use molecules in the air as a major source of carbon .
in glycolysis, for each molecule of glucose oxidized to pyruvate, ________.
Answer:
two molecules of ATP are used, and four molecules of ATP are produced
Explanation:
Hope this helps :)
how many species of finch are there in the galapagos?
Answer:
There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the islands only a few million years ago. How many of the species of finch eat insects? Fourteen finch species are found only on these islands.
Explanation:
centromeres divide and sister chromatids become full-fledged chromosomes during:
Answer:
Anaphase
Explanation:
Sister chromatids separate and daughter chromosomes migrate to opposite poles during anaphase.
7. LL (0)
What percentage of
offspring will have long
beaks?
Answer:
50%
Explanation:
50% should have long beaks and 50% should have short beaks If a long beak bird (Ll) mates with a short beak (ll), what percentage of the offspring should have short beaks? mitosis; asexual reproduction A cell copies and then divides into 2 identical daughter cells.
Why is the carbon cycle important to living things
The carbon cycle is important because it moves carbon (which is a life-sustaining element) from the atmosphere to organisms, and back again. Without it, Earth would be unhospitable.
helpppppppppppppppppp
Answer:
its osmosis
Explanation:
Active transport is the energy consuming process that involves the movt of molecules from their region of low concentration to a region of high concentration.
Diffusion is the net movt of molecules or ions from a region of their higher concentration to a region of their lower concentration.
Facilitated diffusion is the transport of molecules and ions across a membrane by specific transport proteins,carriers and channel proteins found within the membrane in the direction of lower concentration down a concentration gradient.
Osmosis is the net movement of water molecules from a region of their high concentration to the region of their lower concentration through a partially permeable membrane. OR this is the passive movement of water molecules across a partially permeable membrane from a region of lower solute concentration to a region of higher solute concentration.
Answer:
ayo its me imthetarget hows it going
Explanation:
Day 1 Values and beliefs
What is the difference between a value and a belief?
Answer:
Values are a culture's standard for discerning what is good and just in society. Values are deeply embedded and critical for transmitting and teaching a culture's beliefs. Beliefs are the tenets or convictions that people hold to be true
Select *ALL* the correct answers. I'll give brainlist if you can answer this correctly.
Scientists studied the evolution of horses. They concluded that horses evolved with the emergence of grasslands and an increase of predators. The digits of their early Eocene ancestor evolved into hooves. The diet changed from foliage to grasses. The molar teeth developed and became stronger. Which statements are supported by this evidence?
A) Molars became bigger to fit into the jaw structure of modern horses.
B) The molars of the horses underwent changes so they could chew meat.
C) The digits were modified to enable the horses to graze better on hard, rocky surfaces.
D) The emergence of grasslands over time led to the development of strong molar teeth in horses.
E) The digits of the horses’ feet underwent modifications, enabling them to run faster from predators.
No sé, ¿es D y E? No estoy 100% seguro
salamat sapoints you have any questions
___________ is the bacterium that fixes atmospheric nitrogen.
Answer:
Rhizobium Or Azotobacter
Explanation:
If you like my answer than please mark me brainliest thanks
Answer:
Rhizobium, is the bacterium that fixes atmospheric nitrogen. I hope this helps you somewhat! :D
The formula for the volume V of a cylinder is V = πr2h where r is the radius of the base and h is the height of the cylinder. Solve the formula for h. Then find the height of a cylinder with a volume of 36πcm3 and a base with a radius of 3 cm. Please help me its due today
Answer:
h = 4 cm
Explanation:
First, we solve for h.
h=[tex]\frac{V}{pi*r^2}[/tex]
h = unknown
v = 36*pi
r = 3 so r^2 = 9
[tex]\frac{36*pi}{pi*9} = 36/9 = 4[/tex]
which system helps regulate body temperature and water loss?
Answer: The integumentary system consists of the skin, hair, nails, glands, and nerves. Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.
i need help with this
what sudden illness is usually caused by a blockage of blood flow to the brain?
identify the landmark found on the proximal end of the humerus.
Answer:
greater tubercle
Explanation:
The negative membrane potential in a resting neuron is primarily due to :___________
a. high levels of chloride ions in the cell. diffusion of potassium out of the cell.
b. a higher permeability of the membrane for potassium compared to sodium.
c. both diffusion of potassium out of the cell and a higher permeability of the membrane for potassium compared to sodium are correct.
Answer:
c
Explanation:
When the membrane of the neuron is in a state of rest, the interior of the cell has a more negative charge in relation to the exterior, therefore option "c" is correct.
What is the membrane potential in a resting neuron?It is a phenomenon that occurs when the nerve cell membrane is not altered by action potentials.
Characteristics of a resting neuronThe resting potential is determined by the concentration gradients of the ions, both inside and outside the neuron, and by the permeability of the membrane.When a cell is at rest, the potassium channels are open, the potassium will tend to flow outwards (K ions), they are positive charges, therefore the cell interior will be negative with respect to the cell exterior.Therefore, we can conclude that the resting potential of a membrane occurs when they are not transmitting signals.
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Describe four assump-tions traditionally made in economics that canhave a negative effect on the environment.
Answer:
The four types of economic assumptions that can negatively affect the environment are:
1. Natural resources and human resources are infinite
2. It grants an event in the future less value than one in the present; short-term costs and benefits are granted more importance than long-term costs and benefits.
3. All costs and benefits associated with an exchange of goods or services are borne by individuals engaging directly in the transaction (buyer and seller alone).
4. Economic growth is required to keep employment high and maintain social order.
Organelles that are surrounded by two membranes and contain DNA are the
a nucleus, the endoplasmic reticulum, and lysosomes.
b. nucleus, the endoplasmic reticulum, and chloroplasts.
c. nucleus and mitochondria.
d. endoplasmic reticulum and the Golgi apparatus.
Answer:
C
Explanation:
The nucleus contains most of the dna and the mitochondria contains a small amount
Mitochondria and nucleus are organelles that are surrounded by two membranes and contain DNA. Therefore, option (C) is correct.
What are cell organelles ?
Cell organelles are specialized structures who's function is to perform various jobs inside the cell. These can be found in either prokaryotic or eukaryotic cells.
Eukaryotes are two membrane bound structure i.e. have cell wall and cell membrane. They contain organelles who are also double membraned in nature for e.g. mitochondria and nucleus.
Apart from these mitochondria and nucleus can undergo DNA replication independently due to presence of DNA . Mitochondria generate most of the chemical energy required to power the cell's biochemical reactions. And nucleus contain genetic information along with instructions required for cellular processes.
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Did the enzymes from Claire’s small intestine breaks down the protein at a low, normal or high rate?
Answer: low rate
Explanation:
Claire is a Great Dane who was losing weight despite the fact that she is eating. Claire doesn't have an increase in appetite and also doesn't have enough energy that is required for her to play.
Claire is losing weight because food the enzymes in her body doesn't break down the food that she eats. When compared to a dog that was healthy, the enzymes from Claire's small intestine broke down protein at a low rate.:
Help!!!!
AP Science Practice Question
A particular enzyme has an optimal temperature of 37°C and begins to denature at 45°C. During
denaturation, entropy increases (the protein loses much of its organization). The protein also
increases its energy content (energy must be absorbed from the surroundings to break the
numerous weak bonds that reinforce the native conformation). Thus, for denaturation, AS and
AH are both positive. Using the free-energy equation (AG = AH - TAS), explain why
denaturation becomes spontaneous at a certain temperature.
Denaturation becomes spontaneous at a particular temperature when TΔS > ΔH therefore ΔG becomes negative.
An enzyme is a biological catalyst that promotes various reactions in the body. Enzymes are proteins. There is an optimum temperature within which proteins functions effectively. Beyond this limit, the ability of the protein to function effectively is greatly hampered.
The free energy equation is ΔG = ΔH - TΔS. Since the energy absorbed increases, the entropy increases and the temperature increases, it follows that a point comes when TΔS > ΔH therefore ΔG becomes negative and denaturation becomes spontaneous at a certain temperature.
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Which is abiotic ? ????
Answer:
Abiotic is something that is not alive
Explanation:
Abiotic is non-living
Biotic is a living organism
The human population can maintain an exponential growth rate indefinitely because humans are exempt from population crashes.
True
False
Answer:
Most likely false
Explanation:
Humans aren't exempt from population crashes, if we spent up our recourses, started wars, etc. It HAS happened before, so most likely false.
Somebody help me please
It A i think dont report me but from my caculations its DNA
most land-dwelling invertebrates and all of the amphibians ________.
Answer:
All amphibians and most land-dwelling invertebrates are ectotherms
Explanation:
All amphibians and most land-dwelling invertebrates are ectotherms whose internal temperatures vary with environmental conditions. This means their energy requirements are lower than those of mammals and birds.
the pigment-producing cells of the epidermis are located in which layer?
Answer:
Basal Layer
Explanation:
Melanocytes are found in the basal layer of the epidermis. These cells produce a pigment called melanin, which is responsible for different skin color. Melanin is packaged into small parcels (or melanosomes), which are then transferred to keratinocytes.
What is a fatty acid
Answer:
it's a carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group, especially any of those occurring as esters in fats and oils.
Explanation:
Answer:
a carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group, especially any of those occurring as esters in fats and oils.
Explanation:
1. How is it possible for a phospholipid to be hydrophilic and hydrophobic? (2)
1
what are the three molecular components of cellular membranes?
Answer:
Lipids (50%)
Proteins (50%)
Carbohydrate portions of glycolipids and glycoproteins (10%)
Explanation:
Hope this helps :)
There are basically three major classes of membrane lipid molecules, which are: phospholipids, cholesterol, and glycolipids.
What is cellular membrane?The cell membrane, also known as the plasma membrane, is found in all cells and serves to separate the cell's interior from the outside environment.
The cell membrane is made up of a semipermeable lipid bilayer. The cell membrane controls the transport of materials into and out of the cell.
Lipids (phospholipids and cholesterol), proteins, and carbohydrate groups attached to some of the lipids and proteins are the primary components of the plasma membrane.
Membrane lipid molecules are classified into three types: phospholipids, cholesterol, and glycolipids.
Glycerol is a three-carbon molecule that serves as the membrane lipids' backbone.
Thus, these are the three molecular components of cell membranes.
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Which of the following is hypothesis
A. If plant receives more water, then it will grow taller
B. What happens if a plant receives a lot of water?
C. Plants need water to grow.
Answer:
it's A
Explanation:
it's explaining your idea.
Answer:
B The answer is b because it's a question
Arrhythmia can cause the heart to beat in which of the following ways?
*d. all of the above
Answer:
d
Explanation:
those who operate fisheries need to be concerned about all the following except
A. Disease
B. Nutrition
C. Water Quality
D. Natural Predators
Answer:
D. Natural Predators.