Answer:
When the ovum is fertilized by pollen tube core, it starts a process of differentiation which leads to the seed generation. In angiosperms, the fruit formation occurs from the ovary of flowers, simultaneously and in a similar way to the formation of seeds.
Explanation:
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production of oxygen during photosynthesis
Answer:
c
Explanation:
What is the term used for how antibiotics work?
A. Bacteriostatic
C. Bacteriosis
D. Bacteriocida
Answer:
I think it's bacteriostatic.
Whats the answer? I need help
Answer:
Its 26 I'd assume sorry if I'm wrong it was kind of hard to read the question.
Production of oxygen during photosynthesis (needs to be correct)
Answer:
Occurs during the light-dependent reactions
Explanation:
Which of the following pairs of characteristics is true of sexual reproduction?
A. It has no effect on genetic variation, and its processes are
evolutionarily diversified in eukaryotes.
B. It increases genetic variation, and its processes are evolutionarily
diversified in eukaryotes.
C. It has no effect on genetic variation, and its processes are
evolutionarily conserved in eukaryotes.
D. It increases genetic variation, and its processes are evolutionarily
conserved in eukaryotes.
Answer: Abstract The genetic variation in a partially asexual organism is investigated by two ... These results apply to large populations with stable reproductive systems. ... Asexuality affects this variation in two different ways. ... in their means, the resulting combined distribution will not have two distinct peaks but ...
Explanation:
Answer
The answer is B
explanation
CLICK HERE PLEASE HELP
Answer:
step 3
Explanation:
the girl was observing a slide of muscle under microscope identified the muscle of striated on the basis of
Answer:
I think ur and is C. and sorry, I got late
EXPERIMENT 1: How many fish with blue tags
were recovered from the first mark and
recapture experiment?
Answer:
640 fish i think
At which point during meiosis do haploid cells first appear?
A. metaphase I
B. anaphasel
c. metaphase II
D. anaphase II
Answer:
D. anaphase II
Explanation:
The telophase is followed by short interphase in which, however, no DNA synthesis takes place, so this phase is not real interphase, which is why it is also called interkinesis. It is followed by another meiotic division, which also consists of four phases marked as prophase II, metaphase II, anaphase II when the spindle fibers pull the chromatids for the opposite poles and telophase II and represent a true mitotic division.
D. anaphase II
Haploid gametes are produced during meiosis, which is a type of cell division that reduces the number of chromosomes in a parent diploid cell by half.
The telophase is followed by short interphase in which, however, no DNA synthesis takes place, so this phase is not real interphase, which is why it is also called inter-kinesis.
It is followed by another meiotic division,
Prophase II: Starting cells are the haploid cells made in meiosis I. Chromosomes condense. Metaphase II: Chromosomes line up at the metaphase plate. Anaphase II: Sister chromatids separate to opposite ends of the cell. Telophase II: Newly forming gametes are haploid, and each chromosome now has just one chromatid.Therefore, correct option is D.
Learn more:
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Semi-conservative, daughter molecules have 1 old and 1 new strands, phosphate, 5 carbon sugar, nucleic acid
The pyrimidine bases are?
Answer:
Thymine and Cytosine
Explanation:
Genes are stored within DNA or deoxyribonucleic acids- these are long-chain, macromolecules that form a double helix. They are made up of nucleotides, special monomers made up of nucleotides comprise, 5-Carbon deoxyribose sugar, a nitrogenous base (adenine, guanine thymine, and cytosine) and a phosphate group.
The nitrogenous bases pair up via hydrogen bonding. The pyrimidine bases include cytosine and thymine. In base-pair formation, Adenine forms double bonds with thymine, and cytosine bonds with guanine. These pyrimidines are 6 carbon ringed molecules that contain a double bond.
Which student will most likely overcome their nerves?
A.one who thinks positively and practices the speech in advance
B.one who thinks positively and stays up late to practice the speech
C.one who gets plenty of rest and eats sugary foods for energy
D.one who gets plenty of rest and avoids practicing the speech
Answer:
A.one who thinks positively and practices the speech in advance
Explanation:
It makes more sense
Student will overcome their nerves who thinks positively and practices the speech in advance
Positive behaviourThe person who thinks positively and practices the speech in advance will most likely overcome their nerves because the positive behaviour has good effect on the personality of an individual. Those people who think negative, they will not get success in their life.
Practice's benefitsThere is a saying that practice makes a man perfect. That person who regularly practice a specific topic, they can do the speech very well or other things in their life so we can conclude that student will overcome their nerves who thinks positively and practices the speech in advance.
Learn more about practice here: https://brainly.com/question/15886943
Learn more: https://brainly.com/question/19572792
Graphic organizer: Use the terms in the word bank to complete the graphic organizer below: Word Bank precipitate light substances chemical reactions properties color gas temperature
Hi, you've asked an incomplete question. Attached is the full image of the graphic organizer.
Answer:
chemical reactionssubstancespropertiesprecipitategascolortemperaturelightExplanation:
After merging the missing words together, we can make this likely conclusion:
First, when chemical reactions (1) occur, they often indicate new substances (2), that is formed with new properties (3).
Next, we also note that some evidence of a chemical reaction occurring includes:
↓formation of:
a precipitate (4), or
gas (5)
↓change in:
color (6)
temperature (7).
↓production of:
light (8) A good example of this occurs when one burns wood by applying heat, there's usually a production of light.
What is the relationship between boiling point and pressure?
The boiling point of a liquid is the temperature at which its vapor pressure is equal to the pressure of the gas above it. The normal boiling point of a liquid is the temperature at which its vapor pressure is equal to one atmosphere. Microscopic view inside a bubble in boiling water.
Help please I am begging I am stupid :(
Answer:
Explanation: b
Answer: if you need help get help
Explanation: help is like geting more egication and speed classes
have a nice rest of your day
Which process represents cellular division in body cells?
Explanation:
Cell division occurs during mitosis which means the chromosome pairs are split into two new cells.
The last two pictures show it in a visual way for you!
Hope this helps!!
Alvin is propelled by ____ hydraulic thrusters and features an electrical system powered by lead-acid batteries. *
Answer:
Alvin is propelled by _gas or diesel___ hydraulic thrusters and features an electrical system powered by lead-acid batteries.
Explanation:
Technically, this implies that Alvin is working on motor-assist mode, using a hybrid engine. Alvin is, therefore, propelled by an internal combustion engine (given the presence of hydraulic thrusters) in addition to an electric motor, which uses energy stored in (lead-acid) batteries. Alvin must be a robot.
an anucleated cell located within blood is called
Answer:
Red Blood Cell
Explanation:
Red Blood Cells (RBCs) are round and without a nucleus. It has no nucleus so that it has more space to accommodate oxygen molecules and it helps in diffusion due to the biconcave shape, and that biconcave shape is present because there is no nucleus present in the RBC.
I hope this helps you!!
What is the representative organism of annelids?
Answer:
The annelids (Annelids, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.
Explanation:
Rank: Phylum
Organism classification: Leech
Displayed higher classification: Animal
Answer:
The annelids (Annelids, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.
Explanation:
i did tis assigment.
what's the difference between polysaccharide and monosaccharides
Answer:
monosaccharide means a simple sugar such as glucose that has just one ring, whereas polysaccharide means a polymer made of many saccharides linked by glyosidic bonds
Which of the following is true about cells?
A.
In general, eukaryotic cells do not have a true nucleus or membrane-bound organelles, whereas prokaryotic cells contain both a nucleus and organelles enclosed by membranes.
B.
Neither prokaryotic cells nor eukaryotic cells ever contain both a true nucleus that is well-defined and organelles that are separated from the cytoplasm by membranes.
C.
Both eukaryotic cells and prokaryotic cells always contain both a true nucleus that is well-defined and organelles that are separated from the cytoplasm by membranes.
D.
In general, prokaryotic cells do not have a true nucleus or membrane-bound organelles, whereas eukaryotic cells contain both a nucleus and organelles enclosed by membranes.
Answer:
d
Explanation:
d 100% literally was just learning about this
who is popular know by the name `Kavindra´ in Neali literaturewho is no by the
Answer:
i dont think the question is finished.
Explanation:
Prokaryotic cells are surrounded by a cell membrane.
True
False
Answer:
True
Explanation:
They are surrounded by a plasma membrane.
What are the ways oxygen is transported in the blood, ranked according to the way that is responsible for the majority of transport of oxygen?
a. 1-dissolved in plasma, 2- Hb
b. 1-Hb, 2-HCO3, 3-dissolved in plasma
c. 1- dissolved in plasma, 2-Hb, 3-HCO3
d. 1-dissolved in plasma, 2-HCO3, 3-Hb
e. 1-HCO3, 2-Hb, 3-dissovled in plasma
f. 1- Hb, 2-dissolved in plasma
Answer:
f. 1- Hb; 2- dissolved in plasma
Explanation:
Transport of oxygen in the body occurs in two way; oxygen bound to hemoglobin and oxygen dissolved in plasma.
1. Bound to hemoglobin :
Hemoglobin, or Hb, is a protein molecule found in red blood cells and is responsible for the colour of red blood cells. It is composed of four subunits of two types of the protein globin: two alpha subunits and two beta subunits. Each subunit surrounds a central heme group (red in color) that can bind one oxygen molecule.Therefore, each hemoglobin molecule can bind and transport four oxygen molecules. About 98.5% of oxygen is transported in the body bound to hemoglobin.
2. Oxygen is only fairly soluble in blood plasma. As a result, only 1.5 percent of oxygen in the blood is dissolved and transported in blood plasma.
are unsaturated fats less healthy than saturated fats
How was the earths biosphere affected during the Precambrian era
Answer:
Some three billion years ago, the Earth's atmosphere was virtually devoid of oxygen. At about 2.4 billion years ago, oxygen was released from the seas as a byproduct of photosynthesis by cyanobacteria. Levels of the gas gradually climbed, reaching about one percent around two billion years ago.
Explanation:
Hope this helped!
2 of 8
Which of the following processes adds nutrients to the ocean?
12
A
Gases dissolving from the atmosphere intot he ocean
B
Surface runoff
С
Upwelling from nutrient-rich deeper waters
D
All of the above
Answer:
C
Explanation:
I had this question for a test and I got it right
What is the resulting amino sequence if the following mRNA molecule undergoes translation 5’ AUG AGU CCU CUU UGA 3’ ?
Answer:
From the translation of the mRNA molecule 5’ AUG AGU CCU CUU UGA 3’ results the amino acid sequence Met-Ser-Pro-Stop, that is, Methionine-Serine-Proline and the last triplet being a stop codon.
Explanation:
Messenger RNA (mRNA) molecule is in charge of conducting the encoded genetic information to produce the protein synthesis, organized in a sequence of nucleotides called the genetic code. The arrangement of the nucleotides is in triplets of bases or codons, which encode the synthesis of an amino acid (translation), determine the beginning of the synthesis and also establish the stop.
In the given sequence, 5’-AUG-AGU-CCU-CUU-UGA-3’ results the amino acid sequence Met-Ser-Pro-Stop:
5'-AUG Methionine (Met), being at the same time an initiating codon.AGU Serine (Ser).CCU Proline (Pro).UGA-3' is a stop codon.Stop codons do not code for amino acids, but their presence in a codon sequence marks the completion of peptide or protein synthesis.
what are the two classes of cells found in the human body
a) muscular and nervous
b) bone cells and endocrine cells
c) sex cells and somatic cells
d) permanent and temporary
Answer: the answer is c
Explanation:
Different types of cells occurs in organisms. These cells differentiate right from the zygote stage to become more specialized as the individual grow.
The two classes of cells found in the human body include the sex cells and somatic cells (option C).
These two main classes encompasses all the various types of specialized cells. The somatic cells are also called the body cells. These cells are diploid in nature. While the sex cells are also known as the gametes. The sex cells include the sperm cell from the male and the egg cell from the female. In humans there are 22 pairs of body cells (autosomes) and a pair of sex chromosomes (XX for females and XY for males).Learn more about the sex and body cells: https://brainly.com/question/927903
Select three types of land associated with the largest pore size of soil.
peat
swamp
beach
plains
clay
desert
Answer:
I believe the answers are beach, desert, and clay.
Explanation:
Sand is the largest mineral particle and it has more pore space between its particles.
its beach desert and clay i got it right
A smoke detector in a home uses what form of energy?
-solar
-chemical
-thermal
Answer: smoke alarm is a smoke detector that can detect small particles of smoke common in home fires. This detector is activated by monitoring the electronic energy between two battery-powered metal
Explanation: so chemical