Answer:
Competition is central to the theory of natural selection. Why does competition occur? Organisms typically produce too many offspring, and resources are limited. All organisms, including prokaryotes and eukaryotes, use essentially the same genetic code.
Explanation:
All organisms, including prokaryotes and eukaryotes, use essentially the same genetic code.
Diffusion is an example of
a) passive transport
b) phagocytosis
c) endocytosis
d) active transport
Explanation:
Diffusion is an example of
a) passive transport
Answer:
[tex]\boxed {\tt A. \ Passive \ transport }[/tex]
Explanation:
First, let's define diffusion.
Diffusion is the movement of particles from areas of high concentration to low concentration. This movement is also known as moving down a concentration gradient. This process of diffusion occurs without any energy.
Since it doesn't require energy expenditure, diffusion is an example of passive transport.
Therefore, the correct answer is A. passive transport.
What is the VOLUME of a cube that measures 2 cm X 4 cm X 3
cm?
O 8 cm3
O 11 cm3
24 cm3
Answer:
The volume is 24 cubic centimeters.
Explanation:
Volume = Length x Width x Height
why does the density of liquid water increase as it cools?
The density has been inversely proportional to the volume of the substance and the temperature. The density of the liquid water increases as it cools as the temperature decreases.
What is the relation between density, volume, and temperature?The density of the substance has been defined as the place occupied by the substance in a liter or milliliter of solution. It has been known to show an inverse relationship between volume and temperature.
As the liquid water cools down its temperature starts decreasing which causes the collision of the particles and kinetic energy to decrease leading to decrease in the volume of the matter as particles start moving close to each other.
As a result, the volume of the substance gets decreases which inversely affects the density of the material. The decreased volume increases the density of the substance. Hence, density shows an opposite reaction to the factors like temperature and volume.
Therefore, an increase in density is due to a decrease in the volume of the matter.
Learn more about density, and temperature, here:
https://brainly.com/question/12505420
#SPJ2
what is scientific investigation?.
Answer:
It involves careful observation, applying rigorous skepticism about what is observed, given that cognitive assumptions can distort how one interprets the observation.
Explanation:
- google wikipiedia
Heidi is a chocolate lover and eats chocolate daily. She has a bad break-out and her friend told her eating chocolate causes pimples. Heidi continues to eat chocolate every day for 2 weeks and counts the number of pimples she has on her face. The following 2 weeks she doesn't eat any chocolate and counts the number of pimples on her face
A. Independent Variable=
B. Dependent Variable=
C. Control=
Answer:
Independent variable
Explanation:
Because the pimples depends on the body hormones, and not just chocolate
Which of the following is the Earth's largest reservoir of carbon dioxide?
atmosphere
icebergs
oceans
O soil
What step of the scientific method immediately follows "state the problem"?
A. Draw conclusions.
B. Make observations.
C. Form a hypothesis.
D. Design an experiment.
Answer:
c
Explanation:
before you can do a, c, or d you must form a hypothesis to be tested.
Explain negative feedback.
BLANK are fatty acid derivatives that function in inflammatory and allergic reactions, blood clotting, and smooth muscle contractions.
The answer is lipids
Describe the path of a signal from a neuron's dendrite to a second neuron's dendrite.
Answer:
Dendrite are short hair like structures originating the periphery of the cytoplasm. Dendrites are either in close contact with other neurons or the stimulus receptor cells.
I would attach a diagram with this note I hope it helps.
Part A
Why are diseases such as AIDS, which reduce population density, undermining the ability of
developing countries to make the transition to more modern, industrialized societies?
Answer:
other than AIDS there is STDS
Explanation:
sexual transmitted disease
Is DNP and cyanide an inhibitor of cellular respiration?
Answer: Yes.
Explanation:
DNP and cyanide are both cellular respiration inhibitor.
Cyanide is a neurotoxin that can prevent cellular respiration by it's inactivation activity on mitochondria enzymes called cytochrome oxidase.
DNP (2,4-Dinitrophenol is a chemical that inhibit cellular respiration. It help to shuttle proton across cell membranes of living cells by spreading the proton along along the mitochondria and collapsing the force that produced energy for the cell activities.
Mitochondria differ from chloroplasts in that Group of answer choices mitochondria convert solar energy to chemical energy whereas chloroplasts convert one form of chemical energy to another mitochondria contain three different membrane-bound compartments, whereas chloroplasts contain two mitochondria contain membrane folds called cristae, whereas chloroplasts contain vesicles in stacks called grana mitochondria are not found in plants, whereas chloroplasts are not found in animals
Answer:
mitochondria contain membrane folds called cristae, whereas chloroplasts contain vesicles in stacks called grana
Explanation:
Mitochondria are composed of two membranes (i.e., the inner and outer membranes), which are separated by the intermembrane space. The inner mitochondrial membrane is composed of several folds that form the cristae, which extend into the mitochondrial matrix. On the other hand, in chloroplasts, the inner membrane consists of interconnected stacks of sacs named thylakoids, whose arrangement is known as grana.
Hydrogen bonds are the weakest type of bond yet they are valable in biology because a large number of
hydrogen bonds together in one molecule actually make the molecule stong.
A.True
B.False
Answer:
true
Explanation:
You catch, tag, and release 35 fish back into a pond. Then, you catch 70 more fish, 12 of which have tags on them. What is the best estimate of the number of fish in the pond?
a.
100
b.
150
c.
142
d.
204
Answer:
D. 204
Explanation:
proportion : 12/70 = 35/x
70(35)=12x
2450=12x
204.166667=x and round it to make it 204.
The best estimate of the number of fish in the pond is 204. Thus, option D is correct.
Calculation:
proportion : 12/70 = 35/x
70(35)=12x
2450=12x
204.166667=x and round it to make it 204.
What is average speed?Average speed has been defined as the total distance travelled in total time taken it means that we can calculate the average speed obtained by an object .
Mathematically,
Average Speed = Total distance travelled/Total time taken
It's S.I unit is meter/second
Average speed is a scalar quantity it means that it has only magnitude not direction.
Ecosystem has been the branch of science that deals with the study of relationship between living organisms and natural phenomena. Ecosystem has the system in which both living as well as nonliving organisms are present in a particular location.
Green plants contain chlorophyll and they prepare there own food in the presence of sunlight and the process is known as photosynthesis. In the process of photosynthesis light energy converted into chemical energy.
Therefore, The best estimate of the number of fish in the pond is 204. Thus, option D is correct.
Calculation:
proportion : 12/70 = 35/x
70(35)=12x
2450=12x
204.166667=x and round it to make it 204.
Learn more about average speed here:
https://brainly.com/question/12322912
#SPJ2
Which of the following characteristics can be utilized to classify and categorize viruses?
Type of nucleic acid
Hosts infected
Strandedness of nucleic acid (positive/negative sense)
Capsid shape
Gram stain category
Colony growth characteristics
Presence or absence of capsule
Presence or absence of envelope
Disease symptoms
Fermentation of different sugars
Answer:
Type of nucleic acid
Strandness of type of nucleic acid (positive /negative)
colony growth characteristics
Hosts infected
Capsid shape
Disease symptoms
presence or absence of envelop
presence or absence of capsid shape
Explanation:
The characteristics that can be utilized when classifying/categorizing viruses are :
Type of nucleic acid
Strandness of type of nucleic acid (positive /negative)
colony growth characteristics
Hosts infected
Capsid shape
Disease symptoms
presence or absence of envelop
presence or absence of capsid shape
The Remaining two categories i.e Gram stain category and fermentation of different sugars cannot be used to classify or categorize viruses but they can be applied for the categorization of Bacteria
What happens to a gas when heat is removed?
A. The particles have more kinetic energy.
B. The particles move faster and become less compact.
C. The particles move slower until the matter changes into a. liquid.
D. The particles reduce their size by at least half.
You please help me with science and I will give you bring list
Answer:
A
Explanation:
Protons are positively charged so A is right
We know the rest are wrong because neutrons have no charge and electrons are negatively charged.
Answer:
The answer is A.
Explanation:
Lets look at the charges of each part and see which one lines up.
A) The protons in an atom have a positive charge.
B) The nucleus contains the protons and neutrons. Since the neutrons have no charge and the protons have a positive charge, the overall charge of the nucleus is positive.
C) Electrons have a negative charge.
D) The neutrons have a neutral charge meaning they do not have a positive or negative charge.
The only answer that lines up with the choices is A.
Balance this equation
Answer:
6CO2 + 6H2O → C6H12O6 + 6O2
Explanation:
The diagram to the right represents the lytic cycle.
What is occurring at step C?
O The pieces made in replication are
assembled to complete the new virus particles
O The virus attaches to the host cell.
O The host's DNA is disassembled and the
virus takes over the cell's metabolic activity.
O The new viral nucleic acid and viral proteins
are replicated.
O Lysis occurs, killing the cell.
This is on edg btw. Please help I’ve been stuck for like 15 minutes and there’s a time cap.
Answer: D
“ the new viral nucleic acid and viral proteins are replicated “
Explanation:
Answer:
D. The new viral nucleic acid and viral proteins are replicated.
Explanation:
I took the assignment. I hope this helps!
What is another word that can be used to describe homeostasis?
stable
complete
correct
equal
Answer:
stable
Explanation:
Another word that can be used to describe homeostasis is - stable
HomeostasisIt is an organism's process of maintaining a stable internal environment suitable for sustaining life. It describes the internal stability of an organism.
Most of the homeostasis process is maintained by the cell membrane by allowing what or what not to enter or exit in the cell, however, the complete cell takes part in the homeostasis.
Learn more about Homeostasis:
https://brainly.com/question/1046675
nobody can answer this by their own part 2
The process by which molecules such as glucose are moved into cells along their concentration gradient with the help of membrane-bound carrier proteins is called The process by which molecules such as glucose are moved into cells along their concentration gradient with the help of membrane-bound carrier proteins is called
Answer:
Facilitated diffusion
Explanation
Generally when molecules undergo passive diffusion along their concentration gradient,and aided by the cell membrane which provide hydrophillic areas for the molecules to pass through,this is called facilitate the diffusion.The membrane would be impermeable to these molecules without the proteins,
It is a special transport mechanism for large molecular substances like glucose and Amino acids and ions e.g Na+ and K+.Therefore facilitated mean to aid,thus the membrane proteins aids or help molecules to pass through.
Channel protein and carrier proteins are the two type of protein involved in the transport.They are specific for each molecules,and would only allow the passage of one molecule or ion through.
Energy is not needed for this to occur place the molecules of glucose are moving along the concentration gradient.
Specifically channel proteins are fixed in shape,some are gated.They are water filled pores Carrier proteins are flexible and adjust their shape to the two media for transport.Thus if the concentration of substances to be transported i s higher on on side A of the cell membrane proteins,the carrier protein will be open to that side to convey the molecules across.
The amount of molecules transported depend on the amount of the carries and channel protein available.
What is one possible reason black babies are more likely than white babies to be born to small or too early? URGENT PLEASE HURRY
Babies can be born premature due to the mother smoking or drinking. Another reason could be over stressing. This has nothing to do with race, but it could possibly be a reason because black women are more likely to? Not super sure on this one, hope it helped.
How many extrinsic eye muscles control each eye in a cow?
O 12
06
O 5
O4
Answer:
Cows have 4 extrinsic eye muscles that control each eye in a cow. They can look up, down, left, and right, but they can't roll their eyes as you can.
Are individual organelles (cell structures) living? Defend your answer.
Answer:
the cell structure is living
Explanation:
CELL! cells are living
I need help with my biology work please
I did the. work on this piece of paper and the only reason I'm typing here is because I need an answer to submit
Pollen grains are formed in the anther of the flower by which sequence of events?Haploid microspore mother cells divide by mitosis to form four diploid microspores. Each microspore develops into a pollen grain by meiosis. Diploid microspore mother cells divide by meiosis to form four haploid microspores. Each microspore develops into a pollen grain by mitosis. Diploid megaspore mother cells divide by mitosis to form four diploid megaspores. Each megaspore develops into a pollen gram by meiosis. Diploid microspore mother cells divide by mitosis to form four haploid microspores. Each microspore develops into a pollen grain by meiosis. Haploid microspore mother cells divide by meiosis to form four diploid microspores. Each microspore develops into a pollen grain by mitosis.
Answer:
Diploid microspore mother cells divide by meiosis to form four haploid microspores. Each microspore develops into a pollen grain by mitosis.
Explanation:
Pollen grains contain the male gametes of a sexually reproducing plant. Pollen grains are haploid cells in nature produced by the meiotic division of microspore mother cells (located in the anther). The meiosis of these diploid (2n) microspore mother cells give rise to four haploid microspores. This process in plants is called microsporogenesis.
Each haploid microspore (n) develops into pollen grain called microgametophye (bearing male gamete) via mitotic division. During the pollen grain formation, a wall is formed around the microspores.
which of the following is not a reactant needed for photosynthesis
A. sunlight
B. oxygen
C. carbon dioxide
D. water
Answer:
I think it B
Explanation:
By definition of photosynthesis, oxygen is not a reactant needed for photosynthesis.
First, you have to know that photosynthesis is a metabolic process carried out by certain cells of autotrophic organisms, that is, those that have the capacity to make their own food, such as plants.
With this process, plants capture the energy of sunlight and transform it into chemical energy, to produce organic matter.
Photosynthesis takes place in 2 stages:
In the first stage the plants absorb water from the soil through the roots. Through their stems they transport it to their leaves. In these it meets the sunlight captured by chlorophyll, which breaks the water molecule, separating hydrogen (H) from oxygen (O2).The other stage is capturing carbon dioxide. This provides the carbon and oxygen atoms that, together with hydrogen and stored energy, will form the glucose molecule, from which compounds are produced that are the basis of food for plants and other living beings.Then, sunlight, carbon dioxide and water are needed for the photosyntesis, while oxygen is released to the environment.
This is sunlight, carbon dioxide and water are reactants needed for photosyntesis, and oxygen is not a reactant needed.
Learn more:
https://brainly.com/question/13523854?referrer=searchResultshttps://brainly.com/question/13523849?referrer=searchResultshttps://brainly.com/question/873199?referrer=searchResultsWHAT IS THE SEQUENCE OF A-T-G-G-C-A,
Answer:
It is the nucleoid and amino acid sequence
Explanation: