can someone pleaseeeee answer paper 7, 8, 9 at least one of them ;-;
Answer this quickly please
A certain type of frog reproduces sexually and has 36 pairs of chromosomes in each of its body cells. How many chromosomes are in each of the frog’s sex cells?
A. 9
B. 18
C. 36
D. 72
Answer:
C.36
Explanation:
Answer:
Once again I'm here to prove the top one is correct.
Explanation:
Some 95% of frog species examined to-date, including Xenopus, the current model frog, possess homomorphic sex chromosomes 67, 68. Why and how sex chromosome homomorphism is maintained in so many species of this (often evolutionarily ancient) group is a mystery.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4091447/
What is the ethical value of using a model organism, such as zebrafish for doing marine research on pathogens?
The organism can prevent diseases from being transmitted from one species to another, thereby reducing fish mortality.
The organism is immune to all diseases, so the effectiveness of new treatments can be studied over long periods of time.
The organism produces chemicals that can be extracted for use as antibiotics, so they are economically important.
The organism shares its physiology with humans, so testing of new drugs can be done without hurting people.
Answer:
The Answer is C
Explanation:
Answer: i think it c
Explanation:
ANSWER THE QUISTION IN PICTURE GIVING BRAINLIEST IF CORECT
Answer: It could be B. or C. I would go with B because it mentions the guard cells
Explanation:
Stomata are composed of two guard cells. These cells have walls that are thicker on the inner side than on the outer side. This unequal thickening of the paired guard cells causes the stomata to open when they take up water and close when they lose water.
Answer:
B
Explanation:
Species of fossil found in bottommost layer
A Mesohippus
B Hyracotherium
C Miohippus
D Orohippus
Answer:
B. Hyracotherium
Explanation:
Order from youngest to oldest:
Miohippus
Mesohippus
Orohippus
Hyracotherium
Need Help!
What conclusion can be drawn about the number of elements the make up the majority of the world in which we live and the total number of elements identified on the Periodic table?
Answer:
I think what you're reaching for is how the vast majority of the world we live in is comprised of only a few elements on the periodic table (carbon, hydrogen, oxygen, to name a few).
Explanation:
The other molecules identified on the periodic table do exist in nature but in much smaller quantities than those of a select few atoms.
Answer:
Of these 118 elements, 94 occur naturally on Earth. Six of these occur in extreme trace quantities: technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94.
Explanation:
PLEEASEEE HELPPPPP) Which of the following is the overall goal of all territorial behavior?
A. to maintain access to a particular type of environment
B. to impress mates in order to reproduce
c. to gain resources to increase success
d. to defend food sources for personal use
Answer: A or D, mostly D
Explanation: I say this because if they have something that's theirs, they are gonna mark their territory. just like a dog. They want other dogs ( other animals) to know that that's their domain. If it wrong please say so.
what do you need to make good fried chicken? (This is a required answer btw)
HELP ASAP!!
Research how coral reefs are formed. What types of animals live there? What important roles do cnidarians play in coral reefs? How do the tiny animals get their food? How do algae help the corals? Write three-paragraphs describing coral reefs. Include the information listed above plus any other information you find.
please help!!!!
options:
W - between 2.5 and 3.5/greater than 3.5/less than 2.5
X - between 2.5 and 3.5/between 3.5 and 6.5/greater than 6.5
Y - between 2.5 and 3.5/less than 2.5/greater than 6.5
Next Sandra tests the hardness of each mineral by scratching it with different materials as shown in the chart. The values in the chart are based on the Mohs Scale of hardness, which ranks the hardness of minerals on a scale of 1 to 10. The harder the mineral is, the higher its rating will be. If the material is harder than the mineral, it will scratch the mineral. For example, according to this scale, if a mineral is unable to be scratched by a steel nail, then the mineral has a hardness greater than 6.5.
TELL ME THE ANSWER
PLEASE HELP 20 POINTS
Ok so choose 2 ecosystems which is not that hard aquatic and terrestrial research your information on the sight i can not do the work for you, don't forget to check your spelling and punctuation
Which of the following factors limits the abilities of populations within an ecosystem to survive?
A. The frequency of reproduction of each species
B. The number of organisms becomes too large
C. Availability of space, shelter, food, and water
D. Availability of a diversity of species
Please Help! ☹️
Answer:
c
Explanation:
Availability of space, shelter, food, and water can determine the population of animals and plants. If there's an abundant supply of those items species can thrive but if those items are scarce the species in that area can decrease.
The availability of space, shelter, food, and water is a limiting factor for the population within an ecosystem to survive. Therefore, option C is correct.
What are the limiting factors of a population?A system variable that noticeably alters output or another system-related metric is said to be a limiting factor. The limiting factor is made up of organisms arranged in a pyramid from producers to consumers and so on.
Anything that limits the size of a population and slows or prevents its growth is referred to as a limiting factor. Biologic factors including food, mates, and competition with other species for resources are some examples of limiting constraints.
These elements are scarcely available. As a result, in the ecosystem, species frequently contend for the few resources available. Hence, option C is correct.
Learn more about limiting factors, here;
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What is an individual with an eating disorder most likely to do?
A. restrict food from fear of gaining weight
B. limit control over the amount of food consumed
C. perform moderate exercise to stay in shape
D. stop consuming food after feeling full from a satisfying meal
Answer:
A. Restrict food from fear of gaining weight.
Explanation:
The correct option is A.
Which factor increases the risk of developing eating disorders?
One of the strongest risk factors for an eating disorder is perfectionism, especially a type of perfectionism called self-oriented perfectionism, which involves setting unrealistically high expectations for yourself.
What counts as an eating disorder?An eating disorder is a serious mental illness, characterized by eating, exercise, and body weight or shapes becoming an unhealthy preoccupation of someone's life.
Learn more about eating disorder here https://brainly.com/question/2550052
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Explain how the brain regulates metabolism.
Answer:
The brain senses peripheral metabolic signals through hormones (insulin, leptin and so on) and nutrients (glucose, free fatty acids and so on) to regulate glucose metabolism. The sites of the convergence of these metabolic signals are the hypothalamus and brain stem
what type of mixture be separated using magnetism
Answer:
Keywords Constitutents , Magnet , Methods Of Separation
Controller Required Yes
Languages English - US , English - UK , 中文 , عربي
Domain K-12
Topic Code MS200036
Explanation:
Answer:
Heterogeneous mixture
Explanation:
A Heterogeneous mixture whose components are attracted differently to a magnet.
ILL GIVE BRAINLIEST!!
Please help! Someone he’ll me put these in order please. Thank you!
Answer:
It's the last 1 my guy (D)
Explanation:
it makes sense that the sand gets there first before anything else
When the oxygen in the air combines with the iron exposed by paint peeling off an old
bicycle, a new, red-colored, crumbly substance is formed.
Physical or chemical?
Specific type of physical or chemical
Answer:
Chemical change
Explanation:
When there is a lot of pollution, rain can be acidic, harming plants and animals. This is an example of which type of interaction?
A. an individual affecting a community
B. competition between a population and a community
C. an abiotic factor affecting an ecosystem
D. a mutualistic type of symbiosis
Answer:
I think its C come at me if im wrong
Explanation:
Which example is a biotic factor of an ecosystem?
Answer:
A biotic factor is a living organism that shapes its environment. In a freshwater ecosystem, examples might include aquatic plants, fish, amphibians, and algae.
A. Fungus is a living organism
;-; i know how to do it im just not sure
Coriolis________is the deflection of winds to the right in the Northern Hemisphere and to the left in the Southern Hemisphere because of Earth's rotation.
Answer: Effect
Explanation:
It's the Coriolis Effect
Introduction: Identify a land feature and an ocean-floor feature; include their location. Discuss the purpose of the model.
Model: Your model should visualize the details of your text. For each land formation feature and ocean-floor feature of your model, describe in detail the following:
The internal processes leading to the formation of the geologic feature.
The external processes that occur and their effect on Earth’s surface.
A geographic scale to show the relative size and extent of the land and ocean-floor features.
Conclusion: Your conclusion will compare and contrast the formation of land and ocean-floor features. Describe how the constructive forces and destructive forces differ in time when creating these features.
Resources: List each source consulted, including those of all images and diagrams. Remember to use only reliable resources
Land Feature: Grand Canyon, located in Arizona, United States
What is the Grand Canyon?The Grand Canyon was formed through a combination of internal and external processes. The internal process that led to its formation was the uplift of the Colorado Plateau, caused by tectonic activity along the North American Plate. This uplift increased the elevation of the land, causing erosion to occur more rapidly.
External processes, such as weathering and erosion by the Colorado River, also contributed to the formation of the Grand Canyon. The Colorado River carved through the layers of rock, exposing the different rock formations and creating the unique landscape we see today.
The Grand Canyon has a geographic scale of 446 km long, up to 29 km wide, and over 1.6 km deep.
Ocean-Floor Feature: Mid-Atlantic Ridge, located in the Atlantic Ocean
The Mid-Atlantic Ridge is an underwater mountain range that was formed through the process of seafloor spreading. Magma from the Earth's mantle rises up to the surface and solidifies, creating new oceanic crust. As new crust is formed, the existing crust is pushed away, causing the seafloor to spread apart.
External processes, such as erosion, do not occur on the ocean floor, so the Mid-Atlantic Ridge is mostly unaffected by external processes.
The Mid-Atlantic Ridge has a geographic scale of 16,000 km long, 1,000 km wide, and up to 4 km high.
In conclusion, land formations, such as the Grand Canyon, are primarily formed by external processes, while ocean-floor features, such as the Mid-Atlantic Ridge, are primarily formed by internal processes.
Constructive forces, such as tectonic activity and seafloor spreading, are responsible for creating both land and ocean-floor features, while destructive forces, such as erosion, are more prominent in the formation of land features.
The time scale for the formation of these features also differs, with land features taking longer to form due to the influence of external processes.
Sources:
"Geology of the Grand Canyon" by the National Park Service"Mid-Atlantic Ridge" by Encyclopaedia BritannicaRead more about land features here:
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Which type of succession (primary or secondary) is going to have the biggest impact on an ecosystem?
Answer:
Secondary succesion because secondary succession follows a major disturbance, such as a fire or a flood.
Answer: The secondary succession is going to have the biggest impact
Explanation:
PLEASE HELP EMERGENCY!! IF YOU ARE NOT 100% SURE ABOUT YOUR ANSWER DO NOT ANSWER THEN!! PLEASE!!
If cells in your body get damaged, it then makes it difficult for the _________ in your body to do their job. Select all that apply.
tissues
organs
organ systems
other organisms
(This is 7th grade science)
Answer:
tissues
Explanation:
hope this helps<3
Answer:
It is tissues.
(this isn't biology because they didn't have the subject I need)
What kind of texture would an igneous rock that formed deep underground have?
completely smooth
coarse-grained
fine-grained
grains of many different sizes
Answer:
coarse-grained
Explanation:
Intrusive rocks have a coarse grained texture. Extrusive Igneous Rocks: Extrusive, or volcanic, igneous rock is produced when magma exits and cools above (or very near) the Earth's surface. These are the rocks that form at erupting volcanoes and oozing fissures.
identity the 3 types of RNA that play roles in protein synthesis in this image
mRNA, rRNA, and tRNA are the three main types of RNA involved in protein synthesis
Were does all the energy start from ALL the organisms
Answer:
The sun
Explanation:
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.
Answer:
from sun all the energy starts from All the organisms it is the fact that scientist had proven itIdentify the type of strength that is shown by
(a) the chain that connects a ship to its anchor
(b) a piece of very tough dried meat you are chewing
(c) a bolt you are tightening with a wrench
(d) the legs of the chair you are sitting on
all you need to know is in the pic below
Use examples to explain how the biosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences. (7 points)
Answer:
Answer:it involves the biosphere because the geosphere gives the plants and life a place to grow it involves the hydrosphere because it gives the water a place to go on the earth and the sea animals
Explanation: