Answer:
Disease can be density-dependent because organisms have to live close enough to one another for the disease to spread.
The cell membrane controls movement of materials into and out of the cell. The following particles are moving from high concentration to low concentration and are using a carrier protein. How would you describe this type of movement across the membrane?
A. simple osmosis
B. active transport
C. simple diffusion
D. facilitated diffusion and please give a reason why you chose this answer
Answer:
B. active transport
Explanation:
Answer:
b
Explanation:
because active transport obey the concentration gradient..
True or false - DNA and RNA store heredity to make proteins?
in my own opinion I think it's false ..,
What can be found in prokaryotic cells?
Select all that apply.
A. DNA
B. nucleus
C. ribosomes
D. plasmids
I think all of the above but I am not quite sure... this question popped up on my unit test and I wanted to ask to make sure.
Answer:
ribosomes and DNA i never heard of the last one
Explanation:
edgeunity 2020 unit test
All volcanoes have at least one vent, or opening. Which of the following does not erupt through volcanic vents?
A. lava
B. liquid water
C. gases
D. ashes
4 How many genetically different kinds of gametes an individual with genotype Aabb can
produce?
a)1
b)2
c) 4
d) 8
Answer:
I believe the answer is C.) 4
The light dependent reaction requires energy from the sun. What other reactant does this reaction require
11. Coughing can expel ____ from the body.
A. mucus
B. food particles
C. phlegm
D. All of the above
Answer:
D. All of the above
Why do you think the sugar beets are harvested in the Fall?
Answer:
Harvest deliveries are limited and controlled due to the warm weather and poor storage conditions.
Explanation:
Given the diagram below, which of the following ordered pairs represents the
vertex, A?
O A. (b cosc, b sinC)
O B. (b cos C, c sinc)
O C. (a cosB, a sinB)
O D. (a cosc, b sinC)
Answer:c
Explanation:because cosin of b is c
(a cosc, b sinC) pairs represents the vertex A in this diagram. Hence option D is correct.
What is Vertex ?In geometry, a vertex (in plural form: vertices or vertexes) is a point where two or more curves, lines, or edges meet. As a consequence of this definition, the point where two lines meet to form an angle and the corners of polygons and polyhedral are vertices.
The vertex of an angle is the point where two rays begin or meet, where two line segments join or meet, where two lines intersect (cross), or any appropriate combination of rays, segments, and lines that result in two straight sides meeting at one place.
In a polygon, a vertex is called "convex" if the internal angle of the polygon is less than π radians otherwise, it is called concave.
Hence option D is correct.
To know more about Vertex :
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A specific type of cell is being studied by a scientist. She notices the cell contains a nucleus, lysosomes, a cell membrane and cell wall. What is the correct classification of this cell?
A prokaryotic animal cell
B. A prokaryotic plant cell
C. A eukaryotic animal cell
D. A eukaryotic plant cell
also can you say a reason why it's that answer
Answer:
A eukaryotic plant cell
Explanation:
This is the answer because eukaryotic plant cell have nuclei which means more than one nucleus.
During the process of meiosis, chromosomes are divided evenly, so that the sex cell receives ONE chromosome from each homologous set. What are these sex cells called?
Answer:
Mitosis, Meiosis, and Inheritance
What affects an ecosystem more, the abiotic factors that make it up, or the communities living in to?
Answer:
Species, A group of similar organisms that can mate and produce fertile offspring ... Community, All the populations of all the different species that live together in a particular area ... Ecosystems are influenced by both biotic and abiotic factors. ... not abiotic. Some people think that if an organism is no longer alive,
Explanation:
I hope this kinda helps.
Convection currents are powered by:
A. Heat
B. Motion
C. Pressure
D. Density
If you’re gonna guess, do not bother commenting
7th grade Science *Earth
I WILL GIVE BRAINLIEST1
Social classes is a characteristic of civilization that refers to
groups of people ranked by their place in society
people who come together to learn a trade
men and women who enjoy spending time together
citizens who vote in a similar way
Answer:
the answer is B
Explanation:
Sorry about those idiots from the other question
Describe how chimpanzees use touch to communicate.
No searching please. I already tried that and it wasn’t the answer you need for the question.
Give brainliest!
In Units 4A and 4B, we have learned about photosynthesis and cellular respiration. Which of the following statements is true?
a. The reactants of photosynthesis are the reactants of cellular respiration.
b. Photosynthesis produces light energy while cellular respiration produces chemical energy.
c. The products of photosynthesis are the reactants of cellular respiration.
d. Photosynthesis and cellular respiration use light energy to convert to chemical energy.
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
the lowest layer odnbf
Answer: ;-; wut? i- my brain cells you just killed my brain cells in 1 sec i-
Explanation:
Gestational diabetes occurs when a pregnant woman has high levels of blood sugar. Cells in the pancreas usually keep blood sugar levels normal, but hormones produced during pregnancy deactivate the cells. After pregnancy, hormone levels return to normal, and so do the pancreas cells. Is this an example of DNA or the environment controlling gene expression? Explain your answer
Answer:
environment controlling gene expression
Explanation:
Gestational diabetes generally occurs in pregnant women. The sugar level in the bloodstream becomes little high than the normal range during pregnancy. But the glucose level returns to normal after child birth.
The pancreas secrets insulin which helps to lower the blood sugar level in the body. But during pregnancy, the placenta releases some of the hormones which dilutes the effect of insulin. This is known as insulin resistance. So now the pancreas secretes more of insulin to overcome this insulin resistance for the body. Now if a woman during pregnancy does secrete more insulin, the glucose level increases in the body and the woman develops gestational diabetes.
Gestational diabetes greatly depends upon obesity and the ethnicity of the women, but a definite genetic link has not been identified.
This it is a result of the environment control gene expression.
Muscles have a bunch of nuclei because they need to use the DNA in the nuclei to make the large number of proteins that they must contain, so that they can relax and contract. What other organelle might muscles need a larger than normal number of?
Centrioles, so that muscle cells can retain a rigid structure during times of heavy stress (for example: lifting a heavy weight).
Mitochondria, so that muscle cells can quickly respond to the need to relax and contract.
Vesicles, so that muscle cells can ensure water availability if there is unusually low availability of water.
Answer:
it's the Mitochondria
Explanation:
The other organelle that might muscle needs a larger than normal number of is mitochondria, so that muscle cells can quickly respond to the need to relax and contract. The correct option is b.
What are mitochondria?Mitochondria is a cell organelle that is present in both plant and animal cells. It is not present in prokaryotic cells, as prokaryotic cells do not contain cell organelles. Besides storing ATP, it also generates energy that is generated from glucose.
Muscle cells have mitochondria to accommodate this energy demand. These organelles, often known as the “power plants” of the cell, transform nutrients into the molecule ATP, which serves as a form of energy storage.
Therefore, the correct option is b. Mitochondria, so that muscle cells can quickly respond to the need to relax and contract.
To learn more about mitochondria, refer to the link:
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Can someone explain question 4?
Which of the following is a possible function of a protein
Answer: The nucleus.
Explanation:
Answer: The function of a protein is an Actin.
Explanation: These proteins provide structure and support for cells. On a larger scale, they also allow the body to move.
.pls help fast
Is the fossil record complete for humpback whales? Explain your answer.
Answer:
No, the fossil record is not complete because with further fossil discoveries, and more study, it may continue to tell paleontologists how modern whales came to behave the way they do.
Explanation:
Theres multiple slides! WILL GIVE BRAINLIEST. Please help, science isnt my strong suit. This will bring my grade up i cant fail science, please. There wasn't science so i picked biology.
Explanation:
11. C
12.B
13.B
14.B
15.C?
16.D
17.A?
18.D
An apple farmer notices that two of his trees produce particularly sweet apples. The farmer thinks that these sweeter apples would sell very well andcould make him a lot of money. He uses a Q-tip to pollinate the flowers of the sweet apple tree with pollen from the other sweet apple tree's flowers. He then takes the seeds from the fruit that they produce and grows a new field of trees from them. Almost all of these new trees make very sweet apples like the first two trees did.
Answer:
It is a right method for making a variety.
Explanation:
This is the right method for making sweet apples variety because in apple, cross pollination occurs and for making a new variety self pollination is the best way to prevent impurities in making a new variety. Due to self pollination, the farmer gain the sweet apple variety which help them to make more money by selling these sweet apple because of its demand.
How do most bacteria get food?
Answer:
Foodborne illness/contamination
Explanation:
Most dairy and meat products are at risk for having salmonella, this is why you must cook
it so you can kill the bacteria. These foods can contaminate fresh veggies that you don't cook which can cause you to get sick.
is an organism that uses the energy from the sun or inorganic substances to make its own food; it is also called a producer. is an organism that takes in or consumes other organisms to receive energy; it is also called a consumer.
Answer:
An autotroph
is an organism that uses the energy from the sun or inorganic substances to make its own food; it is also called a producer.
A heterotroph
is an organism that takes in or consumes other organisms to receive energy; it is also called a consumer.
Explanation:
An autotroph is an organism that uses the energy from the sun or inorganic substances to make its own food; it is also called a producer. A heterotroph is an organism that takes in or consumes other organisms to receive energy; it is also called a consumer.
What are autotrophs and heterotrophs?An autotroph can be referred to as an organism which uses the energy from the Sun or inorganic substances present in the environment to make its own food. These organisms are also called as producers. These organisms produce their own food through the process of photosynthesis.
Heterotrophs are the organisms which takes in or which consumes other organisms for receiving energy or as the food source. These organisms are also called as consumers. Consumers are further divided into different types on the basis of their food such as carnivores, omnivores, etc.
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which energy conversion takes place in some plant cells, but never in animal cells?
When the water availability of a plant's environment decreases, the plant can respond by closing its stomata. This reduces the amount of water that the plant loses through its leaves due to transpiration. Closing the stomata also reduces the amount of carbon dioxide that the plant can take in through its leaves, which will most likely result in A. a decreased rate of photosynthesis. B. no change in the cellular processes of the plant. C. an increased rate of photosynthesis. D. an increased rate of cellular respiration.
Answer:
A. a decreased rate of photosynthesis.
Explanation:
Stomata is a structure in the leaves of higher plants, which they use majorly for the purpose of gas exchange. However, the process whereby plant loses water called transpiration also occurs via the stomata. In a situation whereby the availability of water in a plant's environment is low, the plant responds by closing its stomata in order to conserve water (reduce the amount of water that the plant loses through its leaves due to transpiration).
Closing the stomata by plants means not allowing ample carbon dioxide (CO2), which is needed for the process of photosynthesis to occur, to enter the plant. This will most likely result in a DECREASED RATE OF PHOTOSYNTHESIS.
what is the difference between habitats and niche?
Answer:
The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives
Answer:
The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives:)
Do any of you guys know what tectonic plate and fault caused the 2001 Seattle earthquake?
Answer:
The Puget Sound area is prone to deep earthquakes due to the Juan de Fuca tectonic plate's subduction under the North American Plate at 3.5 to 4.5 cm a year as part of the Cascadia subduction zone
Explanation:
Hope dis help
Answer:
North American plate and the San Juan de Fuca plate,
Explanation:
i hope this helps