Explain the variation and distribution of expressed traits in a population in regards to the Sama-Bajau people and enlarged spleen. How does having an enlarged spleen benefit?

Answers

Answer 1

It is common for Sama-Banjou people to have an enlarged spleen, this is the result of environmental factors as a larger spleen helps them to dive better.

In most people, an enlarged spleen is not common and it is often related to specific conditions and diseases. Due to this, the percentage of people with an enlarged spleen is quite low.

Despite this, it has been found many Sama-Banjou people have an enlarged spleen and this is the result of environmental factors. Indeed, Sama-Banjou people have relied on diving to survive for centuries as they collect seashells from the seafloor.

This condition has led to bigger spleens, these bigger spleens increase the amount of oxygen while diving, and therefore, help them to dive for longer periods.

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Related Questions

Organisms use different types of adaptations to aid in their survival. Which of the following is an adaptation that would not help a lion to catch its prey?
a.
group hunting
b.
hyoid bone adapted for roaring
c.
camouflage
d.
keen eyesight

Answers

Answer:

B. Hyoid bone adapted for roaring.

Explanation:

The process of roaring is unrelated to helping a lion catch its prey unlike the other 3 adaptions which would allow for better success rates in terms of finding and catching prey.

Answer:B

hyoid bone adapted for roaring

Explanation:

EDGE 2021

A small group of worms belonging to the phylum ___________ are sometimes referred to as the missing link between Chordates and Echinoderms as they share some basic developmental characteristics of both.

Answers

Answer: the answer is Hemichordates

Use the molecular structures to predict which of the six solutions will test positive for glucose. Write your prediction in the answer space. Provide the reasoning behind your prediction.

Answers

The monosaccharides; glucose, fructose and galactose all test positive to Fehlings solution.

Fehlings solution is used as a test for reducing sugars. All reducing sugars that contain aldehydes or ketones all test positive to the Fehlings solution. A positive test is indicated by the formation of a brick - red precipitate on boiling.

The monosaccharides, glucose, fructose and galactose all test positive to Fehlings solution owing to the presence of the C=O group in each compound.

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Which is a part of the process of speciation?
A. Increased gene flow
B. Interbreeding between species
C. Fixing alleles
D. Divergence

Answers

According to the research, divergence is a part of the process of speciation.

What is divergence?

It is the process of speciation in which two closely related species evolve by changing a common ancestral structure in different ways.

In other words, starting from an ancestral structure, different species evolved by adapting to their environment and their needs.

Therefore, we can conclude that according to the research, divergence is a part of the process of speciation.

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Cortical nephrons have their corpuscles near the _________ edge of the cortex and are the ______ common type of nephron.

Answers

Answer: the first is Peripheral and the second blank is more

how do bacteria associated with legumes provide nitrogen to the plant in a usable form
A. they use it in a chemical reaction producing ammonia
B. they make it into air bubbles and release it
C. they dissolve it in water
D. they get it from sunlight ​

Answers

(A) they use it in a chemical reaction producing ammonia.

help me pls ASAP it's need​

Answers

Answer:

slash and burn methods results in soil erosion due to the fact that it causes landslides, dust clouds and contaminated water. Soil washes away during rain and trees are no longer supported by the soil holding their roots in place

PLZZZZZZ HELLPPP
Bacteria commonly change ______ to a form that can then be easily assimilated by plant

Answers

Answer:

Bacteria commonly change nitrogen to a form that can then be easily assimilated by plant.

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A population of rhinos in Africa is 112. this year there were 17 births and eight deaths in the population. What is the change in population? Do we have a positive, negative, or zero change in population? How many members are in the new population?

Answer should contain the following information: work for calculating the change in population positive, negative, or zero change in population. work for calculating the new population

Answers

Explanation:

Why anti-poaching?

Rhinos have inhabited the African continent for over a million years and they play a huge role in their ecosystems. The illegal trade in powders made from their horns, which in some countries in Asia is still considered a medicine or simply a symbol of wealth, nearly led to the extinction of the African rhino.

In 1875, there were still more than 1,000,000 rhinos living in the vast grasslands of Africa. Today the populations of the two species of black rhino and white rhino are estimated to contain about 5,000 and 20,000 animals respectively. The senseless killings continue. Since 2007, the number of rhinos hunted in Africa has increased by almost 9,000%.

It is therefore our call to stop the slaughter of rhinos with all our might.

What is the name of the chemical reaction which occurs in the body to release stored energy from food?

Answers

[tex]\huge \bf༆ Answer ༄[/tex]

Respiration is the process (chemical reaction) which takes place in the body to release stored energy from food ~

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Select the correct location on the image.
Where is the protective covering of the axon?

Answers

Myelin the orange extended region

Answer: myelin sheath

Explanation:

The axon is covered by a myelin sheath. The axon passes information to the next neuron or other cell in the body. A myelin sheath.

a scientific study shows that for every 1 hour of studying that a student does their grade on the test improves by 20% what is the independent variable

Answers

The hours of studying is the independent variable. Independent variables are “the things I change” in the experiment

Which of the following situations
demonstrates a chemical change?
A. wood turning to ashes as it burn's
B. ice forming when water is placed in a freezer
C. sugar dissolving in a glass of hot
tea
D. a board becoming smooth as it is sanded

Answers

A. wood turning to ashes as it burns, because when something burns that is a chemical change
The correct answer is A

PLEASE HELP!!!!!
What happens to the original DNA strand after transcription?

Answers

Answer:

It changes its form

Explanation:

The DNA strand during this process is copied and "mutate" if I may use the word , the after the new copies are change to molecules that's why at the end of the day we have different blueprints

Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). The newly formed mRNA copies of the gene then serve as blueprints for protein synthesis during the process of translation.

The element present in the chlorophyll pigment is

Answers

Answer:

full ques..please.. not understanding

Answer:

magnesium atom

Explanation:

The chlorophyll molecule consists of a central magnesium atom surrounded by a nitrogen-containing structure called a porphyrin ring; attached to the ring is a long carbon–hydrogen side chain, known as a phytol chain.

What normally happens immediately after fertilization in sexual reproduction?
A) drsion of cells resulbng in the development of an embryo from a zygote
B) production of daughter cells having half the number of chromosomes as the parent cell
C) production of daughter cells having twice the number of chromosomes as the parent cell
D) Specialization of cells to form a fetus from an egg ​

Answers

Answer:I don’t know this one.

Explanation:but it should be a

Division of cells resulting in the development of an embryo from a zygote happens after fertilization. Therefore, option "A" is correct.

What is fertilisation?

The creation of a single cell known as a zygote by the fusion of a female gamete is egg and a male gamete a sperm. The biological process of fertilization in animals entails the union of a sperm as the male gamete and an egg as the female gamete or ovum.

The three techniques of internal fertilization are oviparity is an egg deposited outside of the female body, oviparity is an egg kept within the female, and viviparity is said to be developed within the female followed by live delivery.

Therefore, fertilization is the first step in the development of the zygote and the development of life.

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Explain the difference between afferent and efferent neurons.

Answers

Answer:

The Difference between Afferent and Efferent Neurons :-

Neurons that receive information from our sensory organs (e.g. eye, skin) and transmit this input to the central nervous system are called afferent neurons.

Neurons that send impulses from the central nervous system to your limbs and organs are called efferent neurons.

Hope this helps you XD !!!

In plant cells, how are chloroplasts and mitochondria related?

A. Chloroplasts manufacture food;mitochondria break down the food and convert it to energy

B. Chloroplasts package nutrients;mitochondria deliver the nutrients to other parts of the cell

C. Chloroplasts absorb water from the surrounding tissue; mitochondria store water

D. Chloroplasts direct the functions of the cell;mitochondria deliver messages to other parts of the cell.

Answers

Answer:

Explanation:

Answer is A

Mitochondria are the "powerhouses" of the cell, breaking down fuel molecules and capturing energy in cellular respiration. Chloroplasts are found in plants and algae. They're responsible for capturing light energy to make sugars in photosynthesis.

which two organelles in eukaryotic cells originated from prokaryotes?

Answers

Throughout the course of evolution, organelles such as mitochondria and chloroplasts (a form of plastid) may have arisen from engulfed prokaryotes.

How do mangroves and coral reefs show mutual relationship?

Answers

Answer:

The answers below⤵

Explanation:

Mangroves serve as a shoreline protection.

When situated near coral reefs, mangroves affect the reef communities in many interesting ways. Mangroves are trees that can grow in environments with poor oxygen content. ... Mangroves serve as shoreline protection, and, when situated near reefs, as nurseries for many species of reef fish.


Picture:

please help will give brainliest

Answers

Answer:

Explanation:

What questions you would like to ask your teacher to know about the role of vaccine in prevention of harmful diseases ​

Answers

Answer:

Some questions that can be asked:

1) How does the vaccine work and prevent diseases?

2) Can some people become allergic or have a negative response to vaccines, and How does this work?

3) What causes some vaccines to not work 100% effectively?

4) How do people create vaccines?

I'm not sure if this is what you were asking for, hopefully, this helps.

PLEASE HELP ME I NEED HELP​

Answers

Answer:

D

Explanation:

Hope this helps

Answer:

I'm pretty sure its D - hibernation

Explanation:

Torpor means a state of physical or mental inactivity, or lethargy.

Hibernation means an extended period of inactivity.

They are both used for survival in cold weather.

A student is investigating the process of osmosis. She fills a medicine dropper with red
blood cells. Next, she creates a saline solution that is isotonic to the red blood cells.What will most likely happen to the red blood cells after they are placed in the
solution?
A. Water will exit the cells and cause them to shrink in size.
B. Water will enter the cells and cause them to grow in size.
C. Water will neither enter or exit the cells and their sizes will remain the same.
D. Water will enter and exit the cells at a steady rate and their sizes will remain
the same.

Answers

Answer: D. Water will enter and exit the cells at a steady rate and their sizes will remain the same.

Explanation:

Osmosis occurs when the salt content is NOT the same as our red blood cells: the salt or lack of it causes our RBCs to swell or shrink. Isotonic fluid has the same salt content as our RBCs. This is why it's important to watch salt intake in congestive heart failure.

mitosis is the only type of cellular division in which:

Answers

Answer:

itosis is a process where a single cell divides into two identical daughter cells.

Explanation:

Mitosis is the only type of cellular division in which number of chromosomes is maintained

What is mitosis?

During the phase of the cell cycle known as mitosis, duplicated chromosomes are physically split in half to form two new nuclei. Mitosis is a method of cell division that results in the production of cells that are genetically similar and in which the total number of chromosomes is preserved. Since this occurs during mitosis, the process is often referred to as equational division.

Mitosis serves a very vital purpose in living creatures, and one of its functions is the regeneration and replacement of worn-out and damaged tissues. Mitosis contributes to the generation of identical copies of cells and, as a result, assists in the process of healing damaged tissue or replacing cells that have been worn out.

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Which type of bond, denoted by the arrows, allows DNA to be readily replicated?

Need for a final will mark brainliest!

Answers

Hydrogen bonds but I’m not provided in detail on the question

Answer:

the answer would be hydrogen bonds as another chemical will come down the center of the double helix and break the hydrogen bonds allowing DNA synthase II to come along a replicate it.

Under which conditions would air hold less water vapor than it holds at 30°C
(86°F) with sunny skies?
A. 34°C (94°F) with cloudy skies
B. 30°C (86°F) with cloudy skies
C. 22°C (86°F) with sunny skies
D. 32°C (90°F) with sunny skies

Answers

Answer:

B

Explanation:

jus CS its right

The relative humidity of the air affects how much water vapor it can hold. 30°C (86°F) with cloudy skies would air hold less water vapor than it holds at 30°C (86°F) with sunny skies. So, the correct option is B.

What is Relative humidity?

Relative humidity (RH) measures the amount of moisture in the air compared to the maximum amount of moisture in the air at a given temperature and pressure. It is a standard figure for describing the moisture content of the air and is expressed as a percentage.

At a given temperature and pressure, air is considered to have 100% relative humidity when it contains all the moisture it can hold. The temperature at which the moisture in the air begins to condense into droplets is known as the dew point.

Therefore, the correct option is B.

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the structure that separates the cochlear duct from the tympanic duct is the

Answers

Answer:

the basilar membrane

Explanation:

The tympanic duct or scala tympani is one of the perilymph-filled cavities in the inner ear of humans. It is separated from the cochlear duct by the basilar membrane, and it extends from the round window to the helicotrema, where it continues as vestibular duct.

You are learning about mimicry in entomology. Which microscope would be best to look at the wings of two different butterflies to determine which is a Monarch Butterfly and which is a Viceroy Butterfly?

Answers

SEM scanning electron microscopy

The greatest tool to use to compare the wings of two distinct butterflies and identify which is a Viceroy butterfly and which is a Monarch butterfly is a scanning electron microscope, hence option C is correct.

What is a scanning electron microscope?

A focused stream of electrons is used by an electron microscope known as a scanning electron microscope (SEM) to scan a sample's surface and produce images of the material.

Various signals that reveal information about the sample's surface topography and composition appear as the electrons make contact with the sample's atoms.

The electron beam is scanned using a raster scan pattern, and an image is produced by fusing the position of the beam with the intensity of the signal that is detected.

Therefore, to compare the wings of two distinct butterflies and identify which is a Viceroy butterfly and which is a Monarch butterfly with a scanning electron microscope,  hence option C is correct.

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The given question is incomplete, so the complete  question is,

You are learning about mimicry in entomology. Which microscope would be best to look at the wing of two different butterflies to determine which i a Monarch Butterfly and which I a Viceroy Butterfly?

compound microscope

dissection microscope

scanning electron microscope

tranmiion electron microcope

Why is meiosis important for sexua
reproduction?

Answers

Answer:

Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.

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The biologist chooses the first cloud-free night and catches the first 18 bats that fly out of a cave, placing them into three equal groups of six bats. To decide the treatment for each group, the biologist places three slips of paper labeled control, treatment group 1, and treatment group 2 in a hat and randomly selects 2 slips of paper. The first piece of paper gives the treatment for the first group, the second piece of paper gives the treatment for the second group, and the remaining treatment is given to the third group.Which component is missing from the biologists process?The biologist did not use proper labeling on the pieces of paper.The biologist did not use the appropriate number of treatment groups.The biologist did not randomly assign the individual bats to the treatment groups.The biologist did not randomly choose the weather on the night for bat capture. Please i need this answer right now please answer this properly!!!!! two nations competed for ownership of land with oil reserves. 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