Construction of a new road system splits a population of a rare snail species into three sub- populations, J, K and L. Each of these populations is reproductively isolated.
The table shows the sizes of the three populations immediately after the building of the road
and again ten years later. DNA analysis was used to find:
p the relative frequency of the dominant allele of a gene
q the relative frequency of the recessive allele of this gene.
The three areas of habitat remained the same as each other over the ten year
immediately after road building
after 10 years
population p q size
1000 0.52 0.48 100 0.63 0.37 10 0.20 0.80
population p size
J 1000 0.50 K 100 0.49 L 10 0.40
q
0.50 0.51 0.60
Which statements are supported by this data?
Statement 1: Statement 2: Statement 3:
Natural selection is occurring in populations K and L.
The Founder Effect is strongest in population L.
The observed allele frequency changes result from genetic drift.
A. 1, 2 and 3 C. Only 2 and 3
B. Only 1 and 2 D. Only 1

Answers

Answer 1

Answer:

hey(not contact)...to their family since they went away

Explanation:


Related Questions

through _____ large molecules are formed

Answers

Answer:
Biological macromolecules
Hope this helps!

Answer:

Macromolecules

Explanation:

because they combine with covalent bonds

Small aquatic organisms, such as coral, are the producers of the ocean. Please select the best answer from the choices provided T F.

Answers

The marine invertebrates of phylum Cnidaria are called corals. Corals are important as they build reefs in oceans and feed on planktons.

The given statement is :

True

The position of corals can be explained as:

The corals are both a primary producer as well as the consumer.

They take energy from algae through the mutual relation between both organisms. The corals feed on planktons, zooplanktons and phytoplankton for energy so they are consumers.

The algae living in coral make food for them and corals produce oxygen.

Therefore, corals are producers.

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Answer:

T

Explanation:

Edge 2022 , trust the process

15. Which of the following is controlled by multiple genes and influenced by the environment? *
Codominant traits
Single gene traits
Polygenic traits
Incomplete dominant traits

Answers

Polygenic traits-more than one gene controls the trait, like height or skin color

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Metal Mass (9) Volume (cm) Gold 77.28 4.00 Platinum 64.35 3.00 Tungsten 96.75 5.00 Silver 63.00 6.00 29) A jeweler has selected a metal with a density of 19.35 g/cm' to make a ring. Which of the metals was selected?
A) Gold
B) Plantinum
C) Sliver
D) Tungsten ​

Answers

The answer is A) gold because 19.35 g/cm is the density

A model cell with damaged DNA was created to explain the importance of checkpoints in a cell cycle. The G2 checkpoint accidentally failed to work during experimentation. What do you think is the likely consequence of this failure?.

Answers

Answer: the consequenc of this failure is The cell continued to divide uncontrollably to create more damaged cells Which can lead to deadly diseases like cancer, breast cancer and many more

If the G2 checkpoint accidentally failed, then the cell will enter into division. The likely consequence of this failure is that the cell proliferates in an uncontrolled manner.

The cell cycle is controlled by checkpoints that regulate the progression through different phases of the cell cycle.

The G2 checkpoint acts to prevent the entry in mitosis of cells that have damages in its genetic material (DNA) in order to repair it.

When the cell undergoes failures in the G2 checkpoint control, the cell divides in an uncontrollable manner and thus generate groups of damaged cells (e.g., a tumor).

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In some cases, the spinal cord and associated structures of a newborn may be exposed. This abnormality is called a

Answers

Answer:

Spina bifida

Explanation:

Myelomeningocele is a severe type of spina bifida in which the membranes and the spinal nerves protrude at birth, forming a sac on the baby's back. The exposed nervous system may become infected, so prompt surgery is needed after birth

what is an accessory organ of the plant used in sexual reproduction

Answers

Calyx and corolla? I don’t know

Name one protein within the cell membrane and describe its function.

Answers

Junctions Proteins as well



Explain why some parts of a plant can act as both a source and a sink.

Answers

Answer:

Some organs are both a source and sink. Leaves are sinks when growing and sources when photosynthesizing. Rhizomes are sinks when growing but become sources in the spring when they provide energy for new growth.

hope this helps ☆☆☆

The leaves and rhizomes of the plant are found to act both as a source and a sink when growing and when they perform photosynthesis.

What are source and sink in plant?

Source organs are the organs which provide a net uptake of resources while sink organs are the organs which have a net drawdown of resources in the plant. Molecular mechanisms which are responsible for the regulation of the relationship between the sources and sinks. These molecular mechanisms include both the carbon and nitrogen-containing metabolites, plant hormones and genes.

Some organs in the plant are found to act both as a source and a sink. Leaves of the plant are sinks when growing and as source when photosynthesizing in the presence of sunlight during daytime. Rhizomes are the sinks when growing however they become sources in the spring season when they provide energy for the new growth.

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question is in picture

Answers

Answer:

it can show a population pyramid  They also show the number of dependents (children and, sometimes, elderly people) and general structure of the population at any given moment. it compares and contrast  the age of th female and male where it typically forms the shape of a pyramid when the population is growing which can give you a  general idea on both genders it can help see who (female or male) are the most type in that area

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Which of these is the process during which some of a plant’s cells become root cells, and other cells form the plant’s stem? Choose the correct answer.



meiosis

meiosis


mutation

mutation


homeostasis

homeostasis


differentiation

Answers

Differentiation

Explanation:

Itt is the process by which cells become different cells such root or stem cells. This is found in the stem cell and all plant cells have stem cells property.

During the differentiation, the cells change in the cell morphology, membrane potential , and metabolic activity

Therefore, Differentiation is the process by which some of a plants cells become root cells and other become stem cells.

MITOSIS
Complete the sentences below by circling or filling in the correct words.
Mitosis is cell division of (germ, somatic) cells. The purpose of mitosis is to create new cells for
and
Mitosis produces four (different, identical) cells that are (diploid,
haploid)

Answers

Answer:

Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells. Below we highlight the keys differences and similarities between the two types of cell division.

Explanation:

Involves one cell division?

Results in two daughter cells

Results in diploid? daughter cells? (chromosome? number remains the same as parent cell)

Daughter cells are genetically identical

Occurs in all organisms except viruses

Creates all body cells (somatic?) apart from the germ cells? (eggs and sperm)

Prophase is much shorter

No recombination/crossing over occurs in prophase.

 

In metaphase individual chromosomes (pairs of chromatids) line up along the equator.

During anaphase the sister chromatids are separated to opposite poles.

STUDY TIP 2

Find a comfortable place to study with good lighting and few distractions. Avoid studying in bed, as it will be too tempting to take a nap.

FOLLOW FOR MORE​

Answers

Answer:

thanks for the tip very important

What factors could decrease the rate of photosynthesis in a plant?

Answers

Answer:  light intensity, carbon dioxide concentration and temperature i think- maybe

Explanation:

Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide, Increasing the light intensity will boost the rate of photosynthesis and for carbon dioxide even if there is plenty of light, the plant cant photosynthesise if there is insufficient carbon dioxide. and why temperature is because if it gets too cold the rate of photosynthesis will decrease, Plants cant photosynthesise if it gets too hot either

what types of solute molecules may be moved by facilitated diffiusion

Answers

Explanation:

Facilitated diffusion therefore allows polar and charged molecules, such as carbohydrates, amino acids, nucleosides, and ions, to cross the plasma membrane. Two classes of proteins that mediate facilitated diffusion are generally distinguished: carrier proteins and channel proteins.

As a metal, lithium will lose electrons to have a ful valence shell. How manyvalence electrons will it lose to have full valence shell? What will be the charge of the lithium ion?

please help me​

Answers

Answer:

It will lose 1 electron

Its charge will be 1+, or simply (+)

Explanation:

Lithium it's located in the group one of the periodic table, the Alkali, and by rule, all Alkali are always gonna loose one electron during a chemical reaction to form a positive ion.

The charge is explained by the fact that, if lithium looses one electron, then it wi have less number of electrons than protons, meaning that, if there's a higher number of protons (positive charge), then the charge will be positive. And since the atom loosed one electron then its charge will be 1+

For example, during a chemical reaction calcium is always gonna loose 2 electrons, so its charge's gonna be Ca2+

what is the role of the beaver in its ecosystems?
a) it is a foundation species and the main source of food for the natural predators of its ecosystems.
b) it is a keystone species that modifies its natural environment by damming streams to form wetlands
c) it is a dominant species, as it has the greatest number of individuals among all the mammalian species of its ecosystem
d) it is an endangered species as it has the least number of individuals among all the mammalian species of its ecosystem

Answers

Answer:

B)

Explanation:

What is the role of transport proteins in the cell membrane

Answers

Explanation:

Membrane transport proteins fulfill an essential function in every living cell by catalyzing the translocation of solutes, including ions, neurotransmitters, and numerous drugs across biological membranes

Can someone plz help me? :(

Answers

Answer:

Probably  A or B

Explanation:

A because it lets in and out things

23. Where are earthquakes most likely to
occur?
A where Earth's tectonic plates are
moving together
B where
magma cools slowly beneath
Earth's surface
C where Earth's lithosphere is in
constant, slow motion
D where Earth's seafloor is spreading
into deep ocean trenches

Answers

Answer:

D where Earth's seafloor is spreading into deep ocean trenches

Explanation:

Over 80 per cent of large earthquakes occur around the edges of the Pacific Ocean, an area known as the 'Ring of Fire'; this where the Pacific plate is being subducted beneath the surrounding plates. The Ring of Fire is the most seismically and volcanically active zone in the world.

where in the bone are red blood cells made?
periosteum
compact bone
spongy bone
joint capsule

Answers

Answer:

red blood cells or formed in the red bone marrow of bones

which type of connective tissue has a mineralized different matrix?

Answers

Answer:

Bone

Explanation:

citer le type de mémoire perturbée par le T H C c,est un dm note reponse.​

Answers

hindi ko po gets sasagutan po ba yan

ribosomes contain three discrete sites where trnas bind and the polypeptide is synthesized. these are called site (a site), site (p site), and site (e site).

Answers

Answer:

Each ribosomal subunit has three binding sites for tRNA: designated the A (aminoacyl) site, which accepts the incoming aminoacylated tRNA; P (peptidyl) site, which holds the tRNA with the nascent peptide chain; and E (exit) site, which holds the

Explanation:

Each ribosomal subunit has three binding sites for tRNA: designated the A (aminoacyl) site, which accepts the incoming aminoacylated tRNA; P (peptidyl) site, which holds the tRNA with the nascent peptide chain; and E (exit) site, which holds the

Identify the tree main parts of the model, and the four spheres that are used to organise concepts in two of these parts?

Answers

Answer:

Lithosphere, hydrosphere, atmosphere

Explanation:

The name of each of these sphere come from the Greek word that describe what they are made of ,Geo, for ground, hydro for water,bio

In which biological event is chemical energy transformed into mechanical energy?
O muscular movement
O
photosynthesis
O bioluminescence

Answers

Muscular movement is the correct answer

The event in which the chemical energy transformed into mechanical energy is muscular movement. The correct option is A.

What is muscular movement?

Muscles contract and then relax to move body parts. Muscles can pull bones, and yet they can't push them back into position.

As a result, they function in pairs of flexors and extensors. To flex a limb at a joint, the flexor contracts.

We discussed the skeletal system and the gestures that can take place at joints, such as flexion, extension, abduction, inversion, and so on.

These movements are produced by skeletal muscles pulling bones in different directions.

When ATP is hydrolyzed during cross-bridge cycling, chemical energy is converted to mechanical energy during muscle contraction.

As the muscle deforms or performs external work, this mechanical energy is distributed and stored in the tissue.

Thus, the correct option is A.

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what are all the decomposers in the ocean?

Answers

Answer:

crustaceans and mollusks, bacteria, fungi, sea cucumbers, starfish, sea urchins, and other kinds of marine worms.

Explanation:

Overall, the main decomposer organisms in marine ecosystems are bacteria. Other important decomposers are fungi, marine worms, echinoderms, crustaceans and mollusks. In the colder ocean waters, only bacteria and fungi do the decomposing because the other creatures cannot survive in the extreme condition

5.5% of the _____ is covered in ice

Answers

Answer:

5.5% of the earth is covered in ice?

brainliest please!

What happens during photosynthesis?
a. Autotrophs consume sugars
b. Autotrophs produce sugars
c. Heterotrophs produce ATP.
d. Heterotrophs consume ATP.

Answers

Answer:

Answer is option a. Autotrophs consume sugars

Explanation:

If you like my answer than please mark me brainliest thanks

The answer is: B - Autotrophs produce sugars.

Enlist any five properties of metals.f
our points

Answers

Answer:

1. Hard

2. Malleable

3. Ductile

4. Good electrical conductor

5. High melting point

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