Answer:
c. regulating gene expression
Explanation:
During development, early embryo cells release different ligand molecules that bind to specific receptors on the surface of nearby cells, thereby triggering signaling pathways involved in cell differentiation and development. These signaling events have been associated with the activation of transcription factors located in the cytoplasm which are then translocated into the nucleus where they activate the transcription of target genes. For example, sonic hedgehog (SHH) is a peptide hormone that plays roles during animal development. SHH is secreted by epithelial cells to activate transcription factors in nearby cells involved in several developmental processes.
What is the function of DNA? What does DNA do?
O DNA is used to communicate with neighboring cells.
O DNA allows cells to make glucose from sunlight
O DNA acts as instructions for the cell
o DNA allows cells to make ATP from sunlight
Answer:
3 - DNA acts as instructions for the cell
Explanation:
DNA is the Bluprint of our cells, every protein necessary for our lives is created using those instructions. every cell of every living creature contains DNA in one form or another.
Explain the ranking of the rate of photosynthesis in the basil plants caused by each light source
Explanation:
White light appears to be the most effective light for photosynthesis, but apart from white, red light is also effective. When white light is not used, red is more effective than its counterparts, most likely because red light has a long wavelength that allows it radiate more energy and heat than other color.
2. One organ system may be composed
of many
organelles
organs
Buildings use double-pane windows because
Answer:
Double pane windows significantly reduce your energy use (and costs), particularly in the winter, when you can see significant energy savings, depending on your specific windows and technologies.
Explanation:
Which of the following characteristics do eukaryotic cells have that prokaryotic cells do not have?
a nucleoid
organelles
a plasma membrane
a cell wall
Answer:
Organelle
Explanation:
The nucleoid is only present in the prokaryotic cell so it's not the correct option
Organelles, membrane bound organelles are only found in eukaryotic cells, hence this is the correct answer
The plasma membrane surrounds both types of cells
The cell wall can be present in both types of cells
How can the flu vaccine protect communities?
OA. It cures people who are already infected with flu viruses.
O B. It speeds up the reproduction of flu viruses in people.
OC. Itprevents people from getting sick from flu viruses.
O D. It kills the vector that spreads flu viruses to people.
Answer:
It is C.) It prevents people from getting sick from flu viruses
Explanation:
A similarly between the nervous system and the hormone-secreting system in humans is that they both
they both help to maintain homeostasis.
What is a plant according to biology?
Answer:
kh7n7h77n54hbjbu
muaiihfhdhfhfhffhdhrhhfhhfhhchfhfhfhfhfhdhfjufjfjfjfufuguugititkg7hdnd7hdjjjjjjnnnnnnnnbbbgffttyyhhnnnnnnnjjjji7nd7hec
Explanation:
un njjuuuuiiiiuuuuujjjjjjuuuui7iii77
What is the relationship between the distribution of coral polyps and the population
density of plankton in the water?
a. Coral polyp distribution is independent of plankton density because they live in different geographical locations.
b. If there is a high density of plankton in the water, then there will be a high coral polyp distribution.
c. If there is a high density of plankton in the water then there will be a low coral polyp
distribution.
d. The relationship between coral polyp distribution and plankton density is limited because they have different food sources.
Answer:
Coral polyps and zooxanthellae algae live in a symbiotic relationship to create coral reefs. The polyps give shelter to the algae while the algae create food for the polyp by photosynthesis. Therefore, the higher the density of phytoplankton, the higher the density of coral polyps.
Explanation:
S. cerevisiae occurs in nature on ripe fruit. S. epidermidis naturally occurs on human skin. How do experimental results relate to the natural environment of each microbe?
Answer:
S. cerevisiae needs natural environment present on ripe fruit while S. epidermidis needs natural environment present on human skin.
Explanation:
S. cerevisiae occurs in nature on ripe fruit because the environment is suitable for them that provides food in the form of sugar while S. epidermidis naturally occurs on human skin because it needs wet and humid environment which is available on human body such as armpits. Due to the presence of suitable environmental condition, both S. cerevisiae and S. epidermidis are present on fruits and human skin respectively.
Why do you think
so many
scientists were
involved in the
development of
the cell theory?
Answer:
everyone was skeptical of each other's work and findings and they wanted to do their own research. Also there has benn a bunch of technological advances over the years. microscopes became better and stronger as well
Explanation:
the chromosomes that pair up during meiosis are called _______ chromosomes
(fill in the blank)
Answer:
homologous chromosomes
Explanation:
homologous chromosomes is the answer
I hope this helps! If so please mark me the brianliest! Peace and love
a chemical reaction in which organic compounds are synthesized from their building blocks is called
Answer:
Dehydration Synthesis
Explanation:
DEHYDRATION (chemical), a chemical process consisting of taking away one or more molecules of water by some chemical connection. The process opposite to dehydration is hydration, ie. the addition of one or more water molecules to a chemical compound. Dehydration produces unsaturated compounds, such as olefins, ketones, and nitriles.
Which of these ideas would be the best course of action for decreasing land temperatures?
Answer:A
Explanation:
An entire species of rare flying insects have gone extinct. Out of every three individuals of an extinct animal, two of the three carried a defective gene. How many animals carried the normal gene in a population of 300?
Select one:
a. 100
b. 400
c. 300
d. 200
Answer: It would be, a 100
Mystery Bull
pls help me
Answer
there
Explanation:
hope this helps
Some examples where you have seen a chemical change and the mass has stayed the same
If the frequency of the disorder in the population is 0.0070, what is the percentage of heterozygous carriers
Answer:
15.322 %
Explanation:
Supposing that this is a recessive disorder and the population is in Hardy-Weinberg equilibrium:
p² + 2pq + q² = 1, where
1- the genotypic frequency of the homo-zygous dominant allele is p²,
2- the genotypic frequency homo-zygous recessive allele is q², and
3- the genotypic frequency heterozygous allele is 2pq
Therefore:
q² = 0.007 >> q = √ 0.007 = 0,0836
p = 1 - q = 1 - 0,0836 = 0.9164
2pq = 2 x 0.9164 x 0,0836 = 0.15322 (or 15.322 %)
3. What is it called when layers pile up and press
down on the material below?
a. Compaction
b. Cenentation
c. Layering
d. Stratification
8.
pls help it’s brainpop it’s 6th grade science lol
Answer:
Answer D
Explanation:
All other answers do help with balance, except whatever D is. Hope it helps. (if I'm wrong I'm sorry, I just don't understand what the final picture is for.)
Answer: It's C the one with the mouth and throat
Explanation: I just did a review quiz to find the answer
What is Newton's Law of Universal Gravitation?
A an object in motion stays in motion
® all objects with mass have gravity
gravity pushes and never pulls
D gravity only depends on the mass of an object
Answer :
Every object in the universe attracts any other object...
Please answer this is super easy 6th grade science! Thanks!
Answer:
The answer should be A. lithosphere.
Explanation:
Firstly, let's look at the options:
C. and D, both parts of the Earth at the core, have almost nothing to do with the Earth's crust or tectonic plates except maybe having a passive effect on them.
B. mantle is where the lava that moves the tectonic plates circulates due to convection, which is the reason they move at all. But, it is not where the tectonic plates themselves are.
Therefore, finally, we have A as the answer.
(As a sidenote, the "lithosphere" means the Earth's crust.)
Hope this helped!
how many kilometers will the pacific plate travel in 1 million years
Answer:
The Pacific plate travels approximately 107 km in a million year.
Explanation:
Modern Spreading Rate (R) = distance the seafloor moved in km (d) / age in million years (t)
R = d/t
To calculate it in millimeters per year we need to convert it:
1 km = 1000 m
1 m = 100 cm
1km = 100,000 cm
We know by the theory that the Pacific plates might be moving approximately between 10.6 - 10.75 cm/year. So, we might say that it moves 10.7 cm/year. So,
The Pacific plate moves 10.7 cm in one year
1 year-------------------------------- 10.7 cm
1,000,000 years ----------------- X = 10700000 cm
100,000 cm -------------- 1 km
10700000 cm -----------X = 107 km.
The Pacific plate moves approximately 107 km/my.
What happens after the gated channels close?
Answer:
Explanation:
After the gated channels close, which is as a result of depolarization of voltage, the positive charge that has been increased in the cell will make the potassium channels to open and this will gush out of the cell through its electrochemical gradients. When potassium ion move out of the cell, the membrane potential begin to get to resting potential.
Which of these is a characteristic of index fossils? (7 points) a Found in the topmost rock layer b Found in many layers of the same rock c Have already established relative age d Are limited to a particular geographic location
Answer:
it is in fact relative age
Explanation:
Have already established relative age is a characteristic of index fossils.
What do you mean by index fossils?
Index fossils are fossils used to define and identify geologic periods. Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends.
A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms.
Index fossils are the preserved remains of specific species found in the strata of sedimentary rock. They are easily recognized by shape and lived for either a short period of time, geologically speaking, or completely vanished from the Earth in a known extinction event.
Learn more about index fossils:
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During which phase of the cell cycle do sister chromatids first appear?
M phase
G1 phase
S phase
G2 phase
ILL MARK BRAINLIEST
Which statement describes Earth?
It is an outer planet.
It is a gaseous planet.
It was formed from gas and dust.
It has a thick atmosphere of hydrogen and helium.
Answer:
the answer is D
Explanation:
:) sorry im a bit late
animals release what into the atmosphere through what
Animals release carbon dioxide (CO2) into the atmosphere through the process of respiration.
What differences can you see when you compare the nucleus of a dividing cell with that of a non-dividing cell?
Answer:
Explanation:
The difference you can see when you comparethe nucleus of a dividing cell with that of a nondividing cell is that chromosomeswill be seen in the nucleus of the dividing cell because they are visible when acell is dividing apposed to non-dividing cells.
Help please due by midnight
Answer:
Contral group, independent veribal, Experitmental, and dependent group
Explanation: