Answer:
During the waning phase of the Moon, less of the Moon's near side is lít each night
Explanation:
Phases of the moon are different ways the moon appear on the Earth. As moon orbit the Earth, half of the moon that faces the Earth will be lit up. There are different phases of moon which are full moon, quarter moon, waning crescent moon, waning gibbous moon, e.t.c.
A waxing crescent moon is when the moon look like crescent and it increases in size.
A waning gibbous moon occurs when more than half of the lit portion of the Moon can be seen and the shape reduce in size . It occur between the full and quarter moon.
Answer:
Explanation:
The night sky with a small sliver of the left side of the moon visible.
In this photo, this phase of the moon is called
.
The next phase will be
.
About 27 days from now the phase will be
.
which is it ????
is it actually rare to step on an ant? this sounds dumb but I’m curious.
Answer: No
Explanation:
i mean it depends if you live near an ant colony or colonies.
Select all that apply. Which of the following are vertebrates? earthworms grasshopper lancelets octopus crab amphibians tunicates starfish
Answer: amphibians
Explanation:
earthworms, grasshopper, lancelets, octopus, crab, tunicates, starfish are all invertebrates.
lancelets(cephalochordata) and tunicates(urochordata) are chordates but do not have a backbone.
Hii!! The correct answer is amphibians. (:
Albino is a rare recessive genetic disease. Sally and her parents are normal but her sister is albino. It seems that Sally has chance to carry the albino allele. If she marries a normal person with no family history of albinos, what is the chance for Sally's first baby to be a carrier of the recessive allele?
Answer:
2/3 ×2/3× 1/4
Explanation:
Albino is a rare recessive genetic disorder which is characterized by low production of melanin or no melanin production. It is an inheritable disorder can be pass from generation to generation. Since the parent of Sally has no Albino and Sally sisters has, it means there is an history of Albino in the family that make her sister to have. She has 2/ 3 chance of having and the possibility that her first child will have is 1/4 meaning 25% because her hubby has no Albino history in their family.
Why are scientists concerned about the use of the Bt toxin, which is used to kill insects, in genetic engineering?
It’s because they might not want insects to die.
They might need them for some work
E.g
Bees are used to make honey
1. Which of the following best identifies base 1?
-
Cytosine
Purine
Pyrimidine
Nucleotide
Answer:
Purine
Explanation:
A base is part of a nucleotide so that eliminates choice D. Pyrimidine and Cytosine only have 1 base, Purine is the only one with two, therefore Purine is the answer.
Explain the plasma membrane in easy way.
Answer:
The cell membrane (also known as the plasma membrane (PM) or cytoplasmic membrane, and historically referred to as the plasmalemma) is a biological membrane that separates the interior of all cells from the outside environment (the extracellular space) which protects the cell from its environment.[1][2] The cell membrane consists of a lipid bilayer, including cholesterols (a lipid component) that sit between phospholipids to maintain their fluidity at various temperatures. The membrane also contains membrane proteins, including integral proteins that go across the membrane serving as membrane transporters, and peripheral proteins that loosely attach to the outer (peripheral) side of the cell membrane, acting as enzymes shaping the cell.[3] The cell membrane controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.[4] In addition, cell membranes are involved in a variety of cellular processes such as cell adhesion, ion conductivity and cell signalling and serve as the attachment surface for several extracellular structures, including the cell wall, the carbohydrate layer called the glycocalyx, and the intracellular network of protein fibers called the cytoskeleton. In the field of synthetic biology, cell membranes can be artificially reassembled.[
Explanation:
Which of these statements are accurate? Hexokinase is a type of transferase that catalyzes the transfer of a phosphoryl group from ATP to a hexose. Hexokinase transfers the terminal phosphate of ATP to carbon 3 of glucose. The conformational shift that occurs when glucose, but not water, enters the active site prevents water from hydrolyzing ATP. Hexokinase consists of two domains, or lobes, that come together when glucose and the MgATP2–MgATP2– complex are bound. Most kinases require the presence of a monovalent metal ion cofactor to prevent ATP hydrolysis. Hexokinase is found in the mitochondrial membrane.
Answer:
A. The conformational shift that occurs when glucose, but not water, enters the active site prevents water from hydrolyzing ATP. True
B. Hexokinase consists of two domains, or lobes, that come together when glucose and the MgATP2–MgATP2– complex are bound. True
C. Hexokinase is a type of transferase that catalyzes the transfer of a phosphoryl group from ATP to a hexose. True
Explanation:
A. Hexokinase suffers and conformational changes by binding glucose in a reaction that prevents ATP hydrolysis.
B. Hexokinase is an enzyme with two domains that function by binding to the substrate (i.e., glucose). The region linking both protein domains is responsible for the catalytic activity.
C. Hexokinase is a type of transferase that catalyzes the transfer of a phosphoryl group from ATP to a hexose. During the first stage of glycolysis, the hexokinase transfers one phosphorous group from magnesium-ATP (Mg-ATP) to one hexose molecule, such as fructose, mannose or glucose.
False statements:
- Most kinases require the presence of a monovalent metal ion cofactor to prevent ATP hydrolysis. False: In canonical kinases, conserved amino acids bind to divalent metal ions before the transference of the phosphate group to their substrates.
- Hexokinase is found in the mitochondrial membrane. False: Hexokinase is found in the cytosol.
- Hexokinase transfers the terminal phosphate of ATP to carbon 3 of glucose. False: Hexokinase catalyzes the transfer of the terminal phosphate ATP to form glucose 6-phosphate.
This solid layer is found between the inner mantle (mesosphere) and the lithosphere.
O A. crust
B. asthenosphere
C. inner core
O D. outer core
Answer:
The layer below the rigid lithosphere is a zone of asphalt-like consistancy called the Asthenosphere . The asthenosphere is the part of the mantle that flows and moves the plates of the Earth.
Explanation:
a particular gene can have two forms, called alleles. which statement best describes the difference between the dominant allele and the recessive allele?
(a)only the recessive allele is expressed when both alleles ate inherited.
(b)the recessive allele can be expressed only if it moves to a different chromosome.
(c)only the dominant allele is expressed when both alleles are inherited.
(d)the dominant allele can be expressed only if two homologous chromosomes have it.
Answer:
The answer is D I'm pretty sure
The immediate pressure of necessity has brightened their
intellects, enlarged their powers, and hardened their
hearts. And looking across space with instruments, and
intelligences such as we have scarcely dreamed of, they
see, at its nearest distance only 35,000,000 of miles
sunward of them, a morning star of hope, our own warmer
planet, green with vegetation and grey with water, with a
cloudy atmosphere eloquent of fertility, with glimpses
through its drifting cloud wisps of broad stretches of
populous country and narrow, navy-crowded seas,
-H. G. Wells, The War of the Worlds, 1898
What can you infer about the narrator from this passage of The War of the
Worlds?
O A. He is smart and educated.
O B. He doesn't care about Earth.
C. He believes in God.
O D. He is afraid of the Martians.
Answer: D- he’s smart and educated
Explanation:
Which eras ended with a mass extinction?
O A. Paleozoic and Precambrian
O B. Mesozoic and Paleozoic
OC. Mesozoic and Cenozoic
O D. Cenozoic and Paleozoic
B. Mesozoic and Paleozoic eras ended with mass extinctions.
What is Mass extinctions?Mass extinctions are periods in Earth's history when a significant proportion of the planet's biodiversity is wiped out in a relatively short period of time.
These events have occurred several times throughout Earth's history, and they are typically associated with major geological and environmental changes.
The Mesozoic era, which lasted from about 252 to 66 million years ago, ended with the Cretaceous-Paleogene extinction event. This event was likely caused by the impact of a large asteroid or comet, which triggered a range of environmental changes, including wildfires, acid rain, and a nuclear winter-like effect.
The event is most famous for wiping out the dinosaurs, but it also resulted in the extinction of many other species, both on land and in the oceans.
The Mesozoic era ended with the Cretaceous-Paleogene extinction event, which wiped out the dinosaurs and many other species.
The Paleozoic era ended with the Permian-Triassic extinction event, which was the largest mass extinction in Earth's history, and resulted in the loss of approximately 96% of all marine species and 70% of land species.
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Which one ?!!!?!?!?!?!?
Answer:B
Explanation: Mosses are small and usually spreads on the ground like mats thereby avoid direct exposure to sunlight. Palm tree on the other are large and usually grow very tall, hence are expose to maximum sunlight
2. Mr. Simpson has blood type ABRh+ and his wife type ORh+. Mr. Doodle has type ARh- and his wife type ORh+. The Simpsons and Doodles each had a baby girl on the same day. When they took their children home, their doctors found that the Doodle girl had blood type ARh- and the Simpson girl had type ORh+. The Simpsons sued the hospital for giving them the wrong baby. Could they win the case? Show the most likely genotypes of the parents and of the 2 girls
Which characteristic proves Lactobacillus acidophilus is from the specific kingdom Eubacteria?
Answer: It has peptidoglycan
Explanation:
The kingdom Eubacteria is the domain of prokaryotic bacteria. These are unicellular and prokaryotic organisms. Their cell membrane is made up of lipids. The cell wall is made up of peptiodoglycan which gives rigidity to the cell wall. It gives the structural strength to the bacterial cell wall, gives the strength to the bacteria, and it will counteract the osmotic pressure develop in the cytoplasm.
Lactobacillus acidophilus possess the peptidoglycan in the cell wall this establishes its relationship with kingdom Eubacteria.
What tipe of cactus is this?
Answer:
Hey!
I think it is the San Pedro Cactus!
Explanation:
i have one at home just like that!
HOPE THIS HELPS!!
Answer:
san pedro
Explanation:
Scenario: You are a research scientist and are working with eukaryotic cells obtained from a newly discovered organism, Oviductus oblatus. You want to determine if this organism’s cells are similar in structure an organization to other eukaryotic cells. You collect the cells and examine them using a light microscope and a cell stain in an attempt to see the internal cellular structures. Lo and behold you are happy because you are able to see particular structures using this method. You find the following features: Organism’s cell are able to move Internal structures appears to be made of protein fibers Internal structures protein fibers measured 7.0 nanometers diameter Internal structures protein fiber appears to be two strands intertwined with each others Based on this information you come to the conclusion that you have been able to identify in these cells the structure of ____. You conclude the cells of Oviductus oblatus are indeed (name the main type of cell it appears to be) ______ cells. Discussion: Post your answers for the above scenario and include evidence that supports your choice
Answer:
Based on this information you come to the conclusion that you have been able to identify in these cells the structure of microfilaments or actin filaments. Oviductus oblatus are indeed eukaryotic cellsExplanation:
In eukaryotic cells, the cytoskeleton is composed of three well defined filamentous structures: microtubules, microfilaments, and intermediate filaments. Each of these filamentous structures is a polymer of proteinic subunits united by weak, not covalent connections.
The microfilaments are the thinnest of the three structures. They have a diameter of 7 nanometers and are composed of many proteinic monomers united. This monomeric protein is called actin. Many monomers get combined to form a structure that assembles a double helix.
Due to the fact that these microfilaments are made of actin monomers, they are also known as actin filaments.
Actin filaments have directionality which means that their extremes have different structures.
In eukaryotic cells, genes that codify for actin microfilaments are highly conserved in all organisms, which is why they are often used as molecular markers for different studies.
2.Black fur(B) in guinea pigs is dominant over white fur(b). Find theprobability of an offspring with the same phenotype as its parents in across between a homozygous black and a heterozygous black guineapig
.A. 0%,
25%B.25%,
25%C.50%,50%
D.75%, 25%
E.100%, 0%
Answer:
Option d: black 75%, white 25%
Explanation:
The cross is between a homozygous black and a heterozygous black guinea pig
Parents gen. BB x Bb
F1 generation BB Bb Bb bb
The probability of an offspring with the same phenotype as its parents is
Genotype: BB - 25% and Bb - 50%, bb-25%
Phenotype: black 75%, white 25%
what is evaporation
Answer:
Evaporation is the process of turning liquid to vapor form.
what causes water to enter plant roots from the soil?
a. water concentration in root hairs and the soil are equal.
b.water concentration in root hairs and the xylem are equal.
c.water concentration in root hairs is higher than in the soil
d.water concentration in root hairs is lower than in the soil
Answer:
D
Explanation:
The cell sap is hypertonic to the soil therefore an osmotic gradient is formed and the roots therefore intake water
What causes water to enter plant roots from the soil is mainly because the concentration of water in the root hairs is lower than in the soil. The correct option would be D.
Water moves from the soil into the root by osmosis.Osmosis is the movement of water molecules from the region of high water potential or concentration to the region of low water potential or concentration.Hence, water will enters the plant roots from the soil because the water potential in the soil is more than that of the root airs.
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In the lab, metabolic poisons can be used to study ATP synthesis and oxygen consumption. Many of these poisons have – or have had – other uses, from diet aids to animal poisons to antibiotics. Poison Action oligomycin binds to F0F0 and blocks the proton channel cyanide inhibits cytochrome oxidase by reacting with heme a3 trifluorocarbonylcyanide phenylhydrazone (FCCP)(FCCP) increases membrane proton permeability rotenone blocks electron transfer at NADHNADH dehydrogenase (NAD−Q(NAD−Q oxidoreductase) bongkrekic acid binds to inward‑facing site of ATP‑ADP translocase Classify the metabolic poisons as electron transport inhibitors, uncoupling agents, ATP synthase inhibitors, or transport inhibitors.
Answer:
Electron transport inhibitors: Cyanide, Rotenone
Uncoupling agents: trifluorocarbonylcyanide phenylhydrazone (FCCP)(FCCP)
ATP synthase inhibitors: Oligomycin
Transport inhibitors: Bongkrekic acid
Explanation:
Electron transport inhibitors: Cyanide, Rotenone
Cytochrome oxidase also known as complex IV in the electron transport chain, carries electrons from cytochrome c to oxygen. It is a large enzyme having 13 subunits. Subunit 1 contains two heme groups , a and a3. Electrons are tranferred from heme a to oxygen bound to heme a3. The reaction of cyanide with heme a3 blocks this process of eleron transport
.Rotenone blocks electron transfer at NADH dehydrogenase (NAD−Q(NAD−Q oxidoreductase) by preventing electron transfer from Fe-S center to ubiquinone.
Uncoupling agents: trifluorocarbonylcyanide phenylhydrazone (FCCP)(FCCP)
The transfer of electrons from NADH through the respiratory chain to molecularoxygen is coupled to proton pumping from the inner mitochondrial matrix to the intermembrane space. This generates a proton motive force which is utilized in ATP synthesis. Trifluorocarbonylcyanide phenylhydrazone (FCCP)(FCCP) increases membrane proton permeability, causing protons to leak back into the mitochondrial matrix, thereby uncoupling the processs of ATP synthesis and proton flux.
ATP synthase inhibitors: Oligomycin
ATP synthase is the enzyme rensponsible for ATP synthesis. It has two functional domains,: F₁ and F₀. Oligomycin binds to F₀ and blocks the proton channel preventing rotation of the F₁ subuni, thus, preventing ATP synthesis from ADP.
Transport inhibitors: Bongkrekic acid
Adenine nucleotide translocase is a transport protein that transports free ADP from the cytoplasm into the mitochondrial matrix, while ATP produced from oxidative phosphorylation is transported from the mitochondrial matrix to the cytoplasm o the cell.
Bongkrekic acid inhibits Adenine nucleotide translocase, thus preventing ATP from leaving the mitochondria and starving cells of needed energy.
After a volcanic eruption, lava flows on the surface of the Earth. After the lava has time to cool, scientists notice that plants are starting to grow on the lava surface. What kind of ecological process could you infer is happening and why?
Answer:
The correct answer is ecological succession.
Explanation:
For the growth and development of an ecosystem, the phenomenon of ecological succession plays an essential role. A slow procedure by which the ecosystems modify and develop with time is termed as the ecological succession. There are prime two kinds of succession, that is, primary succession and secondary succession.
The phenomenon of ecological succession helps in the colonization of the novel areas, and in the recolonization of the destructed ecosystems, this helps the species to get amend with the modifications taking place in the surroundings and helps them to thrive. The given case is an illustration of ecological succession as the flowing of lava creates barren land, which further helps in the establishment of the pioneer plants. These pioneer species of plants helps in the development of a new ecosystem.
Given two types of starfish, gold ones and purple ones, that are members of the same species. In your sample area, there are 325 gold starfish and 150 purple starfish (assume purple is dominant)
A. Find the genotype frequencies for "SS", "Ss", & "ss"
B. Find the allele frequencies for "S" (p) & "s" (q)
Answer: I believe I can fly
Explanation:
I believe I can touch the sky.
JK Love you bae
Chris talked to his grandma on the phone, and she asked what birthday presents he received. Chris picked up a toy bat
and said, "This is what I got,"fully expecting his grandma on the other end of the phone to see the toy bat, too. What
aspect of development is Chris showing?
concrete operations
egocentrism
abstract thinking
sensory motor skills
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Answer:
I think it's concrete operations
Answer:
1
Explanation:
--- is the frame work of the
body of an organism.
(a)flesh (b)tongue (C)skeleton
(d)eye
Answer: C :Skeleton
Explanation: The skeleton is the frame work of the body of an organism. Among other functions the skeleton gives the body shape, support, rigidity and protect the body's delicate organs.
you have selected the following prediction to test: Previously thinned forests will have higher tree survival than adjacent forests that were not thinned. Now you need to define the key variables that you will use to test this prediction. For the following variables, sort them as independent variables, dependent variables, or variables that should be controlled (held constant)1. thinning or no thinning before the fire elevation of the site 2. dominant tree species 3. tree survival rate after the fire A. Independent variableB. Dependent variable C. Controlled variable
Answer:
A. Independent variable 2. dominant tree species
B. Dependent variable 3. tree survival rate after the fire
C. Controlled variable 1. thinning or no thinning before the fire elevation of the site
Explanation:
A. An independent variable doesn't undergo changes during the experiment because it is not conditioned by other variables in the experiment. In this example, dominant tree species represent a variable that is independent of the experiment itself.
B. A dependent variable is those that you need to measure and depends on the other factors in the experiment. In this example, tree survival is dependent on the factors that affect the results (i.e. humidity in the trees, presence of resinous material in the trees that are non-combustible, etc.)
C. A controlled variable is those that we use to observe an expected outcome in the experiment and therefore it is used to compare with the test group. In this case, thinning or no thinning are used as positive and negative controls, respectively, because they enable their comparison with the test group in the experiment.
Eating disorders are caused by all of the following factors EXCEPT:
A. psychological factors
B. genetic factors
C. economic class
D. financial factors
Please select the best answer from the choices provided.
Ο Α
О В
О С
OD
Answer:
C
Explanation:
Eating disorders are caused by all of the following factors except economic class. Thus, option C is correct.
What is Eating disorders?Eating disorders could have the serious, or the life-threatening consequences. As the result, it has been critical to seek the treatment for these conditions. Before the doctor can treat an eating disorder, the condition that must be diagnosed. Some people may deny that there has the problem.
Disordered eating has been refers to the variety of the irregular eating behaviors that may or may not warrant the diagnosis of an eating disorder. Eating disorders, such as the anorexia nervosa (AN) and bulimia nervosa (BN), are the diagnosed disease using specific and narrow criteria.
Therefore, Eating disorders are caused by all of the following factors except economic class. Thus, option C is correct.
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. Why did Jim decide to move his lab to New York? a) he wanted to be near where the trials were occurring b) he wanted to be closer to his family c) the pharmaceutical company demanded it
Answer:
a) he wanted to be near where the trials were occurring
Explanation:
hope it helps .
What type of extreme weather does global warming cause?
Answer:
Global warming also increases water vapor in the atmosphere, which can lead to more frequent heavy rain and snowstorms.
Explanation:
Each phospholipid is made up of:
A. Two phosphate groups and one fatty acid chain.
B. A phosphate group and two fatty acid chains.
O
C. A phosphate group and a fatty acid chain.
O
D. Two phosphate groups and two fatty acid chains.
Answer:
The correct answer is B. A phosphate group and 2 fatty acid chains.
Explanation:
A P3 X
Each phospholipid is made up of a phosphate group and two fatty acid chains. The correct option is B.
What are phospholipids?Phospholipids are lipids that have two types of edges. It has a hydrophobic tail and a hydrophilic head. The plasma or cell membrane, according to the fluid mosaic model, comprises substances like proteins and phospholipids.
A phosphate head and a fatty acid (lipid) tail make up the phospholipid layer, also known as the phospholipid layer, which is formed by the phospholipid.
Small molecules like oxygen gas can diffuse through the phospholipid layer, which facilitates the passage of small molecules but not larger ones. Biological membranes are formed by two lipid layers, proteins, and glucans.
Therefore, the correct option is B. A phosphate group and two fatty acid chains.
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Arrange the isotopes of oxygen and carbon in order of decreasing number of neutrons.
Rank the isotopes from most o fewest neutrons. To rank items as equivalent, overlap them.
Answer:
C-12 > C-13 > C-14,O-16 > C-16,O-18
Explanation:
Generally, isotopes are described as atoms of the same elements with the same atomic number but different number of neutrons.
Hence,
For O-18, oxygen has an atomic number of 8 and neutron number of 10.
For C-14, carbon has an atomic number of 6 and neutron number of 8.
For C-13, carbon has an atomic number of 6 and neutron number of 7.
For C-16, carbon has an atomic number of 6 and neutron number of 10.
For carbon 12, carbon has an atomic number of 6 and neutron number of 6.
For O-16, oxygen has an atomic number of 8 and neutron number of 8.
Hence the rank from the fewest neutrons would be C-12>C-13>C-14,O-16>C-16,O-18
