How can homologous structures be used as evidence for shared common ancestry?

Answers

Answer 1
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. They all have the same basic pattern of bones. They inherited this pattern from a common ancestor. However, their forelimbs now have different functions

Related Questions

What makes echinoderms unique to all other animals? (think of systems/structures they
have that no other animal has!)

Answers

Although these spines may look like components of an exoskeleton at first glance, echinoderms do not have an exoskeleton. This is partly due to their symmetry and their spiny endoskeleton.

You see everyone running and screaming, what will you do?
A. Run to see what is going on only to discover that there is a tsunami coming your way.
B. Grab gun and cuss at everyone and shoot as many people as possible.
C. Get naked and do whatever you want! <3
D. Tell the people to run the other direction saying that they are actually running towards the tsunami as you lie to them.
E. Grow wings and fly and watch all the people to die. :)

Answers

Answer:

Grow wings and fly and watch all the people to die. :)

LOLOLOLOLOLOLOL

The photo shows a process called mosquito fogging.
What is one purpose of mosquito fogging?
O A To prevent people from getting stek from undercooked meat
Te treat people who have infeetiens caused by Viruses
e. Te eamy waste away from eities so people dont get siek
D. To kill insects that commonly spread diseases to people

Answers

Answer:

D. To kill insects that commonly spread diseases to people

Answer:

D. To kill insects that commonly spread diseases to people

Explanation:

Fogging is a technique used for killing insects that involves using a fine pesticide spray (aerosol) which is directed by a blower.

Mitosis is done by your body cells. What types of cells do not undergo mitosis

Answers

Answer:

Sex cells/ gametes

Explanation:

Sperm cells and egg cells don't go through mitosis

The routes nerve impulses from our senses.
A. thalamus
B. hippocampus
C. brain stem
D. corpus callosum

Answers

Answer:

a

Explanation:

The correct answer is C. Brain Stem.

How does the brain stem function?

The thalamus and other areas of the brain receive nerve signals from our senses through the brain stem. It is made up of the medulla, pons, and midbrain and is situated at the base of the brain.

The brain stem is in charge of regulating life-sustaining processes including breathing, heart rate, and blood pressure. It is also in charge of transmitting sensory data from the body to the thalamus, which subsequently transmits the data to the relevant parts of the brain.

Although the brain stem is the main pathway for nerve impulses from our senses, the hippocampus, corpus callosum, and thalamus are all important in the processing of sensory information.

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please answer please, If we have a male hemophiliac (such as Leopold) marry a normal female, is there any way to have sons who have hemophilia? Provide a justification for your response.

Answers

Yes, hemophilia is a genetic condition, which means it can be genetically passed down to a male child, even if only one parent is a hemophiliac. The condition is also more common in male children, and is a sex-linked recessive disorder, and is carried on the X chromosome. The mother could also have the gene without actually having the disorder, so she could possibly be a carrier without knowing it, so it is possible for their son to have hemophilia, even if the dad is the only one with the gene.
Hope this helps!!

Please help me i dont understand how this stuff works

Answers

Answer:

Balloon 2

Explanation:

Opposite charges (positive/negative) attract, like charges (positive/positive or negative/negative) repel.

Have a great day!

Answer:

the second one

Explanation:

opposites charges attract so a negative charge is attracted to a positive charge and the second balloon has the most positive charge

Which of the following are prokaryotic cells?

A) plants

B) fungi

C) bacteria

D) animals

E) B and C only

Answers

fungi, bacteria

If I remember right, eukaryotic means there's more than one, so I believe this answer is right

The Answer is c: bacteria

how do organisms with many cell types develop from a single cell

Answers

Answer:

Organisms develop from a single cell into many cell types, which are organized into tissues and organs. During development, cells use both inherited info and external signals from neighbors to “decide on” their behavior and identity.

Cell division, torso axis formation, tissue and organ development are all part of development, and cell differentiation refers to acquiring a final cell type identity.

What is cell division?

The process by which a parent cell divides into two daughter cells is known as cell division.

Cell division is usually part of a larger cell cycle during which the cell grows and replicates its chromosomes before dividing.

Cell division occurs in two stages: mitosis and meiosis. When most people say "cell division," they're referring to mitosis, the process of creating new body cells.

Meiosis is the process by which egg and sperm cells are formed. Mitosis is a necessary process for life.

Multicellular organisms form in a variety of ways, including cell division and the aggregation of many single cells. Colonial organisms form when many identical individuals band together to form a colony.

Thus, this way, organisms with many cell types develop from a single cell.

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Please help it’s due in under 1 hour!!!!!
Explain how sexual and asexual reproduction both lead to better evolutionary fitness.

Answers

Answer:

Hope you get done. friend me back. and can I have brainliest

Explanation:

To get diversity in individuals, genetic differences are required, and different phenotypes must be expressed. Since sexual reproduction is more conducive to driving evolution than asexual reproduction, much more genetic diversity is available for natural selection to work on. Evolution can happen over time.

Please help due in 10 minutes!
Explain how genetic drift of alleles in a small population- and- describe 2 real world examples of genetic drift (I.e. The Founder Effect and The Bottleneck Effect)

Answers

Answer:A small population is formed with a larger population.

Explanation:The population don’t represent the genetic diversity’s of the original

Population, and there smaller size mean they may experience strong drift of generations.

The photograph shows solid waste pollution.
Which human lifestyle factors led to this situation? Select the three correct
responses. i’m

Answers

Answer:

A. People make things to earn a living

B. People want to buy things

D. People produce waste

Explanation:

What happens during the pathway of glycolysis?

A. Glucose is broken down into private

B. Carbon dioxide is produced

C. More ATP is consumed than is produced.

D. Lactic acid is produced

Answers

Answer:

the correct answer is A :Glucose is broken down into pyruvate

Answer:

If I'm correct, the glucose is broken down into pyruvate and energy.

Explanation:

I hope this helps! ^^

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When you by strawberry is "TEXTURE " matters? and why is that?

Answers

Answer:

Yes, it does.

Explanation:

If the strawberry you buy is all soggy and way too soft, it is likely rotten, while the normal texture we are used to shows that it is edible.

Answer:

Frozen strawberries were characterized organoleptically by a moist, soft and limp appearance, and poor shape retention. They felt very soft, moist, limp and slightly slimy in the mouth. Interior fibers had a tough texture.

NEED ANSWER ASAP

Students in a Biology class were formulating an argument about a cell they viewed under the microscope. Half
of the class argued it was a plant cell and the other half argued in favor of an animal cell. Below is the image the
students saw under the microscope. Which argument is supported by the image?

A. The students who said the plant cell are correct because there are chloroplasts

B. The students who said a plant cell are correct because there are mitochondria present.

C. The students who said animal cell are correct because there are chloroplasts present.

D. The students who said an animal cell are correct because there are mitochondria present.

Answers

Answer:

the answer would be A

Explanation:

Animal cells are oval and egg shaped so we can cancel out c and d

A is the correct answer because we can see green dots within the structure. Chloroplasts contain a green pigment called chlorophyll. This green pigment makes the chloroplast and the structure green (as we can see in the picture). Photosynthesis occurs in the chloroplasts, and it is where the plant gets its glucose from

Hope this helps!

1. Submit your observations of the chicken leg dissection.



2. Were you able to determine how the chicken moves?



3. What characteristics of muscles help you determine the direction of the movement?

Answers

Answer:

1. Submit your observations of the chicken leg dissection.

The first thing that I saw was the skin. This one has bumps on it. Underneath, when I carefully cut it, I could see a yellow layer which is fat. Under the fat, there is a thick pink tissue, the muscles. The muscle is in contact with the bones and attached to them by the tendons. They look thin and white and are at the muscles' ends since they attach them to the bones.

2. Were you able to determine how the chicken moves?

Yes, muscles work in pairs, so when I pull from a specific tendon, the leg bends since the muscle contracts to do this movement. Then this muscle will relax, another muscle will contract itself, and a tendon will pull the bone to return the leg to a straight position.

When one of these muscles contracts, the other relaxes to allow the bone's movement in a specific direction. Then this muscle relaxes and allows the leg's movement in the opposite direction since the muscle that was lax before now is contracting itself to extend the leg. There are a flexor and an extensor muscle.

3. What characteristics of muscles help you determine the direction of the movement?

The characteristics that help me determine the movement's direction were:

The position that the muscles have concerning the joints and the bones. The tendons at the end of the muscles and bones.

By following the muscle, the tendon, and where it is in the joint, I could determine the movement's direction.

Explanation:

When we observe a chicken leg dissection, we can determine the components that it has and how all the elements work together to move the leg. Even though the mechanism and structure are not the same as in a human body, we can see how muscles, bones, tendons, and joints work not only in animals but also in humans to allow movement.

How are the functions of the endoplasmic reticulum and the Golgi apparatus related? A. Golgi apparatus receives proteins and other materials from the endoplasmic reticulum, packages them, and distributes them to vacuoles. B. The nucleus directs the cell's activity, including any transfer of material between the endoplasmic reticulum and the Golgi apparatus. C. Proteins and other substances made in the endoplasmic reticulum are stored, packaged, and distributed by the Golgi apparatus. D. In order to function, both plant and animal cells require an endoplasmic reticulum and Golgi apparatus.

Answers

Answer:

Proteins and other substances made in the endoplasmic reticulum are stored, packaged, and distributed by the Golgi apparatus

what organelle ships proteins where they are need?​

Answers

Answer:

The endoplasmic reticulum (ER) is involved in the synthesis of lipids and synthesis and transport of proteins.

The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell.

Vesicles are also used as chemical reaction chambers.

Explanation:

PLEASE MARK ME AS BRAINLIEST

The endoplasmic reticulum (ER) is involved in the synthesis of lipids and synthesis and transport of proteins.
The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell.
Vesicles are also used as chemical reaction chambers.

the question are in the Picture:) Please help me :) ​

Answers

Answer:

Birds

Explanation:

1. Wings

2. Flight feathers and beak

3. For survival purposes

Ronald observes a sparrow's nest in a shrub outside his home. The table below describes his findings.
Week
Observations
1
Six eggs were laid in the nest.
3
Five eggs hatched, and one egg did not hatch.
One of the chicks disappeared.
7
Three of the chicks learned to fly, and another one disappeared.
What part of natural selection did Ronald observe?
adaptation
overproduction
selection
variation

Answers

Answer:

B. Overproduction

Explanation:

Overproduction is one of the main part of natural selection whereby an organism reproduces more offspring, of which only a few would be able to survive given the environmental condition amd factors that would be against the survival of the offspring to maturity.

From Ronald observation, we can see that the bird produces more eggs than would survive. Only 3 of the chicks survived.

which ecosystem has the greatest biological diversity and therefore the highest sustainability

Answers

Answer:

Tropical rain forests on land and coral reefs in marine systems are among the most biologically diverse ecosystems on Earth and have become the focus of popular attention.

Explanation:

definitely D because a rainforest is extremely vast when it comes to different species

Answer:

Species richness is greatest in tropical ecosystems. Tropical rain forests on land and coral reefs in marine systems are among the most biologically diverse ecosystems on Earth and have become the focus of popular attention.

state birth control methods according to Islam view
help me​

Answers

Answer:

There is no single attitude to contraception within Islam; however eight of the nine classic schools of Islamic law permit it. But more conservative Islamic leaders have openly campaigned against the use of condoms or other birth control methods, thus making population planning in many countries ineffective.

Does mass alone determine whether an object will float or sink? Explain

Answers

Answer:

yes because if the mass is heavy it gonna sink, if its light its gonna float

Explanation:

What other cell types does skeletal muscle cell
associate with? How do they interact?

Answers

Explanation:

Skeletal muscle cells

Muscle cells, commonly known as myocytes, are the cells that make up muscle tissue. There are 3 types of muscle cells in the human body; cardiac, skeletal, and smooth. Skeletal muscle cells are long, cylindrical, multi-nucleated and striated

Which statement is true regarding the taxonomic system?

Charles Darwin was the primary creator of the current taxonomic system.

All of the past, extinct species have been cataloged.

The current taxonomic system is based on the Linnaean classification system.

All of the current, living species in the world have been cataloged.

Answers

Answer:

1) taxonomy

2) species

3) the animal has sharp, pointed teeth

4) the current taxonomic system is based on the Linnaean system

5) he only had two kingdoms, animals and plants

Explanation:

did the quich check

The statement 'the current taxonomic system is based on the Linnaean classification system' is TRUE.

Taxonomy is a field of study focused on naming and classifying groups of organisms according to their morphological and genetic features.

The taxonomic system organizes species from larger to more specific taxonomic categories in a hierarchical system.

The botanical taxonomist Carolus Linnaeus is considered the father of taxonomy because he was the first person to formulate a system for classifying different species of plants and animals.

Nowadays, the taxonomic system includes eight (8) categories from larger to more specific: domain, kingdom, phylum, class, order, family, genus, and species.

In conclusion, the statement 'the current taxonomic system is based on the Linnaean classification system' is TRUE.

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II. Which animal is the top predator in many wetlands?
A. Raccoons
B. Alligators
C. Snakes
D Owls

Answers

Answer:

b. n kkhghiuttyytrftghjiutew

Mendel's law of segregation is describing or explaining which process?

a mitosis
b. binary fission
c. meiosis
d. asexual reproduction

Answers

Answer:

meiosis

Explanation:

because Mendel's law of segregation states that: “During the formation of gamete, each gene separates from each other so that each gamete carries only one allele for each gene.” Same applies to meiosis the chromosomes separate.

The relationship that occurs between an orchid attached on a narra tree could be
classified as Commensalism and Parasitism. True or false?

Answers

Answer:

Yes, it's True

Explanation:

A parasitic relationship helps one of the species involved in the relationship, but harms the other organism in the process of it growing. It is a symbiotic relationship and would be classified as Commensalism. Most of the orchids are epiphytes, so they tend to grow on other plants. hope you understand. Fighting!

The relationship that occurs between an orchid attached on a narra tree could be classified as Commensalism. Thus, the given statement is true.

What is Commensalism?

Commensalism is a long-term biological interaction or symbiosis in which the members of one species gain benefits which help them in survival while those of the other species are neither benefitted nor are harmed from the association.

In contrast with mutualism, in which both the organisms benefit from each other and amensalism, where one species is harmed while the other species is unaffected and that of parasitism, where one species is harmed and the other species benefitted.

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HELPP
The diagram below shows the similarities and differences of plants and animals complete the diagram by filling in the correct term as follows: heterotrophic and autotrophic and multicellular

Answers

Answer:

Both are multicellular (plants have different cells for the leaves and the stem, animals have skin cells, brain cells etc so they are called multicellular).

Plants are autotrophic - they make their own food (glucose) by photosynthesis

Animals are heterotrophic - they eat other organisms, cannot make their own food.

Explanation:

Put "Polygenic Traits" in a sentence

Answers

Answer:

Polygenic traits are controlled by a number of separate genes.

Hope it helps! :D

Answer:

Polygenic traits are controlled by a number of separate genes

Explanation:

Hope this helps

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