What do valleys on the surface of a planet or moon suggest about previous land features?
A.
the presence of human life forms
B.
the presence of water
C.
the presence of earthquakes
D.
the constant bombardment of asteroids

Answer: Metal      I'm not even sure man don't

trust me

Explanation: Metal is very hot and is heated to be made and also it is a conductor that absorbs heat.   I am smart and so are you

Answer:

C is true, D is false  b and A are true so basically

Explanation:

A,B,C are true

Answer: Temperate Grasslands are described as having no trees, varying weather, and having fertile soil. The most common weather is low weather, and it can vary from -4 degrees fahrenheit to 85 degrees fahrenheit.

Producers in this land would be grass, moss, and shrubs. (Most plants)
Consumers would be coyotes, lizards, birds, and more.

Answer: Free nitrogen comes from bacteria breaking down the nitrogen compounds which causes it to be released in the air. Fix nitrogen is from soil, plants and animals consuming it which causes it to recycle, nitrogen is cycled through: plants, soil, animals, bacteria and water and the atmosphere. I hope this helped!

Explanation:

Bacteria breaking down nitrogen compounds releases free nitrogen.Explanation:The nitrogen cycle is a process in which nitrogen is recycled through different components of the environment. Bacteria play an important role in this cycle by breaking down nitrogen compounds found in plants, animals, and soil. When bacteria break down these compounds, they release free nitrogen into the environment. This free nitrogen can then be used by other organisms like plants to create proteins and other essential molecules. So, bacteria breaking down nitrogen compounds is an important step in the nitrogen cycle.

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I think it would be A.

Answer:

a. Baltimore is a place slaves rarely got to see, so those who did were held in a high regard.

Explanation:

Explanation:

Some structures are internal, like the lungs, brain, or heart. Other structures are external, like skin, eyes, and claws. Some structures are unique, like the long neck of a giraffe. Other structures are more common, like a heartStructure and Function: Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction.

Answer:

Satellites, Radars, Storm Spotters

Explanation:

Meteorologists use these tools and techniques to distinguish one storm from another based on their location, size, shape, intensity, movement, and features. They can also compare different sources of information to verify or correct their analysis of a storm.

Answer:if youre talking only about frogs and pigeons then.....a frog has four limbs.

a pigeon walks on 2 legs

Explanation: the frog has 2 limbs at the back and 2 on the front....

a pigeon walks with its two tiny legs

shared derivation is that they both lay eggs

The frog has 2 limbs at the back and 2 on the front. a pigeon walks with its two tiny legs.

A cladogram is a representation of a potential link between groupings of species, including their shared ancestors. The Greek terms "clados" and "gramma," which mean "branch" and "character," respectively, are the origin of the words "cladogram."

The image gives the impression that a tree trunk is sprouting branches. Yet, the cladogram's form is not necessarily vertical. The diagram's sides, top, bottom, and center can all branch off of it.

Cladograms can be exceedingly complicated, potentially classifying all forms of life, or very simple, comparing only a few types of organisms.

Therefore, The frog has 2 limbs at the back and 2 on the front. a pigeon walks with its two tiny legs.

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From the diagram of the rock cycle the missing part is ( B ) ; Melting

Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.

Magma is released to the earth surfaces during volcanoes therefore the missing term  in the rock cycle is melting

Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.

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Answer:

A. ATP

B. Yes, protons move with the concentration gradient

C. proton gradient across mitochondrial and chloroplast membrane.

Explanation:

A. During cellular respiration and photosynthesis, the free energy produced by the flow of electrons across the mitochondrial membrane and stroma lamellae leads to the formation of ATP molecule.

B. Due to the movement of electron down the reducing equivalent causes the flow of protons across the membrane. This leads to the formation of a concentration gradient.

C. The energy which drives the formation of ATP from ADP comes from the kinetic energy provided by the movement of protons across ATP synthase.

D. The back-flow of protons from intermembrane space of mitochondria to the matrix through ATP synthase and backflow from thylakoid lumen to stroma through ATP synthase add Pi to ADP and form ATP.

Answer: You're right its b.

Explanation:

Human activity has rapidly increased the emission of greenhouse gases to the atmosphere. Since the start of the Industrial Revolution, in about 1750, human activities such as burning fossil fuels, including coal and oil, have increased greenhouse gas concentrations in our atmosphere.

Answer:

Sulphur is the answer I think

Answer:

Sedimentry

Explanation:

Answer:

That honestly looks more like some type of meat then a rock but I believe it is sedimentary

Explanation:

Answer:

It should be 450 meters away

I believe the correct alternative is: a) 450 meters

I apologize if this is incorrect. I hope you have a lovely day!

Answer: it’s A

Explanation:

The given question is showing a dihybrid cross in which leaf shape and leaf color are studied SsCc x SsCc.

Dihybrid cross states that when crossing between plants having to study two different characters parallel. In this cross, we study plants' leaf shape and leaf color.

A cross between - SsCc x SsCc

Gamete- SC, sC, Sc, sc

Offsprings having the same genotype as parents- 4

Round and dark green leaves- 9

Round and light green- 3

Pointed and dark green- 3

Pointed and light green- 1

The cross between plants is attached in the image below.

Therefore, Offspring having the same genotype as parents is 4.

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Answer: The Low Pressure systems will usually be found more North where it gets verycold but can really happen anywhere, and High pressure systems are usually found in the Southwest during winter.

Explanation:

A high pressure system has higher pressure at its center than the areas around it. Winds blow away from high pressure. Swirling in the opposite direction from a low pressure system, the winds of a high pressure system rotate clockwise north of the equator and counterclockwise south of the equator. This is called anticyclonic flow. Air from higher in the atmosphere sinks down to fill the space left as air is blown outward. On a weather map, you may notice a blue H, denoting the location of a high pressure system.

A low pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet. As the air rises, the water vapor within it condenses, forming clouds and often precipitation. Because of Earth’s spin and the Coriolis effect, winds of a low pressure system swirl counterclockwise north of the equator and clockwise south of the equator. This is called cyclonic flow. On weather maps, a low pressure system is labeled with red L.

Answer:

The first one

Explanation:

Answer:

A

Explanation:

Both are made of tissues.

The organs in an organism and organelles in a cell both are similar as they both are made up of tissue. Thus, option A is correct.

The tissue is defined as a group of cell added together to form a tissue present in body and plays a vital role in covering of all internal as well as external area and organs of body, hollow organs and body lines cavity.

The structure of epithelial cells are they combined together by fitted junctions as well as adhering junction and attached to extra cellular matrix.

Tissue is the compact structure of cell and later tissue combined together to form organ and than organ system is formed to perform various functions of the body.

Therefore,the organs in an organism and organelles in a cell both are similar as they both are made up of tissue. Thus, option A is correct.

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Answer:

fall is the season that the leave starts to change colors so I would call it fall

1. If one body system did not interact with other systems the body would possibly not totally collapse the body it would just affect what you can do and your functions that you could do.

2. If a persons heart rate increases it would benefit the muscular system because the heart puts more blood to the muscles making it stronger.

3. the difference between the left and right side of the heart is that the right receives oxygen-poor blood and pumps it to the lungs while the left pumps the oxygen-rich blood through and to the arteries and other parts.

4. Thats a SUPER broad question.But in layman terms. Muscles are connected to Tendons, When you want to move anything. your muscles will pull on the tendons which pull on a bone.Muscles contracting causes movement. even things where you feel like you’re pushing. its still a muscle pulling, muscles cant push, can only pull (when you “push” its your chest muscles contracting pulling your arm in towards the middle of your body, e.g pushup/bench press).

5. Unlike the small intestine, the large intestine produces no digestive enzymes. Chemical digestion is completed in the small intestine before the chyme reaches the large intestine. Functions of the large intestine include the absorption of water and electrolytes and the elimination of feces.

6. The body systems are used to address the basic needs of survival by sending signals differently to different body parts.

Answer:

Explanation:

Gregor Mendel used thousands of pea plants in his experiments to ensure that his results were accurate and reliable. By using a large sample size, he was able to reduce the effects of chance and random variation in his experiments. This is important because biological systems are complex and variable, and small sample sizes can lead to inaccurate or misleading results.

Mendel's experiments involved crossing pea plants with different traits (e.g., tall vs. short, yellow vs. green), and he counted the number of offspring with each trait. He found that the offspring followed predictable patterns of inheritance, which he summarized in his laws of inheritance.

If Mendel had used only twenty plants in his experiments, he may not have obtained the same results. With a small sample size, chance events can have a greater impact on the results. For example, if he crossed two pea plants with different traits and obtained only a few offspring, it's possible that chance events (such as mutations or environmental factors) could have influenced the results. This could lead to false conclusions about the inheritance of the traits.

Therefore, using a large sample size was critical to Mendel's success in developing his laws of inheritance. It allowed him to detect patterns that were consistent across many different crosses, and to demonstrate that these patterns were not the result of chance variation.

Let us assume that the genotype for curved horns is C (dominant) and spiral horns is c (recessive).

Finding the mare's genotype,

Parents: CC x cc

F1 Generation (Mare): Cc, Cc, Cc, Cc (After meiosis.)

It can be seen that all the 4 mares in the F1 generation are hybrid (heterozygous) with curved horns, since the recessive gene doesn't express itself because of the heterozygous genotypes.

Since all four offspring have a heterozygous genotype, proportion of the offspring having a heterozygous genotype = 4/4 = 100%.

Since none of the offspring have a homozygous genotype, proportion = 0/4  = 0%.

Proportion of the offspring that will have a curved horn phenotype = 4/4 = 100%

Proportion of the offspring that will have a spiral horn phenotype = 0/4 = 0%.

Hope this helps ya.