Answer:
To produce natural oils for the skin
Explanation:
The normal function of sebaceous glands is to produce and secrete sebum, a group of complex oils including triglycerides and fatty acid breakdown products, wax esters, squalene, cholesterol esters and cholesterol.
Sebum lubricates the skin to protect against friction and makes it more impervious to moisture
Which molecule is used to tell tRNA which amino acid is needed?
A. rRNA
B. mRNA
C. siRNA
Answer:
B. mRNA
Explanation:
anticodon – a sequence of three nucleotides on a tRNA molecule that bond to a complementary sequence on an mRNA molecule. The anticodon sequence determines the amino acid that the tRNA carries.
Answer:
B. mRNA
Explanation:
The mRNA is used to tell tRNA which amino acid is needed.
which function in plant cells is comparable to an animal eating food?
Answer:
Chloroplasts absorbing solar energy for cellular activities. I hope this helped :))
Explanation:
Fossil evidence has demonstrated that birds evolved from a group of small carnivorous dinosaurs. Scientists have hypothesized that some evolved into birds as they filled available niches. The most recent fossil discoveries have filled in many of the gaps in the evolution of birds from dinosaurs. Before the latest fossils were found, there were some scientists who questioned this idea that birds evolved from dinosaurs. In general, scientists constantly work to
Answer:
To find out the relationship of birds from dinosaur.
Explanation:
Scientists constantly work to find out the evolution of birds from dinosaur and relationship exist between them. Scientists do hard work in order to find out the evidences that shows and confirm the relationship of birds and dinosaur. These new discoveries provides evidences about the evolution and relationship between birds from dinosaur so we can conclude that scientists constantly find out the relationship between these two organisms.
explique le phénomène d'effet de serre
Answer:
mi no speak e de spanish
Explanation:
gay pride
The H substance is needed for the proper phenotypic expression of the A, B, and AB blood types in the ABO blood typing system in humans. Individuals who are recessive for the H substance (hh) will have a type O phenotype, even if they have the A and/or B alleles. Two individuals, each with type AB blood and heterozygous at the H locus have children. What is the probability they will have a child who is phenotypically type O?
Answer:
The correct answer is - 4/16.
Explanation:
In this question, it is stated that in ABO blood system the proper phenotypic expression of A, B, AB blood types needs H substance. If an individual has recessive for the H substance (hh) will have a type O phenotype.
The cross: ABHh and ABHh
gametes: two set of AH, BH, Ah, Bh
Punnett:
AH BH Ah Bh
AH AAHH ABHH AAHh ABHh
BH ABHH BBHH ABHh BBHh
Ah AAHh ABHh AAhh ABhh
Bh ABHh BBHh ABhh BBhh
As shown there is only 4 out of 16 offspring are recessive for H substance therefore, only 4/16 will have O blood group
Meiosis in males produces four identical sperm cells.
A. True
B. False
Answer:
B. False
Explanation:
Meiosis in males, not produces four identical sperm cells.
Meiosis is a type of cell division which involves the reduction in chromosomal content to half. The four daughter cells formed in meiosis are not identical. Thus, the given statement is false.
What is Meiosis?Meiosis is a type of cell division in which the number of chromosomes reduces by half than that present in the parent cell and produces four haploid gamete cells. This process is required to produce both male and female gametes- egg and sperm cells for sexual reproduction.
During the telophase II- last phase of meiosis, cell division is incomplete without another round of cytokinesis. Once the cytokinesis is complete there are four daughter cells, each with half a set of chromosomes (haploid) which are different due to the crossing over between chromatids.
Learn more about Meiosis here:
https://brainly.com/question/11622266
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. Which of these is a response of cats to external stimuli?
A hairs on the back stand up when scared
B decreased heart rate when sleeping
C movement of waste into the bladder
D temperature increases during an infection
Answer:
A. hairs on the back stand up when scared
Explanation:
B and C are not responses to stimuli, and D is a response to internal stimuli
two examples of heat energy
Answer:
sun and electric heater
Explanation:
sun is the biggest source of heat energy
electric heater is also an example of heat energy as it warms us
1. A cup of fresh coffee is very hot because the water particles are vibrating very rapidly giving the coffee heat energy.
2. A fire is a chemical reaction that is releasing energy as bonds are being broken, this energy is felt as warm or hot and is a release of heat energy.
Water that is dense will float while water that is less dense will sink.
True or false ?
Answer:
If an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float.
gametes are sperm and egg cells. True or false
Answer:
The correct answer is True
PLS ANSWEr NOWWWWWWWWWWWWWWW
Answer:
The answer for the third picture I believe is decomposers
Answer:
I believe that it's the last answer
An ecosystem is when plants and animals interact with each other in a specific area.
Explain what happens to an animal cell when it removed from an organism and placed into distilled water
Answer:
I think it has to do with osmosis
Explanation:
Osmosis is the process of having water pass from a low concentration medium to a high concentration one, given that the barrier (membrane) is semi-permeable.
When a cell is placed into distilled water, hypertonic solution takes place.
A cell may contain many solutes so it is considered hypertonic when compared to distilled water which is hypotonic So in this case, when a cell is placed in distilled water, water moves from outside of the cell to the inside leading to swelling of the cell.
Questions are in the attachments I’ll give a brainlist
cleavage
in cleavage there is division of cell without growth of cell
❗️❗️EARTH SCIENCE CLASS ❗️❗️Climate factors are the things that established and have changed the Earths climate for billions of years. Which one does include changing the amount of CO2 in our atmosphere
Answer:
Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay, or release gas), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement. Which this also adds to the temperature increase around the world due to our atmosphere keeping all of this CO2.
Identify one additional factor besides the plant seedlings and containers that should be held constant in this experiment.
Answer:
83hrhiddtifrd of r
Explanation:
hsejrndbhsuia b rb
The graph below shows the amount of CO2 (carbon dioxide) in the atmosphere throughout Earth’s history.
Which of the following claims is supported by the evidence in this graph?
A
The amount of CO2 in the atmosphere is currently decreasing at an extremely fast rate.
B
High amounts of CO2 in the atmosphere correspond to cold periods in Earth’s history, called ice ages.
C
The amount of CO2 in the atmosphere in 2018 was significantly higher than any other time in the past 800,000 years.
D
The amount of CO2 in the atmosphere from 1800 to 2018 increased at a slower rate than at any other point in the past 800,000 years.
Explanation:
is there a graph to be shown
Which statement is true about a cell wall but not a cell membrane?Which solution would most likely cause a plant placed in it to become firmer and more rigid?
Answer:
active transport
Explanation:
What might happen if genetically modified deer mice with white fur where accidentally released into the wild population of mice? Explain what would happen to each population of mice, brown and
gray. Discuss how the addition of this genetic variation will affect the future generations of mice.
Answer:
They die.
Explanation:
If genetically modified deer mice with white fur were accidentally released into the wild population of mice, they will die and decrease in population because these genetically modified deer mice with white fur can't survive harsh conditions of the mice. Their colour also attract the predators at night so they catch these genetically modified deer mice with white fur and feed on them which automatically decrease its population.
which process produce two genetically distinct haploid cells
Answer: mitosis
Explanation:
what is the mosquito average life's span
I’m pretty sure it’s correct but if someone could double check pls
it would be testies and ovaries
modern example of the scientific revolution
Answer:
Explanation:
One example of the Scientific Revolution is the Copernican revolution; it is the move from geocentric to the heliocentric view of the solar system.
What risk is most likely to happen when using wind as an energy source
Answer:
As with all energy supply options, wind energy can have adverse environmental impacts, including the potential to reduce, fragment, or degrade habitats for wildlife, fish, and plants. Furthermore, spinning turbine blades can pose a threat to flying wildlife like birds and bats.
which best describe the sex chromosomes
where are the options for the question??
What are the non-living components of an ecosystem?
what is the answer pleaseeeee?????
Answer:
75% brown 25 % green....m
NO LINKS PLEASE
What is a major difference between the nitrogen and phosphorus cycles?
O A. Animals excrete only phosphorus-containing compounds to add to the cycle.
O B. Soil erosion removes only phosphorus from its cycle in terrestrial ecosystems.
O C. Only nitrogen is added to its cycle from fertilizers.
OD. Only nitrogen exists as a gas for part of the cycle.
Answer:
D
Explanation:
phosphorus is usually not shown in gas form
Plz im begging you for a answer, my teacher is checking my progress!!!!!!!!!!!!!!!!!!!!!!!!!
Anthropologists have concluded that modern day humans originated from the continent of Africa. Looking at the distribution of skin tones we now see all over the world today explain why this pattern is makes sense for what we see today.
MUST USE AND HIGHLIGHT THE FOLLOWING KEY TERMS: variation, direct sunlight, UV radiation, Vitamin D, folate (folic acid), equator, evolution, parents, offspring, Africa, survival, natural selection, genes, latitude, adapt/adaptation
Answer:
Variation
Ape like creatures where able
to survive in Africa because of survival of the fittest, which meant that only the ones who were able to adapt to the conditions were able to live
What happens if you throw a rock hard enough? (Explain escape velocity)
Answer:
it would probably break something depends on were you are
Explanation:
what do you think if humans don't have stimuli?