So what is catalyst?
Answer:
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
"chlorine acts as a catalyst promoting the breakdown of ozone"
a person or thing that precipitates an event.
"the governor's speech acted as a catalyst for debate"
Explanation:
hope its help
Look at the picture. What does it represent? https://www.savvasrealize.com/community/proxy/assessment/5d06f8c54eec494ca75c4bc729b9db97/images/6b190a2b-c906-44ab-a086-3263ff1286cf
choose two correct answers:
A. Differentiation is the process by which cells become specialized.
B. The outer cells of the blastocyst become the embryo.
C. The inner mass of cells of the blastocyst will form the specialized cells in the body.
D. Specialized blastocyst cells become stem cells in the adult.
Answer:
C. The inner mass of cells of the blastocyst will form the specialized cells in the body.
Explanation:
i did this on a homework qiuz an got it right hope this helps
Answer: A and
Explanation:
How does passive transport occur?
Answer:
In passive transport, substances move from an area of higher concentration to an area of lower concentration. Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm).
Explanation:
I hope this helps! ^^
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The silverfish begins life:
A.as a nymph
B.from a maggot
C.in the same form as the adult
D.from a larva
A young goat has downward-curved horns. Its father has upward-curved horns while its mother has downward-
curved horns. Which of these statements explains why the young goat has downward-curved horns?
1. The young goat inherited one copy of the gene for horn shape from mother and one copy from its
father. That gene combination instructs for proteins that connect in ways that make downward-curved
horns.
2. The young goat inherited one copy of the gene for horn shape from its mother and one copy from its
father. Those genes connect together to make its downward-curved horns.
3. The young goat inherited its copies of the gene for horn shape from its mother and not from its father.
Just like its mother's genes, those genes instruct for proteins that connect in ways that make its
downward-curved horns.
4. The young goat inherited its copies of the gene for horn shape from its mother and not from its father.
Those genes connect together to make its downward-curved horns.
The young goat inherited its copies of the gene for horn shape from its mother and not from its father.
Those genes connect together to make its downward-curved horns.
Which one is the answer?
Answer:
I think 4 is an accurate answer
Answer:
Explanation:The young goat inherited its copies of the gene for horn shape from its mother and not from its father. Those genes connect together to make its downward-curved horns.
which part of the brain controls the reproductive system
The planets, comets, and meteors of the solar system are held
(in orbit by the Sun's.
fa. Gravity
16 Spring force
I. Friction
d. Tension
Answer:
Gravity
Explanation:
Gravity keeps the planets, comets and meteors in orbit around the sun. The sun is bigger and heavier than other planets etc, this causes the planets to be pulled and kept in orbit around the sun.
Hope this helps!
Do all cells need oxygen for cellular respiration to take place? A. yes B. no
what is chemical name of humans ?
Answer:
there is no chemical name for humans
My biology curriculum isn't reliable so I need to ask questions here
1 Why is it important for gametes to be haploid?(1 point)
A) It is impossible for them to be diploid because reproduction does not result in diploidy.
B) They fuse to form a diploid organism so there is the correct number of chromosomes.
C) Neither parent has the full set of genetic information so each must contribute their half.
D) When gametes are made, the diploid cell splits twice, creating four haploid organisms.
2 The inheritance pattern of one gene will not affect the inheritance pattern of another gene. This is known as(1 point)
A) crossing over.
B) genetic variation.
C) random distribution.
D) independent assortment.
3 Which of the following is a difference between phase I and phase II of meiosis?(1 point)
A) Genetic variations can only occur during phase II of meiosis.
B) Phase I results in two diploid daughter cells and phase II results in four haploid daughter cells.
C) Phase I results in daughter cells with 23 chromosomes each and phase II with 46 chromosomes each.
D) Anaphase, metaphase, and telophase only occurs during phase I of meiosis.
4 What is heredity?(1 point)
A) the adaptation of certain individuals that increases their likelihood of survival
B) the passing of genetic information from parents to their offspring
C) the random distribution of chromosomes to produce new genetic combinations
D) the exchange of genetic information to create new variation
5 During meiosis, sister chromatids may exchange sections of DNA leading to genetic diversity. What is this process called?(1 point)
A) karyotypes
B) independent assortment
C) nondisjunction
D) crossing-over
1. It is important for gametes to be haploid because: B) They fuse to form a diploid organism so there is the correct number of chromosomes.
2. When the inheritance pattern of one gene doesn't affect the inheritance pattern of another gene, this is known as: D) independent assortment.
3. A difference between phase I and phase II of meiosis is: B) Phase I results in two diploid daughter cells and phase II results in four haploid daughter cells.
4. Heredity simply refers to: B) the passing of genetic information from parents to their offspring.
5. During meiosis, sister chromatids may exchange sections of DNA leading to genetic diversity in a process called: D) crossing-over.
Gametes are also known to as sex cells and they can be defined as the reproductive cells that are found in a living organism.
It is important for gametes to be haploid cells is because when the sperm and the egg fuse to form a diploid organism, the living sex cells will have 46 chromosomes.Independent assortment refers to a biological process through which the inheritance pattern of a particular gene doesn't affect the inheritance pattern of another gene.
During meiosis, two (2) diploid daughter cells are formed in phase I while four (4) haploid daughter cells are formed in phase II.
Heredity can be defined as the transfer of genetic information (traits) from the parents of a living organism to their offspring, either through sexual reproduction or asexual reproduction.
Some examples of hereditary traits are:
Dimples.Baldness.Height.During meiosis, crossing-over makes it possible for sister chromatids to exchange sections of deoxyribonucleic acid (DNA) which leads to genetic diversity.
Read more: https://brainly.com/question/24261254
In cats, white spots are caused by a dominant allele called T, while (tt) individuals are solid colored. Also short hair(H) is dominant to long hair(h). What would the probability be of getting a white-spotted, long-haired cat from this cross: TTHh x Tthh? What are the phenotypes of the parents?
Answer:
1. Probability is 1/2
2. Parents phenotypes:
TTHh = white spots, short hair
Tthh = white spots, long hair
Explanation:
This question involves two different genes coding for spot color and hair length in cats respectively. In the first gene, the allele for white spots (T) are dominant over the allele for solid color (t) while the allele for short hair (H) is dominant to long hair (h).
According to this question, a cross between parent cats was performed as follows: TTHh x Tthh. The following gametes will be produced by each parent:
TTHh - TH, Th, TH, Th
Tthh - Th, Th, th, th
Using these gametes in a punnet square (see attached image), 16 possible offsprings will be produced. However, according to the question, 1/2 of the offsprings will probably be white-spotted and long-haired. The phenotypes of the parents are as follows:
TTHh = white spots, short hair
Tthh = white spots, long hair
What are the selectively bred animals and plants in the 21st century pls answer I have a project
Answer:
Selective breeding or it's Animal husbendary
Hope its correct :)
- Ayaan707 for help :) -
Some people call Earth the "Blue Planet," why do you think this is? Of all the water on Earth, only about 1% is available for human use. WHY?
Answer:
I think it's not because of the water we use it's the water we have.
Explanation:
Because our planet is made up of 75% water it is naturally the first thing to recognize.
All the microscopic structures found in the cytoplasm of a cell, each with a special function
Answer:
who knows not mei 8654868546495586
Explanation:
756568954
1.This method of reforestation is done by natural means with the aid of the wind,birds,rodents and running water which scatters the seed...
T.Natural Reseeding
V.Pplanting
U.Seeding by Foresters
W.Reforestation
2.This level of biodiversity refers to the variation existing between different species...
C.Genetic diversi
D.Species diversity
E.Ecosystem diversity
3.This level of biodiversity refers to the variation existing between biological communities....
A.Ecosystem diversity
B.Species diversity
C.Genetic diversity
Answer:
T. Natural Reseeding.D. Species DiversityA. Ecosystem Diversity.Explanation:
Natural reseeding uses natural elements and actors to plant the seeds of trees. These elements and actors include water, wind, birds, rodents and other actors capable of scattering seed.
Species diversity is what defines the differentiation between the different species in an ecosystem and Ecosystem diversity relates to how biological communities/ ecosystems can be different from each other based on the organisms and food chains available in each.
Identify the three parts of the cell theory
Answer:
-Cells are the basic units of structure and function for living things.
-All living things are made of cells.
-All cells come from pre-existing cells.
Explanation:
Monocytes move from the systemic circulatory system into general connective tissues, where they differentiate into what phagocytic cell type?
A. Macrophage
B. T CELL
C. B CELL
D. Nuetrophil
Answer:
A.macrophage
Explanation:
when there is a tissue damage or infection the monocytes leave the bloodstream and enter the affected tissue or organ and undergo a series of change to become macrophage
why will the antibody produced for measles not be effective in other diseases
need asap pls help I will mark brainest
Answer:
People can be immunised against a pathogen through vaccination. Different vaccines are needed for different pathogens. For example, the MMR vaccine is used to protect children against measles, mumps and rubella (German measles).
Can someone help me with at least one of these questions. I don’t understand it at all.
Answer:
You gotta sketch out a sperm egg under the questions after the example.
Explanation:
You see, there is an example, right? Well, then, depending on how many chromosomes there are, write the correct chromosome number in each cell. Number 1 is just an example of what you gotta do. Mosquito wing cell contains 6 chromosomes. The cell contains at least 42 chromosomes. Do what you saw in the example: egg cell gamete + cell gamete = 1st somatic cell.
which tropical level do the sea urgent occupy
a producer
b primary consumer
c secondary consumer
d tertiary consumer
Answer:
primary consumers
Explanation:
I hope this helps
When air particles are close together what is it called
Answer:
slavery
Explanation:
because i like bbc
Answer:
Compression
Explanation:
The air particles are being pushed together.
Please help me i would appreciate it a lot
Answer:
c
Explanation:
These thyroid hormones stimulate all the cells in the body and control biological processes such as growth, reproduction, development, and metabolism.
answer the following question-
Describe the three components that make up the structure of the atom, including their charge and specific locations within atom.
The three components that make up the structure of the atom are as follows:
Electrons (Negatively charged sub-atomic particles). Protons (Positively charged sub-atomic particles).Neutrons (Neutrally or no charge). What is the nucleus of an atom?The nucleus of an atom may be defined as the center of any atom that significantly consists of protons and neutrons.
Due to the positive charge on protons and neutral charge on neutrons, the nucleus of an atom is found to be positively charged.
The electrons are negatively charged sub-atomic particles which are always revolving around the nucleus of an atom.
While protons are positively-charged sub-atomic particles that are present in the nucleus of an atom. And Neutrons are neutral or no charge sub-atomic particles that are present in the nucleus of an atom along with protons.
Therefore, the three components of atom has been significantly described with respect to their charge and specific locations within atom.
To learn more about Three components of an atom, refer to the link:
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What is the difference between aggression and courtship?
Answer:
How you approach and talk to the person you like
Explanation:
If you go up and start saying inappropriate things or immediately try to kiss them then that is aggression. But if you go up and give them a subtle and light compliment like ''Hey I like your shirt" and start a conversation, maybe at the end ask (not demand) for her number, then that is a courtship. P.S.If you say something like give me your phone number, that is aggression.
Which of the following is linked to an increase in brain size and intelligence in hominids?
options:
Increased social interactions
Development of more complex and tools and language
Decreased use of tools and language
Increased speed and strength
Answer: b
Explanation: I took the test
Answer:
Development of more complex and tools and language
Explanation:
I took the test
this is an organism whose genome has been altered by the techniques of genetic engineering so that its DNA contains one or more genes not normally found there
Answer:
A transgenic, or genetically modified, organism is one that has been altered through recombinant DNA technology, which involves either the combining of DNA from different genomes or the insertion of foreign DNA into a genome.
What is the exchange of genes between
homologous chromosomes called?
A Crossing over
B. Independent assortment
C. Criss-Crossing
D. Meiosis
A. Crossing over
During synapsis in meiosis (when the homologous chromosomes pair together during prophase I), is when crossing over occurs, and the chromatids of the homologous pairs "cross over" and swap genetic material.
I would appreciate brainliest, if not that's ok!
please help me with this homework question!
Answer:
b I do believe
Explanation:
can you help me
During cellular respiration, your body breaks down glucose and releases
a.ATP.
b.oxygen.
c.hydrogen.
d.chlorophyll
