Answers
Answer:
D. It controls the entry and exit of substances.
Explanation:
The cell membrane provides protection for the cell, transporting nutrients in and carrying toxic substances out.
Related Questions
How does the declining biodiversity affect us?
Answers
Answer:
Declining biodiversity can affect us because it can have changes in ecosystem services affect livelihoods, income, local migration and, on occasion, may even cause or exacerbate political conflict.
Explanation:
Hope it helps mark me brainlist plzzzzzzz
3. Which of these two longitudinal waves in the Figure below has
greater amplitude?
Answers
Answer:
the second one because the first one has very little amplitude compared to the second one.
Answer:
Wave b
Explanation:
Which of the following cell organelles helps to transport large extracellular molecules into the cell?
a. Vesicles
b. Lysosome
c. Ribosome
d. Mitochondria
Answers
Answer:
A. Vesicles
Explanation:
How can scientists use owl pellets to study the skeletal systems of small mammals in a specific ecosystem
Answers
Answer:
They use them so that they can see what type of organisms live there.
Explanation:
How is DNA recovered from hair?
Answers
Answer:
A simple method to extract DNA from hair shafts was developed by using enzymatic laundry powder at the first step of the process. The whole extraction can be finished in less than 2 hours. The simple extraction reagent proposed here contains only two cheap components: ordinary enzymatic laundry powder and PCR buffer
Explanation:
Fill in box 3.
(This is about DNA Replication)
Answers
Answer:
accdcecccehis
Explanation:
A certain wastewater treatment plant uses aerobic bacteria, anaerobic bacteria and archaebacteria during secondary treatment of sewage. Unfortunately, during a bad bluzard the sludge digester froze, killing the microbes inside. What is likely to result? a) Floc levels will diminish b) Solid material will not be effectively fitered out c) Methane production will go down d) Floc will not be effectivelyftered out
Answers
Answer:
The correct option is C
Explanation:
Anaerobic bacteria used in sewage treatment helps to reduce the volume/amount of sludge in the sewage thereby producing methane gas from it. Some companies produce there own (not for sale) methane gas (as an alternate source of energy) through this process. Thus, a decrease in the amount of this bacteria (perhaps through death as described in the question) will lead to a decreased production of methane gas.
5
The type of cell division in which each daughter cell receives the same number of
chromosomes the parent cell had is
(1 Point)
a mitosis
b. melos
c. spermatogenesis
d. oogenes
Answers
The letters that make-up the genetic code for a trait
O a. genotype
O b. trait
O c. heterozygous
O d. phenotype
Answers
Examine a two-gene cross in which a mutation in HERC2 is epistatic to the OCA2 gene. In a cross between a blue-eyed OOhh woman and a blue-eyed ooHH man, what eye color will the progeny have?
a. 9 brown eyes: 7 blue eyes
b. 3 brown eyes: 1 blue eyes
c. All blue eyes
d. All brown eyes
Answers
In recessive epistasis, the epistatic gene -HERC2- in h0m0zyg0us recessive state inhibits the expression of the hypostatic gene -OCA2-. In the example, the F1 is heter0zyg0us for both genes. Option D. All brown eyes.
Epistasis
When talking about epistasis, we are referring to an interruption.
These are interactions between genes located in different loci in the same chromosome.
An epistatic gene can alter, influence, or suppress the expression of a hypostatic gene.
When the epistatic gene is recessive, the interaction is known as recessive epistasis.
Available data:Two genesHERC2 gene is epistatic to the OCA2 geneCross: blue-eyed OOhh woman and a blue-eyed ooHH manWe will assume that
H allele expresses colorh allele inhibits colorO allele expresses browno allele expresses blue.Genotypes Phenotypes
HHOO, HhOO, HHOo, HhOo Brown eyes
HHoo, Hhoo Blue eyes
hhOO, hhOo, hhoo Blue eyes
Individuals that are h0m0zyg0us recessive for HERC2 have blue eyes regardless of the genotype of the OCA2 gene.
This is, the genotype hh inhibits the expression of OO, Oo and oo.
Cross:
Parentals) OOhh x ooHH
Gametes) Oh, Oh, Oh, Oh
oH, oH, oH, oH
Punnett square) Oh Oh Oh Oh
oH OoHh OoHh OoHh OoHh
oH OoHh OoHh OoHh OoHh
oH OoHh OoHh OoHh OoHh
oH OoHh OoHh OoHh OoHh
F1) 100% of the progeny will be heter0zyg0us for both genes, expressing brown eye color.
Among the progeny, neither of the genes is in h0m0zyg0us recessive estate, meaning that the expression of brown eyes is possible.
The eye color among the progeny is expected to be 100% brown eyes. Option D.
You can learn more about epistasis at
https://brainly.com/question/1185116
https://brainly.com/question/26211354
A molecule _____..........
Answers
A cell with mitochondria defect will have issues with Select one : a. ATP synthesis O bacid generation . O c. fermentation. O d. glucose generation .
Answers
Answer:
ATP synthesis
Explanation:
The mitochondria is responsible for making ATP so if a cell had a defective mitochondria it would have difficulty creating ATP or "ATP synthesis"
Which of the following adaptations is characteristic of plants in the taiga biome?
A) low growing
B) perennial
C) waxy needles
D) survive on limited nutrients
Answers
A disruption in the soil cycle results in increased runoff into the ocean.
O True
False
Answers
True
Explanation:
What determines how much energy a human can receive from food?
A. How much oxygen the food contains
B. How much nitrogen the food contains
C. How much energy the food molecules have
D. How much the food molecules weigh
Answers
What produces sperm and eggs?
A. spores
B. an adult moss plant
Answers
What experiment conducted by andre jagendorf with isolated thylakoid membranes proved that possibles solutions?A. Blue and red light, but not green, caused photosynthetic production of oxygenB. The ATP synthase complex functioned as a molecular rotary engineC. Molecular oxygen (O2) is derived from water, not CO2D. ATP and NADPH are the direct products of the light reactions, not sugar.E. ATP synthesis could be energized by a proton gradient.
Answers
Answer:
The correct answer is option E, that is, synthesis of ATP could be mediated by a proton gradient.
Explanation:
Andre Jagendorf inserted chloroplasts for many hours within a buffer of pH 4 and then instantaneously mixed that with the buffer of pH 8. He came to known that in the stroma, a change in pH was witnessed, that is, it moved to 8 while in the thylakoid space there was no change, that is, the pH remained at 4. He then isolated the thylakoid and put it in the dark, he noticed that it produced ATP. This proves the hypothesis of Peter Mitchell that the production of ATP is mediated by proton-motive force.
One of the reasons that participants in experiments are not told what the
researcher is testing is because the participants might act differently if they
knew. When this happens it is known as the:
Answers
Answer:
Placebo Effect
Explanation:
Answer:
hawthorne effect
Explanation:
How does the presence of permafrost affect tundra plant life?
A. It prevents all roots from growing, so only lichens can grow.
B. It provides moisture for roots to grow deep, allowing many types of plant life.
c. It only allows shallow root growth, so large plants cannot grow as they normally would.
D. It leaches minerals from the top layer of soil, preventing most plants from growing.
Answers
I hope I helped
Answer: C
It only allows shallow root growth, so large plants cannot grow as they normally would.
how are genes chromosomes and heredity related to one another?
Answers
Answer:
These two copies of the gene contained in your chromosomes influence the way your cells work. The two alleles in a gene pair are inherited, one from each parent. Alleles interact with each other in different ways. These are called inheritance patterns.
Explanation:
sorry if this is wrong bc i know you need a good answer but i hope this helps!
What are the symptoms of anorexia?
Answers
Answer:
A low body mass index for one's age and height.
Amenorrhea, a symptom that occurs after prolonged weight loss; causing menstruation to stop, hair to become brittle, and skin to become yellow and unhealthy.
Fear of even the slightest weight gain; taking all precautionary measures to avoid weight gain or becoming "overweight".
Rapid, continuous weight loss.
Lanugo: soft, fine hair growing over the face and body.
An obsession with counting calories and monitoring fat contents of food.
Preoccupation with food, recipes, or cooking; may cook elaborate dinners for others, but not eat the food themselves or consume a very small portion.
Food restrictions despite being underweight or at a healthy weight.
Food rituals, such as cutting food into tiny pieces, refusing to eat around others and hiding or discarding of food.
Purging: May use laxatives, diet pills, ipecac syrup, or water pills to flush food out of their system after eating or may engage in self-induced vomiting though this is a more common symptom of bulimia.
Excessive exercise including micro-exercising, for example making small persistent movements of fingers or toes.
Perception of self as overweight, in contradiction to an underweight reality.
Intolerance to cold and frequent complaints of being cold; body temperature may lower (hypothermia) in an effort to conserve energy due to malnutrition.
Hypotension or orthostatic hypotension.
Bradycardia or tachycardia.
Depression, anxiety disorders and insomnia.
Solitude: may avoid friends and family and become more withdrawn and secretive.
Abdominal distension.
Halitosis (from vomiting or starvation-induced ketosis).
Dry hair and skin, as well as hair thinning.
Chronic fatigue.
Rapid mood swings.
Having feet discoloration causing an orange appearance.
Having severe muscle tension, aches and pains.
Evidence/habits of self harming or self-loathing.
Admiration of thinner people.
Infertility.
Explanation:
Answer:
Explanation:
Extreme weight loss
Thin appearance
Abnormal blood counts
Fatigue
Insomnia
Dizziness or fainting
Bluish discoloration of the fingers
Hair that thins, breaks or falls out
Soft, downy hair covering the body
Amenorrhea (absence of menstruation)
Constipation
Dry or yellowish skin
Intolerance of cold
Irregular heart rhythms
Low blood pressure
Dehydration
Osteoporosis
Swelling of arms or legs
How does cellular respiration happen?
Answers
Answer:
Explanation:
Hello there! Cellular respiration is the process in which the body breaks down sugar, glucose, within the body. When this glucose is broken down it will be transformed into ATP, Adenosine triphosphate, the energy used within almost all bodily processes. Although the means by which the body breaks down this sugar is rather complex it would be easiest to understand the chemical reactions that make up the process.
one of the many chemical reactions in cellular respiration is as follows:
C6H12O6+6O2⟶6CO2+6H2O+Energy
In the reaction above we see a sugar, C6H12O6, reacting with carbon dioxide. When these two products completely react they will produce water, H2O, carbon dioxide, CO2, and ATP, labeled as energy.
Hope this helps!
-HM
Describe the two major types of smooth muscle
Answers
SINGLE UNIT SMOOTH MUSCLES- make up the wall of hollow organs
MULTIUNIT SMOOTH MUSCLES-found around large blood vessels
question : what’s the order?
Answers
Answer: i believe its like this:
The top one is Sugars (C6H12O6)
light energy+CO2-> H2O+O2
- The electrons in the outermost ring that are used to determine reactivity are called
Answers
Answer:
Valence Electrons
A student is investigating gas production of water plants of various sizes. She predicts that larger plants produce more oxygen. She places a test tube and funnel upside down over a water plant submerged in water. The test tube collects gas the plant produces when in sunlight. A diagram of her setup is shown below.
In this experiment, what is the independent variable?
A.The number of gas bubbles
B. The varying size of the plants
C. The test tube used to collect gas
D. The temperature of water in the beaker
Answers
Answer: The test tube used to collect gas (C)
Explanation: If you illuminate a plant (I presume you are using an aquatic/water plant) it will produce oxygen. You can put the plant under a funnel and collect the bubbles in an upturned test tube. If the gas is collected fresh, it will relight a glowing splint. However, if the gas takes more than 24 hours to collect, or if you leave it for several hours before testing it, you may not relight a glowing splint.
Question 1 of 50
Which of the following choices is an example of a variable cost?
fabric used to sew the dresses a company sells
O the cost of renting a factory
money paid to replace a broken computer screen
Answers
3. What atoms are parts of the process of photosynthesis?
Answers
Answer
Photosynthesis involves three elements: carbon, hydrogen, and oxygen. You have seen that the products of photosynthesis are oxygen and glucose. Their chemical formulas are shown below.
Answer:
carbon, hydrogen, and oxygen
Explanation:
which vocabulary goes with which letter
Answers
Answer:
its blurry
Explanation:
Answer:
e goes next to e and c does next to b
Explanation:
cause u have too look wiseltyIn photosynthesis, the energy from the sun eventually gets converted into chemical energy in the form of ATP and sugar that the plant can use directly to fuel its biological processes. Which of the following correctly describes how plants use glucose after it is produced?
Answers:
Glucose enters the mitochondria for production of ATP.
Solar energy breaks apart glucose forming pyruvate.
The energy in glucose is never used by the plant.
Glucose is broken down into its components ATP and H ions.
Answers
Answer:
Glucose enters the mitochondria for production of ATP.
Explanation:
Photosynthesis is the process through which solar energy is used to make glucose.
To generate chemical energy for cellular processes, glucose is broken down through cellular respiration in the mitochondria. This generates large amounts of ATP, which acts a source of energy to power reactions in the cell.
Excess glucose is stored as starch in plant cells