just the top one plz and thxs
Answer:
Sorry I really just need points.
Explanation:
What taxonomic group do homo sapiens belong to
( **VERY URGENT**)
Answer:
Phylum: Chordata
Class: Mammalia
Order: Primates
Your answer is Mammalia : )
Explanation:
Hope this helps : )
In an electric motor, a force is applied to the electromagnet by
A. a battery
B. a commutator.
C. an electric current.
D. a permanent magnet.
An electric current
What is an electric current?
"Electric Current is the rate of flow of electrons in a conductor. The SI Unit of electric current is the Ampere".
What are electromagnets?
"An electromagnet is a type of magnet in which the magnetic field is produced by an electric current".
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When would you use a dry mount to view a specimen under a microscope? When would you use a wet mount?
Answer:
dry first wet last. i honestly dont know but good luck
When would you use a dry mount to view a specimen under a microscope?:
A dry mount is exactly as it sounds: the thing you plan to observe is placed on the slide with a cover slip over it. No water is needed. This kind of mount is usually used for inanimate objects or things that do not need water to live.
When would you use a wet mount?:
In a wet mount, the specimen is placed in a drop of water or other liquid held between the slide and the cover slip by surface tension. This method is commonly used, for example, to view microscopic organisms that grow in pond water or other liquid media, especially when studying their movement and behavior.
In pea plants, the allele for purple flowers is dominant over the allele for white flowers.
The flower color of one pea plant is represented by (PP).
What is the genotype?
What is the phenotype?
Answer:
genotype-PP phenotype purple
Explanation:
What is the mass of a 450 centimeter³ block of silicon if the density of silicon is 2.336 grams/centimeter³?
1. 193 g
2. 192.6 g
3. 1051 g
4. 1051.2 g
Warm ocean currents cause major weather events, impacting animals and their survival. Which two main spheres are involved?
Atmosphere and biosphere
Geosphere and biosphere
Hydrosphere and biosphere
Atmosphere and hydrosphere
Answer:
hydrosphere and biosphere
Explanation:
i am 96% sure i'm right
In pea plants, the allele for purple flowers is dominant over the allele for white flowers.
The flower color of one pea plant is represented by PP.
What is the genotype?
What is the phenotype?
Answer:
the genotype is PP
the phenotype is PURPLE
Explanation:
A metal body of mass 81 g occupies a volume of 30 cm3. Identify the metal.
Answer:
Aluminum
Explanation:
The density of Aluminum is 2.7 g/cm3
We know the volume and mass of the unknown metal, as density is mass/volume: 81g/30cm3 = 2.7 g/cm3 which is the density of Aluminum :)
Given parameters:
Mass of metal = 81g
Volume of metal = 30cm³
Unknown:
Identity of the metal = ?
To find the identity of the metal, we must derive an intrinsic property from the give parameters which we can use to identify it.
This property is density.
Density is mass per unit volume of a substance. Every earth material has a unique value of density.
Density = [tex]\frac{Mass}{Volume}[/tex]
If we find density, we look up a density table and identify the element.
Input the parameters and solve;
Density = [tex]\frac{81}{30}[/tex] = 2.7g/cm³
The metal with a density value of 2.7g/cm³ is aluminium.
How does something become a limiting factor?
before DNA was discovered, in which materials did scientists think the gentic material was stored? a. proteins b. carbohydrates, c. nucleic acids, d lipids
Why is pollen needed in plant reproduction?
fertilization takes place in the pollen
pollen contains the egg cell
pollen contains the sperm cell
egg cells stick to pollen
Answer:
The pollen contains the sperm cell.
Explanation:
When the pollen grain lands on the stigma and begins to grow a tube, the pollen tube grows down the style to the ovary. Each pollen grain contains a male reproductive cell known as the sperm cell. The sperm cell will go down the tube and unite with an egg cell in the ovary. When the egg cell and the sperm cell unite, fertilization occurs. This newly fertilized egg will make many new cells and will grow into a tiny plant embryo. The embryo is located in the ovule. The ovule is located inside the ovary. The ovule grows into a seed. The plant embryo usually remains in the seed until it is planted in the soil. The stigma, style, ovule, and ovary all make up the female part of the flower called the pistil.
Hope this helps!
Need help ASAP please!
In one paragraph, please justify the following argument: “Without the sun, I would be unable to move.” Discuss the processes of both photosynthesis and cellular respiration in your response, including the reactants and products of each.
It is true, without the sun we wouldn't be able to move because we need vitamin D and whatever. The sun is a very important thing, it makes people happy and warm. It also makes food for us. Without the sun, we'd all be dead. It's as simple as that. Sry if this is the totally wrong answer, I haven't seen the whole argument I don't believe.
-0229
A cell is placed in a beaker of solution. After the cell is placed into the beaker, students observe that it increases in size. Which statement best explains the process being modeled by the cell?
A. The processes needed for the cell to reproduce.
B. The processes needed for the cell to communicate with other cells.
C. The processes needed for the cell to take in nutrients.
D. The processes needed for the cell to move.
The survival of organisms is impacted by air temperature. Which two main spheres are involved?
Group of answer choices
Hydrosphere and biosphere
Geosphere and biosphere
Atmosphere and biosphere
Atmosphere and geosphere
Answer:
Hydrosphere and biosphere
Explanation:
Chemical weathering: changes rocks on a molecular level uses temperature changes to break rocks is always slower than physical weathering transports silt and rock to other places
Chemical weathering changes rocks on a molecular level uses temperature changes to break rocks is always slower than physical weathering transports silt and rock to other places - True
Chemical weathering, which can take place at the molecular level, is the disintegration and modification of rocks by chemical processes. Water exposure, exposure to gases in the atmosphere, and acid exposure are all potential causes of this form of weathering. These activities have the potential to alter the composition and structure of the rock over time by dissolving rock minerals.
Chemical weathering can be influenced by temperature variations because certain minerals can expand and contract in response to temperature fluctuations, which can cause cracking and expose new surfaces to chemical reactions. Chemical weathering is often slower than physical weathering, which includes the mechanical degradation of rocks via processes like abrasion or freezing and thawing. The kind of rock and the local climate, among other things, can affect the pace of weathering.
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Complete Question:
Chemical weathering: changes rocks on a molecular level uses temperature changes to break rocks is always slower than physical weathering transports silt and rock to other places - True/False?
Answer: Chemical weathering is a process that alters the composition and properties of rocks by breaking them down on a molecular level.
Explanation: This type of weathering typically occurs through the interaction of water and atmospheric gases with minerals in the rock. The chemical reaction that takes place can dissolve or alter the mineral structure, leading to changes in color, texture, and overall appearance.
Unlike physical weathering, which breaks down through mechanical forces like wind or water erosion, chemical weathering does not require any physical force to take place. However chemical weathering is slower than physical weathering, as the chemical reaction involve often occurs over a longer period of time.
As chemical weathering breaks down rocks, it can also transport silt and small rock particle to other locations, where they may settle and accumulate in new formations. This can contribute to the formation of soil and sedimentary rock over time.
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How is a branching tree diagram used? (20 points!!)
Answer: It is used to break down broad categories into finer and finer levels of detail. Developing the tree diagram helps you move your thinking step by step from generalities to specifics.
Explanation:
plzz hhheeeelllllpppp mee! Which great scientist laid the ground work for the scientific method we use today?
Question 2 options:
A)
Aristotle
B)
Galileo
C)
Newton
Answer: b
Explanation:
if thats wrong then its c, hope this helped
Which statement would be MOST important to include in a summary of the article? (A) Water erodes surface rocks through normal rainfall and severe storms. (B) Skeletons of marine organisms remain in the ocean to become part of the rock cycle. (C) Humans contribute to the rock cycle through actions that create artificial erosion of rock formations. (D) Erosion and deposition are usually gradual processes but can be observed through extreme weather events.
Answer:
In the summary you should probably put A because it makes the most sence for the topic.
Explanation:
PLZZ HELP!
the organism in the image is a free-living one that is anchored to the bottom of ponds and streams
what is the common name of the group to which this organism belongs?
A. CNIDARAINS
B. FLATWORMS
C. ANNELIDS
D. PORIFERA
The common name of the group to which the organism belongs to cnidarians.
Who are cnidarians?Cnidaria is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey.
Moreover, cnidarians have a unique feature: stinging cells called cnidocytes (NID-uh-sites). Each cnidocyte cell has a long, coiled, tubular harpoon-like structure.
Hence, the phylum Cnidaria is made up of four classes: Hydrozoa (hydrozoans); Scyphozoa (scyphozoans); Anthozoa (anthozoans); and Cubozoa (cubozoans).
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Which of the following best explains what would happen to animal cells if plant cells did not perform photosynthesis?
A. Animal cells would not be able to produce glucose through cellular respiration.
B. Animal cells would not be able to process energy from sunlight.
C. Animal cells would not be able to produce oxygen through cellular respiration.
D. Animal cells would not have the materials needed to produce energy in cellular respiration.
Answer:
D. Animal cells would not have the materials needed to produce energy in cellular respiration.
Explanation:
List three characteristics of Jovian planets.
huge compared to terrestrial planets; thick atmosphere; surface covered with frozen gasses and ice
no solid surface; thick, dense atmosphere; many moons
no solid surface; thick, dense atmosphere; few moons
cold, rocky surface; thick atmosphere; presence of rings
How did the lab activities help you answer the lesson question: How are relative and absolute dating methods used to determine the age of rocks and fossils? What did you learn from conducting this lab?
(NO SAMPLE ANSWERS!)
Answer:
Relative Dating with Fossils: Index Fossils as Indicators of Time
Explanation:
Answer:
thats cool
Explanation:
Which of the following choices is the best example of how the cell membrane and mitochondria might work together to make energy in a particular cell?
A. In animal cells, the mitochondria allows materials in and out of the cell, while the cell membrane uses nutrients to make energy (ATP) for the cell.
B. In a plant cell, the mitochondria allows materials in and out of the cell, while the cell wall makes food for the cell by photosynthesis.
C. In a plant cell, the cell wall allows materials in and out of the cell, while the mitochondria makes food for the cell by photosynthesis.
D. In animal cells, the cell membrane allows materials in and out of the cell, while the mitochondria uses nutrients to make energy (ATP) for the cell.
In animal cells, the cell membrane allows material in and out of the cell while the mitochondria use nutrients to make energy (ATP) for the cell. So the correct option is D.
What are mitochondria?
The cellular organelles known as mitochondria are responsible for releasing energy from meals. Cellular respiration is the term for this process. Because of this, mitochondria are frequently referred to as the cell's powerhouses. Numerous mitochondria can be seen in muscle cells and other cells with high energy requirements.
A sequence of chemical events takes place in the cytoplasm when breakdown products from food digestion enter the cell. This enables part of the energy trapped in these products to be released and integrated into ATP, the cell's primary source of energy (adenosine triphosphate).
Therefore, in an animal cell, the cell membrane allows material in and out of the cell while the mitochondria use nutrients to make energy (ATP) for the cell. So the correct option is D
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please Which two of the following sentences from the article include central ideas of the article?
1. Over long periods of time – millions and millions of years – all rocks play a part in Earth's
recycling system.
2. Magma that intrudes or pushes itself into layers and cracks of existing rocks underground
forms intrusive igneous rocks, like granite.
3. The only parts of the rock cycle that we can easily observe are the surface processes that
break down rocks, called erosion, and that build up rocks, called deposition.
4. There are many types of landslides, but they all involve large amounts of moving rocks.
(A) 1 and 3
(B) 1 and 4
(C) 2 and 3
(D) 2 and 4
Answer:
I'm not sure which article you're talking about, but I'll go with B: 1 & 4.
Explanation:
As I said, I'm not 100% percent sure. Hope this may be right.
plzzzzzzzzzzzzzzzzzzzzzzzzzzzz help me!!!!! p.s this due tonight!!!
What are some things you know the body needs to function? Explain your answer.own words
Answer:
the body needs food water air to survive.
Explanation:
Some geographers study human geographic characteristics in addition to physical geographic characteristics. Summarize three examples of human geographic characteristics that might be recorded by a geographer studying Africa.
Answer:It should be like the African people's culture/ things they put there. It is their interaction with their environment. Buildings, pottery, or traditional ceremonies.
Explanation:
How to find the group number and periodic number
Answer:
they are two different things man your going to have to give me more info .
Explanation:
hope this helps.
Answer:
The period of element relates the number of shells of an atom of the given element. The group is similar to the no of valence electrons of given element. Or just search " periodic card labeled" on Google and you can find it.
Are human cells more similar to plant cells or bacterial cells? Explain how you know.
Human cells are more similar to plant cells since they both contain a nucleus.
There are two types of cells namely eukaryotic cells and prokaryotic cells.Eukaryotic cells are cells that contain a nucleus while prokaryotic cells are cells that do not contain a nucleus.Human cells and plant cells are both eukaryotic cells since they both contain a nucleus, while bacterial cells are prokaryotic cells since they do not contain a nucleus.Thus, Human cells are more similar to plant cells since they both contain a nucleus.
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Images A and B below represent two different slide preparations of elodea leaves.
Elodea is a plant found in streams and ponds that normally contains 1% salt and 99% water.
Model A: Elodea leaf mounted in solution of 1% salt and 99% water
Model B: Elodea Leaf mounted in a Solution of 6% salt and 94% water.
Five minutes after the slides were prepared, a student using a compound light microscope to observe the cells in leaves A and B would most likely see which of the following?
A. Water moved into the cells of the leaf on slide A, causing the cells to swell.
B. Water moved out of the cells of the leaf on slide A, causing the cells to shrink.
C. Water moved out of the cells of the leaf on slide B, causing the cells to shrink.
D. Water moved into the cells of the leaf on slide B, causing the cells to swell.