Answer:
Double fertilization involves two sperm cells; one fertilizes the egg cell to form the zygote, while the other fuses with the two polar nuclei that form the endosperm. After fertilization, the fertilized ovule forms the seed while the tissues of the ovary become the fruit.
identify the climate that has the most human settlements.
A. cold and dry
B. hot and dry
C. mild and wet
D. hot and wet
Answer:
C
Explanation:
it is the most habitable
Help please :) brainliest involved
Answer:
First Option
Explanation:
The other three options basically are the cell theory!
The cell theory states that:
The basic units of life are cells.All cells arise from other pre-existing cells.All living things are made of cells.Since the 3 options state this, the first option (that all of them are part of the theory) should be correct.
Hope this helps.
What is the relationship among species interaction and biodiversity?
Answer:
Species interactions within ecological webs include four main types of two-way interactions: mutualism, commensalism, competition, and predation (which includes herbivory and parasitism).
Explanation:
please help please i really need it
Answer:
The answer is C
If a person wanted to learn more about the genetic material of plant and animal cells, where would they look? A) on the cell wall / B)inside the chloroplasts / C) in the nucleus / D) in the lysosomes
Answer:
c
Explanation:
for the genetic code is contained in the nucleus.
but this dose not apply to cells without a nucleus e.g. red blood cells...
If a person wanted to learn more about the genetic material of plant and animal cells, where would they look? A) on the cell wall / B)inside the chloroplasts / C) in the nucleus / D) in the lysosomes
Answer: (C in the nucleus)
btw K12 answer i got it right
Which statement is not true?
A. A virus cannot read its own genes.
B. Bacteria can make proteins identical to those found naturally in humans.
C. The DNA of a bacterium is loos in the cytoplasm.
D. Bacteria grow and replicate quickly.
Answer: i would say C
Explanation:
PLS HELP ASAP Select the word that means how easily water can move through a substance. Lesson 2.03 o particles permeability porosity
Answer:
permeability
Explanation:
dictionary definition: the state/quality of a material or membrane that causes it to allow liquids or gases to pass through it
in biology we use this term to describe the cell membrane, it is "semi-permeable" because it allows certain gasses and molecules to pass through
The water can easily move through a substance and it is called permeability. Hence, option B is correct.
What is permeability?The ability of molecules to pass through a biological membrane or barrier is known as biological permeability. Because cell membranes are selectively impermeable, substances cannot pass through the barrier without consideration. Some of the characteristics that affect permeability include polarity, hydrophobicity, charge, size, and shape.
The metabolic activities, survival, and potential use of the cell in both biotechnological applications and physiological systems are all greatly impacted by the cell membrane permeability, which controls the rate of solute transport into and out of the cell.
The water can easily move through a substance when the substance is permeable. Hence, option B is correct.
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Some flowers can only be pollinated by specific insect species.
What will happen if none of these insects are present?
A genetically different seed produced
B genetically identical seed produced
С no seed produced
D only small amounts of seed produced
Answer:
C no seed produced
Explanation:
Some flowers can only be pollinated by insects. If insects were not present, fertilisation would not be possible. With no fertilisation, no seed will be produced.
ONLY ANSWER IF YOU KNOW
What is the main function of the Krebs cycle?
A. To break glucose down into two pyruvate molecules
OB. To produce carbon dioxide for use in the thylakoid
O C. To produce large numbers of ATP molecules
O D. To provide molecules for the electron transport chain
Answer:
I may be wrong but I think it is C
PLS HELP
One important organelle that is found in plants, but not in animals is called chloroplast.
It is the site of _________.
4. What is soil conservation?
Answer:
The prevention of loss in the most top layer of soil from the erosion or maybe prevention of deducted fertility
How will weathering and erosion most likely change the map over a long period of time?
Answer:
The lines near the bottom of the mountain will become perfect circles. There will be fewer lines near the top of the mountain and they will be further apart. ... The lines near the bottom of the mountain will become straighter.
Answer:
i gotchu
Explanation:
weathering and erosion shapes down land and coastlines, so eventually overtime, our maps start to change and look different
The dew point is the point at which the
water vapor beings to fall out of the air?
True or
False
Answer:
The dew point is the temperature when water will start to condense out of the air. When air is saturated as much as possible with water vapor it is at the dew point. Air that is holding less vapor than it actually could is below the dew point
Name 3 characteristics of each physical state of matter.
Solid:
Liquid:
Gaseous:
Answer:
solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume. change of state: When matter is converted from one of the three states (example: solid, liquid, or gas) to another state.
Explanation:
Answer:
Solid:
High Density
Definite mass, volume, and shape
Solids are incompressible and rigid
Liquid:
No definite shape (takes the shape of its container)
Has definite volume.
Particles are free to move over each other but are still attracted to each other.
Gaseous:
They are easy to compress
They expand to fill their containers
They occupy far more space than the liquids or solids from which they form
Explanation:
GIVING BRAINLIEST!!!
Which air temperatures usually result in snow and other forms of solid precipitation?
A) Freezing air temperatures
B) Cool air temperatures
C) Hot air temperatures
D) Warm air temperatures
Answer: B) Cool air temperatures
Explanation: Snow requires temperatures at the ground to be near or below freezing.
outline how the nephrons carry out their processes (4marks)
Think of an object, person, or place at home that functions similar to the cell membrane.
i think its a plant or dog since both of them also have cells
Because it permits materials to enter and exit a cell, a cell membrane can be compared to a door. A door allows objects to pass through it as it opens and closes.
What is cell membrane made of?With a few rare exceptions, p - series, which are made up of glycerol, a nitrogen base, and two fatty chain, are the primary component of cellular membranes, both cytoplasmic membrane and interior membranes. Therefore, the cell membrane serves two purposes: first, as a barriers keeping the components of the cell inside and undesired materials out, and second, as a gate permitting the passage of vital nutrients through into cell as well as the flow of byproducts out of the cell.
What role does the cell membrane perform?Every cell has a phospholipid bilayer, also called a cell wall, that shields the inside of the body from the outside world. The cell barriers is a lipid bilayer that is porous. The cell regulates the flow of substances from and to the cell.
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13. When each allele in a heterozygous genotype influences the phenotype and
They have both traits associated with the aileles it is called
Answer:
Polygenic Trait
Explanation:
A taits phenotype is influenced by more than one gene. Traits that display a continuous distribution, such as height or skin color, are polygenic.
what happens when you start to go deeper into the atlantic ocean in your own words please?
Answer:
the density of the water will keep crushing you until you are DEAD
Explanation:
Answer:
not sure if you still want an answer, but here:
the further down you go, the colder it'll get because the sunlight won't reach down as far, also making it darker. the pressure will also keep building up until it gets to be too much for your body to handle and literally crushes you.
The diagram above shows a cell placed in a beaker with salt water. The cell is permeable only to water. What will happen to the cell?
Answer:
It will swell
Explanation:
Since it is only permeable to water, the cell will try and reach homeostasis with it surroundings (it will take in water to decrease the concentration of salt in the cell).
Think of an object , person or place at home that functions similar to the chloroplast.
Answer:
a genarater powers a home
Explanation:
What is the importance of neutral variation in evolution?
A trait that is neutral in one environment may be advantageous in another.
It is usually removed from the population by natural selection due to its deleterious phenotypes in the environment.
A trait that is neutral will most likely be removed from the gene pool.
It will cause for a population to risk decline and extinction.
Answer:
A trait that is neutral in one environment may be advantageous in another.
Explanation:
Neutral variation refers to the variation (either genetic or phenotypic variation) which is unaffected by natural selection. Neutral variation is known to increase genetic variation, which is a prerequisite to evolutionary change. An allele may be neutral in one environment and beneficial (or deleterious) in another. In consequence, neutral variation in one environment may increase the response to selection in different environmental conditions.
What are the 3 main processes common between terrestrial and aquatic ecosystems?
Answer:
Three main processes that are common between these are that they both make food through photosynthesis, they both perform transpiration, and they both need sunlight in order to process chemical energy.
I really hope this helped and have a great day! :)
The process that are seen in both terrestrial and aquatic ecosystems are;
Transpiration process
Photosynthesis for food synthesis
Energy through sunlight.
An ecosystem can be regarded as geographic area which contains plant as well as animals with other organisms and weather and landscape and they all carried out different functions so that bubble of life is formed.Ecosystem could be terrestrial as well as aquatic ecosystems.An aquatic ecosystem can be regarded as types of ecosystem containing body of water. In contrast to terrestrial ecosystems that is associated to land, there are Communities of organisms that their dependent is on each other as well as the environment all live in aquatic ecosystems.Aquatic ecosystems could contains body of oceans as well as lakes rivers, and stream.Terrestrial ecosystem can be regarded as community of organisms that dominate land, as well as interactions that exist between biotic as well as abiotic components in a given area. Some of terrestrial ecosystems are tundra, taigas as well as temperate deciduous forests and tropical rainforests.Some of the processes that can be attributed to both terrestrial and aquatic ecosystems are;
Making of their food could be through photosynthesis, this is the process whereby plant makes their food through the energy from sunlight.Sunlight is required as a source to process energy. Transpiration can be regarded as process involving movement of water through a plant, this could also encompass the evaporation of this water from aerial parts which could be in the leaves as well as stems and flowers.Therefore, both terrestrial and aquatic ecosystems have some process in common.
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which key process in biology is explained in the diagram above?
Answer:
ok
Explanation:
Hi I think the answer is bit C but I am not sure
What is a chromosome?
O A colorful DNA
O A portion of DNA
O A broken DNA
O A sequence of DNA
O A piece of DNA
O A bundle of DNA
NO LINKS I WILL GIVE BRAINLIST ALSO WITH 15 POINTS SO TAKE IT SERIOUSLY
Answer:
J is the correct answer
Explanation:
hope this helps
why give scientific names?
a. common names are misleading
b.names can be different according to the name of that country
i will give brainliest to the correct most detailed answer
How does the structure of the spins cord being long and flexible help it with its function
Plz!
Explanation:
The spinal cord functions primarily in the transmission of nerve signals from the motor cortex to the body, and from the afferent fibers of the sensory neurons to the sensory cortex. It is also a center for coordinating many reflexes and contains reflex arcs that can independently control reflexes.
What is stored in the nucleus?
Answer: The nucleus (plural, nuclei) houses the cell's genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm. hopes this helps pls pls pls give me brainliest.
Explanation:
Answer:
Within the nucleus, DNA molecules, the cell's genetic machinery, are stored, repaired, transcribed and eventually replicated. Around the outside of the nucleus is an envelope consisting of two layers of membrane.
Explanation:
PLs mark me Brainliest.
Some one please help
1. Cell
2. Blood
3. Cells
4. Epithelial
5. Tissues
6. Stomach
7. Organs
8. Digestive
9. Organism
10. Human
Answer:
1. cell
2. blood
3. cells
4. epithelial
5. tissues
6. stomach
7. organs
8. digestive
9. organism
10. human
Explanation: Hope this was helpful....