Answer:
Because each duplicated chromosome consists of two identical sister chromatids joined at a point called the centromere, these structures now appear as X-shaped bodies when viewed under a microscope. Several DNA binding proteins catalyze the condensation process, including cohesin and condensin.
Explanation:
If a cell was not able to produce enzymes, it could not do which of the following?
a) Raise the activation energy of vital chemical reactions, causing them to proceed too quickly
b) Lower the activation energy of vital chemical reactions, causing them to proceed too quickly
c) Raise the activation energy of vital chemical reactions, causing them to proceed too slowly
d) Lower the activation energy of vital chemical reactions, causing them to proceed too slowly
Questioned in https://brainly.com/question/18901979
Answer:D
Explanation:if your cell doesn’t produce enough enzymes it wouldn’t be available to speed up reactions throughout your body, and they would also not be available to make the many organelles made with proteins.
Which of the following statements accurately describes a pedigree chart?
A pedigree chart tracks inherited traits from parents to offspring.
A pedigree chart is used to predict the genotype of offspring.
A pedigree chart predicts the percentage of offspring that will have a specific trait.
A pedigree chart identifies the phenotype of the organism.
Answer:
A pedigree chart tracks inherited traits from parents to offspring.
Explanation:
A pedigree chart simply tracks inherited traits from parents to offspring. It is used to establish the genetic relationships between parents and their progeny.
Based on the available evidence, the chart walks through the genetic records of a family line. Parents and offspring's genetic history can be established by the chart. The chart is then further used to make predictions about genetic patterns for the family.Answer:
a
Explanation:
which of the following is true about the Earth’s layers? A The asthenosphere is the thickest of Earth’s layers. B All of the layers are liquid and extremely hot. C There is little to no pressure on the solid core. D The Earth’s core has two different parts.
Answer:
The Earth's geosphere is divided into three chemical sections: The crust, composed almost entirely of light elements, like silicon. The mantle, which is 68% of the Earth's mass. The core, the innermost layer; it is composed of very dense elements, such as nickel and iron.
Explanation:
In Geosphere is the solid or mineral part of the Earth, consists of layers, from the outer crust down to the inner core, which have separated through density and temperature.
Use the following diagram to answer the question:
The gas released in this investigation is
hydrogen
carbon dioxide
oxygen
nitrogen
Answer:
oxygen
Explanation:
the plant produce o2 while respirating using co2 and sunlight
HELP!! **50 POINTS** (I rly need help lol)
In the process of transcription, how does the mRNA strand relate to DNA?
A) The mRNA strand is complementary to the DNA strand; however, uracil instead of B) adenine is paired with thymine.
C) The mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
D) The mRNA strand mimics the DNA strand; however, uracil is the 5th based used in the sequence.
The mRNA strand is an exact copy of the DNA strand.
Answer:
between those i suppose it would be c i think
Explanation:
In the process of transcription, the mRNA strand relates to DNA, the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine. The correct option is c.
What is DNA?The information molecule is DNA. It contains information needed to create proteins, which are other big molecules. These instructions are dispersed throughout 46 lengthy structures called chromosomes that are found inside each of your cells. Numerous smaller pieces of DNA, known as genes, make up these chromosomes.
A kind of RNA that exists in cells. The genetic information required to produce proteins is carried by mRNA molecules. They transport the data from the DNA in the cell's nucleus to the cytoplasm, where proteins are produced. Likewise, known as messenger RNA.
Therefore, the correct option is c.
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Which of the following substitutions can help reduce air pollution?
Answer:
Carbon dioxide!
Explanation:
Because plants will take this in and produce oxygen
Which does of the following doe not add nitrogen to the soil? A death and decomposition B photosynthesis C nitrogen-fixing bacteria D animal waste
Answer:
c
Explanation:
What are the 2 types of crust found on Earth’s surface?
Answer:
oceanic crust and continental crust
Explanation:
Answer:
Theres oceanic and continential
Explanation:
PLEASE MARK ME BRAINLIEST
Which does the electron transport chain do during
cellular respiration?
A. Provides energy for pumping of hydrogen ions
B. Makes more energy carriers for respiration
C. Breaks down glucose into pyruvate molecules
D. Uses carbon dioxide and water to make glucose
Answer:
During this process electrons are exchanged between molecules, which creates a chemical gradient that allows for the production of ATP. The most vital part of this process is the electron transport chain, which produces more ATP than any other part of cellular respiration.
Answer:
a. provides energy for pumping of hydrogen ions
Explanation:
A student conducted an experiment to test whether talking to plants would help them to grow faster. He set up the following two groups: Group 1: spoken to and hand watered Group 2: not spoken to and watered with sprinklers After three weeks, the plants in Group 1 showed much more growth than those in Group 2. Based on the results of this experiment, which is the best conclusion?
A researcher must keep constant all the variables that are not of interest, so they can not affect the experiment results. B) They are not valid because the student did not control all the variables that can affect plant growth.
What are the variables involved in an experiment?Independent variable
This variable is the one that affects the response of the dependent variable. Any change that occurs in the independent variable will rebound on the dependent variable and will be reflected in the experiment results.
Dependent variableThis variable is the one that completely depends on other variables, meaning that any change that occurs in other variables will cause a modification on this one. It depends on the independent variable.
When conducting an experiment, several variables might affect the results. Since the researcher is only interested in studying how the independent variable influences the dependent one, he or she must keep constant all the remaining variables so they will not influence the response.
Controlled variables -constant variable-
These are all the other variables that must be kept under control so they do not affect the results of the experiment. Their values or states must be constant in the control and experimental groups.
In the exposed example, the student is interested in knowing how talking to plants would help them to grow faster.
Independent variable ⇒ talking to plants
Dependent variable ⇒ plants' growth rate
In this case, the constant variable should be the way in which the student provide water to the plants. However, the students use two different ways to water the plants: hand watering and with sprinklers.
Since this last variable is not controlled and is not constant in the control and the experimental group, it will indeed affect the plants' growth rate.
The experiment fails in keeping constant the controlled variable.
The correct option is B) They are not valid because the student did not control all the variables that can affect plant growth.
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Complete question
A student conducted an experiment to test whether talking to plants would help them to grow faster. He set up the following two groups:
Group 1: spoken to and hand wateredGroup 2: not spoken to and watered with sprinklersAfter three weeks, the plants in Group 1 showed much more growth than those in Group 2. Based on the results of this expe ment, which is the best conclusion?
A) They are valid because the student ran a controlled experiment.
B) They are not valid because the student did not control all the variables that can affect plant growth.
C) They are valid because the dependent variable caused a change in the independent variable.
D) They are not valid because the time frame to grow a plant is too short.
What are 6 scientific facts about Spongilla lacustris?
Answer:
Physical characteristics: Freshwater sponges are crustlike, branched, or clumped. The texture is fragile and soft, and the color is whitish or green. Freshwater sponges have irregularly scattered and barely visible water-exit holes.
Geographic range: Freshwater sponges live in North America, Europe, and Asia.
Habitat: Freshwater sponges live in standing and running fresh water.
Diet: Freshwater sponges are filter feeders.
Behavior and reproduction: Scientists know little about how freshwater sponges behave. These sponges reproduce asexually by forming buds in late summer that spend the winter in a dormant state and emerge from the adult in the spring. Freshwater sponges reproduce sexually during the summer, giving birth to live larvae.
Explanation:
Answer:
Explanation:
1)spongilla belongs to phylum porifera
2)its whole body is covered with pores
3) they live in fresh water
4) respiration occur through whole body surface
5) extracellular and intracellular digestion occur
6) asexual reproduction reproduction occur through budding and sexual reproduction occur through the fusion of gametes
Photosynthesis and respiration can be thought of as
Answer:
Eating and digesting. Photosynthesis is used to make food, and respiration is used to turn that food into energy.
Answer:
Both photosynthesis and respiration can be thought of as a cycle.
Explanation:
These two cellular processes can be thought as a cycle since the products of one are used as the raw materials of the other.
Having an extra finger is rare, but controlled by a dominant gene. If a
normal parent and a heterozygote parent have a child, what is the
probability that they will have a child with an extra finger?
Answer:
if the child was meant to be a twin but then if the twins got mixed up with each other, the one that's
lucky to come out will have part of the other.
and if the other twin doesn't come out great the other either has to have a second head, 6th finger, etc. ...
Bile is needed to break down _____.
protein
starch
fat
sugar
Answer:
fat
Explanation:
Name the type of plant cell in which photosynthesis usually occurs. What structure allows CO2 in and O2 out? This is a two-part
question, you need two answers.
Use the editor to format your answer
I
Answer: The chloroplast is where photosynthesis usually occurs. The stomata is the structure within the chloroplast that let's Co2 in and 02 out.
Explanation:
How many gametes are produced at the end of Meiosis 2 and are they identical or different from the original cell?
Answer:
4 gametes
The cells that enter meiosis II are the ones made in meiosis I. These cells are haploid—have just one chromosome from each homologue pair—but their chromosomes still consist of two sister chromatids. In meiosis II, the sister chromatids separate, making haploid cells with non-duplicated chromosomes.
Explanation:
In order to be able to make proteins, RNA has to migrate or travel to the....
Answer:
In order to be able to make proteins, RNA has to migrate or travel to the cell cytoplasm.
Explanation:
RNA, specifically messenger RNA (mRNA) is responsible for carrying the genetic information needed for make proteins, so it must migrate from the cell nucleus to the cytoplasm.
DNA transcription and RNA synthesis, as well as maturation, occur in the cell nucleus. From there, the mRNA must travel to the cytoplasm to meet the ribosomes and initiate protein synthesis.
Cell membrane part 4!! please help will give brainlist
Answer:
A
Explanation:
I did the test.
Which of the following is an example of a luminous object?
sofa
orange
lamp
radio
What macromolecules is made up of fatty acids and is found in glycerol
Answer:
Lipids
Explanation:
I think lipids are the answer.
How does a bacteria become antibiotic resistant?
Answer:
Bacteria develop resistance mechanisms by using instructions provided by their DNA. Often, resistance genes are found within plasmids, small pieces of DNA that carry genetic instructions from one germ to another. This means that some bacteria can share their DNA and make other germs resistant.
What makes it possible for the plant to grow from the bricks
Answer:
Explanation:Most plants the manage to grow from bricks and or concrete are mostly weeds that do not need light to grow. They are 100% dependant on if they get any sun or not. If you put seeds under concrete they would not make it, if you put them in a crack in concrete they might have a chance it all depends on the light they get.
Decades ago farming was not a controversial subject. Today, people have very definite opinions as to how their food should be
produced. The three methods of farming are conventional, organic, and GMO farming. You have been assigned the task of creating a
table to compare and contrast the three methods. Choose ALL of the descriptors that could be placed in the Organic column.
es )
Answer: and also c
use of biological control, crop rotations and other techniques to manage weeds, insects and diseases
D) elimination of synthetic pesticides and fertilizers and other materials, such as hormones and antibiotics
E) yield is typically lower in an organic field than for a similar crop grown in a conventional or GM cropping system
the answer is actually c d and e not b
Explanation:
Cellular respiration is a process involving the breakdown of glucose molecules in order to generate energy for cellular activities. Given the general reaction below, which of the following best describes the products labeled x and y? C6H12O6 + O2 → _x___ + __y___ + energy
Answer:
x is CO2 and y is H2O
Explanation:
When glucose (C6H12O6) reacts with oxygen, carbon dioxide and water are produced. The balanced equation for this reaction is: If 12 moles of oxygen react, The reaction consumes moles of glucose (C6H12O6). The reaction produces moles of carbon dioxide and moles of water.
what happens during metaphase 1 that leads to genetic variation?
Answer: In metaphase I, the tetrads line themselves up at the metaphase plate and homologous pairs orient themselves randomly. This variation is due to independent assortment and crossing-over during meiosis, and random union of gametes during fertilization.
Explanation:
Answer:
In metaphase I, the tetrads line themselves up at the metaphase plate and homologous pairs orient themselves randomly. This variation is due to independent assortment and crossing-over during meiosis, and random union of gametes during fertilization. In metaphase I, the orientation of homologous pairs is random as they line up along the center of the cell. Each homologous pair can line up in two different ways. Differences in the homologous pairs' orientation in metaphase I lead to variation in how the chromosomes are separated and grouped together in anaphase I.
Changes in the orientation of tetrads along the center of the cell vary the combination of chromosomes in the resulting daughter cells.
Please help!!!!! Emergency
Answer:
11. Food Chain
12. Producers
13. I don't know, sorry
14. Tertiary consumers
15. Primary consumers
16. Grasshoppers
Explanation:
Answer:
For (11)D
(12)E
(13)A
(14)B
(15)D
(16)A
If a TT and tt allele make Tt, what does a Tt and tt allele make?
Answer:
Tt or tt
Explanation:
I wrote out a Punnett square :)
what does it mean to say early Earth was abiotic? someone plz help
Answer:
abiotic basically means NON LIVING (like water,soil, air)
so.. earlier like thousands of years back there was no life on earth thus it is said that earth was abiotic
but later on biosphere arrived through maybe cynobacteria...
1234
12) The law of conservation of energy states that energy cannot be created nor destroyed. Rather, energy can only be transferred from
one form to another. How does the law of conservation of energy apply to the process of cellular respiration? In your response, refer to
glucose and ATP?
Answer: A molecule of glucose, which has the chemical formula C6H12O6, carries a packet of chemical ... ATP is commonly referred to as the "energy currency" of the cell. ... Use this resource to answer the questions that follow.
Explanation:
is an infection a virus
Answer:
No
Explanation:
As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.
Answer:
no
Explanation:
definition of an infection is the process of infecting or the state of being infected or A disease caused by microorganisms that invade tissue.