Answers
Answer:
materials move against a concentration gradient
Related Questions
Where on earth did life first begin?
Answers
Answer:
As of 2017, microfossils (fossilised microorganisms) within hydrothermal-vent precipitates dated 3.77 to 4.28 Gya in rocks in Quebec may harbour the oldest record of life on Earth, suggesting life started soon after ocean formation 4.4 Gya during the Hadean Eon.
Explanation:
brainliest plsssssssss
Which of these is an effect of desertification? A loss of fertile land to farm B more farmland to grow food C more biodiversity worldwide D cooler global temperatures
Answers
please help me:( please
Answers
Answer:
1. F
2.T
3.F
Explanation:
Suppose you are determining the growth rate of two species of plants. Species A is 25 cm tall and grows 3 cm per month. Species B is 10 cm tall and grows 8 cm per month. Which system of equations models the height of each species H(d) as a function of days d. H(d) = 25 + 3d H(d) = 10 + 8d H(d) = 3 + 25d H(d) = 8 + 10d H(d) = 25 + 3d H(d) = 8 + 10d H(d) = 2 + 8d H(d) = 25 + 10d
Answers
Answer:
H(A) = 25 + 3m and H(B) = 10 + 8m
Explanation:
Let H(A) is the height of species A as a function of months m while H(B) is height of species B as a function of months m.
For Species A,
H(A) = 25 + 3m
For species B,
H(B) = 10 + 8m
Hence, this is the required solution.
Where are the 36 ATP come from during cellular respiration?
A. 2 from glycolysis, 2 from oxidation of pyruvate and 32 from Krebs cycle
B. 2 from glycolysis, 2 from Krebs cycle and 32 from electron transport chain
C. 2 from glycolysis, 2 from oxidation of pyruvate and 32 from electron transport chain
D. 2 from oxidation of pyruvate, 2 from Krebs cycle and 32 from electron transport chain
Answers
What type of sex change is exhibited by great white sharks and what species survival advantage is provided by this sex change?
Answers
What happens during the 4 stages of mitosis
Answers
Answer:
Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. Some textbooks list five, breaking prophase into an early phase (called prophase) and a late phase (called prometaphase).
1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3) Anaphase: sister chromatids are pulled to opposite poles of the cell 4) Telophase: nuclear envelope ...
Explanation:
Brainliest plz trying to level upwhich stage of cellular respiration extracts the most energy
Answers
glycolysis
Explanation:
Here’s a breakdown of how much energy were produced during glycolysis:
1. 2 ATPs
2. 2 NADHs
3. 2 Pyruvate Molecules (this itself enters the citric acid cycle to produce MORE energy aka nonstop)
Is the following statement true or false?
A trait that is favored in one place or environment may be useless somewhere else.
O True
O False
PLEASE HELP FAST IM TIMED!!!!!
Answers
The answer will be false i an sure of it
According to the text, what gas is generated in especially large amounts when
we burn fossil fuels?
A. carbon dioxide
B. methane
С. carbon monoxide
D. sulfur dioxide
Answers
Answer:
A. Carbon dioxide
Explanation:
When burning anything it will release some kind of gas. When it comes to fossil fuels, it releases large amounts of carbon dioxide. Although these fossil fuels are good for energy they will hurt the environment and atmosphere.
Answer:
carbon dioxide
Explanation:
have a great day :)
HELP ME I WILL GIVE BRAINIST AWANERR AND On a separate sheet of paper, choose three animals, one that lives in water, one that lives on
land, and one that flies. Explain how each one moves and how it is uniquely adapted for
movement within its environment.
Answers
Answer and Explanation:
Land - Lion
Water - Sealion
Flies - Bees
Lions have strong retractable jaws that help them eat their prey and that way they adapt to their enviroment.
The Sealion's thick, oily fur and a layer of blubber allow them to keep a high temperature in cold waters.
A Bees body carries an electrostatic charge that attracts pollen and that way they can keep it in them.
Hope this Helps! Have a GREAT day!
Name the stages of mitosis!
Answers
Answer:
Today, mitosis is understood to involve five phases, based on the physical state of the chromosomes and spindle. These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
Explanation:
Answer: Mitosis actually occurs in four phases. The phases are called prophase, metaphase, anaphase, and telophase
When the trading of equivalent sections of DNA between homologous chromosomes occurs during crossing over, it is called:
A. reciprocal exchange.
B. chromosomal exchange.
C. allele exchange.
D. similar crossing-over.
Answers
Answer:
chromosomal exchange i hope it helps you
Which goes where ? Mitosis Vs. Meiosis
Answers
Answer:
Mitosis, Meiosis, and both are written below
Explanation:
Mitosis: produces more somatic (body) cells, purpose is for healing and growing, the daughter cells are exact replicas
This is because mitosis occurs in body cells and is used for growth, so all the daughter cells are the same.Meiosis: results in sex cells (gametes), results in eggs and sperm, purpose is for creating new individuals (eventually), each daughter cell is different, has 2 separate division stages
This is because meiosis occurs in gametes and is used in reproduction.Both: Chromosomes need to replicate before the whole process begins, a form of reproduction
This is because both are reproducing (they are dividing) and DNA must be replicated so each daughter cell has it.The gas giants all have many moons and rings
True or false
Answers
Answer:
true.
Explanation:
I have a freind that works at nasa and she said it is true.
HELP ASAP!!
Which scenario is an example of an environmental problem becoming an
economic problem?
O A. Excessive pollution decreases a community's access to affordable
clean water.
O B. Destruction of habitat reduces a population of animals in a remote
ecosystem.
O C. Deforestation creates farmland that allows a community to
produce more crops.
O D. Excessive manufacturing of a product reduces demand in a
saturated market.
Answers
Answer: A, excessive pollution decreases a communities access to affordable clean water.
Explanation: ap3x
Answer:
O A. Excessive pollution decreases a community's access to affordable
clean water.
Explanation:
Above answer is absolutely correct! I just want to assure you :)
What is the difference between a plant cell and a animal cell!
I need from you’re pure knowledge not a copy and paste for the internet.
Answers
Answer:
There are a few differences between plant cells and animal cells, such as size, shape, energy storage, proteins, differentiation, growth, the cell wall and plenty more!
Explanation:
Hope this is helpful. If you need more differences or need me to explain let me know!!
11. How has our misguided, or inappropriate, use of antibiotics led to the development of organisms like
MRSA and VRSA?
Answers
Answer:
1. use of the wrong antibiotic
2. use of insufficient concentration of the right antibiotic
Explanation:
MRSA means Methicillin-resistant staphylococcus aureus
VRSA means Vancomycin-resistant Staphylococcus aureus
These are resistant forms of the bacteria Staphylococcus aureus to the antibiotics mentioned.
Bacterial resistance to antibiotics occurs when bacteria develop mechanisms that protect them against the effects of previously effective antibiotics.
Misguided and inappropriate use of antibiotics results in resistance, and they mainly occur as a result of two activities:
1. Use of wrong antibiotics: antibiotics are chosen using a microbiological technique called 'sensitivity testing', to determine which antibiotic is effective against a bacterium. However, when antibiotics are taken without proper sensitivity testing, the bacteria develop resistance against such antibiotics.
2. Use of inadequate concentration of the right antibiotic: This involves using less than the minimum inhibitory of minimum bactericidal concentration of an antibiotic against a bacteria. In this case, the organism has ample time to evolve in the presence of the antibiotic, hence the occurrence of resistance.
what is the scientific name for human??
Answers
Answer:
HomoSapiens
Explanation:
Regulation of body temperature in humans is most closely associated with the
A) production of gametes
B) evaporation of sweat
C) absorption of carbon dioxide
D) production of hydrolytic enzymes
Answers
Answer:
b
Explanation:
Regulation of body temperature in humans is most closely associated with the evaporation of sweat that is present in option B, as the higher the body temperature, the more sweat is needed to maintain homeostasis.
What is the need for homeostasis in the body?The body maintains a particular internal temperature irrespective of changes in the external environment, and this is possible because of the homeostasis in the body, which is important because many of the body's processes are temperature and pH sensitive, such as the enzymatic function, the alkalinity of blood, etc.
Hence, regulation of body temperature in humans is most closely associated with the evaporation of sweat that is present in option B, as the higher the body temperature, the more sweat is needed to maintain homeostasis.
Find out more about homeostasis in the body here.
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How do the homologous chromosomes compare to each other ?
Answers
Answer:
The two chromosomes in a homologous pair are very similar to one another and have the same size and shape. Most importantly, they carry the same type of genetic information: that is, they have the same genes in the same locations.
Explanation:
3. Which feature is commonly formed
at a plate boundary where oceanic
crust converges with continental crust?
(1) a mid ocean ridge (2) an ocean trench (3) a transform fault (4) new oceanic crust
Answers
Answer:
2) an ocean trench
Explanation:
Ocean trench is a commonly formed at a plate boundary where oceanic crust converges with continental crust.
What is Ocean Trench?Long, narrow depressions on the seafloor are known as ocean trenches. These chasms are among the deepest natural places on Earth and the deepest portions of the ocean.
Every ocean basin on the planet has ocean trenches, but the deepest ones encircle the Pacific Ocean as part of the so-called "Ring of Fire," which is also home to active volcanoes and earthquake-prone regions. Tectonic activity, which refers to the movement of the Earth's lithosphere, is what causes ocean trenches.
Ocean trenches in particular are a characteristic of convergent plate borders, which occur where two or more tectonic plates collide. In a process known as subduction, dense lithosphere melts or slides beneath less dense lithosphere along numerous convergent plate borders, forming a trench.
Therefore, Ocean trench is a commonly formed at a plate boundary where oceanic crust converges with continental crust.
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Which type of organisms do photosynthesis?
Answers
Answer:
producers
Explanation:
hope this helps
Answer: Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis.
Explanation: Because they use light to manufacture their own food, they are called photoautotrophs (literally, “self-feeders using light”).
I put 100 points into this..
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
Answers
Answer:
yessssir the cornea gets oxygen directly from the air not the blood
provides protection and a space to move and breathe *
Umbilical cord
Amniotic sac
Amniotic fluid
placenta
Answers
Which of the following processes does not occur during Prophase II of Meiosis Il?
A. DNA condenses into tightly wound chromosomes
B. The nuclear membrane dissolves
C. Microtubules form
D. Homologous chromosomes pair up
Answers
Which of the following might be an adaptation for a predator? AS SOON AS POSSIBLE NEED HELP PLS THX
Answers
Answer:
we need the answers
Explanation:
Answer:
Many predators have adaptations that help them survive in the wild. For example, the snake shown below has camoflauge coloring to look like its surroundings. This gives it the element of surprise when going to attack its prey. These adaptations help the predator in hunting for food. Predators have "weapons", or adaptations, that help them hunt and kill prey. Predators' three main "weapons" are teeth, claws, and jaws. The lion below has all 3 of these "weapons" or adaptations that are used for catching its prey. A lion has sharp claws for catching and grabbing hold prey such as a zebra, and strong jaws and teeth for biting and killing the zebra and for ripping off and chewing the meat.
Explanation:
Hope this helps.
4. Why does cell division take place in single celled organisms?
A In order for organisms to grow
B.te reproduce and pass along genetic information
C.to enable the organisms to heal injured tissues
D.to make specialized cells for different functions
Answers
Answer:
A) In order for organisms to grow.
Explanation:
Tell me if I am wrong. I hope this helps :)
Cell division in a cell takes place in the single-celled organisms to reproduce and pass along the genetic information of the cell. Thus, the correct option is B.
What is Cell division?Cell division is the process of division of cell through which a parent cell divides into two daughter cells with equal genetic content which are similar to the parent cell. Cell division generally occurs as a part of a larger cell cycle in which the cell grows in size and the cell replicates the chromosomal material before it is undergoing cell division.
In the unicellular organisms, cellular division is a significant process through which a unicellular organism undergoes development and result into the formation of a new organism with genetic material which is similar to the parent cell. In the multicellular organisms, process of cellular division helps in maintaining a balance between the genetic material such as the DNA and the RNA contents as well as the nuclear and cytoplasmic contents of the cell.
Therefore, the correct option is B.
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Describe the ways mutations can affect DNA and chromosomes.
Answers
Mutations can also appear in chromosomes altering their number and structure. There are four types of mutations - deletion, duplication, inversion, and translocation. In deletion, a whole or one part of a chromosome is lost. Duplication presents an extra copy of a whole or one part of a chromosome. In an inversion, parts of a chromosome change order, while in translocation a part of one chromosome detaches and then connects to another.
hope this helps
The mutation affects DNA and chromosomes by changes in the sequence of DNA or changes in the gene present on the chromosome.
What is mutation?The mutation is a sudden change in the structure of chromosomes or DNA. The smaller mutation affects the nucleotide base in DNA, while the larger mutation affects the genes present on the chromosomes.
The substance which causes mutation is known as mutagens. Mutation can cause problems in growth and development and affects the functioning of the body. When changes occur in chromosomes or DNA, they cause changes in the protein. Due to this, a different kind of protein is produced.
The mutation is caused by the insertion, duplication, deletion, and substitutions of a DNA sequence. Thus, mutation can affect DNA and chromosome in many ways.
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where is the fertilization in plant take place
Answers
Fertilization takes part in the ovary of a female flower. Wind or pollinators carry the pollen from the male anthers to the female flower parts. After the pollen lands on the stigma, a pollen tube forms, and male reproductive material travels down the style and into the ovary, where it fertilizes an ovule.
Answer:
Fertilization occurs when one of the sperm cells fuses with the egg inside of an ovule. It occurs in ovary of female flower
Explanation:
After pollen grains land on the stigma, a pollen tube grows from the pollen grain, through the style, and into the ovary. Sperm cells inside the pollen grain travel down the pollen tube and into the ovary which contains the ovules.
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