Answer:
A
Explanation:
A
How does the ectoderm that will make up the future eye know to develop into an eye? The cells are "told" to develop into an eye because the nearby retina releases chemical signals that direct the development of the cells. This process is called induction. Choice A depicts a similar situation. The notocord releases chemical signals that tell the overlying ectoderm that it is time for it to become the neural tube. None of the other choices depict the process of induction.
Which idea was supported by Aristarchus, Copernicus, and Galileo?
answer:
the planets revolve around the sun
A coastal region has a warm climate, but tourism to the area is focused on fishing rather than swimming at the beach due to cold ocean water. Which ocean movement and result likely cause this type of environment?
Upwelling is the type of ocean movement which will result likely in this type of cold environment.
What is Upwelling?This is a process in which deep, cold water rises toward the surface and usually contain a higher concentration of nutrients.
Swimming at the beach due to cold ocean water is as a result of the process of upwelling.
Read more about Upwelling here https://brainly.com/question/13967215
differences between the three classes of platyhelminthes
Answer:
The phylum Platyhelminthes consist of three different classes: Turbellaria, Cestoda and Trematoda. Class turbellaria is composed of many free-living organisms, while some are parasitic. Trematodes are commonly known as flukes. They are parasitic flatworms with an unsegmented body.
Explanation:
The three classes of Platyhelminthes are Turbellaria, Cestoda, and Trematoda.
What are the differences between the three classes of Platyhelminthes?Flatworms are members of the Platyhelminthes phylum. The Turbellaria, popularly known as planarians, the Trematode, usually known as flukes, and the Cestoda, also known as tapeworms, are the three classes that make up the phylum Platyhelminthes. Flatworm species come in more than 25,000 different varieties.
The four classes of Platyhelminthes are Cestoda (tapeworms), which are internal parasites of many vertebrates; Trematoda (internal parasites of humans and other species); and Turbellaria (free-living marine species).
Thus, these are the differences between the three classes of platyhelminthes.
Learn more about platyhelminths, here:
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A population of mosquito larvae is living in a large pond. Mosquitofish are a type of fish that eat mosquito larvae. Which of the following describes a direct effect on the population of mosquito larvae when mosquitofish are introduced to the pond? *
A: immigration decreases
B: births decrease
C: emigration increases
D: deaths increase
Answer:
C. emigration increases
Explanation:
Just took the test
What is a substance that is used up during a
chemical reaction called?
7. What do sea spiders use for gas exchange?
Answer:
sea spiders are marine arthropods that lack gills and rely on cutaneous respiration but still grow to large sizes. Their cuticle contains pores, which may play a role in gas exchange
How does photosynthesis contribute to the organism’s energy needs
Answer:
Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules. The energy used to hold these molecules together is released when an organism breaks down food. Cells then use this energy to perform work, such as cellular respiration.
Explanation:
Which specific anterior pituitary hormone stimulates
cortisol steroid hormone production?
Answer :Adrenocorticotropic hormone
Explanation:
Adrenocorticotropic hormone (ACTH) is produced by the pituitary gland. Its key function is to stimulate the production and release of cortisol from the cortex (outer part) of the adrenal gland.
What evidence did Galileo provide to support Copernicus's heliocentric model? Check all that apply.
Galileo determined the shape of each planet's orbit by a mathematical method called triangulation from different
points on Earth's orbit.
Galileo created a model showing the epicycles of the planets, which explained retrograde motion.
Galileo used a telescope to study the moons orbiting Jupiter. This showed that Earth was not the center of all
things.
U Galileo explained that people did not see stellar parallax because the stars were simply other suns that are very
far away.
Galileo discovered the phases of Venus, proving that at least one planet orbited the Sun.
Intro
Done
Answer:
- Galileo used a telescope to study the moons orbiting Jupiter. This showed that Earth was not the center of all things.
-Galileo discovered the phases of Venus, proving that at least one planet orbited the Sun.
Explanation:
Galileo discovered evidence to support Copernicus’ heliocentric theory when he observed four moons in orbit around Jupiter. Beginning on January 7, 1610, he mapped nightly the position of the 4 “Medicean stars” (later renamed the Galilean moons). Over time Galileo deduced that the “stars” were in fact moons in orbit around Jupiter.
At about the same time, German mathematician Johannes Kepler was publishing a series of laws that describe the orbits of the planets around the Sun. Still in use today, the mathematical equations provided accurate predictions of the planets’ movement under Copernican theory. In 1687, Isaac Newton put the final nail in the coffin for the Aristotelian, geocentric view of the Universe. Building on Kepler’s laws, Newton explained why the planets moved as they did around the Sun and he gave the force that kept them in check a name: gravity.
Hope this helps!
If you have any queries please ask.
what is true of levels of c02 in the atmosphere?
Answer:
412.5 Parts per million.
Explanation:
Based on preliminary analysis the global average atmospheric carbon dioxide in 2020 was 41 2.5 parts per million setting a new record high amount despite the economic slowdown.
Which would have a bigger effect on an organism, an error during transcription or a missense mutation? Explain in one or two sentences. (
A missense mutation will change the amino acid sequence. This may alter the function of the protein, usually negatively, but sometimes positively. This later case may be favored by evolution, as the change is heritable.
Minor external bleeding can be controlled by direct pressure and placing a sterile dressing over the wound
O True
O False
Answer:
true
Explanation:
true maintaining pressure over a wound can control bleeding and a serile dressing is used to minimize bacteria and infection :)
describe how energy is transferred through a food chain
PLSS ANSWER IM BEGGING YOU
Well energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.on:
Answer:
Energy is passed between organisms through the food chain. Food chains start with producers. They are eaten by primary consumers which are in turn eaten by secondary consumers. They are then eaten by tertiary consumers and in a long food day these can be eaten by quaternary consumers.
Which type of rock would most likely be found near the landform shown in the picture?
Answer:
Igneous rock because it forms when hot molten rock (lava) crystallizes and solidifies .
Explanation:
Have a Nice day!! :D
What role(s) do the lions play in the lion king?
Which of these planets has characteristics most similar to Saturn?
Jupiter, Uranus, and Neptune
Mercury, Venus, and Earth
O Venus, Earth, and Mars
Earth, Mars, and Saturn
Do these fossils support the theory of evolution?
Answer:
yes because the animal changed over time
Explanation:
When organisms live in isolation with unlimited resources and no predators, this can lead to
island gigantism
variable speciation
variation in species
reproductive success
Answer:
The answer is Island Gigantism
Explanation:
I took the test
What is salinity and how does it change?.
A balance between water withdrawn by evaporation and freshwater added by rivers and rain controls salinity. The Mediterranean Sea in Europe has a salinity of 38 parts per million or more. It's nearly cut off from the main ocean, and there's more evaporation than rain or additional freshwater from rivers.
Describe the different internal and external factors that affect human health.
Answer: Biology, psychology, emotions, spirit, energy, lifestyle, culture, economic and political influences, social interactions in family, work, living area and the possibilities to expresses oneself and live full life with a sense of well-being have influence on people appearances.
Explanation:
Explain why the pattern of differences
that exists from earlier to later fossils in the
fossil record supports the idea that evolution
has taken place on Earth.
Answer:
Different layers of fossils found in sedimentary layers of the earth show that past species have died off and adapted in order to survive.
Explanation:
Who purchases recycled materials from recycling centers?.
Answer:
1. Beverage Companies. Companies that produce beverages are the buyers of recycled materials from recycled centers.
2. Companies that Produce Plastic Goods. Businesses that manufacture plastic products are other buyers of recycled materials.
3. Paper Mills.
4. Toy Production Companies.
Primitive meteorites can be distinguished from other meteorites and terrestrial rocks because they:.
Answer:
The strength of gravity on small asteroids is less than the strength of the rock. Primitive meteorites can be distinguished from other meteorites and terrestrial rocks because they. contain a noticeable fraction of pure metallic flakes.
Why do you think the cell
theory has yet to be
proven false?
By definition, each living animal has a single cell, all living shapes are formed out of a single cell, and most living cells originate from other living cells, as demonstrated by the cell hypothesis. It has been recognized that this theory is incorrect.
The activity in which each cell absorbs food, grows in size and divides into two new cells is referred to as
Explanation:
Mitosis in Eukaryotic cells
Which is NOT an example of leaves humans commonly eat?
Spinach
Zucchini
Kale
Field greens
Answer:
zucchini
Explanation:
Which action involves mixing soil with organic materials to improve soil quality?
A.
crop rotation
B.
conservation
C.
composting
D.
terracing
C. composting
it is the process of mixing of biodegradable organic material to the soil to inc the soil fertility
How do the structures of organims body be used as evidence of evolution?
First discovered enzyme is?
Answer:
The first discovered enzyme was Zymase. It naturally occurs in the yeast and helps in fermenting the sugar molecules producing carbon dioxide and ethanol.
explain why norepinephrine requires a protein receptor to exert its effects.
Answer:
I'm going off the top of my head for this one, and this is an educated guess, so check it if you would like to. When the norepinephrine binds to a protein, then the protein relays the info to the cells that are required to do the specific action. This is why we feel a sense of stress, elevated heart rates, or high alertness.
(I'm 13 so you might want to check a lot)