The inner planets are _____ because of their closeness to the sun
Answer:
The inner planets, or terrestrial planets, are the four planets closest to the Sun: Mercury, Venus, Earth, and Mars. Figure below shows the relative sizes of these four inner planets.
Explanation:
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Can someone explain what this text means?
Encasing the cell is a membrane with special gates, channels and pumps that let in or
force out selected molecules.
Answer:
The text is explaining a cell membrane.
Explanation:
A cell membrane is made up of a phospholipid bilayer that acts as a kind of "skin" for the cell. The membrane helps the cell maintain homeostasis and filter out harmful particles. Elements like oxygen are allowed to pass through via protein channels, which act as gates. Does this answer your question?
Answer: It contains DNA, that's what is in the nuculus.
Explanation:
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tình trạng này chủ yếu là do vô cảm 1 phần ảnh hưởng từ các tác nhân xã hội
Which of the following is an example of a density-independent limiting factor?
Select one:
O a. a decrease in prey
O b. a natural disaster
O c. a food shortage
O d. a parasite
In a DNA molecule, which of the following forms a base pair with cytosine?
A. Guanine
B. Cytosine
C. Adenine
D. Thymine
Answer:
A. guanine
Explanation:
A genomic researcher is analyzing the genome of different species of raptors. She finds that a particular sequence in the Bald Eagle genome is identical to a sequence found in the Red Tailed Hawk, while most other sequences in those two genomes differ at many nucleotides. (The most recent common ancestor between Bald Eagles and Red Tailed Hawks was approximately 6.8 million years ago, which is plenty of time for mutation to generate DNA sequence variation.) Which of the following could explain the identical sequence in these otherwise differing genomes?
a. The sequence encodes a protein critical for the production of feather color.
b. The sequence encodes a gene that is critical for life and cannot be easily mutated while retaining function.
c. The sequence is from an intron of a gene that encodes a protein in connective tissue.
d. None of these
Answer:
d. None of these
Explanation:
Probably the identical sequence found in both species is an ultraconserved sequence.
An ultraconserved element is a particular DNI sequence that remains exactly the same through evolution, with almost no modification, and that is shared by at least two completely different species.
These ultraconserved DNI portions seem to be highly essential for life. However, their function could not be determined yet. Most of them do not codify for proteins, but they could play a significant role in gene regulation.
It is suggested that these sequences are so significant for life that only a small change would compromise the organism´s aptitude.
The statement 'the sequence encodes a gene that is critical for life and cannot be easily mutated while retaining function' could explain the identical sequences (Option B).
What is sequence homo-logy?The term sequence homo-logy makes reference to the similarity between nucleotide sequences due to a common origin.
If a sequence is identical between two or more species, then it exhibits a 100% sequence homo-logy.Sequence homo-logy enables the determination of the level of functional conservation in a given gene.In conclusion, the statement 'the sequence encodes a gene that is critical for life and cannot be easily mutated while retaining function' could explain the identical sequences (Option B).
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4. An enzyme that aids in breaking down of complex sugar into simple digestible
sugars is .... class9 standrad?
Answer:
One such enzyme is amylase.
Explanation:
Amylase is an enzyme found in saliva in the mouth that breaks down amylose in starch.
I need the answer of this please .
Answer:
picture one
it holds the cytoplasm and cell organelles inside it. acts as a contaniner allowing only certain substance to go out aand enter.
picture two
internal structure and shape
maintains and protects internal structure and shape of a cell
pict3
connection
Which statement describes a relationship that is an example of mutualism?
A. Remoras attach to and eat food on a sea turtle.
B. Ticks live on and drink blood from livestock.
C. Bees drink nectar from and pollinate flowering plants.
D. Rabbits live in and eat vegetables from garden plants.
Answer:
C. Bees drink nectar from and pollinate flowering plants.
Explanation:
Ecology can be defined as the scientific study of the relationship between living organisms such as plants and animals in relation to their physical and biological environment.
In Ecology, mutualism can be defined as an symbiotic relationship or interaction between two or more living organisms of different species that typically involves each organism benefiting positively. Therefore, mutualism influences the survival and reproduction of living organisms in their habitats.
Hence, the statement which describes a relationship that is an example of mutualism is bees drink nectar from and pollinate flowering plants. The flowering plants serve as a source of nectar for bees to feed on while the bees engage in the pollination of the flowering plants, suggesting a mutual benefit (mutualism) between the two species.
Pollination can be defined as a process which typically involves the transfer of a pollen grain from the male part (anther) of a plant to a ovule, stigma, or flower of a female plant, in order to stimulate fertilization and production of seeds. Also, this transfer of a pollen grain (male gametophyte) is often effected by bats, wind, birds and insects such as bees.
Answer:
Bees drink nectar from and pollinate flowering plants
Explanation:
what feature did terrestrial plants acquire in order to adapt to life on land to transport materials throughout their bodies
Answer:
they developed some structures or parts to survive
the terrestrial environment
The process of changing over time that occurs in a new ecosystem that starts with bare rock (like a new island formed in the sea)
A) Ecological Community gentrification
B) Ecology building
C) Ecological succession
D) Biosphere building
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What is the correct answer please?
Answer:
the answer is(e) that is x–linked dominant
Which products of the light reactions are used in photosynthesis?
electrons and carbon dioxide
ATP and NADPH
ATP and water
water and carbon dioxide
Answer:
ATP and NADPH
Explanation:
The light reactions of photosynthesis produce ATP and NADPH, which are used to power the second phase of photosynthesis (dark reactions), which is when carbohydrate synthesis occurs.
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Describe how the pH and hydronium ion concentration will change in a solution as an acid is added to it.
Answer:
If the hydronium concentration increases, the pH decreases, causing the solution to become more acidic. This happens when an acid is introduced. As H+ ions dissociate from the acid and bond with water, they form hydronium ions, thus increasing the hydronium concentration of the solution.
Define sustainable development and discuss some of the key issues that are essential in such a process .
Answer:
I just don't know sorry I just want points
Group - 'C'[4x3=121
12. How much energy is stored when a mass of 70kg is lifted upto
the height of 30m?
Answer:
E = 20580 J
Explanation:
Given that,
Mass of the object, m = 70 kg
It is lifted upto the height of 30 m
We need to find the energy stored when the mass is lifted. We know that, the energy stored by the object is given by :
E = mgh
Put all the values,
E = 70 kg × 9.8 m/s² × 30 m
E = 20580 J
So, 20580 J of energy is stored in the object.
plant reproduction requires the presence of auxins, as well as a large amount of sugar for energy. which two main plant tissues work together to release sugar and carry hormones so that reproduction can take place?
Answer:
The two main plant tissue that works together to release sugar and carry hormones so that reproduction can take place are: The ground and the vascular tissue.
Explanation:
The two main plant tissues that work together to release sugar and carry hormones so that reproduction can take place are Xylem and phloem.
What do you mean by Hormones?Hormones may be defined as a chemical delivered by endocrine glands and discharged into the blood and fascinated to a distantly located target organ.
Xylem is responsible for the transportation of water from the ground to the stem via roots, while phloem, the vascular tissue responsible for the transportation of dissolved sugar from the leaves to the other parts of the plants.
Therefore, it is well described above.
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Which of the following best describes the role of meiosis?
1Creating egg and sperm cells (gamete sex cells).
2Producing more cells for an organism to grow bigger.
3Producing more organelles.
4Creating new cells that are
Answer:
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Explanation:
fdsrt fdsss fddssscdddd fddr
i need help asap!! thank you very much
Answer:
the third option, commensalism
Explanation:
5/28 LC-1 Evolution
Evolution is best defined gs
o the changing of a population to simpler forms over time
process by which a population of organisms who are best adapted change over time
different populations adapting to the same environment
Answer:
F
Explanation:
F
What do aerobic respiration and anaerobic respiration have in common?
Answer:
The similarities between aerobic and anaerobic respiration, is that they both use glucose as the starting molecule. This is called the substrate. In addition, both aerobic and anaerobic respiration produce ATP, however, aerobic respiration produces a lot more ATP compared to anaerobic respiration.
Hope i helped , have a nice day :)
Answer:
A
Explanation:
Albinism (lack of pigment) in humans is caused by a recessive gene. If normal parents have an albino child, what is the probability that their next child will be normal for pigment color
Answer:
75% of getting a normal child next
Explanation:
If you plug in the traits of two normal adults into a Punnett Square you will get a ratio of 1:4 or 25% chance of getting an albino child (Example: AA, Aa, Aa, aa) "A" representing the dominant trait, and "a" representing the recessive trait.
5. Which statement best describes the molecular structure of protein, along with one of the
functions of proteins?
a. It is a straight chain hydrocarbon that can help fight disease
b. It is a complex, folded chain that helps regulate cell processes
C. It is a simple carbon, hydrogen and oxygen molecule that creates movement
d. It is a chain of nucleotides and forms muscle, bone, and ligaments
Answer:
B
Explanation:
Proteins have 4 levels of folds, and help regulate cell processes.
Solvency, cohesion, adhesion, hydrogen bonding, chemical reactivity, and thermal stability are all important properties of _________ and account for its ability to support life.
Answer:
Water
Explanation:
has the properties of water
Answer:
water
Explanation:
i just did it
Which characteristic distinguishes prokaryotes from all eukaryotes?
a. ribosomes
b. DNA
c. phospholipids in cell membranes
d. none, as both may share these features
e. cell wall
Answer:
c. phospholipids in cell membranes
How does fluoroquinolone help?
Where do we find most of our usable freshwater, and what can we do to keep it clean.
Answer:
we find most of our cleanest water in freshwater rivers and lakes and we keep it clean by using processing plants
Which of the following is a problem that communities must solve in order to
protect the health of their members?
A. Production of wastes
B. Wasting of time
C. Need for recreation
D. Need for entertainment
How has the climate changed in the last 100 years and how do you imagine it will be for the next 100 years?
