Is density useful in identifying unknown substances?
Answer:
Yes
Explanation:
You can identify an unknown substance by measuring its density and comparing your result to a list of known densities.
Density = mass/volume
When you divide the mass by the volume and compare the density to a list of known densities.
The movement of Earth’s tectonic plates generates tremendous force. Which force pulls on Earth’s crust, stretching the rock to make it thinner?
Answer:
Tension pulls earth's crust, stretching the rock to make it thinner, especially at the point halfway between the two pulling forces. Compression squeezes rocks until it bends or breaks.Compare the chromosomes in a skin cell to a muscle cel Include an explanation of how the two types of cells can be different
Answer:
Skin cells are the epidermal cells which all of the organs In the body by forming a tissue called skin
Explanation:
Muscle cells have many mitochondria which provide a lot of energy during contraction and relaxation of the cells.
4. Which layer of Earth is broken into the tectonic plates? This layer is made of the crust and the
uppermost part of the mantle.
During digestion, fructose is produced by the breakdown of larger molecules. Which type of molecule could be broken down to increase the body’s fructose levels?
11. One similarity between cell receptors and antibodies is that both?
1. Are specific in their actions because of shape
2. Are produced by nerve cells
3. Are involved in digestion
4. Slow the rates of chemical reactions
Answer:
joe
Explanation:
mumejejejejeejejejejejjejejeejhehehehe uh deiehhde0e irk e
All planets rotate counterclockwise except one. Which planet rotates clockwise?
Mars
Venus
Earth
Mercury
Answer:
venus is the only planet that relates opposite to the direction of all other planets
You are making a new breed of plants with all the traits you prefer the plant to have. Green leaves, Yellow flowers and Tall. What type of reproduction will you choose to make a new breed of plants.
Within a cave environment, bat waste products, called guano, are decomposed by organisms such as fungi and bacteria. These are then eaten by
creatures such as flatworms. Larger animals like salamanders eat flatworms. Which correctly represents the energy flow described?
A. Fungi - Bacteria - Salamanders - Guano
B. Bats - Guano - Flatworms - Salamanders
C. Salamanders - Fungi - Bacteria - Flatworms
D. Guano - Bacteria - Flatworms - Salamanders
Answer:
D
Explanation:
The correctly represents the energy flow described in the given case is - D. Guano - Bacteria - Flatworms - Salamanders
Energy flowEnergy flow is the movement of energy that is transferred from one trophic level to another trophic level but does not revert back. It is always unidirectional and it follows II nd law of thermodynamics.
In the given food chain, energy is transferred from waste products called guano by a bat which does not involve a bat directly, thus it starts from guano, and energy moves to bacteria and then flatworms and ultimately to the salamanders.
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Which of the following is a disadvantage for sexual reproduction?
A.
Offspring can be produced more quickly than by asexual means.
B.
Genetic diversity makes organisms respond differently to environmental changes.
C.
The offspring is genetically different.
D.
A lot of time and energy is required for making gametes and finding mates.
Answer: D. A lot of time and energy is required for making gametes and finding mates.
Explanation:
A disadvantage of sexual reproduction is that a lot of time and energy is required for making gametes and finding mates.
WHAT IS SEXUAL REPRODUCTION:
Sexual reproduction is a kind of reproduction that involves two organisms. Sexually reproducing organisms produce gametes or sex cells. One organism called the male contributes a gamete called SPERM while the female organism produces EGG. Sexual reproduction ensures that genetic diversity occurs in the offsprings produced as they are genetically different. However, a disadvantage is that it takes a lot of time and energy to make gametes and finding mates.Learn more: https://brainly.com/question/9775272?referrer=searchResults
If homeostasis is not maintained, what will most likely happen to the digestive system?
What affect do algae blooms have on ocean ecosystems?(1 point) increased underwater plant population decreased carbon dioxide in the water increased fish population decreased oxygen in the water
Algal blooms damage the ecology. Consequences range from feeding higher trophic levels to blocking sunlight, depleting oxygen, and secreting toxins into the water. Therefore, option (D) is correct.
What is algae blooms?Algal blooms are fast-growing algae. They dwell in freshwater or marine water systems, and their pigments stain the water. Algae are tiny and macroscopic aquatic photosynthetic organisms. As algal bloom is a fast-growing unicellular microalgae, Kelp forest is a common macroalgae.
When water lacks food, phytoplankton dies. When food is plentiful, plankton cells can develop many flagella and reproduce quickly, beyond the water's capacity to absorb them. As they develop, they settle and form 'red tides'
Algal blooms arise when fertilizer nutrients like nitrogen and phosphorus enter aquatic systems. They block sunlight, deplete oxygen in water, secrete harmful substances, etc. These detrimental consequences often deplete aquatic creatures.
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The top chambers of the heart are known as the...
A. valves
B.aorta
C.ventricles
D. Atria
Adapting to Life at Sea: Take a look at this article from Natural History Magazine. Explain the connection between sea snake's diet, the way in which they eliminate nitrogenous waste, and their need for freshwater. Then explain why this makes life (in at least one way) difficult for them in the ocean.
Answer:
They needs fresh water for drinking purpose.
Explanation:
The Sea snakes favorite food is fish and crustaceans. These sea snakes removes nitrogenous waste in the form of ammonia. They can live in salty water but needs fresh water for drinking purpose. This makes life difficult for sea snakes in the ocean because sea snakes needs fresh water to become hydrated and the sea water is salty which they can't drink so they depends on the rainfall for drinking purpose.
The sea snakes excrete their nitrogenous wastes via cloaca and some of it from the skin.
Sea snake
The snake excretes solid as well as liquid wastes from the cloaca but sometimes the flow of excreta gets disturbed due to change in the osmolarity between the environment and the body. The oceanic water is saline which is responsible for changing the osmolarity.This is making their survival difficult in the ocean.
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Brainliest will be involved for the correct answer
Which factor does not alter the rate of hydrolysis of maltose, a disaccharide?
A.temperature of the environment of the reaction
B.pH of the environment of the reaction
C.number of enzyme molecules present
D.size of the substrate molecule
The factor that does not alter the rate hydrolysis of maltose is the number of enzyme molecules present.
Enzymes are biological catalysts that promote various reactions in the body. Enzymes are specific in their action. Therefore, only an enzyme can catalyze a particular reaction. The enzymes work based on a lock and key model.
A disaccharide is composed of two mononosaccharide units. The factor that does not alter the rate hydrolysis of maltose is the number of enzyme molecules present.
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PLS HELP! 4. Explore: Another major contribution to atmospheric carbon dioxide is the cement industry.
Using the Gizmo, find a carbon atom path from the atmosphere to the cement
plant
. (Hint:
One of the ingredients in cement is limestone.)
How is carbon dioxide produced in a cement plant?
Question 1
1 pts
What would be the complementary strand for the following DNA Sequence?
CATGATAC
GTACTATG
GTACUAUC
UGCAUGAA
OTGCATGAA
Question 2
1 pts
Answer:
Explanation:
GTACTATG
C and G are opposites and T and A are opposites. (C's only connect with G's and vice versa)
Answer:
GTACTATG
Explanation:
A turns into T
C turns into G
T turns into A
G turns into C
Find the slope between (-4,5) and (1, -15). Reduce it
show work
Answer:
m = - 4
Explanation:
[tex]\frac{-15-5}{1+4}=\frac{-20}{5}=\boxed{-4}[/tex]
Hope this helps.
8. Fish have a bony structure called a
attached, supporting the gill structure.
to which the gill filaments are
Answer:
Each gill is supported by a gill arch – a bony structure that is oriented vertically on the side of a fish, just behind its head. The gill arch provides the support to hold a number of comb-like structures called gill filaments.
Please answer! I'll mark brainliest if it's correct!
Aleveoli are most similar to:
A) Large Balloons
B) Little Pouches
C) Little Bottles
D) Blood Vessels
Also, PLEASE include a brief description of why you chose that answer, thanks so much!
Answer:
little pouches
Explanation:
the aleveoli are like small balloons, but not large ones. they exchange oxygen and carbon dioxide molecules (so they contain small amounts of air like a SMALL balloon, or in this situation a small pouch).
how is the exact same mesosaurusfossils ended up on both the South American plate and the African plate?
Answer:
The fossils gradually drifted apart over a long period of time
Explanation:
Although a single human was not able to witness it since the earth's plates shift slowly, the fossils eventually seperated over the course of tens of millions of years.
What’s metabolism?? Help meh
Which three steps describe how an animal obtains and uses energy for growth?
First, an animal eats another organism. Then, food is built into larger molecules. Next, the animal's cells use
molecules to make new cells.
First, food is built into larger molecules. Then, the animal eats another organism. Next, the animal's cells use
molecules to make new cells.
O First, an animal eats another organism. Then, food is broken down into smaller molecules. Next, the animal's cells
use molecules to make new cells.
First, food is broken down into smaller molecules. Then, the animal eats another organism. Next, the animal's
cells use molecules to make new cells.
Use the process of elimination, be sure to read each answer thoroughly even if you are confused at first. Read each one at least twice just to see if your brain understands it the second time.
First, an animal eats another organism. Then, food is built into larger molecule. Next, the animal's cells use molecules to make new cells. ELIMINATED
First, food is built into larger molecules. Then, the animal eats another organism. Next, the animal's cells use molecules to make new cells use molecules to make new cells. ELIMINATED
First, an animal eats another organism. Then, food is broken down into smaller molecules. Next, the animal's cells use molecules to make new cells. THIS ONE!!!!!!!!!
First, food is broken down into smaller molecules. Then, the animal eats another organism. Next, the animal's cells use molecules to make new cells. ELMINATED
Use the process of elimination, be sure to read each answer thoroughly even if you are confused at first. Read each one at least twice just to see if your brain understands it the second time.
First, an animal eats another organism. Then, food is broken down into smaller molecules. Next, the animal's cells.First, food is broken down into smaller molecules. Then, the animal eats another organism. Next, the animal's cells use molecules to make new cells.First, food is built into larger molecules. Then, the animal eats another organism. Next, the animal's cells use molecules to make new cells.How does energy affect growth?The energy consumption has a high favourable correlation with economic growth. Whether economic growth takes primacy over energy consumption or energy consumption glorifies the economic growth have been studied in a number of studies yet practical proof is mixed and conflicting.
Thus, these are the steps.
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13. Which statement is true about the process of mitosis? *
A. The process occurs only in plants.
B. The process occurs only in animals.
C. The process occurs in every type of organism.
D. The process occurs only in multicellular organisms.
The statement 'the process occurs only in multicellular organisms' is TRUE about the process of mitosis (Option D).
Mitosis is a cell division by which a cell produces two genetically identical daughter cells.Conversely, meiosis produces four cells having half the genetic material.Mitosis produces somatic (body) cells in multicellular organisms, whereas meiosis produces germinal cells.In conclusion, the statement 'the process occurs only in multicellular organisms' is TRUE about the process of mitosis (Option D).
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The answer is 588m^2
Answer:
ok
Explanation:
Based on the energy flow between trophic levels in an energy pyramid how much energy would be expected to be found at the secondary consumer level in this pyramid
Answer:
100J of energy is transferred to the secondary consumers
Explanation:
According to the second law of thermodynamics, energy transfer from one trophic level to another is not usually a 100% transfer of energy. This is because the organisms at each trophic level use energy derived from food substances to carry out its activities.
Only about 10% of the energy obtained at each trophic level is transferred to the next trophic level.
This implies that only about 1000J of energy is transferred to the primary consumers and 100J of energy is transferred to the secondary consumers.
How do humans impact Earth?
Answer:
Humans impact earth in many different ways some good and some bad. some of these bad things are overpopulation , pollution, global warming, climate change and all these things affect and impact earth in a bad way.
Explanation:
Though humans also impact earth in a good way because humans clean lakes help clean the ocean protect endangered species and all these ways have a positive affect on earth
A group of your classmates want to see if fertilizer improves plant growth. They set up the following experiment: They planted three different types of plant seeds in three different types of soil. They placed all the planted seeds in either a dark or a light environment. Each plant was given the same amount of fertilizer. In a complete sentence, explain whether or not you think this is a good scientific design. What are two things that you could suggest for them to change in order to improve their experiment?
Answer:
Since they are trying to test if fertilizer helps, no sunlight, they should give the plants the same amount of light. They should also give the plants different amounts of fertilizer.
P.S. Can you give me Brainliest, please?
An organism that is convenient for the research on a particular topic is called( ) in biology
a: model organism
b: super organism
c: chosen organism
d: best organism
Answer:
A Model Organism
Explanation:
A model organism is a non-human species that is extensively studied to understand particular biological phenomena