Answer:
C
Explanation:
Positive natural selection, or the tendency of beneficial traits to increase in prevalence (frequency) in a population, is the driving force behind adaptive evolution. ... At the molecular level, selection occurs when a particular DNA variant becomes more common because of its effect on the organisms that carry it.
Cells are made of organelles, specialized structures that each perform specific functions that help the cell maintain homeostasis. This is much like the body systems work together to help the body maintain homeostasis. Consider the function of the nervous system. Which organelle is most similar in function?
Answer:
Organelles serve specific functions to keep a cell alive.
Explanation:
Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.
Answer: D i just took the test
Explanation:
Which of the following is considered a balance within an organism *
a. metabolism
b.adaption
c. homeostasis
d. none of these
PLS HELP QUICK IM DOING A TWST
Answer:
C
Explanation:
In biology, homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems. This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits.
The production of offsrpings is a charatericities of life that enables the continuation of a species.
Answer:
"Reproduction" is a characteristic of life that enables the continuation of a species
Explanation:
I hope it helped
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In your own words, discuss the importance of enzymes within a living system and include what the function of an enzyme is. Using your best grammar, write 2-4 sentences.
Answer
Enzymes are proteins that act as biological catalysts that increase the rate if a reaction by decreasing the amount of energy needed to speed up the reaction. Enzymes help speed up metabolism, or the chemical reactions in our bodies. They build some substances and break others down. Enzymes build muscle, destroy toxins, and break down food particles during digestion.
Explanation:
Have a good day
Someone plz help me :(
Answer:
c
Explanation:
differentiate between larva of culex mosquito and that of anopheles mosquito on the basis of feeding habit
Answers in the image
Hope it helps!
Explanation:
•larva of culex mosquito is bottom feeder where is Lava of anopheles mosquito is surface feeder
• Culex mosquito respiratory siphon is long whereas a the anopheles mosquito respiratory siphon is short
•Culex mosquito form an angel inside water whereas anopheles mosquito remains of parallel with water surface
From memory List the characteristics of life
Answer:
Explanation:
There's a nice mnemonic: mrs gren
movement
reproduction
sensitivity
nutrition
excretion
respiration
growth
Answer:
have cells
use energy
reproduce
respond to the environment
grow and develop
Explanation:
How does the field of science gain knowledge and understanding
O by using the latest technologies
O through the testing of hypotheses
O by making value judgments
O through deductive reasoning
Science gains knowledge and understanding through the testing of hypotheses.
A hypothesis is a given explanation of a particular phenomenon from the real world, which is tested (i.e., either verified or rejected) by using the scientific method.The scientific method is a methodology based on experimental and observational procedures that allow obtaining and interpreting empirical evidence.Subsequently, the evidence obtained from experimentation and/or observation is assessed in order to accept or reject the working hypothesis.Learn more in:
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Answer:
through the testing of hypothese.
Explanation:
good morning
define filtration process
Answer:
Good morning
Have a great day ahead.
❤❤
Answer:
Filtration is the process of separating suspended solid matter from a liquid, by causing the latter to pass through the pores of some substance
Identify two examples of foods that contain high amounts of
each of the following macromolecules: carbohydrates, lipids, and proteins.
Answer:
Carbohydrates: pasta and rice, both very starchy
Lipids: beef and bacon, both have animal fat in themm which contains lipids
proteins: eggs and beef, lots of animal derived foods contain proteins since thy are the basis of life.
Explanation:
Here are two examples for each of the three macromolecules; Carbohydrates; Bread, Rice. Lipids (Fats); Avocado, Salmon. Proteins; Chicken Breast, and Beans.
Carbohydrates;
Bread; Bread is rich in carbohydrates, primarily in the form of starch. It provides a quick source of energy due to its high carbohydrate content.
Rice; Rice, especially white rice, is another significant source of carbohydrates. It is a staple food in many cultures and contributes to daily energy intake.
Lipids (Fats);
Avocado; Avocado is a fruit that contains healthy monounsaturated fats. It is often used in salads, spreads, and various dishes.
Salmon; Salmon is a fatty fish that provides omega-3 fatty acids, which are essential for heart and brain health.
Proteins;
Chicken Breast; Chicken breast is a lean source of protein, low in fat. It is commonly consumed for its high-quality protein content.
Beans; Legumes such as beans (e.g., kidney beans, black beans) are rich in plant-based proteins. They are a staple in many vegetarian as well as vegan diets.
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I will give branliest
5. Read the sentence, find the error and rewrite it.
Trypsin secreted by salivary glands digests the carbohydrates and it is also
called as Salivary amylase
Salivary amylase is a glucose-polymer cleavage enzyme that is produced by the salivary glands.
Which characteristic should describe all evidence collected by a scientist?
Answer:
creativity, curiosity, Logical
Need the answers due in a hour
Answer:
1) Description of coal:
2)Benefits of using coal for electricity
3)Negative consequences of using coal:
Explanation:
1)Coal is a black rock formed by decomposing organic material over millions of years.
2)Coal contains more energy and it is also cheaper than other fossil fuels.
3)Using coal releases more carbon dioxide than other fossil fuels and fosil fuel alternatives, causing damage to land, water and air.
2. What is the pH of a very acidic solution?
a:5
b:10
c: 1
d:14
Describe an alternative name for Enzymes. Explain why is this an appropriate term?
Question 5 (1 point)
About what percent of water is usable by humans and other members of the
biosphere.
17%
33%
0 72%
1%
%
Answer:
0.72% or 1%
information differs from source to source so it's difficult to find a percentage that everyone agrees on
How do plant and animal breeders
use the process of artificial
selection to increase productivity
in their crops and herds?
A. The breeders choose organisms with the most
desirable traits and breed them.
B. The environment selects the traits that are
passed on, and the breeders have no control over
it.
C. Artificial selection is a theory and does not
work, so breeders do not use it.
A animals and plants have sources
I think
Selective breeding is the practice of pairing parents who share particular features in order to produce offspring who have a greater number of desirable traits.Thus, option A is correct.
What plant and animal breeders process artificial selection?Selective breeding is the practice of pairing parents who share particular features in order to produce offspring who have a greater number of desirable traits. Humans have carefully selected a wide range of plants and animals for thousands of years, including agricultural species with higher yields.
Instead of allowing the species evolve spontaneously without human involvement, as in natural selection, people chose animals or agricultural products based on desirable qualities, a practice known as "selective breeding,” or artificial selection.
Therefore, The breeders choose organisms with the most desirable traits and breed them.
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Approximately what amount of the Earth's surface area is covered by water?
A) two thirds
B) four seventh
C) three fourths
D) one eighth
Answer:
three fourths
Explanation:
Which type of biomolecules are made up of fatty acids?
a. carbohydrates
b. proteins
c. lipids
d. nucleic acids
Answer:
c. lipidsExplanation:
As,
A lipid is a phospholipid, a major structural component of all cell membranes. It is composed of a glycerol molecule, two fatty acids
The type of biomolecule that is made up of fatty acids is Lipids and thus, option C is the correct answer.
Nucleic acids, Lipids, Proteins, and Carbohydrates, are some of the significant biomolecules. The characteristics of lipids are listed as follows:
The organic molecule that is specifically related to fatty acids and can be able to dissolve only in organic solvents and not in water are called lipids. The lipid molecule is composed of 1 molecule of glycerol and 3 molecules of fatty acids that are linked to one another. Oils, waxes, fats are some examples of lipid molecules.Thus, we can conclude that lipids are the type of biomolecules which is made up of fatty acids.
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If you are unsure of the accuracy of your data set. What is one way that you can feel more confident?
A Collect more data through further experimentation
B Take data from other experimenters
Extrapolate data based on what you think should happen
Ask a friend to read over it
circle the term that does not belong in each of the following groups, and briefly explain why it doesn't belong rock, cells, metabolism, growth
Answer:
Rock
Explanation:
Rock doesn't belong in the group because it's a non-living thing. It can't reproduce like cells do, it can grow (growth means ability to increase in size, height) and it can't undergo metabolism.
Describe how scientific investigations lead to new scientific questions.
Answer:
Scientific investigations produce evidence that helps answer questions and solve problems. If the evidence cannot provide answers or solutions, it may still be useful. It may lead to new questions or problems for investigation. As more knowledge is discovered, science advances.
5. A hungry person had a meal, after which the concentration of glucose and amino acids in the blood were determined. This was measured hourly as the blood passed through the hepatic portal vein and the iliac vein in the leg. The results were as shown in the table below. Time (Hrs) Concentration of contents Hepatic portal vein (Mg/100ml) Glucose Amino acids Glucose 85 1.0 1 85 1.0 85 140 1.0 125 1.5 3 130 1.5 110 3.0 4 110 1.5 90 5 90 3.0 90 6 90 2.0 90 7. 90 1.0 90 in Concentration of contents in the iliac vein of the leg (Mg/100ml) Amino acids 85 1.0 1.0 1.0 ou WNHO 2.0 1.0 1.0 a) Using the same axes draw graphs of concentration of glucose in the hepatic portal vein and the iliac vein in the leg against time (7mks) b) Account for the concentration of glucose in the hepatic portal vein from; i) 0-1 hour (2mks) ii) 1-2 hours (3mks)
Answer:
sorry for doing this but in my opinion doubt nut app is better then this
Answer:
wait im confuse?
Explanation:
Which variable responds to the changes of the independent variable? A-independent B-causation C-dependent D-Controlled
Answer:
The dependent variable
Explanation:
The independent variable is always changed by the scientist, and what happens then is known as the dependent variable because it depends on the indépendant variable!
When are temperature differences between urban and rural land greatest? Why?
Answer:
The temperature contrast from rural to urban areas is typically greatest during clear evenings with light winds. Rural areas cool off much faster at night than cities, as urban areas retain a lot of the heat stored in roads, buildings and other structures.
Explanation:
HELP!!! TIMED TEST!!! The chart shows four articles read by the students in a science class. Which claim has the greatest support?
A The Journal of Health: smoking can cause adverse effects on the lungs
B The Daily News: Vitamin supplements help increase food absorption.
C and D look untrustworthy.
Answer:
IT IS A I THINK
Explanation:
Which type of bonds form between the oxygen and hydrogen atoms of within a water
molecule
Answer:
covalent bonds
Explanation:
Covalent bonds occur when two atoms—in this case oxygen and hydrogen—share electrons with each other. Because oxygen and hydrogen attract the shared electrons unequally, each end of the V-shaped H2O molecule adopts a slightly different charge. The area around the oxygen is somewhat negative compared to the opposite, hydrogen-containing end of the molecule, which is slightly positive.
help pls
Many populations exhibit the following growth curve.
Which statement(s) below accurately are describing the growth as shown on the graph. NOTE: There is MORE THAN ONE correct answer. Choose ALL that apply.
Select 3 correct answer(s)
Question 5 options:
Phase B of the graph is showing a population that has reached its carrying capacity.
When both phases of the graph are looked at together, it shows logistical growth of a population after growing exponentially and reaching its carrying capacity .
Phase B of the graph is showing exponential growth only.
The entire graph shows two organisms competing for space.
Phase A of the graph is showing exponential growth only.
Many populations exhibit the following growth curve.. Here option 1, 2, 3 are correct which describe the growth. Phase B of the graph is showing a population that has reached its carrying capacity.
What is carrying capacity ?
The carrying capacity of the individual is the maximum number of population size of the species in a sustainable environment which is indefinitely reach up to the limit of no further growth.
Carrying refers to support and Capacity means it is the ability of an organism to reproduce the maximum output, when population reaches the limit of carrying capacity then the mortality will be greater than natality.
The importance of Carrying capacity is mainly focused on the concept of sustainability, imbalance in the environmental and Global warming which are the causative agent, eradication of poverty and practices are also increase the importance of carrying capacity.
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In the nitrogen cycle,which of the following conversions is carried out by nitrifying bacteria?
Answer:
Nitrifying bacteria carry out aerobic biological ammonia (NH3) oxidation to nitrate (NO3−) pls mark me branilest
Alien recipe virtual Arkansas
Answer:51
Explanation:
