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WILL GIVE BRAINLIST!!! How are population increases affect water resources in Texas?
FIRST TO ANSWER 15 POINTS PLUS BRAINLIEST What is a benefit of Nuclear Energy?
Answer:
Explanat}
there is long term storage for nuclear waste
What is coal used for
Answer: Coal is primarily used as fuel to generate electric power in the United States. In coal-fired power plants, bituminous coal, subbituminous coal, or lignite is burned. The heat produced by the combustion of the coal is used to convert water into high-pressure steam, which drives a turbine, which produces electricity.
Explanation:
25 POINTSSS AND BRAINLY THE SELECTED ANSWER IS WRONG BTW
Answer:
The second option
Explanation:
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. That is why cells are so small.
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