Answer:
differential survival ( more info below)
Explanation:
Natural selection is the differential survival and reproduction of individuals due to variations in phenotypes. This is a central process of evolution, a transition in the heritage characteristics characteristic of the population over centuries. Variation exists in all populations of organisms.
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HELPPP ASAPP!!!! 20 POINTS!!!!
The table below provides the number of chromosomes found in the body cells of various types of organisms.
Diploid Chromosome Number
Fruit Fly
8
Human
46
Goldfish
94
Which of the following is the best explanation for why the chromosome numbers above are all even?
A.) The diploid chromosome number represents two sets of chromosomes, one from each parent, so it is always an even number.
B.) Animal cells always have an even number of chromosomes, and plant cells always have an odd number of chromosomes.
C.) The diploid chromosome number is always even to ensure that equal numbers of chromosomes end up in each daughter cell during meiosis.
D.) The number of chromosomes present in a diploid cell doubles for each generation because there are two parents.
Answer:
A
Explanation:
I took the exam and got a 100.
what are the three processes are methods of genetic recombination?
Answer:
The three processes are independent assortment, crossing over, and fertilization. Explanation: The process of the generation of offspring that exhibits the combinations of traits, which varies from those found in either of the parents is known as genetic recombination.
What are two factors in the atmosphere that can change the shape of
landforms?
Answer:
water action and wind action
Explanation:
There are two main causes of change to be mentioned here and they are water action and wind action. The processes used by these actions are known as Weathering and Erosion.
1. A reaction that can be used to build ATP is best classified as
A. Organic
B. Exergonic
C. Enzymatic
D. Endergonic
Which of the following process does not contribute to the loss of biomass in an ecosystem?
A. Excretion C. Photosynthesis
B. Respiration D. ingestion
Answer:
D
Explanation:
because if you think about it it ingestions it
Which of the following actions would help ensure safety in a biology laboratory? keeping personal belongings on top of the lab table trying a piece of equipment until you get it to work discussing the football game while you do the lab being serious and attentive throughout the lab activity
Answer:
being serious and attentive throughout the lab activity
Explanation:
I don't thinj it needs an explanation. You just have to think logically.
Answer:
D
Explanation:
What Describes The primary function of the nervous system in keeping the body in homoestasis ?
Answer:
It processes the environment and sends out signals. It controls movement and provides structure. I hope this helps! :)
Explanation:
An earthquake occurred at 6:35:10 am. At what time did the S-wave arrive at a seismic station 4000 km away?
Answer: Around 6:55:40 Am
Explanation:
The velocity of the S wave may depend on the density of the ground.
The speed can go from 1km/s to 8km/s, with an average velocity of 3.25km/s
Now, we can use the equation:
Velocity = distance/time.
Time = distance/velocity.
We have distance = 4000km
and velocity = 3.25km/s
time = 4000km/3.25km/s = 1230.77 seconds.
now, a minute has 60 seconds, so this is:
1230.77/60 = 20.5 minutes. or 20 minutes and 30 seconds
So the earthquake will reach the seismic station around
6:35:10 + 0:20:30 Am
6:55:40 Am
Which pair of molecules both contain carbon atoms?
Answer:
A
Explanation:
Which actions could be categorized in the
"aerobic" section of the Venn diagram?
Check all that apply
consists of three stages
yields 36 ATP molecules
does not require oxygen
0 produces lactic acid
O starts process with a glucose molecule
Answer:
A.
B.
E.
Explanation:
Aerobic respiration will yields 36 ATP molecules and starts with the process of glucose molecules.
What is Aerobic respiration?The respiration in which glucose molecules produces energy in the form of ATP is called aerobic respiration.
The aerobic respiration produces 36 ATP molecules. Fermentation will produce lactic acid. Aerobic respiration consists of three stages such as glycolysis, ETC cycle.
The conversion of fuel, such as fats and sugars, into chemical energy is known as aerobic respiration. Anaerobic respiration, in contrast, doesn't require oxygen.
Therefore, Aerobic respiration will yields 36 ATP molecules and starts with the process of glucose molecules.
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Match each checkpoint with the action it checks for.
Answer:
hope this helps you! :)
A nucleotide does not contain
a. a 5-carbon sugar.
b. an amino acid.
c. a nitrogen base.
d. a phosphate group.
Answer:
b.) an amino acid.
Explanation:
A nucleotide contains three things:
a 5-carbon sugar a nitrogenous basea phosphate groupSince amino acids are not on this list, the correct answer is b.
A nucleotide does not contain a amino acid.
What are nucleotides?Nucleotides are organic molecules consisting of a nucleoside and a phosphate. They serve as monomeric units of the nucleic acid polymers – deoxyribonucleic acid and ribonucleic acid, both of which are essential biomolecules within all life-forms on Earth.
Moreover, a nucleotide is the basic building block of nucleic acids (RNA and DNA). A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T).
Therefore, DNA and RNA are polynucleotides, which contain a chain of nucleotides monomers with different nitrogenous bases. Nucleotides are essential for carrying out metabolic and physiological activities.
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Choose which way of evolution caused the FQ antibiotic resistance.
Answer:
Antibiotic resistance is an act of evolution via natural selection. The antibiotic action is an environmental pressure: those bacteria which have mutation allowing them to survive and re-produce
Explanation:
A variation in the properties of an organism over a period of time is called evolution.
Antibiotic resistance can transpire naturally or due to progression.
This type of endurance occurs so that the bacteria can persist and proliferate in the changed conditions.
Fluoroquinolones (FQ) modify the enzymes like DNA gyrase and topoisomerase IV.
The bacteria in order to survive from this antibiotic adapted mechanism so that the use of antibiotics would not hinder their reproduction mode and hence they will be able to survive.
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Down Syndrome is caused by trisomy 21.
True or false
Answer:
I think it's true, I'm not a hundred percent sure tho
which abiotic factor is found in a desert?
A. a top predator
B. a snake
C. a primary consumer
D. none of the above
An abiotic factor is something that is not living. In this case, all of the factors are biotic, so the correct answer would be D-- none of the above.
among these abiotic factor found in a desert are none of the above
Abiotic Factors :
abiotic factors are all non-living factors in an organism's environment. Precipitation, water availability, sunlight, and temperature are all abiotic factors.
Biotic Factors:biotic factors are all the living things in an ecosystem. All the examples given here like a top predator, a snake, a primary consumer all are living things so can't be abiotic.
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What's the difference between skin infections and rashes?
Answer:
rashes is caused by heat while skin infection is caused by bacteria and infection
Answer:
A skin disease might be mellow or genuine. Skin diseases are not quite the same as rashes. A rash is a zone of swollen or disturbed skin
What happens in the condensation part of the water cycle?
Answer:
Condensation is the opposite of evaporation. It is when water molecules in the air, which are in gas form, cool and accumulate into liquid form. In the air, this is the formation of clouds and sometimes you can see condensation on your water bottle in the summer if it has a cold liquid inside. When the hotter water molecules in the air touch the bottle, it is cooled and shifts to its liquid form. When clouds accumulate enough water droplets, they become too heavy to stay in the air and fall to the earth as rain, snow, hail, etc.
Explanation:
Answer:
Condensation is the opposite of evaporation. It is when water molecules in the air, which are in gas form, cool and accumulate into liquid form. In the air, this is the formation of clouds and sometimes you can see condensation on your water bottle in the summer if it has a cold liquid inside. When the hotter water molecules in the air touch the bottle, it is cooled and shifts to its liquid form. When clouds accumulate enough water droplets, they become too heavy to stay in the air and fall to the earth as rain, snow, hail, etc.
Write the definitions of the following terms.
Cell
Tissue
Organ
Organ system
Answer:
The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known organisms. A cell is the smallest unit of life. Cells are often called the "building blocks of life". The study of cells is called cell biology, cellular biology, or cytology.
In biology, tissue is a cellular organizational level between cells and a complete organ. A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissue
In music, the organ is a keyboard instrument of one or more pipe divisions or other means for producing tones, each played with its own keyboard, played either with the hands on a keyboard or with the feet using pedals
An organ system is a group of organs that work together as a biological system to perform one or more functions. Each organ does a particular job in the body, and is made up of distinct tissues.
Explanation:
i found on the internet:)
B. VERY SHORT-ANSWER QUESTIONS: Give one-word a
1. What is the study of microorganisms known as?
2. Microbes are disease-causing microorganisms. True or false
3. All fungi are unicellular. True or false?
Answer:
1. Microbiology
2. True
3. false
The scientific explanation for global warming is very dependent on the _______ atom. a. chlorine b. carbon c. oxygen d. hydrogen Please select the best answer from the choices provided A B C D
Answer:
B. carbon
Explanation:
edge 2020
The scientific explanation for global warming is very dependent on the carbon atom as the majority of emissions contain compounds of carbon.
What is an atom?An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
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What is one reason why the abundance of angiosperms could have helped small mammals be successful and produce more offspring?
Answer:
The reason why the abundance of the mammals be successful is that it provides food and oxygen for the survival of the mammals.
These plants also attract the mammals which helps in mating of the animals and producing more offspring.
A healthy animal will only lead to the producing more healthy offspring and by getting proper food the animals will produce successful offspring.
1
2
5
6
7
What is the most important reason to control the conditions of an experiment?
O to make the experiment easier to repeat
O to reduce the amount of data that must be recorded
O because this is necessary for graphing the data
because this is necessary for the data to be valid
Answer: to make the experiment easier to repeat
Explanation:
Which of these is a disadvantage of hydroelectric energy ?
A. Is expensive to build or maintain
B. Has high power plant efficiency
C. Has a long power plant life span
D. Reduces greenhouse gas emissions
Answer:
A. Is expensive to build or maintain
Explanation:
Hydroelectric energy is a type of energy which is generated from the flow of water. In this energy, water is allowed to fall from a certain height on the turbine. The moving of turbine produces energy. The main disadvantage of hydroelectric energy is that it is very expensive and require high amount of money for the construction and maintenance of hydroelectric power plant. The machinery used for the production of hydroelectric energy is very costly.
What are the three parts of observation ?
I’m horrible with genetics
Help is greatly appreciated!
Answer:
1st Q: a hairless body
2nd Q: Green body feathers
Explanation:
The paragraphs answer the questions because its asking for the phenotype (the physical characteristics) if it were asking for the allele combination it would be "bb" for the first question and "BB" for the second question.
Describe how natural selection impacts the evolution of organisms
Answer:
Natural selection is the process through which populations of living organisms adapt and change. Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth.
Explanation: I hope this is right?
What are 3 pros and cons of fracking?
Please help and thank you
Answer:
3 Pros and 3 cons
Explanation:
Pros:
The fracking process has reduced the need of coal in the United States. There is a relatively low amount of water intensity used - Compared to nuclear energy this requires up to 1000 times less energy. Fracking wells are not permanent- Drilling operations eventually stop.Cons:
The clear consequences for Fracking on the environment are not yet known. This process is often known to leak methane. The lower prices for fossil fuels causing more people to use them - This is really bad for the environment.Help please
Luminosity is the amount of energy emitted by a star each second. Stars radiate light over a broad range of frequencies in the electromagnetic spectrum, from the low energy radio waves to high energy gamma rays. The luminosity of a star depends on two factors:
A) age and surface area.
B) surface area and temperature.
C) gravity and distance from Earth.
D) distance from Earth and temperature.
Answer:
b
Explanation:
Analyze whether the tiger is at the same level and whether it obtains the same amount of energy in both the food chains.
Answer:
No, the tiger is not at the same level in the food chain.
Explanation:
There are two different food chains in this example: 1. Spinach --> goat --> human --> tiger 2. Spinach --> goat --> tiger.
In the first example, tiger is a tertiary consumer because it feed on secondary consumer that is human which feeds on primary consumer, while in the second example, the tiger is secondary consumer because it feeds on primary consumer that is goat which feeds on producer. In the food chain, there are different trophic levels are present such as producer, primary consumer, secondary consumer and tertiary consumer etc. Some animals act as both secondary and tertiary consumer. In these two examples, tiger act as both secondary and tertiary consumer.
After asking a question, a scientist can form a(n) blank
, which is an idea that may be proved or disproved by an experiment.
Answer:
hypothesis
Explanation:
Answer:
hypothesis
Explanation:
