Answer:
Genetic variation occurs because beneficial traits exist in a collection of genes, and gene flow makes these traits more prevalent in populations.
Further explanation
Genetic diversity is a level of biodiversity that refers to the total amount of genetic variation in the whole species that inhabits some or all of the earth's surface that can be inhabited.
Genetic diversity uses several simple measurements:
Gene diversity is the proportion of polymorphic loci throughout the genome.
Heterozygosity is the average number of individuals with polymorphic loci.
Alleles per locus, also used to demonstrate variability.
What kind of relationship do these
bacteria and humans have?
a. Commensalism
b. Mutualism
c. Parasitism
d. Predation
Answer:
a.commenslism
Explanation:
hope it helps
List ten adaptions that pinus plants display that allows them to survive a terrestrial model of life
Answer:
1) Growth Pattern
2) Conical Shape
3) Needle-shaped leaves
4) Pine needles
5) Waxy coating
6) Chemicals
7) Dark-colored needles
8) Thick bark
9) Ever growing roots
10) Small surface area of pine needles
Explanation:
Pinus plants are coniferous plants that are evergreen and long lived. They are usually found in the Northern Hemisphere and few parts of the Southern Hemisphere. Their adaptations include;
1) Growth Pattern: Pinus plants grow very closely to each other, creating a dense setting that helps to preserve warmth.
2) Conical Shape: Their conical shape helps them shed off snow and helps them produce enough food through photosynthesis by staying green all year.
3) Needle-shaped leaves: This helps reduce moisture loss.
4) Pine needles: This reduces moisture loss through transpiration.
5) Waxy coating: The waxy coating of their pine needles protect them from harsh weather like drying winds. It also protects them from sap that cause may freeze.
6) Chemicals: The chemicals present prevent wildlife from eating them.
7) Dark-colored needles: This helps them absorb heat from the sun
8) Thick bark: Protects against cold
9) Ever growing roots: Their roots do not stop growing even in winter so there is always moist and nutrients.
10) Small surface area of pine needles: Their small surface area helps in moisture retention.
Bison have come close to extinction due
to uncontrolled hunting, drought, and
disease. There is now very
little
genetic variation in bison
populations.
Which of the following is a result of the
limited genetic variation in the
current bison populations compared
to earlier bison populations with
more variation?
Select one:
O a. Bison in current populations are more resistant to new
diseases.
O b. The survival rate of young bison has increased in current
populations
O c. Bison in current populations are less able to interbreed with
other species
O d. The current bison populations are less likely to be able to
adapt to environmental changes.
Answer:
D.
Explanation:
Genetic variation among species is a result of adaptation to new environments, and the lack of genetic varition among bison species means that they are less likely to adapt to different environmnetal changes. this might be due to bison staying in a particular areas to not be hunted or ridden by disease.
In this part of the laboratory exercise, you will learn how to read a weather station model. Using your Earth Science Reference Tables, fill in the data tables below each station model.
Answer:
welp, hope he helps you sir!
Explanation:
1. Which weather station model above would most likely have snow? ___________
2. Which weather station model above would most likely have rain? ____________
3. Which weather station above has the highest air pressure? ____________
4. Which weather station model above has the highest wind speed?_________
Answer:
1. Station B
Station B has one of the lowest temperatures of 32°F(top left) which is a temperature that snow can form at. It also has full cloud cover which is something that station C does not have and as clouds are needed for snow, station B is most likely to have snow.
2. Station A
Station A has the highest dew point at 75 (bottom left) which means that it has the highest humidity and so is the most likely to have rain. That along with a full cloud cover (shaded circle), means there are clouds for rain to fall from.
3. Station B
Has the highest pressure at 998.
4. Station C
Wind speed is measured by the lines protruding from the circle and for this simplistic model, the more lines it has, the faster the wind is going. Station C therefore has the fastest wind speed.
:) What does the abbreviation "mya" for?
In science, it mean 'Million Years Ago'
It could also be used in astrology and biology
Answer: It stands for Million Years Ago
Explanation:
Which of the following contributes to the diversity of an ecosystem?
Increased keystone species
Reduced species richness
Increased invasive species
Increased foundation species
Answer:
Increased keystone species
Explanation:
An organism is a keystone species when it contributes to the definition of a given ecosystem such that the absence of the keystone species in an ecosystem, the ecosystem will change dramatically or be gradually wiped out
The effect of the keystone on its environment is unevenly large when compared to its abundance relative among other organisms within the ecosystem
The keystone is therefore, a prime source of balance of nature, diversity and well-being of the ecosystem
Therefore, the option that contributes to the diversity of the ecosystem is;
Increased keystone species.
An important difference between a series and a parallel circuit is that a series circuit cannot have any breaks. A parallel circuit can have a break in one branch and the current can still flow through another branch.
Answer:
Yes.
Explanation:
Parallel circuit are those types of circuits in which break in one branch does not prevent the flow of current in the circuit and the current can still flow through another branch because there are more ways through which the current moves to other sources while on the other hand, series circuit refers to those circuits in which break in one branch can prevent the current flow in the circuit and the other sources can't receive current due to broken of the connection.
All of foods we eat comes either directly or indirectly from plants ? True or false
Answer:
true
Explanation:
it is
help please will mark brainlist answer
Answer:
Question 2 is option 2. It is the only one that makes sense and it says sediment sin it.
Explanation:
1. Define nutrients List the nutrients present in the food.
Answer:
Nutrients are compounds in foods essential to life and health, providing us with energy, the building blocks for repair and growth and substances necessary to regulate chemical processes.
There are six major nutrients: Carbohydrates (CHO), Lipids (fats), Proteins, Vitamins, Minerals, Water.
What is the diaphragm? Please help!
A. muscle
B. tendon
C. cartilage
D. ligament
Answer:
A
Explanation:
because
Answer:
A.muscle
Explanation:
It's the muscle below our lungs
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One scientist kept 20 grams of a radioactive material in a container. What will be the mass of the radioactive material left in the container after 2 half lives? (10 points)
Group of answer choices
4 grams
5 grams
10 grams
40 grams
Answer:
It's 5 grams
Explanation:
After 2 half lives that would mean a quarter of the original, because one half times one half is one fourth. 20 times one fourth is 5 grams.
The wing of a bird and the leg of a horse are very different looking structures. Although they look different, bird wings and horse legs are very similar in the arrangement of the bones that make up the limb. Which term is used by scientists to describe structures that look different on the outside but are actually similar in construction and develop from the same embryonic tissues? es -0) A) common descent B) analogous structures vestigial structures D) homologous structures Answer:
Answer: Homologous structures
Explanation: They are structures which have similarities in various organisms but carry out opposite functions. This is the opposite of analogous structures
What is the purpose of an outline?
to list the main topics and show the order they will appear in
to show the number of sentences in each paragraph
to help you remember key words about your topic
Answer: to list the main topics and show the order they will appear in
Explanation: Outlines are intended to help a person organize a paper and help the paper flow well.
Answer:
to list the main topics and show the order they will appear in
Explanation:
if a parent cell starts with 22 chromosomes how many chromosomes will each daughter cell have after mitosis
Answer:
For mitosis, the DNA content of the daughter cells and the mother cell will always be identical. Since the number of cells have doubled, so has the DNA. The 16 chromosomes in the mother cell will be duplicated, then the duplicates split and evenly divided into the daughter cells. The 16 chromosomes in each daughter cell will be non-duplicated at first.
Explanation:
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Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell.
What is mitosis?
The division of a cell of the body that results in two cells, each with the same number of chromosomes as the original cell.
What is daughter cell?
The daughter cells from mitosis are called diploid cells. Diploid cells have two complete sets of chromosomes.
To learn more about Mitosis here
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ecosystem contain both blank and blank parts
Explanation:
Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts.
Every ecosystem contains both biotic and abiotic components, such as the biotic component, which contains the living forms such as the animal and the plant, and the non-living components, which are called the abiotic component.
What role does the ecosystem play on Earth?There are numerous ecosystems on Earth, each with its own set of functions and living forms, but these are essential for human survival as they support a wide variety of plant and animal species, thus maintaining the biodiversity of the earth. By absorbing and storing carbon, forests, oceans, and wetlands help to regulate the earth's climate by managing the carbon cycle and regulating the climate.
Hence, every ecosystem contains both biotic and abiotic components, such as the biotic component, which contains the living forms such as the animal and the plant, and the non-living components, which are called the abiotic component.
Learn more about the ecosystem here.
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Explain why Fossil Fuels are good and bad? Give an example.
Answer:
it can cause environmental pollution but at the same time it reuses any excess waste from coal, oil etc.
how is DNA changed to make a Genetically Modified organism.
Answer:
GM is a technology that involves inserting DNA into the genome of an organism. To produce a GM plant, new DNA is transferred into plant cells. Usually, the cells are then grown in tissue culture where they develop into plants. The seeds produced by these plants will inherit the new DNA.
Explanation:
Please help due soon! Will mark brainlist
Answer:
Answers are in the image
Which kingdom would a species be classified in if it has a nucleus, cell walls and
chloroplasts, gets energy through photosynthesis, and is an autotroph?
A.Protista
B.Fungi
C.Plants
D.Animals
Answer:
C. Plants
Explanation:
Taxonomy can be defined as the process of naming, classification and description of living organisms such as plants and animals, based on similarities or characteristics e.g eyes, number of legs, etc.,
The eight (8) biological classification (taxonomy) used for grouping and organizing organisms are; Kingdom, Domain, Phylum, Family, Order, Class, Species and Genus.
Additionally, the three (3) domain in which living organisms can be classified are: Bacteria, Eukaryote, and Archaea.
Thus, taxonomy helps scientist to have a good understanding and knowledge when studying various organisms.
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.
A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
In Biology, producers are the living organisms that are capable of manufacturing their own food and as such can provide energy or food for the other living organisms (consumers) in a food chain.
A producer gets energy from the sun and converts it into food. The cells found in producers are capable of converting the energy received directly from the sun into food through a process generally referred to as photosynthesis, converting carbon dioxide from the air, water from the soil, minerals and energy from the sun into organic nutrients.
In the ecosystem, producers are autotrophs or self-feeders such as plants.
Hence, the kingdom in which a species would be classified in if it has a nucleus, cell walls and chloroplasts, gets energy through photosynthesis, and is an autotroph is the plant kingdom (Plantae).
Answer:
C. Plants
Explanation:
Plants are multicellular and most don't move, although gametes of some plants move using cilia or flagella. Organelles including nucleus, chloroplasts are present, and cell walls are present. Nutrients are acquired by photosynthesis (they all require sunlight).
Select four ways bacteria growth is controlled.
food irradiation
boiling
freezing
refrigeration
canning
harvesting methods
fertilizer
Answer:
boiling, freezing, refridgeration, and fertilizer.
Explanation:
the first three have to do with temperature, which tends to kill bacteria. Pesticides kill bacteria by poisoning them
Replication is said to be semi-conservative. What does this mean about the chain being made?
Half is_______________________________, the other half is_________ __________
Answer:
Explanation: Replication is a semiconsecutive process this means that the strands of the DNA molecule separate to form two separate templates which will then combine with nucleotides following the complementarity base sequence to form two new daughter DNA
Someone help!! will mark reasonable stuff brainliest!
Answer:
this is called revolution ( when the sun gives light to the earth it takes a step closer to revolution were season of the year appear )
A culture of living cells includes a solution called a _____.
A) concentration
B) slide
C) flask
D)medium
Answer:
D)Medium
Explanation:
A culture of living cells is grown over a solution that is called as a growth medium. A growth or culture medium can be in the form of solid, semi-solid or liquid. It is typically designed to facilitate the growth of the living cells of plants, animals, humans and microbes.
Which gas was most likely not present in creating the amino acids of early Earth's waters of the past?
ammonia
sulfur
hydrogen
nitrogen
Answer: the answer is sulfur.
Explanation: I took the test
An organism's appearance, trait or other detectable characteristic is a what?
[tex]\huge{ \mathfrak{ \underline{question : }}}[/tex]
An organism's appearance, trait or other detectable characteristic is a what?
[tex]\huge{ \mathfrak{ \underline{ Answer \: \: ✓ }}}[/tex]
The Organism's Phenotype is it's appearance or visible trait.
[tex]\#TeeNForeveR [/tex]
What is the scale that
measures the strength of an
earthquake
Answer: The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes.
Answer:
The Richter scale measures the largest wiggle (amplitude) on the recording, but other magnitude scales measure different parts of the earthquake. The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes.
Explanation:
Name:
133
Unit 10 & 11 RETEST: Expressions &
Equations
Knowledge - Parts of equations and expressions.
13
1. Label each as either an equation or an expression.
a) 5x - 3 = 12
b) 6x - 3
c) 7x + 5 = 9
2. Label each part of the equation. (numerical coefficient, variable, constant term.
What are the math questions
5x-3=12
6x-3
7x+5=9
Are they an equation or expressions?
Explanation:
To find - 1. Label each as either an equation or an expression.
a) 5x - 3 = 12
b) 6x - 3
c) 7x + 5 = 9
2. Label each part of the equation. (numerical coefficient, variable, constant term.
What are the math questions
5x-3=12
6x-3
7x+5=9
Are they an equation or expressions?
Solution -
1.
An expression containing variables, numbers, and symbols.
An equation that has equal to sign.
a.)
5x - 3 = 12
It is an equation (because it has = sign)
b.)
6x - 3
It is an expression
c.)
7x + 5 = 9
It is an equation (because it has = sign)
2.
Variable is those whose values can be change. For example x, y, z...
Constant term whose values are fixed. For example 10, 4, 5
Numerical coefficient are the constants that placed just before the variable. For example in 4x- 4 is the variable coefficient.
a.)
5x-3=12
5 is Numerical Coefficient
12 and -3 is constant term
x is variable
b.)
6x-3
6 is Numerical Coefficient
-3 is constant term
x is variable
c.)
7x+5=9
7 is Numerical Coefficient
9 and 5 is constant term
x is variable
What do you think ecological succession is?