1.
The respiratory system exchanges oxygen and carbon dioxide with the circulatory system.
23) Tiny animals, called coral polyps, that secrete limestone create a.Barrier islands b.Coral reefs c.Swamps d. Salt marshes
Answer:b)coral reefs
Explanation: Coral reefs are made up of corals called polyps and algae.
What is an adaptation?
O A choice made by humans about what organisms breed for advantageous traits.
O A trait that increases the fitness of an organism.
O Atrait that an organism acquires without genetic influence.
Answer:
A trait that increases the fitness of an organism
Explanation:
An adaptation helps an organism survive
PLZ HELP ITS EASY ITS DUE IN 5 MINUTES
1. Which statement is true about DNA?
a. DNA is an exact copy from parent to offspring.
b. DNA is not necessary for an organism to reproduce.
c. DNA contains genes that hold specific traits for an organism.
d. Organisms create their own DNA sequence that is not like their parents.
Answer: C
Explanation:
Frogs in a certain population can be either green or bright yellow. The green color allows the frogs to blend in with their surroundings better. Over time, however, more and more yellow frogs are being born. Which conclusion can be drawn about this population?
Answer: Dominance of Gene for Bright Yellow Coloration.
Explanation: Gene carries the genetic makeup of a particular organism. It house all the information of all living organisms.
According to the phenomenon expressed by Gregor Mendel (law of Inheritance), genes are divided into two; dominant and recessive. The gene responsible for bright yellow color is more dominant in ascending generation of the frog which translates that gene responsible for green color is recessive.
Answer:
the frogs are not having enough offspring for natural selection.
Explanation:
What must reptiles do if their body temperature gets too low?
generate body heat by eating
move to a warmer area
stay in the shade
move more rapidly
Answer:
move to a warmer area
Explanation:
As cold blooded animals, their body temperature is dependent on their environment. By moving to a warmer area, reptiles will be able to warm their bodies up.
Answer:
move to a warmer area
Explanation:
because they are coldblodded animals
The table above lists the types of white blood cells found in humans, indicates how abundant they
are, and describes their functions.
The two most abundant types of white blood cells may both be involved in a response to which of
these?
A. allergens
B. heat
C. bacterial infection
D. injury
Compare and contrast the production of hydrogen through electrolysis and through the breakdown of methane
Answer:
Electrolysis is more expensive. Electrolysis is when water molecules break down into oxygen and hydrogen gas. Breakdown of methane contains carbon and releases CO2.
Which scientist made x-ray diffraction photos of DNA?
O Franklin
O Chargaff
O Watson & Crick
Answer:
Rosalind Franklin
Explanation:
Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule.
1. An anatomy student was arguing with his grandfather. Granddad, who believed in folk wisdom, insisted that there are only five senses. The student, however, said that there are at least ten senses. Decide who is right, and then list all the senses.
Answer:
Granddad is right.
Explanation:
Granddad is right that there are five senses such as eyes, ears, skin, nose, and mouth. There are five sense organs that helps in sensing external environment present around the individual. Through eyes we can see our surrounding, ears can help us to hear different sounds, through skins we can sense the temperature of the surrounding, nose help us to smell different odors and mouth help us to taste different types of food. These five senses are very important for the survival of people.
What is the name of a group of connected and related organisms? A. Flow B. Matter C. System D. Energy
Plants that have both imperfect male and imperfect female flowers on a single plant are called (blank).
Which of the following is NOT one of Darwin's four steps to natural selection?
Answer:
I don't see a picture...Did you upload a picture??
Explanation:
.
transcribe the DNA strand below into the RNA
Answer:
AAUUCCGG
❤️❤️❤️❤️❤️❤️❤️❤️
GIVING BRAINLIEST!!!!!PLS HELPP!!! :((
How does a duckling become a bigger and stronger adult duck?
A) Body repair
B) Warmth
C) Growth
D) Motion
Answer:
I am pretty sure it is C. Growth
Explanation:
I am not fully sure but if it is wrong I apologize
Answer:
C
Explanation:
And i seen your questions
you always say giving brainliest
but you never do!!
that's kinda RUDE!!!
help w question 1 !!
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What is a mutation?
А: A process used in genetic engineering.
B :A type of continuous variation.
C: A condition caused by a dominant allele.
D : A change in a gene.
Which one of these is a mutation?
Answer: D
Explanation: A change in DNA is a mutation
Which of these products is made from an animal product?
O A. A sisal rug
O B. Cotton jeans
O c. A linen jacket
O D. Leather shoes
leather shoes are made from animals
Answer:
Leather shoes
Explanation:
leather comes from animal
What is the main reason we need protein in our diets
Answer:
Every cell in the human body contains protein. The basic structure of protein is a chain of amino acids. You need protein in your diet to help your body repair cells and make new ones. Protein is also important for growth and development in children, teens, and pregnant women
Explanation:
A gardener crosses a snapdragon plant that has white flowers with a snapdragon plant with red flowers. All the offspring in the F1 generation produce pink flowers. The gardener crosses two of the plants with pink flowers, and the snapdragon plants of the F2 generation have red, white, and pink flowers. Infer reasons for the gardener’s observations.
Answer:
Incomplete dominance is going on
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
How does the sun affect tides?
Which parts of the body help to make up the first line of defense for your immune system ?
a. white and red blood cells
b. Skin,breathing passages, mouth and stomach
c.T & B cells
d. Memory cells and antibodies
Answer:
b
Explanation:
its the first thing that bacteria or any pathogens come into contact
Why is Earth the only planet that is able to sustain life? *
plz help forgot what the teacher say
Answer:
It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon.
Explanation:
Which of the following is NOT a harmful side effect caused by erosion?
Question 3 options:
A)
loss of farmland
B)
dust storms
C)
landscape changes
D)
earthquakes
Answer:
the answer is D) earthquakes
Explanation:
soil erosion involves taking away of the top layer of the soil.... as for earthquakes.. these are caused by tilting and sliding of tectonic plates of which soil erosion takes no place in causing such actions
Answer:
Option D) Earthquakes.
Is your answer.
Explanation:
Hope you have a great day.
Evolution can be described as the change in __________ frequencies of a __________ over time.
Explanation:
In population genetics, the term evolution is defined as a change in the frequency of an allele in a population. ... The allele frequency within a given population can change depending on environmental factors; therefore, certain alleles become more widespread than others during the process of natural selection.
Cramps during exercise are caused by
Answer:
Muscle fatigue
Explanation:
Also dehydration
HELP PLEASE!!!!!!!!!
Which of the following is a reactant used in cellular respiration?
carbon dioxide
rubisco
the product of photosynthesis
ion channels
Answer:
The product of photosynthesis is oxygen which is used in cellular respiration.
The answer is C.
Explanation:
 Explain the difference in the function of plant and animal cell organelles, including cell membrane, cell wall, nucleus, cytoplasm, mitochondria, chloroplast, and vacuole
Answer:
Explanation:
A space inside the cell that is used to store substances and help the cell keep its shape. Chloroplasts – Structures that contain the green pigment chlorophyll, which are a key part of photosynthesis..
Define or give an example of an ecosystem
Answer:
The simplest definition of an ecosystem is that it is a community or group of living organisms that live in and interact with each other in a specific environment.
Seas, rivers
Explanation:
this is the correct answer you want
Answer:
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows.
Answer these questions for 25$ *if I delete your answer it’s wrong*
1. Using what you know about protein synthesis l, explain the cause of sickle cell anemia.
2. What evidence supports your explanation?
3. What is the relationship between the structure of the red blood cell and it’s function?
4. How does the shape of the red blood cell affect its function in the case of sickle cell anemia?
Answer:
4. Because sickle cell anemia affects the shape of red blood cells, it decreases the area of the red blood cells. This means that less oxygen is carried by the red blood cells.