There are holes in the end of the phloem tubes because Phloem consists of sieve tube cells and companion cells for conduction of food These sieve elements are placed end to end . At the the junction of two sieve elements there is a plate called sieve plates having circular pores.
Neurons communicate with other neurons in 3 phases: What are the 3 phases?
An idea that has been tested Widely,  is supported by extensive evidence, and is accepted by most scientist in a particular field of study, is called a(n)?
A. Hypothesis
B. Scientific law
C. Scientific variable
D. Theory
Answer:
D. Theory
Explanation:
In a typical animal, mitosis produces _________, while meiosis produces____________.
In a typical animal, mitosis produces two identical daughter cells, while meiosis produces four unique daughter cells.
Meiosis is a type of cell division that involves the parent chromosome being halved and then divided again to form four unique daughter cells which have only one copy of chromosome from the parent.
This occurs in sex cells such as the sperm and egg cells.
Mitosis is also a type of cell division but occurs with the parent cells to form two identical daughter cells.
This type of cell division have produces the same number of chromosomes the parents have and occurs in cells of the body which undergoes growth or during replacement of worn-out tissues.
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Which is NOT a function of the skin?
a.Insulation
b.Movement
c.Excretion
d.Vitamin D Production
Answer:
a.insulation
Explanation:
insulation does not fall under functions of skin
compare and contrast:
bacteria and protists
protists and fungi
bacteria and fungi
Answer:
Bacteria are single-celled microbes
Explanation:
The primary difference between them is their cellular organization. Bacteria are single-celled microbes and are prokaryotes, which means they're single-celled organisms lacking specialized organelles. ... In contrast, protists are mostly single-celled eukaryotic organisms that are not plants, fungi, or animals.
Colony collapse disorder is a natural phenomenon in which the majority of worker honeybees—bees that collect food for the hive—die at the same time. If several hives in a region experience this phenomenon, how could it affect the life cycle of flowering plants in the region?
Answer:
A decrease in honeybees can lead to fewer bees pollinating flowers, which could decrease the chances of flowering plants producing offspring.
Explanation:
Edmentum
a. Copy and complete the word equation for photosynthesis.
Carbon Dioxide +____----->____+______
b. explain how chlorophyll helps this reaction to happen.
Answer:
carbon dioxide + water + glucose + oxigen
Explanation:
Chlorophyll is responsible for the green color of plants, which through the process of photosynthesis transforms sunlight into natural chemical energy
Answer:
a. Carbon Dioxide + Water -----> Glucose +Oxygen
Sunlight
b. The light dependent reaction takes place within the thulakoid membrane and requires a steady stream of sunlight, hence the name light dependent reaction. The chlorophyll absorbs energy from the light waves, which is converted into chemical energy in the form of the molecules ATP and NADPH
carbon compound that stores and transmits genetic information
HELPPPPPPPPPPPPPPPP
organelle
DEFINITION:
Answer:
They are the organs of the cells
Explanation:
the end
Answer:
Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive
Explanation:
explain how eating a burger is the result of photosynthesis
Answer:
The bread, lettuce, tomatoes, and onions in the hamburger all came from plants. The food molecules in those plants were made as a result of the process of photosynthesis, using the energy in the sunlight. The hamburger meat came from a cow, which ate grass and other plants to obtain food.
what determines whether two proteins will bind to each other?
Answer:
They will bind to each other if they have complementary shapes and chemical properties.
Explanation:
If something were to complement each other, they would be more attracted to each other like magnets. For example, purines would bind with a complementary pyrimidine versus another purine.
Crossing over results in ________.
asexual reproduction
the random arrangement of homologous chromosomes throughout the cell during meiosis
the survival of the sperm as they travel to the egg
the exchange of genetic material between homologous chromosomes
please help asap test due in 10 min will bomb if I don't have right wander
Bears are known to hibernate during the winter and give birth to their cubs 1 point
in the spring. This is made possible because bears mate in the spring and
after a brief moment of embryo development, the embryo stops
development for several months. If the mother has enough stored energy
to last her and her babies through the winter, the embryo will implant and
continue to develop into a baby. What organic molecule would allow the
mother to have energy to allow the embryo to grow through the winter?
Water molecules because it is used during osmosis
Monomers because they are smaller units that makes up polymers
Proteins because it gives the body support
Lipids because lipids stores energy
Answer:
ufuddsiodpfofiffopOI
Explanation:
Michelle was curious about her mother's blood type. Michelle knew that her own blood type was o,
her father's blood type was A, and her two sisters and one brother both also had type A blood. How
could Michelle have type o when everyone else around her seems to have type A blood? Michelle is
really frustrated. Please help her out by making a possible Punnett square showing how this could
happen.
Blood type is determined by the I gene. IAIA and IAi determines A blood type. IBIB and IBi determines B blood type. ii determines 0 blood type. Michelle's mother must at least carry one recessive allele i.
--------------------------------
The blood type is determined by a gene, which is triallelic.
IA dominant over i. The person presents A type of antigens.IB dominant over i. The person presents B type of antigens.IA and IB are codominant. The person presents both types of antigens, A and B.i is the recessive allele. The person does not present any antigen.⇒ H0m0zyg0us dominant individuals IAIA, or heter0zyg0us Individuals IAi, will express the A blood type.
⇒ H0m0zyg0us dominant individuals IBIB, or heter0zyg0us Individuals IBi, will express the B blood type.
⇒ Individuals with h0m0zyg0us recessive genotype, ii will express the 0 blood type.
⇒ Individuals carrying IA and IB alleles will express the AB blood type.
To solve the problem, we will use this information.
We know that
Michelle is blood type 0 Father is blood type ABrother and sister are blood type AMother??⇒ If Michelle is blood type 0, then her genotype is ii. She must have received one recessive allele from her father and one from her mother.
⇒ This suggests that Michelle's father, who is blood type A, is heter0zyg0us IAi. He must have at least one dominant allele IA that determines his phenotype, and one i allele.
⇒ Michelle's brother and sisters are also type A. They might be either h0m0zyg0us dominant IAIA or heter0zyg0us IAi.
⇒ Michelle's mother should have at least one recessive allele i. She could be either IAi or IBi, or ii. There are three possible option for her genotype.
Let us make the Punnet squares to understand it better. We know the genotype of the father, but there are three options for the mother.
Option 1
Cross) father x mother
Parentals) IAi x IAi
Gametes) IA i IA i
Punnett square) IA i
IA IAIA IAi
i IAi ii
F1) 25% of the progeny is expected to be h0m0zyg0us dominant IAIA
50% of the progeny is expected to be heter0zygus IAi
25% of the progeny is expected to be h0m0zyg0us recessive ii
75% of the progeny is expected to be blood type A ⇒ IAIA and IAi ⇒ Sisters and brother
25% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle
Option 2
Cross) father x mother
Parentals) IAi x IBi
Gametes) IA i IB i
Punnett square) IA i
IB IBIA IBi
i IAi ii
F1) 25% of the progeny is expected to be IAIB
25% of the progeny is expected to be heter0zygus IAi
25% of the progeny is expected to be heter0zygus IBi
25% of the progeny is expected to be h0m0zyg0us recessive ii
25% of the progeny is expected to be blood type AB ⇒ IAIB
25% of the progeny is expected to be blood type A ⇒ IAi ⇒ Sisters and brother
25% of the progeny is expected to be blood type B ⇒ IBi
25% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle
Option 3
Cross) father x mother
Parentals) IAi x ii
Gametes) IA i i i
Punnett square) IA i
i IAi ii
i IAi ii
F1) 50% of the progeny is expected to be heter0zygus IAi
25% of the progeny is expected to be h0m0zyg0us recessive ii
50% of the progeny is expected to be blood type A ⇒ IAi ⇒ Sisters and brother
50% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle
Despite the fact we can not determine for sure the mother's genotype, we know that she carries at least one recessive allele, which is why Michelle's blood type is 0.
------------------------------
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Which of the following groups is difficult to define into species using the Biological Species concept?
A. Vertebrates
B. Asexually reproducing organisms
C. Sexually reproducing organisms
D. Insects
Asexually reproducing organisms groups are difficult to define into species using the Biological Species Concept.
Why is it difficult to define a species using the concept of a species?In summary, the main limitation of the concept of organisms is that they are independent of ectopic speciation and are not applicable to (1) Fossil species. (2) Organisms with asexual reproduction or extensive self-fertilization. (3) Sexual organisms with an open mating system (seed that mates freely).
Asexual reproduction is a type of reproduction that occurs without cell or germ cell interaction. In the case of asexual reproduction, the organism does not need a spouse to reproduce. Organisms that undergo asexual reproduction to produce offspring are called asexual species.
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the system that maintains the human species from generation to generation is the
The system that maintains the human species from generation to generation is the REPRODUCTIVE system. This system is responsible for producing male and female gametes.
The reproductive system is an organ system by which humans produce male (sperm) and female (ovule) gametic cells.
Male and female gametes fuse during fertilization to produce a diploid zygote that develops into an adult individual.
In women, the reproductive system is composed of the ovaries, uterus, fallopian tubes, cervix, and vagina.
In men, the reproductive system includes the testes, prostate, and penis.
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5. Juan’s cell phone company charges $35 a month for the phone service plus $0.50 for each text message. How many text messages does Juan send in a month if his bill was $52?
Answer:
34
Explanation:
Total Cost = Fixed Charge + 0.50 * number of text messages
Total Cost = 52 dollars.
text Messages = x
Fixed charge = 35 dollars.
Equation
Total Cost = Fixed Charge + number of text message * 0.50
Solution
52 = 35 + 0.50 * x Subtract 35 from both sides
52 - 35 = 35-35 + 0.50x Combine
17 = 0.50x Divide by 0.50
17/0,50 = 0.50*x/0.50
x = 34 text messages
Which description best explains Watson and Crick's DNA model?
A. DNA is a single–stranded molecule that has nitrogenous bases toward its exterior.
B. DNA is a double helix made of two strands linked together with hydrogen bonds.
C. DNA is a double helix that contains nitrogenous bases toward its exterior.
Answer:
A . ..............,.................
Answer:
DNA is your saliva
Explanation:
IN YOUR CLASS
What will happen if the function of the arteries is the same as the veins?
Answer:
Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.
Explanation:
What temperature is indicated on each of the thermometers below?
Answer:
1. 0 degree 2. 25 degree 3. 20 degree 4. 45 degree 5. 1 degree
True Or False?
Organic materials are the remains of once-living organisms
Explanation:
trueeeeeeeeeeeeeeeeeeeeee
The products of photosynthesis are glucose and ___
Answer:
oxygen
Explanation:
The products of photosynthesis are glucose and oxygen.
Answer:
Oxygen
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product.
呢额度和老婆俄哦呢 就可发热俄莆田市俄
Answer:
那么问题是什么
我不明白
祝你今天过得愉快...
what name is given to the process in which pre-mrna is edited into mrna?
what would happen if I had a cell made of 30% glucose is floating into a beaker that contains 0% glucose. Would it a. swell b. stay the same c. shrink d burst open
Through osmosis, water can freely pass the membrane from the most diluted side to the less diluted one. Option a. swell
What is osmosis?
Osmosis is the simple passive transport of water molecules that occurs when two dilutions of different concentrations -in this example, the interior of the cell and the beaker content- are separated by a semipermeable membrane.
The membrane allows the pass of water but not solute (glucose). Hence, water can move from the most diluted side to the less diluted one. In other words, water moves from the less concentrated side to the more concentrated side (conserning the solute).
According to this information, the interior of the cell is more concentrated and less diluted than its exterior. Hence, water will move from the extracellular space foward to the cell interior, and the cell will swell.
Option a. swell
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give two characteristics of the endordermis of young root
Answer:
The endodermis is the central, innermost layer of cortex in land plants.The endodermis helps regulate the movement of water, ions and hormones into and out of the vascular system. It may also store starch, be involved in perception of gravity and protect the plant against toxins moving into the vascular system.
QUESTION: What are the building blocks of all organisms?
ANSWER:
Answer:
Cells
Explanation:
Answer:
Cells
Explanation:
Organisms are created by different types of tissues. These are composed of cells. Animals are made of animal cells which are round, and plants are made of plant cells which are rectangular and have cell walls.
Is the carbon used in photosynthesis balanced by carbon given
off by cellular respiration?
Answer: In this way, photosynthesis and cellular respiration are linked in the carbon cycle. Photosynthesis requires atmospheric carbon, while cellular respiration returns carbon to the atmosphere, and vice versa for oxygen.
Explanation:
(giving brainliest and 30 points)
1. Discuss the environmental l issues to creating artificial life
2. Discuss the Social issues to creating artificial life
Answer:
1.the transition to life, the evolutionary potential of life, and the relation between life and mind and culture.
2.The creation of artificial life would have to consist, we assume, in the creation of an artificial living entity, henceforth an ‘artificial organism’.1 We will take an organism to be artificial just in case either
Explanation:
#keepsafe
Gregor Mendel experimented on Mango plant to study genetics.
True or false
Answer:
I think false
Explanation:
Im pretty sure he experimented with Pea plants