What is a homologous structure? Give an example

Answers

Answer 1

they are the same. like homologous chromosomes are the exact same chromosomes.

Related Questions

what are organisms of the same species that are at the same level of descent from a common ancestor called?

a. species of ancestors
b. generations
c. populations
d. hybrid levels

Answers

I feel like it’s A or B but I have a strong feeling for A

The answer to your question is A ( Species of Ancestors)

what are the structures in the leaves that are unutilized in transpiration? ( pls hurry)

Answers

Answer:

Stomata – Stomata are pores in the leaf that allow gas exchange where water vapor leaves the plant and carbon dioxide enters. Special cells called guard cells control each pore's opening or closing. When stomata are open, transpiration rates increase; when they are closed, transpiration rates decrease.

stomata

explanation:

How Natural Selection change in a population overtime? With white/speckled moths and black moths.

Answers

Overtime, the the species with the traits that make them more susceptible to predators and put them at a disadvantage to the other moths, and they will die out and become less common. The species in higher abundance depends on the location. The white speckled moths would be better protected against predators in a forest environment because they could blend in with trees, but the black moths would be better protected at night. Overtime the species with the traits that keep them more protected would become more common and the other species would die out.

Tutt suggested that the peppered moths were an example of natural selection. He recognized that the camouflage of the light moth no longer worked in the dark forest. Dark moths live longer in a dark forest, so they had more time to breed. All living things respond to natural selection.

Which of these organisms is not a chordate?
earthworm
snake
sea squirt
human

Answers

an earthworm is not a chordate.

an earthworm,

hope this helped.

one product was O2 (oxygen gas). What was the evidence of this gas?

Answers

The answer is that the gas would be bad for the oxygen gas

evidence of the gas is 8.3

I dont kno what is this because since this is layers of earth its hard for me

Answers

Cant see the picture/question

Answer:

I'm so confused. what is the question?

Explanation:

is it on Earth's layers?

GIVING 37 POINTS AND BRAINLIEST !!!!! URGENT

Please answer all of the questions
Subject: science

Answers

Answer: 2nd question=2

3rd= 11.46 million years

4th=250grams

5th=5.2billion years

6th=2130 million years

7th=4 times

Explanation:

pls mark brainliest

They are all good how the other comment said
Let me know if you need more help

A student is studying a gray pine (conifer/gymnosperms), an apple tree and an avocado tree. After conducting research about them she discovers some similarities and differences between them. What are some of the differences and similarities she probably discovered? (Hints: think about how they reproduce)

Answers

I think some ways they are alike is because they both grow from a tree they both need the sunlight and the water to grow

why should gender selection be illegal

Answers

Gender selection should be illegal because god made you the gender that you are for a reason. Two it cost a lot of money. Three why can’t you just be happy with yourself.

it shouldn’t be illegal because people can change their gender however they want. if that’s what makes them happy then it’s there choice to do whatever they like with themselves and their money.

A manual contains instructions for how to build a variety of structures using a set of interlocking bricks. If this scenario is used as a model for genetic information, which statement is correct?
A, Each set of instructions is a protein
B, Each structure is a gene
C, The manual is a chromosome

Answers

c, the manual is a chromosome

I'LL GIVE BRAINLIEST:

Answers

Letter A is the answer

What percent of energy is transferred from the sun to the level indicated?

50 percent
100 percent
10 percent
90 percent

Answers

Answer:

Explanation:

0.5 1 0.1 0.9

Answer:

10 percent

Explanation:

WILL GIVE BRAINLIEST The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics. A slanting line is shown. There are four lines drawn vertically on this line at equal intervals. There is a black circle between each pair of these vertical lines. Protists, Plants, Fungi, Animals are written on top of each vertical line in order from left to right. Common Cell is written on the left most end of the sloping line. The second black circle has X written on it. The fourth black circle has Are Mobile written on it. What characteristic can be written at point X? Explain your answer in complete sentences.

Answers

Answer:

First of all we need to understand what are shared derived characteristics or synapomorphies. These are the characters which were evolved in the ancestors of special groups of organisms and after that they were transferred to the descendants (or lineages) of those groups as well.

These characters are very important in the grouping or organisms. Now coming towards the question, we see there is a cross between Fungi and Plantae.

The shared derived character that can be written here will be multicellular and eukaryotes.

These are the characters which were evolved in both fungi and protists from their immediate ancestors and are transfrred to their further lineages as well.

Explanation:

Answer:

The answer is plant fungi, in order to become a full on plant you have to have something that can produce a plant with something you already have, (The Protists)

Which parts of the compound light microscope can be used to improve the quality of the image being observed?

a.) diaphragm and fine adjustment
b.) ocular and high power objective
c.) coarse adjustment and low power objective
d.) ocular and diaphragm

Answers

C.coarse adjustment n lo power objective

i believe the answer is either

a.) diaphragm and fine adjustment
or
d.) ocular and diaphragm

but i’m leaning more towards a.)

Which is an example of a trace fossil?

A: animal burrow
B: skin of organism
C: preserved bone
D: petrified wood

Answers

Answer:

A: Animal burrow

Explanation:

Edge 2021

Trace fossils can be defined as the ones that provide geological records of the behavior and activities of past life.

These are also known as Ichnofossils.Trace fossils include borings, track and trails, burrowings, and coprolites and gastrolithes.Among the given examples, the evidence of past life is provided by the burrows of animals.

Hence, among the given examples, trace evidence is an animal burrow. Therefore, the correct answer is option a.

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Cell walls can be found in several different types of cells. Which of the following best describes the function of the cell wall?
A. Controls what passes in and out of plant cells.
B. Controls what passes in and out of animal cells.
C. Provides support and helps maintain the shape of plant cells.
D. Provides support and helps maintain the shape of animal cells.

Answers

a i think but plant cells

i thibk it is a but its definitely plant cells

C.

The cell wall helps provide support to the cell. The plasma membrane is what controls the flow of ions and other particles into the cell. Cell walls are also only found in plant cells.

Look at the diagram of the rock cycle below.

Which part of the cycle is missing?
A.
sedimentation
B.
melting
C.
crystallization
D.
mineral integration

Answers

answer B.

it’s melting

From the diagram of the rock cycle the missing part is ( B ) ; Melting

Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.

Magma is released to the earth surfaces during volcanoes therefore the missing term in the rock cycle is melting

Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.

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PLEASE HELP! 15 POINTS! BRAINLIEST!
write a paragraph explaining the science behind this model and why it represents the law of conservation of matter.

Answers

It’s an animal cycle explaining how it works

The Model shows that energy cannot be created or destroyed, and that energy just changed and transfers to other objects

Which statement explains how wind weathers rocks?

A. t can dry rocks out.

B. It can cause rocks to heat up.

C. It can cause rocks to get cold.

D. It can carry bits of sand which erode the rocks.

Answers

Answer:

D. It can carry bits of sand which erode the rocks.

Explanation:

D. It can carry bits of sand which erode the rocks.

Seed Germination Investigation
 The students are to investigate the process of seed germination during their summer
vacation.
 They will select different types of seeds, such as beans, peas, or sunflower seeds.
 Encourage students to set up a germination experiment by placing the seeds in
different conditions, such as light vs. dark, or wet vs. dry. Moreover, they need to
pot the same seed in more than one pots.
 They should observe and document the changes that occur over time, including the
emergence of roots and shoots.

Answers

Answer:

Okay...In this case I suggest you use corn seed or beans seed

Explanation:

It should take about 6 weeks to see the Germination, until then continue watering it and giving it sunlight

The seed germination investigation during the students' summer vacation involves selecting various seeds (e.g., beans, peas, sunflower) and setting up an experiment. They will place the seeds in different conditions, like light vs. dark or wet vs. dry, and pot the same seed in multiple pots. Throughout the investigation, the students are expected to carefully observe and document the changes that take place over time, including the growth of roots and shoots. This hands-on approach allows them to gain practical knowledge of seed germination and develop essential scientific skills in observation, data collection, and documentation.

someone help please ! ( science ) the picture is what helps get the answer not multiple choice

About how far does the S wave travel through Earth in 13 minutes?

2,000 km
4,000 km
6,000 km
8,000 km

Answers

I think the answer 4,000 km I maybe wrong but if I’m not can you please mark me brainly

4,000 km if you look at the other choices the time of 13 minutes for the S wave wouldn’t correlate to the other numbers but it does with 4,000

Conclusions, How are Mendel’s discoveries important in the world of science?

Answers

Mendel basically contributed to three very important basic laws in genetics that help us know when a trait is inherited from parents and the chances of their children inheriting that trait.

Mendel’s discoveries are important because they show how traits and characteristics are passed down from parent to offspring. His research revealed that traits are controlled by factors that parents pass down to their offspring. Mendel discovered the basic principles of heredity with pea plants, way before the discovery of DNA and genes.

hope this helps :)

50 POINTS!

Energy is transferred into the ecosystem when

1.when bacteria absorbs nitrogen from other organisms

2. dead organisms decay and form organic matter

3. rodent prey on invertebrates

4.plants grow from the soil

Answers

Answer:

Explanation:

Energy is transferred between organisms in food webs from producers to consumers.

The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.

Answer: between organisms in food webs from producers to consumers.

Explanation:

pls help me will mark brainlyest :) :

Internal and External Structures

You are now going to construct an argument that plants have internal and external structures that support growth and reproduction.

Choose the internal and external structures you want to gather evidence and create a statement about.

subject: sciences

Answers

Explanation:

Some structures are internal, like the lungs, brain, or heart. Other structures are external, like skin, eyes, and claws. Some structures are unique, like the long neck of a giraffe. Other structures are more common, like a heartStructure and Function: Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction.

Plants have internal and external structures just like us humans do. While humans internally have lungs, a heart, and intestines Plants have that to. Plants have different fibers that allow the it to move water, make food, do photosynthesis, etc. So for this you could pick a couple different plant fibers such as the sclerenchyma fiber and the parenchyma fiber. The sclerenchyma fiber allows the plant to come out of the ground. This fiber is essentially its bones. The parenchyma fiber allows photosynthesis to occur. It moves water creates food etc.

I hope this helps! Good Luck!

Observation
Use your senses to make an observation about your environment.
Questions
Create a hypothesis that can be tested in an experiment.
Remember, a hypothesis has a specific "if then" wording.It describes what will happen to the dependent variable when changes are made to the independent variable.For example, "If a plant is fertilized (independent variable), then it will grow faster (dependent variable)."

Design and plan an experiment.
Be sure to identify an independent variable, a dependent variable, and any controls.Remember, controls are factors which stay the same.In an experiment designed to test the previously stated hypothesis, one control would be to use the same kind of plant.Write a complete description of your experiment.Include a list of necessary materials.It is a good idea to follow a step-by-step procedure format.Think of everything you need to do, then write it down in the order it must be completed.Your description and procedure should be clear enough that another person could duplicate your experiment exactly.

Answers

Answer: E

Explanation:

If the intensity of light (independent variable) is increased, then the rate of photosynthesis (dependent variable) in a plant will also increase.

Experiment Design:

Independent Variable: Intensity of light (Low, Medium, High)
Dependent Variable: Rate of photosynthesis (measured by oxygen production or CO2 consumption)
Control: Same kind of plant, constant temperature, constant CO2 concentration, constant water availability, and constant duration of light exposure.
Materials:

Three identical potted plants (of the same species)
Light source(s) with adjustable intensity
Light meter (lux meter) to measure light intensity
CO2 gas sensor or oxygen gas sensor
Timer or stopwatch
Water supply
Thermometer
Data recording sheets
Procedure:

Set up the three identical potted plants in a controlled environment with the same temperature and CO2 concentration.
Ensure that all plants receive the same amount of water.
Place the light source(s) at an equal distance from the plants.
Measure and record the initial light intensity using the lux meter.
Adjust the light intensity to low for the first plant, medium for the second plant, and high for the third plant.
Start the timer and expose the plants to light for a specified duration (e.g., 1 hour).
During the exposure period, measure and record the temperature, CO2 concentration (if possible), and light intensity at regular intervals.
After the exposure period, use the CO2 gas sensor or oxygen gas sensor to measure the change in CO2 concentration or oxygen production, respectively, in the surrounding air.
Record the data obtained from the sensors and calculate the rate of photosynthesis for each plant.
Repeat the experiment multiple times to ensure reliability and average the results.
Analyze the data collected and compare the rates of photosynthesis among the three different light intensities.
Draw conclusions based on the analysis and determine whether the hypothesis is supported or rejected.
By following this experimental design, you can test the hypothesis and determine the effect of light intensity on the rate of photosynthesis in plants. Remember to conduct the experiment in a controlled environment and gather sufficient data for accurate analysis.

Based on these images, what can you say about the tentacles of an octopus and the limbs of a lizard?

Answers

I think is the fourth one but I’m not 100% sure-

Answer: 4

Explanation:

Why are tides on Earth higher than normal during spring tides?

-The Moon cancels out the gravitational pull of the Sun on Earth.

-The Sun comes closer to Earth and increases its pull.

-The Moon comes closer to Earth and increases its pull.

-The Sun combines its gravitational force with that of the Moon on Earth.

Answers

The correct answer is: The Sun combines its gravitational force with that of the moon on earth.

Yes, the answer is the sun combines the gravitational force with that of the Moon on earth
This is because when the moon is a full moon, the solar or sun is, and has an attractive effect to the lunar or moon

How do patterns in the fossil record support the conclusion that species go extinct?

Answers

Answer:

Since every specie has a differnet type od form.

Explanation:

In comparison with all the species that have ever existed, those alive today represent just a fraction. The vast majority of species in the history of the planet have become extinct. It's been estimated that a species lives between 1 and 5 million years, from its origin to its extinction. Nevertheless, the process of fossilization itself suggests that this estimate is likely to be far too optimistic, and that many species have much shorter lifespans, on the order of thousands of years. As a result, extinction occurs constantly in the grand sweep of life's history. A pattern known as background extinction is characterized by the extinction of one or a few species occurring only within a particular locale rather than globally.

Choose one moment from Narrative of the Life of Frederick Douglass that stood out to you and explain via audio response why that moment is important. Why did it stand out to you? How does that moment show Frederick Douglass' point of view?

Answers

Answer:

abcdefghijklmnopqrstuvwxyz

Explanation:

Frederick Douglass wrote his autobiography mainly to persuade readers that slavery should be abolished. To achieve his purpose, he describes the physical realities that slaves endure and his responses to his life as a slave. Hope this helps if not I can find something better

pls help me, I need this rn, thank you!

Answers

Answer:

1.) DEPED: Department of Education;

Role: Improving the quality of education

2.) DENR: Department of Environment and National resources;

Role: Conservation, management, and development of the country's environment and natural resources.

3.) DOST: Department of Science and Technology

Role: The executive department of the Philippine Government responsible for the coordination of science and technology-related projects in the Philippines

4.) DSWD: Department of Social Welfare and Development

Role: Develop, implement and coordinate social protection and poverty-reduction solutions for and with the poor, vulnerable, and disadvantaged.

5.)TESDA: Technical Education and Skills Development Authority

Role: The government agency tasked to manage and supervise technical education and skills development in the Philippines.

Explanation:

VERY LATE REPLY, SORRY!!!!

These are just some of the Philippine government agencies that are involved in protecting the environment. There are many other agencies that play a role in this important task.

What are these agencies?

Department of Environment and Natural Resources (DENR): The DENR is the lead agency in the formulation and implementation of environmental policies, laws, and regulations. It is also responsible for the management of natural resources, including forests, wildlife, and marine resources.

Department of Science and Technology (DOST): The DOST conducts research on environmental issues and develops technologies to address them. It also provides technical assistance to other government agencies and the private sector in the implementation of environmental programs.

Department of Social Welfare and Development (DSWD): The DSWD provides social services to people affected by environmental disasters. It also provides assistance to communities that are vulnerable to environmental hazards.

Technical Education and Skills Development Authority (TESDA): TESDA trains people in environmental-friendly technologies and practices. It also provides certification to workers in the environmental sector.

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