Answer:
2
Explanation:
edge 2021
The type of selection that occurs when a population experiences a shift in diversity toward the larger organisms is a directional selection.
What is a selection?It is a phenomenon by which some organisms have better advantage at surviving than the others of the same species.These organisms prevail and are reproductively more successful than the others.What is a directional selection?It is the type of selection in which an extreme phenotype is selected and the rest are at a disadvantage."The allele frequency is shifted in the direction of that phenotype.What is a disruptive selection?It is the type of selection in which both the extreme phenotypes are favored than the others.
What is a stabilizing selection?It is the opposite of directional selection.In this the mean phenotype is selected and the extreme phenotypes are not.To learn more about phenotypes, selection, directional selection and population here,
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determine the gender (male or female) and health of her unborn child.
Answer:
More examples?
Explanation:
Answer:
soo like what exactly do you mean
Which of the following is a subsurface event that takes place during the rock cycle? (4 points)
a
Deposition
b
Erosion
c
Weathering
d
Plate tectonics
Answer: Plates tectioncs
HOPE THIS HELPS
Answer:
Options D) is correct
Plate tectonics is a scientific theory that explains how major landforms are created as a result of Earth's subterranean movements.
Explanation:
How did the formation of the ozone layer contribute to the existence of life on Earth?
Answer:
It blocked the suns harmful UV rays !
Hope this helps!
1. What causes the inside of the cell to be more negative compared to the outside of the cell? Resting Potential, Action Potential
Answer:
Resting potential
Explanation:
This is because , the resting potential is negative in side of the cell because it has more negative charge inside than outside due to accumulation of alot of sodium and potassium ions. when an axon is at rest in the cell, the anions produce negative charge, the sodium pumps eject sodium out of the cell and potassium is injected in, and the sodium gates and potassium gates are all closed.
How is the ocean biome and the tundra biome different with climate change?
Non communicable diseases are more dangerous than communicable diseases. give any four reasons.
They include age, gender, genetics, exposure to air pollution, and behaviors such as smoking, unhealthy diet and physical inactivity which can lead to hypertension and obesity, in turn leading to increased risk of many NCDs. Most NCDs are considered preventable because they are caused by modifiable risk factors.
How does the aorta compare in size to the other blood vessels near it?
Answer: Its wider and thicker than most blood vessels
Answer: The aorta is the largest blood vessel in the body. This artery is responsible for transporting oxygen rich blood from your heart to the rest of your body. The aorta begins at the left ventricle of the heart, extending upward into the chest to form an arch.
Blood vessels are the channels or conduits through which blood is distributed to body tissues. The vessels make up two closed systems of tubes that begin and end at the heart. One system, the pulmonary vessels, transports blood from the right ventricle to the lungs and back to the left atrium.
Explanation:
What determines the kind of genes an organism possesses?
1.
type of amino acids in the cells of the organism
2.
sequence of the subunits A, T, C, and G in the DNA of the organism
3.
size of simple sugar molecules in the organs of the organism
4.
shape of the protein molecules in the organelles of the organism
Su
Answer:
2.) sequence of the subunits in the base sequence of the DNA
Can u plz tell me five facts about the primary succession
Answer:
Primary succession begins in barren areas, such as on bare rock exposed by a retreating glacier.
Explanation:
a person has type B blood. What are all the possible blood types of his parents?
Answer:
It could be A and O, AB and A, AB and O or A and B.
Hope this helps! :)
A person has type B blood the possible blood types of his parents can be A x B, A x AB, O x AB, B x AB, AB x AB, B x O, B x B.
What is blood types?The four main blood types are A, B, AB, and O. Your blood type is determined by the genes your parents gave you.
Red blood cells with blood group A antigens have anti-B plasma antibodies. Plasma from people with blood group B contains anti-A antibodies and B antigens.
Blood group O has both anti-A and anti-B antibodies in the plasma but no antigens. Both A and B antigens are present in blood group AB.
A person with type B blood may have parents who have the blood types A x B, A x AB, O x AB, B x AB, AB x AB, B x O, or B x B.
Thus, these are some of the possible blood types.
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• Homologous structures show ____ _____ on a____ anatomical theme. These are seen in organisms that are____ related. Give an example of a homologous structure from this activity:____
Explanation:
Homologous structures show individual variations on a common anatomical theme. These are seen in organisms that are closely related. 1. Give an example of a homologous structure from this activity: Crocodile
can racial categories be determined by biological traits?
How can a property of water contribute to its ability to change stream corridors and affect erosion and deposition patterns?
Answer:
Water Shapes the Watershed Changes in runoff can increase erosion and sedimentation of the land surface. Excessive runoff can cause downstream flooding and accelerated erosion of the land.
Edwin Hubble was an American astronomer who played a crucial role in collecting evidence to support the theory that the universe is constantly expanding outward and is not simply static. He used light from distance stars to calculate their movement.
Meanwhile, around this same period of time, a Russian physicist by the name of Mikhail Lomonosov worked tirelessly in his lab studying different chemical reactions. Lomonosov would later help in developing the Law of Mass Conservation which states that during a chemical reaction the total mass of the substances before the reaction is equal to the total mass after the chemical reaction.
How are the methods used in the pursuit of a scientific explanation different between Edwin Hubble and Mikhail Lomonosov?
A) Edwin Hubble carefully identified and manipulated variables to answer questions; Mikhail Lomonosov made observations about the natural world.
B) Edwin Hubble made observations about what he studied; Mikhail Lomonosov did not
C) Edwin Hubble and Mikhail Lomonosov both used scientific equipment and collected evidence
D) Edwin Hubble made observations about the natural world; Mikhail Lomonosov carefully identified and manipulated variables to answer questions.
Answer:
C
Explanation:
These type of questions leave a great deal to be desired. There is no mention of which way Hubble used and manipulated data. He studied the variations in light to determine his conclusions.
Nor is there any mention of what Lomonosov did to come to the conclusion that conservation of mass is a constant.
We don't know what was done to get the results. Hubble was studying the universe; the conclusions made by Lomonosov depended on lab equipment that was very delicate (I'm assuming). I doubt he manipulated variables. He measured what he got.
I think the answer is C, but the question has so many assumptions that it is hard to know what answer to pick.
why are rabbits a good organism to study in terms of population ecology?
Answer:
because they reproduce often and when they do they provide many offspring
Answer: ecologists study the interactions between organisms and their environment, ... In other words, this model shows the growth of a population in an ideal ...
Explanation:
In other words, this model shows the growth of a population in an ideal ...
what would happen to the ecosystem in the terrarium if it were a closed system for energy
Answer:
It would mimic the behavior of the earth's atmospheric atmosphere where you have a water cycle and sunlight which aids photosynthesis.
Explanation:
A terrarium is a glass container that can be covered and opened at will. It can be used to grow a plants using soil.
When it is sealed, water evaporates onto the body of the glass and runs down the sides of the glass only to be evaporated again and the same process happens over and over again.
Because the plants are in a glass container, they can still access sunlight for photosynthesis.
Sometimes the glass is opened up for maintenance. Maintenance here refers to the removal of algae that sometimes forms on the inner walls of the terrarium. Sometimes, there is also need to add water to the ecosystem in the terrarium given that the water inside usually escapes via evaporation over time.
Cheers
Answer: everything in it would die
Explanation:
what type of rock can form deep below Earth's surface?
Answer:
Bedrock
Explanation:
in oretty sure it forma underground
Answer:
Igneous rocks
Explanation:
Igneous rocks that form below the Earth's surface are called intrusive igneous rocks (or plutonic). They form when magma enters an underground chamber, cools very slowly, and forms rocks full of large crystals. Igneous rocks that form above the Earth's surface are called extrusive igneous rocks.
Which of the following actions increases the volume of your lungs?
d. Gases move from areas of lower pressure.
c. Air pressure increases inside the lungs.
a. The diaphragm flattens and moves downward.
b. The rib cage becomes smaller.
Answer:
B
Explanation:
During the process of inhalation, the lung volume expands as a result of the contraction of the diaphragm and intercostal muscles (the muscles that are connected to the rib cage), thus expanding the thoracic cavity. Due to this increase in volume, the pressure is decreased, based on the principles of Boyle's Law
What is the answer please?????
integrated science
plant reproduction
Flowering plants reproduce sexually through a process called pollination. The flowers contain male sex organs called stamens and female sex organs called pistils. Cross-pollination happens when the wind or animals move pollen from one plant to fertilize the ovules on a different plant.
Young male chimpanzees look for mates outside of their own population. The males then take the females back to their group. Which of the following occurs in the original females' population?
A emigration
B immigration
C mortality
D natality
Answer:
D
Explanation:
describe how energy for the photosynthesis reaction is gained by plants (2)
please help
Answer:
Plzzzz answer fast......
The energy for the photosynthesis reaction is gained in the first stage of the reaction.
There are 2 stages in photosynthesis:
The light-dependent stageThe light-independent stageDuring the light-dependent stage, an electron in the molecules of chlorophyll gets excited and gets knocked off as a result of photon absorption. A molecule of water is split and the electrons released replace the one lost by the chlorophyll after traveling through the electron transport chain.
The energy from the traveling electron is used to reduce NADP+ to NADPH while the splitting of water to H and O means that a proton gradient is established between the stroma and the thylakoid lumen of the chloroplast. The electrochemical gradient thus created is used by ATP synthase to generate ATP from ADP.
The two chemicals, ATP and NADPH, are then utilized as energy sources for the light-independent reaction.
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Water molecules have oppositely charged ends, + and -
These opposite charges allow for them to form covalent
bonds with other water molecules which is how water
droplets form. What is this called?
a) viscosity
b) polarity
c) density
d) surface tension
Answer:
polarity is the answer.
plz mark me as brainliest.
What is the role of each of the following types of organisms in an ecosystem?
Answer:
The living organisms in an ecosystem can be divided into three categories: producers, consumers and decomposers. They are all important parts of an ecosystem. Consumers are animals and they get their energy from the producers or from organisms that eat producers.
I Hope This Helps A Little Bit.
Please answer me what’s the answer for this ?
Answer: Gene flow my man
Explanation:
3.2 State whether each of the phrases applies to A only, B only,
both A and B or none. Write down A only, B only, both A and B
or 'none' next to the question number.
For example, 3.2.6 None
3.2.1 Mitosis
A cloning
B chromosomes
3.2.2 Chromosome
A chromatid
B spindle fibre
3.2.3 Phases in the cell cycle
A interphase
B mitosis
3.2.4 Tumour
A benign
B malignant
3.2.5 Bone cancer
A carcinoma
B leukaemia
Answer:
3.2.1 Mitosis - Both A and B
3.2.2 Chromosome - Both A and B
3.2.3 Phases in the cell cycle - Both A and B
3.2.4 Tumor - Both A and B
3.2.5 Bone cancer - B only
Explanation:
1. Mitosis is a process of cell replication , in which one cell divides into two identical daughter cells having the same number of chromosomes. In mitosis, the two new cells are genetically identical. Copies of the chromosome (containing the DNA) are made and distributed equally to each cell. Some organisms such as bacteria reproduce entirely by mitosis.
In cloning, an organism that is genetically identical to another organism is made from that original organism. Cloning can occur naturally or may be done by man artificially. In nature, many organisms produce clones through asexual reproduction for example bacteria produces clones by mitotic binary fission.
Therefore, the phrase mitosis, applies to both A and B.
2. Chromosomes are structures found within the nucleus of cells that contain the genetic material of the organism. The chromosomes are composed two identical structures called chromatids thar are joined together to at a constricted point known as centromere.
During cell division, long fibres extend from the centroiles at the ends of the cell to the centromere of the nucleus in order to pull them apart. These long fibres are known as spindle fibres.
Therefore, the phrase, Chromosome, applies to both A and B
3. The phases in the cell cycle are divided into two major stages : interphase and Mitosis. In interphase, the cell grows and makes a copy of its DNA.
In mitotis, the cell DNA divides into two sets, the cytoplasm divides, forming two new cells.
Thus, phases of cell cycle applies to both A and B
4. Tumours are abnormal growths occurring in any part of the body which may be benign or malignant.
Benign tumours are harmless growth which do not have spread out to other tissues to form various cancers.
Malignant tumors spread out from their point of growth to other tissues leading to cancer in these other tissues and organs.
Therefore, tumors applies to both benign and malignant.
5. Bone cancer refers to abnormal growth of bone cells.
Carcinomas are cancers of the skin and tissue lining of organs.
Leukaemia are cancers affecting the bone marrow, whereby the bone marrow makes abnormal white blood cells, red blood cells and platelets.
Thus, bone cancer only applies to B.
what is meanustration pariod
Answer:
menstration period is when a woman's body releases tissue it no longer needs so then the girl bleeds (usually for 7 days) and then every month or so (different for all girls) the uterus lining gets thicker to prepare for a fertilized egg if the woman becomes pregnant. :)
(E
Complete the following sentence.
The ability of an animal to produce offspring or food products is called its
Answer:
Fecundity should be correct
All of the following traits is inherited by an eagle EXCEPT-
brown wings
cracked beak
sharp talons
feathered tail
Answer: cracked beak
Explanation:
What other traits are highly variable like human skin color ?