mention two srraigies That favour self pollination​

Answers

Answer 1
There are two types of self-pollination: in autogamy, pollen is transferred to the stigma of the same flower; in geitonogamy, pollen is transferred from the anther of one flower to the stigma of another flower on the same flowering plant, or from microsporangium to ovule within a single (monoecious) gymnosperm

Related Questions

Temperature regulatory apparatus of the mammal include the following pairs
a. epidermis and dermis
b. hair follicles and nerve ends
c. sweat glands and sebaceous glands
d. sweat glands and hair follicles​

Answers

the correct answer is D
It’s D hope this helps

Information that controls a cells function is stored in a molecule known as ______

Answers

Answer:

The nucleus controls most cell processes and contains the hereditary information of DNA. The nucleus is surrounded by a nuclear envelope that is composed of two membranes. – Proteins, RNA, and other molecules can move to and from the rest of the cell through nuclear pores.

what can happen during the cycle of photosynthesis with increasing concentrations of Atrazine?

Answers

Answer:

By inhibiting photosynthesis, Atrazine kills plants. Photosynthesis, which is unique to living green plants, occurs when light energy becomes the chemical energy required for food production.

Simply stated, plants eventually die of hunger when food production stops. Atrazine selectively kills unwanted plants (weeds) competing with suitable plants for water and nutrients (crops, turfgrass). It is thus a beneficial tool for both farming and urban plants.

Explanation:

In Texas maize and grain sorghum production, Atrazine is the most often used herbicide. In several "weed and feed" preparations for domestic plowing and commercial turf-grass weed control, it is also often found as an active ingredient.

With its broad use, atrazine has been identified in minute concentrations in Texas ground and surface waterways. Because of this, it is crucial to understand atrazine behavior in the environment and the potential for harmful impacts on human and animal health and on other non-target organisms.

Please help!! Answers!!! I Need The Right Answer!! A group of scientists studied the environmental impact of internal combustion engines burning hydrocarbon fuels. The scientists equipped four vehicles with devices to capture and measure particulate emissions. One vehicle burned diesel fuel, one burned ordinary gasoline, one burned a gasoline/ethanol mixture, and one burned natural gas. The four vehicles had equal masses and carried identical cargo. The scientists drove each vehicle 400 kilometers, recording the volume of fuel burned and the quantity of particulate emissions generated.
What is the independent variable in this experiment?

A.
type of fuel

B.
distance traveled

C.
mass of vehicle and cargo

D.
quantity of particulate emissions

Answers

Answer:

A. type of fuel

Explanation:

The scientists combusted different types of hydrocarbons (different type of fuel)

What cause disease blood cancer

Answers

Answer:

-Advanced age

-Certain types of infections

-Compromised immune system due to such conditions as HIV/AIDS, taking corticosteroids, or organ transplant

-Exposure to certain chemicals

-Exposure to radiation or certain types of chemotherapy

-Family history of blood cancer

-HIV/AIDS

-Solid organ transplant recipient

-Personal history of certain blood disorders

-Personal history of certain genetic disorders (Down syndrome)

-Smoking

Explanation:

Leukemia

A type of cancer which affects the production and function of blood cells. This causes swollen lymph nodes, recurrent nosebleeds, tiredness, frequent infections, weight loss, bleeding, and bone pain. Leukemia symptoms vary, depending on the type of leukemia. Common signs and symptoms of leukemia include:

Swollen lymph nodes especially in the neck and armpits

Experience pain in bones

Night sweats - excessive sweating, especially at Night

Weakness and fatigue

Rapid weight loss

Red spots on the skin

Bleeding and bruising easily

Fever or chills

Frequent infections

Causes

The exact cause is not known. Hereditary and environmental factors may play a role in developing the disease.

The risk factors include:

Mutations in the DNA are frequently a major cause.

Sometimes chromosome translocation can also promote activation of oncogenes (the cancer inducing genes) and this can lead to disease progression.

Exposure to certain chemicals and radiation can also induce cancer.

For each function listed below, name the associated structure: Function Structure Rigid cellular support __________________ Flexible cellular boundary __________________ Site of cellular respiration* __________________ Site of photosynthesis

Answers

Answer:

cell wall

mitochondria

chloroplast

The cell membrane is a flexible cellular boundary, respiration takes place in mitochondria, and photosynthesis in the chloroplast.

What are cellular organelles?

An organelle is a subcellular structure that, like an organ in the body, has one or more specific tasks to carry out within the cell. The nucleus, which houses genetic material, the mitochondria, which generate chemical energy, and the ribosomes, which put together proteins, are some of the more significant cell organelles.

The nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles are among the organelles found in animal cells. Despite not being protected by a membrane, ribosomes are frequently referred to as organelles in eukaryotic cells.

Thus, the cell is covered by a flexible cell membrane. Mitochondria is a site of cellular respiration, while chloroplast is a site of photosynthesis.

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Recent discoveries in a cave at Pinnacle Point, South Africa, suggest that humans had achieved behavioral modernity as early as 164,000 B.P. All of the following were found at this site EXCEPT evidence of:_______
a. a diet that included shellfish and other marine resources.
b. the very early use of pigment, likely for symbolic behavior.
c. animal butchery for the first time.
d. bladelet stone-tool technology, previously dating to 70,000 years ago.
e. the human capacity to exploit coastal environments.

Answers

Answer: C. Animal butchery for the first time

Explanation: The discoveries in the cave suggest that humans were harvesting food from the sea (including shellfish and other marine resourses), the use of complex small stone tools and using red pigments in symbolic behavior 164,000 years ago.

A paleoanthropologist (with the Institute of Human Origins at Arizona State University); Curtis Marean, who was the Lead of the research team expressed the aforementioned discoveries while presenting their reports on the research.

He further indicate that these discoveries translates that humans must have been living along this coastal environment at that early time while exploiting it resourses.

Consider the following statements:
1. RNA is ribonucleic acid.
2. RNA is used for information transport (known as mRNA). Choose the correct answer from the given codes:
A Only 1
B Only 2
C Both
D Neither 1 nor 2
E None of the above

Answers

Answer:

Only A

Explanation:

RNA is used for storing and transporting information through mostly virus only..

¿Qué nombres reciben los tejidos que dan
origen a los tejidos adultos de las plantas?
a. Tejidos diferenciados
b. Tejidos indiferenciados (meristemos)
c. Tejidos vegetales

Answers

Answer:

D

Explanation:

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Identify the number of electrons each of the following atoms needs to gain or lose to have a stable outer electron configuration: Sodium(Na), Sulfur(S), Strontium(Sr)

Answers

Answer:

Sodium: +8

Sulfur: +2

Strontium: -2



1. Explain the relationship between the terms species and organism.

Answers

Answer:

Organism: An individual living thing

Species: A group of any given organism; a group of many individual living things

A species is defined as the group of organisms in which individuals can reproduce their progeny.

What is Species?

A species is defined as the basic unit of classification. This is also taxonomic rank of an organism, as well as a unit of biodiversity.  These are the group of organisms which can reproduce with one another in nature and produce fertile offspring.

Species can be divided further on the basis of concept like

1. Typological or Essentialist Species Concept

2. Nominalistic Species Concept

3. Biological Species Concept

4. Evolutionary Species Concept

The species designation which originated in taxonomy, where the species is the basic unit of taxonomy is recognized by the International Commission on Zoological Nomenclature. Every species is have a standard two-part name of genus and species.

Thus, a species is defined as the group of organisms in which individuals can reproduce their progeny.

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Which experiment would most likely contain experimental bias?

Choices see photo…

Answers

Answer:

A. A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands.

3. Explain the main difference between organisms of the
domains Bacteria and Archaea and organisms of the domain
Eukarya.

Answers

Answer:

Both Bacteria and Archaea are prokaryotes, single-celled microorganisms with no nuclei, and Eukarya includes us and all other animals, plants, fungi, and single-celled protists – all organisms whose cells have nuclei to enclose their DNA apart from the rest of the cell.

Explanation:

Both Bacteria and Archaea are prokaryotes, single-celled microorganisms with no nuclei, and Eukarya includes us and all other animals, plants, fungi, and single-celled protists – all organisms whose cells have nuclei to enclose their DNA apart from the rest of the cell.

In the aerobic metabolism of proteins by chemoheterotrophs (e.g., E. coli and you):____.
A. Proteins are broken down into smaller peptides and eventually into amino acids by proteases (peptidases).
B. Certain amino acids may be converted to pyruvate.
C. Certain amino acids may be converted to intermediates (e.g. oxaloacetate) of the Krebs cycle.
D. Certain amino acids may be converted to acetyl-CoA.
E. All of the above are true.

Answers

The answer is A because
A) proteins are broken down into smaller peptides and eventually into amino acids by proteases

Which of the following would NOT be a reliable source of information?

Answers

Eyewitness.... because it can't actually sometimes determine what really happened on the site so it can't give a reliable sitrep

Which quantity does a light year measure

Answers

Answer:

distance = 9.46 trillion kilometers

Explanation:

Light years measure distance and is a unit that equals the distance light travels through space in one year on Earth (365 days) and is used as way to measure extremely vast distances in outer space. It equals 9.46 trillion kilometers.

Which organisms always have groups of cells organized into tissues?

Answers

Answer:

All living things

Explanation:

Answer

Overview of body organizations

Multicellular organisms, like people, are made up of many cells. Cells are considered the fundamental units of life. The cells in complex multicellular organisms like people are organized into tissues, groups of similar cells that work together on a specific task.

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Should we clone animals that are going or have gone extinct (in other words bring them back
either from the brink of extinction or from extinction)? Explain your answer.

Answers

No, God gives and takes away, the world is heartless and kills entire species to extinction but it’s nothing that God didn’t already know would happen. Dinosaurs are no longer here there extinct for a reason, nowadays extinction comes from man but everything that happens in this world is Already written out in Gods book

Answer:

I think we should but people are preventing this though

Explanation:

I think we should because it might benefit the world and let scientists to discover this animal. But then I don't think so because animals that are/were extinct could perhaps be from climate change. Nowadays, people don't take this matter seriously causing habitats to be destroyed and animals to be extinct :) Like icebergs are melting that mean penguins are at risk of being extinct,if we did something then this situation will be prevented. However dinosaurs did become extinct and they did not come back so its probably just life and this is how god planned it:)

PLEASE BE QUICK! Question 7 of 35
Why do scientists use microscopes to study cells?
A. Because most cells are too dangerous to view without protection
B. Because it is quite rare to find living things that are made of cells
C. Because most cells cannot be seen without magnification
D. Because cells can be studied only after they have died
SUBMIT

Answers

Answer:

C

Explanation:

Most are too small to be seen with the naked eye. so they must be looked at with a microscope

The answer is C) Because most cells cannot be seen without magnification

Without the proper tools, the naked eye will never be able to see a cell. But when you have the correct tools, you will be able to spot them, as long if you know what you are doing. Cells are too small for the naked eye to see, just like trying to find the needle in the haystack without touching it.

In most unsaturated fatty acids found in animal fats, vegetable oils, and biological membranes, the cis isomer predominates. true false

Answers

Answer:

The correct answer is - true.

Explanation:

Most unsaturated fats are oils and normally are biological membranes or plant-based such as vegetables. These fats mostly have cis isomer in them. Unsaturated fats help to lower blood cholesterol levels.

However, few oils show saturated fats but these are few in number, the majority are made up of unsaturated fats that have double bonds.

Toluene crosses pure lipid bilayers many hundreds of times faster than a related compound, phenylalanine. Suggest two different properties of these molecules that would account for this difference.

Answers

Answer:

The lipid bilayer is hydrophobic that is hydrophobic and it can easily cross the lipid bilayer.

Toulene is a hydrophobic and neutral molecule compound so it can easily pass through the bilayer. It is an aromatic compound with a methane group attached to the benzene ring. It is smaller in comparison to Phenylalanine.

Phenylalanine-- It is an amino acid with a benzene ring attached to it. This amino acid is less hydrophobic than the aliphatic amino acids. Because of its less hydrophobic nature, it travels slowly compared to Toluene. It is also larger and has amino and carboxyl groups attached to it. On the other hand, Phenylalanine is a polar compound which has -COOH and -NH2 group. which prevents its delay in its transport across the lipid bilayer.

What the Difference in guard cell during day and night

Answers

Answer:

the differences in guard cell during day and night is;

1 guard cell during day it always stays with us or follow us

2 guard cell during night have to look after us like we are their children..

Vasopressin works on

Answers

Answer:

To treat diabetes insipidus, which is caused by a lack of this naturally occurring pituitary hormone in the body. And used to treat or prevent certain conditions of the stomach after surgery or during abdominal x-rays.

During the process of DNA replication, the whole molecule gets copied in the [A] phase of the cell cycle. The DNA strands are separated by the enzyme [B] while [C] keeps it from overwinding. The 2 strands are copied differently. The [D] strand is made continuously, while the [E] strand is synthesized in small sequences called Okazaki fragments. The main enzyme involved in DNA replication is [F]. This enzyme can only add nucleotides to an existing strand, so short sequences of [G] made by the enzyme [H] are needed for the process of elongation. In the [U] strand, the enzyme DNA polymerase one removes the short tj sequences and fills the gaps, while [K] joins the fragments.

Answers

Answer:

Synthesis, DNA helicase, topoisomerase, leading strand, lagging strand, DNA polymerase, nucleotides, primase, lagging strand, nucleotide, DNA ligase

Explanation:

During the process of DNA replication, the whole molecule gets copied in the synthesis or S phase of the cell cycle. The DNA strands are separated by the enzyme helicase while topoisomerase keeps it from overwinding. The 2 strands are copied differently. The leading strand is made continuously, while the lagging strand is synthesized in small sequences called Okazaki fragments. The main enzyme involved in DNA replication is DNA polymerase. This enzyme can only add nucleotides to an existing strand, so short sequences of nucleotides (primer) made by the enzyme primase are needed for the process of elongation. In the lagging strand, the enzyme DNA polymerase one removes the short tj sequences and fills the gaps, while DNA ligase joins the fragments.

A Synthesis,

B DNA helicase,

C topoisomerase,

D leading  

E lagging strand

F DNA polymerase

G nucleotides

H primase

I lagging strand

J nucleotide

K DNA ligase

The ABO locus for blood typing consists of three alleles, A, B and i. An analysis the ABO blood types in the population of the Pingelap atoll of Micronesia is being planned. A Chi-Square analysis is being planned as part of the data analysis. How many degrees of freedom are there in the experiment

Answers

Answer:

1/8(12.5) if the answer is correct plz mark me as brainliest.

What is added to tacos, burritos, and soups that is
high in fiber?

Answers

Answer: flax seed whole wheat tortillas.

1⁄2 cup low-fat refried beans.

1⁄4 cup low-fat cheddar cheese.

leaves lettuce.

1⁄ cup salsa.

1⁄4 cup fat free sour cream.

Pinto beans are added to tacos, burritos, and soups that are high in fiber.

What are fibers and their types?

The body is unable to digest fiber, which is a form of carbohydrate. While fiber cannot be converted into glucose, the sugar that results from the breakdown of most carbs, fiber travels through the body undigested.

The solubility, viscosity, and fermentability of dietary fibers, which have an impact on how they are metabolized by the body, can be used to classify them in general. Dietary fibers have a wide range of chemical compositions.

Fibre comes in two varieties: soluble and insoluble. Both are crucial for good health, digestion, and illness prevention. Thus, Pinto beans are added to tacos, burritos, and soups that are high in fiber.

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In one study, 108 regions of the genome were identified to be significantly associated with schizophrenia. Below is a Manhattan plot showing the results from this study. Assuming that none of the causative variants are linked and there is a single causative variant per peak region, how many regions of chromosome 6 with causative variants were identified in this study

Answers

Answer: hello your question is incomplete attached below is the missing part of the complete question

The top of the highest peak corresponds to a region of the genome called the MHC locus. This means that of all the variants identified by this study, ____________.

the variant in MHC is observed the most frequently in the affected cohort.  

the variant in MHC can cause schizophrenia in a Mendelian fashion.

the variant in MHC is the least likely to be a false positive result.

the variant in MHC has the largest odds ratio.

answer:

i) 4

ii) the variant in MHC is the least likely to be a false positive result. ( C )

Explanation:

The number of regions of chromosome 6 with causative variants identified is 4

While the variant in MHC is the least likely to be a false positive result. this is because, it is the highest peak in of all the causative variants identified in this study (i.e. closely related to the disease)  and been the highest peak will make it least likely to return a false positive result.

Why do you think so many people seem to not care about the environmental issues we are facing?

Answers

Answer:

People are not aware of their causes and impacts.

Explanation:

First, people just seem to think that a little bit of harm won't impact the world at all, but that little bit for everyone adds up and the magnitude is a lot worse than people would imagine. Next, even if they/we do know the scale, they don't know how to help or are not interested enough to try and fix the problem. We all think that we won't be able to help enough to fix the issue.

what must be true about two objects if heat is flowing between them​

Answers

Answer:

The objects must be the same temperature.

Explanation:

if heat is flowing between two objects, so both ​the objects must have the same temperature because the heat in object 1 passes to the object 2 due to the conduction property present in these objects. The heat flows from one body to another body until both have the same amount of heat energy as well as temperature so that's why we can say that both objects must be the same temperature.

I never thought of that these statements alone are not
sidered for a grade
Answer the questions) below
A former patient comes into the dental office and states that she has recently been diagnosed with skin cancer. She demands her xrays and treatment record and claims that she was exposed to unnecessary radiat
during her visits How should the dental assistant respond? Can the dental assistant be held responsible?

Answers

Answer:

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Using RACE back up your answers and with evidence what is the mood of the movie frozen is it sad,scary? A new element R shows chemical properties similar to the element sodium. What is the correct formula of a compound formed with R and sulfur? RS RS RS RS The average defect rate on a 2010 Volkswagen vehicle was reported to be 1.33 defects per vehicle. Suppose that we inspect 100 Volkswagen vehicles at random. (a) What is the approximate probability of finding at least 157 defects SOMEBODY PLEASE ILL GIVE BRAINLIEST AND FREE ROUBUX An electrostatic paint sprayer has a 0.100 m diameter metal sphere at a potential of 30.0 kV that repels paint droplets onto a grounded object. (a) What charge (in C) is on the sphere?(b) What charge must a 0.100-mg drop of paint have to arrive at the object with a speed of 10.0 m/s? An electron-dot structure is a convenient method of representingA. The complete electron configuration of the atom.B. all electrons of the atom.C. valence electrons of an atom.D. core electrons of an atom. what were some unique characteristics of the myan civilization compared to other native american civilization hey everyone hw y'all doin can u pls answer me Written statements made after officially promising to tell the truth are called ? Analyzing Speed Yohan Blake ran the 100-meter race in the 2012 Olympics in 9.75 seconds. Compare the speeds if he ran the 200-meter race in 19.5 seconds. round to the nearest hundredth. As an estimation we are told 5 miles is 8 km. Convert 17.8 km to miles. three dimensions of human development In a triangle ABC, a=4 cm, b=3 cm and angleC=30, find the area of triangle ABC.a. 6b. 1.5 c. 3d. 3 root 3 According to Freud, defense mechanisms are used by the Group of answer choices id to defend against the accusations and guilt feelings produced by the superego. superego to prevent expression of sexual and aggressive drives. ego to prevent threatening impulses from being consciously recognized. id, ego, and superego in a repetitive sequence of internal conflicts. Enter a balanced equation for the reaction between solid nickel(II)(II) oxide and carbon monoxide gas that produces solid nickel and carbon dioxide gas. Express your answer as a chemical equation. Identify all of the phases in your answer. The running trail in the local park is 2.826 miles long. If the park board were planning to extend the trail by 1.46 miles, what would the new length of the running trail be? Any effort by the Federal Trade Commission (FTC) to evaluate expected deceptive marketing practices would be seriously flawed because it would mean punishing business on the basis of what the FTC thinks might happen rather than on what actually does happen.a. Trueb. False Part BWrite a short paragraph analyzing Cassius and Brutus in the excerpt from Julius Caesar. Answer these questions in your analysis:What do we learn about the characters as theyre developed in the scene?How do the characters interact?How do the characters develop the theme or advance the plot?TIP: Be sure to include evidence from the text and commentary in your response. Can sb help me its due soon In order to stop a war between Spain and Portugal, the Pope created this imaginary boundary to split the world between the two countries. A. Northwest Passage B. Columbian Exchange C. Line of Demarcation D. Circumnavigate If f(x)=3x^(2)+1 and G(x)=2x-3 what would f(f(x))