Indicate whether the statement is true or false.
____ 1. Sources of genetic variation include mutation, recombination, and lateral gene transfer.
____ 2. A gene pool includes all alleles within a certain population.
____ 3. If a population is in Hardy-Weinberg, then it is not evolving.
____ 4. Recessive and dominant allele frequencies do not have to add up to 100%.
____ 5. Natural selection acts directily on genotypes.
____ 6. Isolations can be due to geographic, behavioral, or sensation barriers.
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____ 7. What type of curve is formed with a normal distribution?
a. steep curve c. punctuated curve
b. bell curve d. flat curve
____ 8. Natural selection acts directly on
a. alleles.
b. genes.
c. phenotypes.
d. mutations.
____ 9. What situation might develop in a population having some plants whose flowers open at midday and other
plants whose flowers open late in the day?
a. behavioral isolation
b. geographic isolation
c. temporal isolation
d. genetic drift
____ 10. Which of the following are assumptions that evolution is happening...
a. Very small population c. Selective mating
b. Mutations d. All of the above
____ 11. What commonly occurs after the bottleneck and founder effects?
a. gene flow c. genetic variation
b. genetic drift
____ 12. If an allele makes up one half of the frequency of a population’s allele for a given trait, its allele frequency is
a. 100 percent.
b. 75 percent.
c. 50 percent.
d. 4 percent.
____ 13. In a fox population, the allele frequency of a gene for red fur changes from 20 percent to 30 percent. What can
you say about that population of foxes?
a. The population is expanding.
b. The population is evolving.
c. The population is decreasing.
d. The population is not evolving.

Answers

Answer 1

Answer:

heres the answer

Explanation:

true, false, true, false, false, true,

d, c, b, b, a, c, b


Related Questions

how will cellular respiration affect oxygen levels

Answers

Answer:

Cellular respiration affects oxygen levels because cellular respiration removes oxygen from the atmosphere while oxygen levels puts it back but as carbon dioxide

Explanation:

I completed all my science courses already lol!

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HELP I NEED HELP ASAP
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HELP I NEED HELP ASAP

What is an effect of deforestation?

A. Increase in carbon dioxide in the atmosphere.
B. Decrease in the amount of water on Earth.
C. Decrease in rainwater runoff.
D. Decrease in carbon dioxide in the atmosphere.

Answers

Answer:

A

Explanation:

Deforestation is the cutting of trees. Trees like plants use photosynthesis for energy. Products of photosynthesis include carbon dioxide. When carbon dioxide is made the tree does not release it but when trees are cut down where does all of that carbon dioxide go? It gets released in to the atmosphere therefore the answer is A.

Why do most premature babies have breathing troubles?

Answers

Answer:

There premature so, its logical becuase they arent fully develeoped

Explanation:

As winter approaches some animals such as the ruby throated hummingbird respond with other animals such as chipmunks respond with

Answers

Answer: instinct, stimulus

Explanation: Im just that smart

Hummingbird responds to winter with migration, whereas Chipmunks responds to winter with hibernation.

What causes animals to hibernate or migrate?

Hibernation is the state that occurs in animals in which they enter a deep sleep in order to endure the freezing winter months and the lack of food. For example, Polar beer loses its activity throughout the cold months. The movement of birds from one location to another, either in search of food or as a response to changes in the weather, is referred to as migration.

When an animal is unable to migrate, it will either hibernate or employ some other method in order to secure food and shelter for itself. The state of hibernation is analogous to that of an extremely deep slumber. The animal's body temperature will begin to drop, and it will also experience a slowdown in both its heart rate and its breathing rate. This assists the animal in conserving its energy so that it can endure the winter.

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What happens when a population is in Hardy-Weinberg equilibrium?
O A. The total number of organisms in the population does not change.
B. The organisms with recefsive traits do not reproduce.
receresin
C. The distribution of alleles does not change from one generation to
the next
O D. The amount of immigration equals the amount of emigration.

Answers

Answer:

C. The distribution of alleles does not change from one generation to the next.

Which area is indicated in the diagram below? (5 points)
Оа
Thalamus
Ob
Pons
Oc
Cerebellum
Od
Brain stem

Answers

Answer:

Oa

Explanation:

Thalamus is the middle

The brain part represented in the diagram is thalamus.

What is brain?It is one of the most complex organs in our body.It controls various activities like: breathing, vision, memory, etc.It is divided into three parts: forebrain, midbrain and hindbrain.Forebrain consists: cerebrum, thalamus and hypothalamus.Hindbrain consists: cerebellum, medulla and pons.Midbrain is located between thalamus and pons.What is thalamus?It is located in the middle of brain and is a part of forebrain.The sensory information first gets processed in thalamus before being sent to the brain.

Hence, the correct answer is a. Thalamus.

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1. Which type of soil does Kenneth have?

Answers

Answer:

homie got dirt

Explanation:

A scientific _______ is an explanation based on many observations by many different researchers.

A scientific _______ is usually an explanation based on one observation by one researcher.
A.
theory; hypothesis
B.
deduction; inference
C.
hypothesis; theory
D.
inference; deduction

Answers

D is the answer

Inference is derived from many or different point of views while a deduction can be gotten or subtracted by one individual or researcher.

SOMEONE PLEASE HELP ME WITH THIS ILL GIVE YOU BRAINLY IF YOU GET IT RIGHT ALSO PLEASE EXPLAIN HOW YOU GOT THE ANSWERS !!!!

Answers

A. It’s a example of competition

Answer and Explanation:

The answer is A. These are examples of competition because the organisms are fighting for resources.

This is because both pairs of species are fighting for the same thing in order to live.

It is NOT:

B. because the passage was NOT saying that woodpeckers and squirrels are eaten by lions and cheetahs. They mention both of them, but they are mentioning the competition that each pair face.

C. Predation isn't taking each other's foods and homes, it is eating one another, and that isn't what is happening in the given situations.

D. This is incorrect because the species that doesn't get what they need are harmed because they don't have shelter or food to live, while the other helps itself to the food/shelter.

#teamtrees #PAW (Plant And Water)

PLEASE HELP ME! I HAVE NO BRAIN CELLS.

Some minerals are evenly distributed around the planet, while other minerals are quite rare. Why are some minerals so rare and unevenly distributed?


A. Certain minerals form only under high heat and pressure that develop near volcanoes.

B. Certain minerals form only in Earth's crust, so they are difficult to locate.

C. Certain minerals form only in specific climates, and not all climates, are the same around the world.

D. Certain minerals form only in the extreme heat found at the bottom of lakes and rivers.

Answers

Answer:

C

Explanation:

Minerals, fresh water, and biosphere resources are distributed unevenly around the planet as a result of past geologic processes. ... Mineral, fresh water, ocean, biosphere, and atmosphere resources are limited, and many are not renewable or replaceable over human lifetimes.

The option (C) is correct. Certain minerals form only in specific climates, and not all climates, are the same around the world.

What are minerals?

A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. Common minerals include quartz, feldspar, mica, amphibole, olivine, and calcite.

Moreover, the major minerals, which are used and stored in large quantities in the body, are calcium, chloride, magnesium, phosphorus, potassium, sodium, and sulfur. The trace minerals are just as vital to our health as the major minerals, but we don't need large amounts.

Therefore, economic minerals are used in a wide range of applications related to construction, manufacturing, agriculture and energy supply. Economic minerals include: Energy minerals used to produce electricity, fuel for transportation, heating for homes and offices and in the manufacture of plastics.

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SCIENCE WILL GIVE BRAINLIEST PLS HELP!
The process of evolution, or genetic change over time, has resulted in the wide variety of living things that exist today. What part do mutations play in the evolution of species
Group of answer choices

Some mutations are contagious and lethal, which can lead to the extinction of a population.

If the mutation is beneficial, it will become more prevalent in the population over time.

Any mutation may affect a gene pool that is already established.

Most mutations will spread quickly through a population, creating new species.

Answers

Answer:

4. Most mutations will spread quickly through a population, creating new species.

Explanation:

Answer:

Any mutation may affect a gene pool that is already established.

Explanation:

How does gene expression differ between human fibroblasts and induced pluripotent stem cells (iPS)?

Answers

Answer:

Both have different gene expression due to produce from different sources.

Explanation:

Gene expression is different between human fibroblasts and induced pluripotent stem cells because both cells are formed from different sources. Human fibroblasts is produced from ''mesenchyme'' a type of connective tissue whereas induced pluripotent are the stem cells which can be produced from adult cells so we can say that both have different gene expression.

Both have different gene expression due to produce from different sources.

The following information should be considered:

Gene expression is different between human fibroblasts and induced pluripotent stem cells since both cells are created from different sources. Human fibroblasts is generated from ''mesenchyme'' a type of connective tissue while on the other hand,  induced pluripotent are the stem cells that could be generated from adult cell.

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PLEASE ANSWER NOW
16
?
32.07
Based on the atomic number, what is the element?
A Germanium
B. Sulfur
C. Cadmium
D. Sodium

Answers

Answer:

The answer is B, Sulfur

Explanation:

The following list is to be entered into a Venn diagram, where the circles are labeled ABIOTIC and
BIOTIC
LIST
• Whale
• Clock
Water
Fish
• Paper
Glass
• Aluminum
Wooden Ruler
Sand
• Clouds
• Corpse
Snail
Steak
Pork Chops
Salad
Bread
• Finger Nails
Pipe
Cotton Fabric
Wool
Gold
Plastic
Grapes
Air
Plant
Hair

Answers

Answer:

whale is biotic

clock is abiotic

water is abiotic

fish is biotic

paper is both

glass is abiotic

aluminum is abiotic

wooden ruler is both

sand is abiotic

clouds is abiotic

corpse is both

snail is biotic

steak is both

pork chops is both

salad is abiotic

bread is abiotic

plant is biotic

hair is biotic

finger nails biotic

pipe abiotic

cotton fabric both

wool both

gold abiotic

plastic both

grapes abiotic

air abiotic

Biotic and abiotic factors interact with each other to form the ecosystem. Abiotic factors are the non-living things whereas biotic factors are the living things.

What are biotic and abiotic factors?

An ecosystem is made up of biotic and abiotic factors which interact with each other. Biotic factors include those organisms or things which are living and belong to a trophic level in a food cycle. The abiotic factors are those which are non-living but affect the survival of the biotic factors of the ecosystem.

Abiotic factors includes clock, water, paper, glass, aluminum, wooden ruler, sand, clouds, corpse, steak, pork chops, salad, bread, pipe, cotton fabric, wool, gold, plastic, grapes, air, etc.

Biotic factors include fish, whale, corpse, snail, plant, hair, finger nails, etc.

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Explain the consequences of altering a DNA base in the genome of an organism.

Answers

Answer:

Can be negative, neutral or positive change.

Explanation:

A negative change can result in diseases such as sickle cell anemia. This is because the amino acid that codon will code for changes.

A neutral change can result if the codon codes for the same amino acid as the original one.

A positive change can result if the new codon can express a beneficial phenotipic change. Something like having the body surviving on decreased amount of water or increased amounts of sodium is beneficial for organisms living near the equator.

Margo identified one of the climate zones by placing an orange circle marker on the world map. Which climate zone has Margo identified?

Answers

Note about the question:

You will find the world map in the attached files

Answer:

The climate zone that Margo identified belongs to the Tropical zone

Explanation:

There are three specific types of climate zones. From the equator to the poles, we can find the tropical zone, the temperate zone, and the polar zone.

The tropical zone spans from 0º (Equator) to approximately 23.5º latitude to each hemisphere, limited by Cancer and Capricorn tropics. This strip includes the area that Margo pointed in orange.

Tropical zones characterize by having humid and warm weather most of the year, the medium temperature that ranges 18-30ºC, abundant precipitation, variable dry seasons, perennial and evergreen vegetation near the equator, and decidual vegetation farther the equator, species richness. These are general characteristics that might vary depending on the region.

Answer: Tropical zone

Explanation:

How does factory farming impact workers, specifically undocumented people and people of color?

Answers

Answer:

Driven by rigid contracts set forth by their corporate partners, factory farms knowingly jeopardize workers' health in order to maximize profits. A large percentage of factory farm workers are black and brown peoples including migrant workers from Mexico and other parts of Latin America.

Explanation:

How do mountains affect the climate of a region?

(giving brainlist)

Answers

On the windward sides of mountain ranges, they raise precipitation. When they move toward land, they cause cold, moist air from the oceans to rise. On the leeward sides of mountain ranges, they reduce precipitation totals.

(Hope this helps!!!) Can I pls have a brainliest??

Answer:

As context, there are two sides of a mountain range:

A) The windward side

B) The leeward side

As mountains are tall, they block clouds which are in the troposphere. All the moisture thus falls onto the windward side, while almost none of the moisture from the rain gets to the leeward side.

In a nutshell, mountain ranges create barriers for precipitation which blocks off moisture to the leeward side, creating deserts.

This is why you see mountain ranges near deserts.

What is the main function of the reproductive system?
A. It creates hormones that regulate growth

B. It makes babies grow into teenagers

C. It allows organisms to create offspring- new babies

Answers

Answer:

C. It allows organisms to create offspring- new babies

Explanation:

Hope this helps

The reproductive strategy when hatchlings are able to move and
feed themselves​

Answers

Explanation:

Precocial development The reproductive strategy in which hatchlings of birds are able to move and feed themselves.

plz help me with this

Answers

Explanation:

A would be the correct answer

Select from the following list of statements all of the ways in which meiosis II differs from meiosis I. Check All That Apply Interkinesis doesn't involve the replication of chromosomes, whereas interphase does. Interkinesis doesn't involve the replication of chromosomes, whereas interphase does. Crossing-over doesn't occur in prophase II, whereas it does in prophase I. Crossing-over doesn't occur in prophase II, whereas it does in prophase I. Cells in meiosis II are haploid and cells in meiosis I are diploid. Cells in meiosis II are haploid and cells in meiosis I are diploid. Sister chromatids separate in anaphase II, whereas homologous chromosomes separate in anaphase I.

Answers

Answer:it’s all of them I just did that question and got it right

Explanation:

define ammonotelism?​

Answers

Answer:

It is the excretion of ammonia and ammonium ions

Calculate how long it will take for one full base pair mutation to occur. Explain your reasoning by constructing a mathematical equation.

Answers

Answer:

21 million years

Explanation:

Qual das alternativas abaixo nao corresponde a função da agua? Solvente. Mudança de temperatura. Não tranporta substâncias. Hidrólise

Answers

Paul I do not know your Spanish friends looking for attention everyone doesn't work so I'm not

Name 3 organisms that would be classified as eukaryotic multicellular and heterotroic

Answers

Answer:

PROTIST, FUNGI, PLANTS

Explanation:

The Protist Kingdom consists of mostly unicellular organisms that can have characteristics similar to plants, animals or fungi. Characteristics of Protists: mostly unicellular, few multicellular, eukaryotic, can be heterotrophic or autotrophic. Ex: algae, Paramecium, kelp (multicellular).

The three types of organism that would be classified as eukaryotic multicellular and heterotroic should be protist, fungi, and plants.

What is the Protist Kingdom?

It should treated as the unicellular organisms that contains the attributes,  similar kind of the plants, animals, or fungi.

The attribute of protists involved the unicellular, less multicellular, eukaryotic, heterotrophic or even autotrophic.

These organisms are classified together since they are made up of eukaryotic cells.

Therefore, the above should be considered as the protist, fungi, and plants.

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CAN MINERALS BE FORMED FROM ORGANIC MATERIALS?

Answers

Answer:

i dunno

Explanation:

i dunno

I WILL GIVE BRAINLIEST 100 points
After replication occurs, what form is DNA in? (it contains the original and a copy of the DNA in the form of an X)
A single chromosomes
B chromatin
C double chromosomes

Answers

The answer is b, chromatin

What percentage of our usable freshwater is already polluted?

Answers

Answer:

3% of the earth's water is fresh. 2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost. 0.5% of the earth's water is available fresh water

Explanation:

please give brainliest

Answer:

Water covers about 71% of the earth's surface.

326 million cubic miles of water on the planet

97% of the earth's water is found in the oceans (too salty for drinking, growing crops, and most industrial uses except cooling).

320 million cubic miles of water in the oceans

3% of the earth's water is fresh.

2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost.

0.5% of the earth's water is available fresh water.

If the world's water supply were only 100 liters (26 gallons), our usable water supply of fresh water would be only about 0.003 liter (one-half teaspoon).

In actuality, that amounts to an average of 8.4 million liters (2.2 million gallons) for each person on earth.

This supply is continually collected, purified, and distributed in the natural hydrologic (water) cycle.

Where Water is Found and the PercentageOceans97.2%Ice Caps/Glaciers2.0%Groundwater*0.62%Freshwater Lakes0.009%Inland seas/salt lakes0.008%Atmosphere0.001%Rivers0.0001%TOTAL99.8381%

How are fossil fuels taken from earth?

Answers

Answer:Extracting fossil fuels. There are two main methods for removing fossil fuels from the ground: mining and drilling. Mining is used to extract solid fossil fuels, such as coal, by digging, scraping, or otherwise exposing buried resources.

Explanation:

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