Answer:
They all start out as a single cell and develop the same pattern of structures such as tails and pharyngeal slits. Some of those structures remain as the embryo gets older, but others go away.
Explanation:
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All vertebrates evolved from a common ancestor, the genetic data that directs their development is nearly the same.
How do these similarities support the theory of evolution?Numerous types of proof support the theory of evolution Homologous structures supply proof for shared ancestry, while analogous structures exhibit that alike selective forces can produce similar adaptations
Thus, the development of a human, pig, frog, and chicken the same due to genetic data.
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A group of scientists wants to observe the adaptation of a foreign fish species in a river ecosystem. To do this, they want to enclose the top and sides of a section of a river to block light and matter from entering the area. Evaluate whether this experimental system is an isolated system. Justify your answer based on the definition of an isolated system.
Answer:
yes because a thermodynamic system (isolated system) enclosed by rigid immovable walls through which neither mass nor energy can pass.
1 connection between mutations and reproduction
Answer:
An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation. Without mutation, evolution could not occur.
Explanation:
Fond correct answer please
Answer: The answer would be Precipitation.
Explanation:
What does a poison control center do?
Explain your answer well and I shall give brainliest. How does the structure of a root hair cell support its function?
can someone plz help me with this
Answer:
igneous, sedimentary, and metamorphic
Explanation:
Igneous rocks form when molten rock cools and solidifies.
tudy the arrow that is circled in the image.
The sun is in the sky. Clouds with blue arrows pointing down toward water. A circled arrow is pointing from the water inland. Red arrows are pointing up from the land to the sky.
What happens at this point?
Warm air is rising.
Cool air is sinking.
There is a difference in air pressure.
Cool air is less dense than warm air.
Dont answer with anything including arrow'S There is no S read it before answering
Answer:
The blue arrows in circles indicate that cool air is sinking
Explanation:
Warm air is less dense than cool air. For this reason, warm air rises, creating a low pressure region, and cool air, which is more dense than warm air, sinks creating a high pressure zone. In this description, the red arrows represent the hot air rising up to the sky, and the blue arrows represent the cool air sinking down. The reason warm air is less dense is because its molecules are further apart than when it is cold, making it lighter per cubed square foot.
So, we can conclude that option a) Warm air is rising is incorrect, because the warm air rising is represented by the red arrows pointing up form the land to the sky.
Options c) Cool air is less dense and d) warm air is more dense are also incorrect, because as mentioned before, cool air is more dense than warm air.
The rescue workers can get energy to the batteries in their equipment during rescue missions by using a generator to convert the kinetic energy to potential energy. ... The best way is to use a hand crank such as a hand cranked flashlight or radio because it is easy to power enough energy for a short amount of time.
Answer:
e rescue workers can get energy to the batteries in their equipment during rescue missions by using a generator to convert the kinetic energy to potential energy. ... The best way is to use a hand crank such as a hand cranked flashlight or radio because it is easy to power enough energy for a short amount of time.
Explanation:
How does the structure of a root hair cell support its function? Explain your answer and I will give brainliest.
Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption. They also contain lots of mitochondria, which release energy from glucose during respiration to provide the energy needed for active transport.
What are Root hair cells?Plants do not have a heart, blood, or circulation system, but they do need a transport system to move food, water, and minerals around.
They use two different systems - xylem moves water and mineral ions from the roots to the leaves - phloem moves food substances such as sucrose (sugar) and amino acids from the leaves to the rest of the plant. This movement of food is called translocation. Both of these systems contain cells that make continuous tubes running the full length of the plant from the roots, up the stem, and through the leaves. They are like blood vessels for the plant.
Plants absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient. Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption. They also contain lots of mitochondria, which release energy from glucose during respiration to provide the energy needed for active transport.
Learn more about Root hair cells
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HELP please PLEASEWhat are nostrils full of?
tiny hairs
olfactory nerves
mucus
olfactory bulbs
Please hurry im timed while doing this. thanks
rainfall i think
Explanation:
What is true about a strand of DNA?
Question 5 options:
A. It contains many genes
B. It contains many proteins
C. It contains many strands of mRNA
D. It contains many chromosomes
I tried the last one, " It contains many chromosomes" and " It contains many strands of mRNA" and they were both wrong so its either A or B
A i think
i hope this helps