Answer:
The correct answer is D.
Explanation:
Scientists observed and discovered that some traits in certain embryos disappear as the embryo develops.
Hopefully, this helps! :D
Ask your question below!
Answer: D
Explanation: Some traits in certain embryos disappear as the embryo develops.
Have a good day yay!
hi hi hi?? pls say bye
Answer:
But I don't want you to go please stay with us we all love you
Describe the role of the gametophyte and the sporophyte in the plant reproductive cycle.
If you have 50 mg of starch, how much water needs to be added to make a concentration of 5g/mL.
1:5 dilution = 1/5 dilution = 1 part sample and 4 parts diluent in a total of 5 parts. If you need 10 ml, final volume, then you need 1/5 of 10 ml = 2 ml sample. To bring this 2 ml sample up to a total volume of 10 ml, you must add 10 ml - 2 ml = 8 ml diluent.
In the scientific method An educated guess or suggested solution to a problem is known as which of the following
Question 1 options:
guessology
dependent variable
Hypothesis
conclusion
Answer:
Hypothesis
Explanation:
This is a guess that is not that very probably correct so its just suggested, from approximating things
There are more hydrogen atoms in living organisms than any other atom, but oxygen is more abundant in terms of
mass.
Why is this statement true?
O Hydrogen is a gas, but oxygen is a solid.
O Hydrogen atoms have a lower mass than oxygen atoms.
• Hydrogen atoms make up more of water's mass than oxygen atoms.
Hydrogen is present as single atoms and oxygen is bonded in compounds,
Answer:
Hydrogen atoms have a lower mass than oxygen atoms.
Explanation:
The statement which is true is Hydrogen atoms have a lower mass than oxygen atoms. Thus, option C is correct.
What is hydrogen?
Hydrogen is the most abundanet element representing nearly three quarters of the mass of the universe. Hydrogen is found in the water that covers 70% of the surface of our planet as well as in all organic matter. Hydrogen is the simplest element in the universe. It is composed only of one proton (p) and only one electron (e-).
Hydrogen is the lightest element of all elements and gases; it is 14 times lighter than air. A "spill" of hydrogen gas immediately diffuses into the air and pollutes neither the ground nor the water table. Hydrogen is invisible, odorless and nontoxic. It does not cause acid rain, does not deplete the ozone layer and does not generate dangerous emissions.
Carbon is so abundant in living things even though oxygen is the most abundant element on Earth because carbon atoms can bond with one another to make chains and cyclic structures whereas oxygen atoms cannot form chains or cyclic structures.
Therefore, The statement which is true is Hydrogen atoms have a lower mass than oxygen atoms. Thus, option C is correct.
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Ecosystem always include
Answer: Life and Weather
Explanation: An ecosystem includes all of the living things like plants, animals, and organisms in a given area, interacting with each other, and also with their non-living environments like weather, earth, sun, soil, climate, atmosphere.
What does the energy from sunlight actually do to the plant cell? *
It heats up the plant cell
It excites electrons
It is unknown
It transforms to kinetic energy
Answer:
It excites electrons
Explanation:
Energy from sunlight excites electrons in plant cells and drives the chemical reaction needed to produce food in plants.
This reaction is called photosynthesis. During photosynthesis, green plants manufacture their food using sunlight in the presence of carbon dioxide and water. The product of the reaction is glucose and oxygen gas. The role of the sunlight is to excite electrons which facilitates the process.do cells produce waste
Impact of climate change on ecosystems
Explanation:
destroys the habitat.
kills off the inhabitants (animals and plants)
100 points!!!!
Using PCR it is possible to introduce both random and site-specific mutations into a DNA sequence.
True or False?
I think it is true because PCR’s can introduce random mutations when creating point mutations
Answer:
true you were correct
Explanation:
A (Blank) is a specific sequence of nucleotides in a strand of DNA that codes for a specific sequence of amino acids.
What factors motivated colonization among European countries.
Answer:
The two main reasons for European exploration were to gain new sources of wealth. By exploring the seas, traders hoped to find new, faster routes to Asia—the source of spices and luxury goods. Another reason for exploration was spreading Christianity to new lands.
Explanation:
Because most nerve cells do not typically undergo mitosis, they are generally not capable of which of the following?a.producing enzymesb.generating more nerve cellsc.performing cellular respirationd.transporting ions against a concentration gradien
Answer:
B. generating more nerve cells
Explanation:
Mitosis is the process whereby a cell divides into two genetically identical daughter cells. It is way through which living cells reproduce and multiply themselves.
Hence, a nerve cell that do not typically undergo mitosis will be incapable of replicating/multiplying itself, hence, unable to generate more nerve cells.
Which of the following is a risk of airbags?
1. They cause injuries to passengers.
2.They expand too slowly after accidents.
3.They increase the cost of vehicles.
4.They alter the function of safety belts.
Airbag deployment can reach speeds of up to 200 mph. If your face, chest, or any other body part is too close to the steering wheel when the bag deploys, you could experience severe fractures or internal injuries as a result.
1.(They cause injuries to passengers)
Hope this helps!
The space between soil particles is known as which of the following?
O pores
O apertures
O holes
orifices
Answer:
pores
Explanation:
edge intro to AG
Answer: The correct answer is pores
Explanation: This answer has been confirmed correct.
are nutrients recycled through living systems? is energy recycled through living systems?
BRAINLIST
Igneous rock.
(a )Tilting,
(B) Erosion,
(c) Folding
Answer:
B. Erosion
Explanation:
Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava.
Erosion is the process of wind, water, and ice breaking down rocks tint smaller pieces. Erosion breaks down igneous rocks, metamorphic rocks and sedimentary rocks. Erosion breaks down igneous rocks in the same manner as it breaks down other rocks
match the various types of intrusive rock.
Answer:
1. d!ke
2. sill
3. batholith
4. laccolith
Explanation:
hope this helps
what are the products of the combustion of a hydrocarbon
Answer: Carbon dioxide, water, and heat.
Explanation: Hydrocarbon combustion refers to the type of reaction where a hydrocarbon reacts with oxygen to create carbon dioxide, water, and heat. Hydrocarbons are molecules consisting of both hydrogen and carbon. They are most famous for being the primary constituent of fossil fuels, namely natural gas, petroleum, and coal.
Answer:
Carbon Dioxide and Water!!!
Explanation:
EDG2021
Similarities in Aemoba and Humans
Answer:
Both Amoeba and human beings are heterotrophs and derive nutrition from other organisms. Dissimilarity: Human beings have a complex digestive system and different nutrients are digested in separate regions. Amoeba does not have a digestive system and all the nutrients are digested in the food vacuole.
What is the purpose of anaphase?
A) to assist the DNA in forming proteins and chromosomes
B) to promote the growth of new chromosomes within the cell
C) to provide space within the cell for chromosomes to move around
D) to ensure that each daughter cell gets a complete copy of the parent’s DNA
Answer:D
Explanation:
Answer:
d is the correct answer
Explanation:
Plants use their ________________ to make glucose and their __________________ to break the glucose down to obtain ATP.
Answer: Plants use their photosynthesis to make glucose and their chloroplast to break the glucose down to obtain ATP.
Explanation:
What might be some reasons why cellular communication is necessary?
Answer:
in single-celled organism,signaling allows population of cells to coordinate with one another and work like a team to accomplish tasks no single cell could carry out on its own. the study of cell signaling touches multiple biological disciplines 5 years developmental biology , neurontology, and endocrinology.
* explanation* : hope this helped you
Glycolysis is the first of three steps in cellular respiration. Review glycolysis by matching each phrase on the right with a term on the left. Some terms are used twice.
____1. Compound formed between glucose and pyruvic acid
____2. Not involved in glycolysis
____3. Fuel molecule broken down in glycolysis
____4. Produced by substrate-level phosphorylation
____5. Invested to energize glucose molecule at start of process
____6. Reduced as glucose is oxidized
____7. Glucose converted to two molecules of this
____8. Assembled to make ATP
____9. "Splitting of sugar" 10. Carries hydrogen and electrons from oxidation of glucose
A NADH
B. Pyruvic acid
C ATP
D. NAD
E .Glucose
F. Glycolysis
G. ADP and P
H.Oxygen
I. Intermediate
Answer:Glycolysis is the first of three steps in cellular respiration. Review glycolysis by matching each phrase on the right with a term on the left. Some terms are used twice.
____1. Compound formed between glucose and pyruvic acid
____2. Not involved in glycolysis
____3. Fuel molecule broken down in glycolysis
____4. Produced by substrate-level phosphorylation
____5. Invested to energize glucose molecule at start of process
____6. Reduced as glucose is oxidized
____7. Glucose converted to two molecules of this
____8. Assembled to make ATP
____9. "Splitting of sugar" 10. Carries hydrogen and electrons from oxidation of glucose
A NADH
B. Pyruvic acid
C ATP
D. NAD
E .Glucose
F. Glycolysis
G. ADP and P
H.Oxygen
I. Intermediate
Explanation:
The answer to the statements are:
A. NADHB. Pyruvic acidC ATPD. NADE . GlucoseF. GlycolysisG. ADP and PH.OxygenI. IntermediateWhat are cellular respiration and its purpose?Cellular respiration is the system that occurs inside the mitochondria of organisms (animals and plants) to break down sugar inside the presence of oxygen to release strength in the form of ATP. This system releases carbon dioxide and water as waste products.
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Why are new stars likely to form in irregular galaxies?
A. They contain a large amount of gas and dust
B. They're part of the Local Group
C. They contain many black holes
D. They don't have regular shapes
Answer:
A. They contain a large amount of gas and dust
Explanation:
Guess what?
Explanation:
I took the test!
Explanation:
Have a good day
If you are feeling tired and slow, what type of food would you eat to get an immediate energy burst?
A. Lipids
B. Polysaccharides
C. Proteins
D. Monosaccharides
Answer:
B. Polysaccharides
Explanation:
The polymers of Carbohydrates are polysaccharides. Carbohydrates contain lots of gluten/sugar, which is great for quick energy.
Visual Reading Tool: Inside a Chloroplast
1. Fill in the reactants and products of the light-dependent and light-independent reactions of
photosynthesis.
Light-Dependent
Light-Independent
Reactions
Reactions
NADPH
ATP
THYLAKOID
ADP
STROMA
NADP
2. What is the NADPH responsible for?
3. Where do the "light" reactions (light-dependent) take place?
Answer:
A) Light dependent reactions
Reactants: light, H2O
Products: Oxygen gas
B) Light independent reactions
Reactants: C02
Products: Glucose
2. NADPH is an electron carrier which transfers electrons in the electron transport chain of photosynthesis
3. Light reactions occur in the THYLAKOID membrane.
Explanation:
As depicted in the image in this question, the photosynthetic process can be grouped into two stages viz; light dependent reactions and light independent reactions. The light dependent reactions, which take place in the THYLAKOID MEMBRANE of the Chloroplast, involves the synthesis of ATP (energy carrier) and NADPH (electron carrier) to be used in the next stage. The reactants of light dependent reactions are light energy from sun, and water (H2O) while the product is Oxygen (O2) gas.
In the light independent reactions, the ATP and NADPH are used to synthesize GLUCOSE as a product from Carbon dioxide (CO2) reactant.
2. The NADPH is is an electron carrier produced from the reduction of NADP+, which transfers or donates electrons to other molecules in the electron transport chain of photosynthesis. This is crucial in building of the proton gradient for ATP production.
3. The light reaction or light dependent reaction takes place in the THYLAKOID MEMBRANE of the Chloroplast.
The light-dependent reactions use ADP and NADP to produce NADPH and ATP (it occurs in the thylakoid membrane), whereas light-independent reactions use NADPH and ATP. NADPH is a cofactor.
The light-dependent reactions use sunlight and water (H2O) to produce oxygen (O2), NADPH and ATP, whereas light-independent reactions use carbon dioxide (CO2) NADPH, and ATP to produce simple carbohydrates (e.g., glucose).Both light-dependent reactions and light-independent reactions occur in the chloroplast: light-dependent reactions occur in the thylakoid membrane of the chloroplast, whereas light-independent reactions occur in the stroma of the chloroplast.Reduced nicotinamide adenine dinucleotide phosphate (NADPH) is a cofactor that transports electrons (e-) and protons (H+) released by sunlight into new carbon-carbon bonds and thus serves to produce simple carbohydrates (i.e., sugars).In conclusion, the light-dependent reactions use ADP and NADP to produce NADPH and ATP (it occurs in the thylakoid membrane), whereas light-independent reactions use NADPH and ATP to create carbohydrates.
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how are land and sea breezes important to human population?
Answer:
Explanation:
Land is important as it provides a suitable habitat for humans as with high population a higher land mass is needed in order to provide satisfactory living condition likewise if lower population less land mass is needed while sea breeze is needed to it ability to stabilize thermal temperature in which is needed to keep a population physiology content
What is the facilitated diffusion of water through a selectively
permeable membrane?
Answer:
Osmosis
Explanation:
what part of the water cycle is when water changes from a liquid to a gas?
Answer:
Evaporation is the process by which water changes from a liquid to a gas or vapor. Evaporation is the primary pathway that water moves from the liquid state back into the water cycle as atmospheric water vapor.
Explanation:
Answer:
Evaporation
Explanation:
Evaporation is the process by which water changes from a liquid to a gas or vapor. Evaporation is the primary pathway that water moves from the liquid state back into the water cycle as atmospheric water vapor.
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