Answer: The correct statements are 1 and 2:
1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant.
2.Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.
Explanation:
Pollination is the transfer of pollen grains from an anthers to a receptive stigma. In most species of flowering plants, external agents bring about pollination. Also, flowers have evolved special structures and mechanisms to ensure successful pollination.
There are two types of pollination
--> Self pollination: This takes place when mature pollen grains from the anther of a flower fall on the stigma of the same flower or that of another flower on the same plant. This type of pollination brings the male gametes and egg cells of the same plant together. The resultant offspring show very little genetic variation.
--> Cross pollination: This occurs when mature pollen grains of a flower are transferred to the stigma of a flower of another plant of the same or closely related species. This brings the male gametes and egg cells of two different parent plants together. Therefore, there is greater genetic variation among the offspring.
Recovery Where are the majority of chloroplasts found? A. in animal cells B. in prokaryotes C. in rose petals D. in the leaves of plants
Answer:
D
Explanation:
In plants, chloroplasts occur in all green tissues, though they are concentrated particularly in the parenchyma cells of the leaf mesophyll.
why does water take up more space than cold water? Your explanation should include the behavior of molecules in the water. 
HELP ASAP!!!!!!
Explanation:
the molecules in water is more tightly packed than ice, so water has greater density than ice as water freezes it expands. so ice has more volume ( it takes up more space, but has less density) than water.
Identify the levels of biological classification and what is different about each.
what is the biological role of hemoglobin? (giving brainly for a well structured explanation)
Answer:
Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues. Myoglobin, in muscle cells, accepts, stores, transports and releases oxygen.
Explanation:
hope this help:)
Answer:
the answer is b I got a 100
3. The right sided of the heart is completely separated from the left side by a wall of tissue called the _______________.
Answer: Septum
Explanation:
In the normal heart, the right and left chambers are completely separated from each other by a wall of muscle called a septum. The right atrium is separated from the left atrium by the atrial septum and the right ventricle is separated from the left ventricle by the ventricular septum.
:)
An investment in labor helps a business increases productivity by
Answer: Providing more tools to make goods more quickly, thereby increasing the output.
What is an invasive species and how can it affect an ecosystem?
An invasive species is an organism that causes ecological or economic harm in a new environment where it is not native. Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats.
Sodium has one electron in its outer energy level. According to the octet rule, _____.
Answer:
Referring to the octet rule, atoms attempt to get a noble gas electron configuration, which is eight valence electrons. Sodium has one valence electron, so giving it up would result in the same electron configuration as neon. Chlorine has seven valence electrons, so if it takes one it will have eight (an octet).
it wants to give up an electron?
Explanation:
if this helped could i have a brainlist
What is the approximate temperature of the troposphere, mesosphere, and stratosphere.
Answer:
Heat is produced in the process of the formation of Ozone and this heat is responsible for temperature increases from an average -60°F (-51°C) at tropopause to a maximum of about 5°F (-15°C) at the top of the stratosphere. This increase in temperature with height means warmer air is located above cooler air.
Explanation:
In addition to how much force Earth exerts on the object, which features of an object affect its weight?
mass and location of the object
shape and location of the object
location of the object and how much energy the object has
mass of the object and how much energy the object has
Answer: A (I got it right)
In addition to how much force Earth exerts on the object, which features of an object affect its weight?
mass and location of the object
shape and location of the object
location of the object and how much energy the object has
mass of the object and how much energy the object has
Explanation:
Answer: A
Explanation:
hope this helps!
If 34 percent of the bases in a DNA molecule are adenines, then which of the
following is true?
O Thirty-four percent of the bases in the molecule will be thymines
Thirty-four percent of the bases n the molecule will be cytosines
Sixty-six percent of the molecule will be deoxyribose sugars.
Sixty-six percent of the molecule will be phosphate.
Answer:
34 percent will be thymine since the amount of thymine corresponds with the amount of adenine.
What is the difference between a normal gene sequence and a mutated gene sequence?
Answer:
Is that original sequences do not have any mutated nucleotides or damages in DNA whereas mutated sequences may either contain nucleotide alterations or DNA damages
Explanation:
Which of the following is a possible base pair?
АТ
GA
ст
АВ
WILL MARK BRAINLIEST
what is the definition of stimulus and response
Explanation:
The stimulus–response model is a characterization of a statistical unit. The model allows the prediction of a quantitative response to a quantitative stimulus, for example one administered by a researcher.☺️☺️☺️
an act of responding. 2 : something constituting a reply or a reaction: such as. a : a verse, phrase, or word sung or said by the people or choir after or in reply to the officiant in a liturgical service.☺️☺️☺️follow me
Example #2: Oil is poured into a glass water. The oil and water are mixed.
What happens over time?
A) The oil becomes evenly distributed in the water.
B) The oil separates out.
C) The oil chemically combines with the water.
Answer:
C
Explanation:
im a mechanic i know this stuff
The area of the picture highlighted by the green square is a monomer of nucleic acids(DNA/RNA). Which of the following is the name for that monomer?
nucleotide
phosphate backbone
thymine
Answer:
Examples of the monomers are glucose, vinyl chloride, amino acids, and ethylene. Every monomer can link up to form a variety of polymers in different ways. For example, in glucose, glycosidic bonds that bind sugar monomers to form polymers such as glycogen, starch, and cellulose
Explanation:
Answer:
Nucleotide
Explanation:
In human beings, the cell that results from the fusion of an egg cell and sperm cell is considered to be
Answer:
birth
explanation:
when the sperm comes into contact with the egg the sperm penetrates resulting in a baby
HELP I ONLY HAVE 3 MINUTES If a species of animal was exposed to a deadly virus, which reproductive strategy would give the species a higher chance to survive?
a.neither
b.both are the same
c.sexual reproduction
d.asexual reproduction
Where are the plates in the convection currents
Answer:
Convection currents drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle. In places where convection currents rise up towards the crust's surface, tectonic plates move away from each other in a process known as seafloor spreading (Fig. 7.21).
Explanation:
Give the word equation for photosynthesis.
[2 marks]
Answer:
Carbon dioxide + Water → Glucose + oxygen
A couple has six children, all with blood type A. The mother’s blood type is O, and the father blood type is A. Based on this information, which describes the most probable genotype of the father?
Answer:
most probable bg of father is IAIA
One of the greenhouse gases, methane has a particular molecular structure that enables it to trap more heat than carbon dioxide However, methane does not exist as long as carbon dioxide in the atmosphere: both naturally and as a result of man's activities on earth . Identify all the sources of naturally occurring methane
Answer: Wetlands, animal digestion, along with thermogenic sources such as oil and gas production.
Explanation:
Methane (CH4)
Methane comes from natural sources, such as wetlands and animal digestion, along with thermogenic sources, including oil and gas production. Natural gas is approximately 90% methane. Hope this helped!
Answer: A) V and VI
Explanation: got it right on USATP
Label each organism with its symmetry. Fill in asymmetry, radial, or bilateral.
1.) humans __________
2.) sponges ________
3.) starfish _______
4.) monkey ________
5.) baboons _______
6.) flatworms _______
7.) birds _______
8.) fishes ______
Answer:
1.) Humans: Bilateral symmetry
2.)sponges: asymmetry
3.) starfish: radial symmetry
4.) monkey: Bilateral symmetry
5.) baboons: Bilateral symmetry
6.) flatworms: Bilateral symmetry
7.) Birds: Bilateral symmetry
8.)fishes: Bilateral symmetry
Explanation:
The divisions and subdivisions of the kingdom Animalia is based on several important features which includes the body symmetry.
Body symmetry is defined as balanced division of body parts in an orderly manner. There are three main types of body symmetry these includes:
--> Asymmetry
--> Bilateral and
--> Radial symmetry
Asymmetrical body division involves animals that when divided, doesn't show any identical features. That is one side doesn't match the other side.. Atypical example is seen in phylum porifera, the sponges. They are simple aquatic invertebrates that lack specialised tissues.
BILATERAL SYMMETRY: This is where the body of animals can be cut along its axis in only one plane to give two identical halves, the right and the left side. The terms anterior, posterior, ventral, and dorsal are used to describe a bilateral symmetrical animal. The evolution of bilateral symmetry allow body parts to become specialised seen in most advanced animals.
RADIAL SYMMETRY: this involves animals where the body can be cut along its axis in any plane to give two identical halves. This is an ideal body symmetry for immobile organisms such as starfish and hydra.
Label each organism with its symmetry:
humans - bilateral symmetrysponges - asymmetrystarfish - radial symmetrymonkey - bilateral symmetrybaboons - bilateral symmetryflatworms - bilateral symmetrybirds - bilateral symmetryfishes - bilateral symmetrySymmetryIt represents Regularity or a pattern in the arrangements of body parts of an organism. Each organism can be classified by three types of body plan symmetry:
radial symmetry - regularity of parts around a central axisbilateral symmetry - there is a left and a right side along the midlineasymmetry - having a disproportionate arrangement of partsLearn more about the classification of symmetry:
https://brainly.com/question/238772
3.
We prefer a wire of
energy
for making the 'heating element in
4.
5.
Electromagnet should show rapid
when the current is switched
domestic appliances like the electric iron, electric heater and the electric toaster.
A safety device, based on the heating effect of current is the
Answer:
what's your question I am not understanding state the correct question
A forest is cut down to plant a field of corn.How will this affect the bioversity of the area?
Answer:
Since the egg membrane is semi-permeable, water can move in but proteins cannot move out. If a naked egg is placed in the corn syrup the egg will shrink. This is also due to osmosis, but in the opposite direction.
Explanation:
Explain why the earth is flat. Use two reasons in your answer [2 marks]
1.
2.
Answer:
Reasons why the earth is flat:
1. The earth is not flat
2. The earth is round
You need to change schools <3
What is an example of a physical weathering?
A: a metal tool left outside beginning to rust
B: microscopic organisms producing compounds that break down rock
C: a rock wearing down due to acid rain
D: bits being blown off a rock by heavy winds
Answer:
D) Bits being blown off a rock by heavy winds
Explanation:
All the other answer choices are examples of chemical weathering.
Rusting is chemical weathering.
Compounds that break down rocks is chemical weathering.
Acid rain is chemical weathering.
Wind breaking rocks, however, is physical weathering.
What is the number of chromosomes in a haploid cell?
Answer:
23 chromosomes
Explanation:
In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells. The number of chromosomes in a single set is represented as n, which is also called the haploid number. In humans, n = 23.
Answer:
23 chromosomes
Explanation:
In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells. The number of chromosomes in a single set is represented as n, which is also called the haploid number. In humans, n = 23.
Where is the intertidal zone located?
A. where the ocean meets the shore
B. where the ocean floor starts to slope downward
C. the ocean floor
D. where the ocean floor drops sharply
Answer:
its where the ocean meets high and low tide sooooo I'd say A? sorry if I'm wrong
Which of the following statements best describes Community Supported Agriculture (CSA)?
A. a service club that provides volunteer labor to local farmers
B. special zoning laws permitting agriculture within residential neighborhoods
C. a local tax on the town or county scale that is contributed to local farmers
D. local farms that sell produce directly to subscribed consumers
Answer:
D
Explanation:
D. local farms that sell produce directly to subscribed consumers
/Community-supported agriculture (CSA) is a food production and distribution system that directly connects farmers and consumers. In short: people buy "shares" of a farm's harvest in advance and then receive a portion of the crops as they're harvested.