Stabilizing selective pressures result in _______. a. rapid, broad evolutionary changes b. limited evolutionary changes c. an increase in genetic diversity d. extreme gene distributions
Answer:
B
Explanation:
Answer:
B. limited evolutionary changes
Explanation:
Where does the water enter the plant in photosynthesis?
Answer:
The water needed for photosynthesis is absorbed through the roots and transported through tubes to the leaf. The roots have a type of cell called a root hair cell. These project out from the root into the soil, and have a big surface area and thin walls. This lets water pass into them easily.
Explanation:
Hope this helps
bark bark potato (ignore this)
Why only certain cell undergo mitosis
and why other cells undergo meiosis
Explanation:
Mitosis allows for cells to produce identical copies of themselves, which means the genetic material is duplicated from parent to daughter cells. Mitosis produces two daughter cells from one parent cell. Single-celled eukaryotes, such as amoeba and yeast, use mitosis to reproduce asexuallyand increase their population. Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. ... Meiosis begins with a parent cell that is diploid, meaning it has two copies of each chromosome.
Hope my answer explains things better for you!!
The organisms that are usually fossilized
by replacement are what?
Answer:
when the original shell or bone dissolves away and is replaced by a different mineral; when this occurs with permineralization, it is called petrification. In compression, the most common form of fossilization of leaves and ferns, a dark imprint of the fossil remains.
Explanation:
Which statement accurately describes sickle cell anemia?
Answer:
Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body
Explanation:
Answer:
A group of disorders that cause red blood cells to become misshapen and break down.
Explanation:
With sickle cell disease, an inherited group of disorders, red blood cells contort into a sickle shape. The cells die early, leaving a shortage of healthy red blood cells (sickle cell anemia), and can block blood flow causing pain (sickle cell crisis).Infections, pain, and fatigue are symptoms of sickle cell disease.
Which list correctly aligns the levels of organisms from the least to the most complex?
A. cell → tissue → organ → system
B. system → tissue → organ → cell
C. organ → system → tissue → cell
D. tissue → organ → cell → system
If the Moon had oceans would there be tides similar to what we
experience on Earth? Explain.
Answer:
yes,the gravitational pull is less on the moon
hope this helps:)
Answer:
If the conditions of the moon were like that of Earth (if it had continents and oceans), then Earth's gravitational pull on the tides on the Moon would be many tides greater than on Earth
fill in the table:-
characteristics of oviparous Animals
characteristics of viviparous animals
Answer:
animals which give birth by laying eggs are called oviparous animals. eg: birds
animals which give birth as alive young ones are called viviparous animals . eg: mammals like cat, dog , human etc.
how many antennae’s does a dragonfly have?
Answer: Dragonflies have two antennae.
(hope this helps ^^)
This stadium can hold 100,000, or 1x10, people. The
number of atoms in a grain of iron is about 1x 1016,
Would you need 1 x 10° or 1 x 10' stadiums to hold
the same number of people as the number of atoms in
a grain of iron? Explain your answer,
Answer:
1 x 10^13 stadiums will be needed in this scenario
Explanation:
We are told that
1 stadium holds = 1 × 10^5 people and
Number of iron atoms = 1 × 10^18 atoms
If the stadium carries an equivalent number of atoms as that of people.
We can infer that 1 stadium will carry 1 × 10^5 atoms.
The calculation to determine the number of stadiums would then be 1 × 10^18 divided by 10^5 atoms/stadium which was gotten by dividing the total number of atoms by the number of atoms per stadium.
Number of stadiums = Total number of atoms ÷ Number of atoms per stadium
= 1 × 10^18 atoms ÷ 1 × 10^5 atoms/stadium
= 1 × 10^13 Stadiums
This means that 1 × 10^18 atoms would occupy 1 × 10^13 stadiums
Both protein and carbohydrate molecules tend to form chains. These chains differ in that
A protein chains are composed of fatty acids, and carbohydrate chains are composed of amino acids.
В.
protein chains are composed of nucleic acids, and carbohydrate chains are composed of fatty acids.
С.
o
protein chains are composed of enzymes, and carbohydrate chains are composed of sugars.
D. O protein chains are composed of amino acids, and carbohydrate chains are composed of sugars.
Both protein and carbohydrate molecules tend to form chains. These chains differ in that protein chains are composed of amino acids, and carbohydrate chains are composed of sugars. Thus, option D is correct.
What is protein?
Protein has been defined as the large macromolecules as well as biomolecules that are used to made up of the long chains of the amino acid. There has been various function of the protein such as the DNA replication, speeding up of chemical reaction which helps to maintain the structure of cell.
The main function of the protein has to maintain the structure and function of the organs, repair muscle, and the muscles. Diet contains high protein has been recommended for the purpose of losing weight, reducing fat, or increasing fat.
There are several types of the protein such as the structural protein, transport proteins, antibodies, contractile proteins, hormonal proteins, and enzymes.
Therefore, Both protein and carbohydrate molecules tend to form chains. These chains differ in that protein chains are composed of amino acids, and carbohydrate chains are composed of sugars. Thus, option D is correct.
Learn more about protein here:
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can someone help me?
Answer:
Herbivore
Explanation:
The grasshopper eats grass and does not seem to eat anything else in the food web, so it is a herbivore. Herbivores are organisms that eat plants, and since the grasshopper furfills this definition, therefore it is a herbivore. It is not a carnivore because carnivores do not eat grass. It is not a decomposer because it does not break down dead material. It is not an omnivore because it does not eat both plants and animals.
During which stage of the life cycle is a star a ball of gas and dust?
Answer:
The sixth stage in a low mass stars life, the remains of the red giant is a glowing ball of gas about the size of earth. Nuclear fusion has stopped and the gas begins to cool.
The table shows the masses of different samples of liquid. Which sample has the greatest DENSITY?
A) Sample A
B) Sample B
C) Sample C
D) Sample D
Answer:
you cant see the samples
Explanation:
Which four nutrients cycle through all of Earth's spheres and organisms?
Answer:
water, carbon, nitrogen, phosphorus, and sulfur cycles.
Explanation:
Biogeochemical cycles important to living organisms include the water, carbon, nitrogen, phosphorus, and sulfur cycles.
L 6.2.5 Quiz: Electromagnetic Waves
Question 3 of 5
Which two types of waves require matter in order to travel?
I A. Electromagnetic waves
B. Sound waves
C. Water waves
0 D. Light waves
Can’t see
To find an answer
Which answer best explains the difference between protists and bacteria?
A. Bacteria are prokaryotes and protists are eukaryotes
B. Bacteria have a cell membrane while protists do not
C. Bacteria have ribosomes while protists do not
D. Bacteria have cytoplasm while protists do not.
Answer: B hope this helps
Explanation:
How is cold front formation different from stationary front formation? Stationary fronts form between warm and cold air masses, while cold fronts form when a cold air mass advances against a warm air mass. Cold fronts form between two air masses that barely move, while stationary fronts form when a warm air mass is trapped between two cold air masses. Cold fronts form when a warm air mass moves over a cold air mass, while stationary air fronts form when a cold air mass moves over a warm air mass. Stationary fronts form when a warm air mass is trapped between two cold air masses, while cold fronts form when a warm air mass moves over a cold air mass.
Answer: A
Explanaation:
Answer: A
Explanation: got it right on E D G E 2021
What does a high population density indicate?
O The area is being overfished.
O The species is likely to face extinction.
O There is no other place for that species to live.
O Food supply is high and the number of predators low.
Answer:
O Food supply is high and the number of predators low.
Explanation:
Population density is defined as the population living in per square mile/km.
High population density indicate that the people living in an area have high food supply and the number of predators low. Predators are responsible to control the population but due to high food supply and low predators, there will be no control in the population and no control in the feeding behavior of the population that leads to High population density.
Hence, the correct option is "Food supply is high and the number of predators low."
Answer:
D; Food supply is high and the number of predators low.
Explanation:
in passive transport molecules move from _____ concentration to______ concentration
help please .. fill in blanks question
Answer:
High to low concentration
Explanation:
Check Your Understanding
1. Which of these abiotic factors would contribute
to a clumped dispersion pattern in an ecosystem?
Select all correct answers.
a. unlimited water
b. limited water
c. high temperatures
d.moderate temperatures
e. ample rainfall
f. limited rainfall
Answer
[] B
[]C
[]F
If an organism is multicellular, it probably has
A.) Prokaryotic cells
B.) Eukaryotic cells
C.) Cancer cells
D.) All of the above
Answer:
B. Eukaryotic cells
Explanation:
Prokaryotic cells are only seen in unicellular organisms as bacteria and cancer cells are just cells where there has been an error in division or a mutation.
If an organism is multicellular, it probably has - option B.) Eukaryotic cells.
Cells are of mainly two types prokaryotic cells and eukaryotic cells. The main difference between eukaryotic and prokaryotic cells is that:
Eukaryotic cells have a nucleus in which genetic material is stored enclosed by a nuclear membrane.All prokaryotic cells only form single-celled (unicellular) organisms without a true nucleus or membrane-bound structures, examples of prokaryotes are bacteria and archaea. Organisms with eukaryotic cells are called eukaryotes that can be either multicellular such as animals, plants, fungi, and protists, or single-celled as well. So, all multicellular organisms are eukaryotes..Thus, If an organism is multicellular, it probably has - option B.) Eukaryotic cells.
Learn more about multicellular organisms:
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Atoms of two different elements must have o ferent
electrical charges.
numbers of neutrons.
o atomic numbers.
O energy levels.
Answer:
atomic numbers
Explanation:
In order for two atoms to be different, they have to have a different number of protons. Protons are represented by the atomic number. Thus, atoms of two DIFFERENT elements must have different atomic numbers.
I took the test and got 100%
Hope this helps!
The endosymbiotic theory provides compelling evidence that mitochondria and chloroplasts were once primitive bacterial cells. How are chloroplasts and mitochondria similar to prokaryotes? All but ONE apply. A) Chloroplasts and mitochondria contain DNA. B) Chloroplasts and mitochondria have a nucleus. C) Chloroplasts and mitochondria contain ribosomes. D) Chloroplasts and mitochondria have a double membrane.
Answer:
The correct answer is - Option A and option D.
Explanation:
Mitochondria and chloroplast both have their own DNA as the prokaryotic cells like bacteria. The DNA found in these organelles are circular formation like DNA in prokaryotes.
They contain their own ribosomes that are a small organelle that helps in the production of protein. The ribosomes found inside chloroplasts and mitochondria similar in size that present in prokaryotic cells.
Thus, the correct answer is - Option A and option D.
Answer:
B, C, & D
Explanation:
fw meeee
What does undescribed organisms mea
Answer:
In taxonomy, an undescribed organism is a taxon (for example, a species) that has been discovered, but not yet formally described and named.
Explanation:
Answer:
yep hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmj
Explanation:
is bacteria living? yes or no
Answer:
yes
Explanation:
Answer:
Yes
Explanation becasue Bacteria (singular: bacterium) are a major group of living organisms. Most are microscopic and unicellular, with a relatively simple cell structure lacking a cell nucleus, and organelles such as mitochondria and chloroplasts.Bacteria are the most abundant of all organisms.
im from albania and i dont know all of these yet but im here to learn
so how can i explain cloning
Answer:
cloning like making exacg copies of an organism?
I think your asking for how scientist are replicating DNA copies of species to create another. it has been done before successfully with a sheep (her name was dolly i think) some light research will explain it better :)
Who knows anything about anesthesiology??? I'm in the 9th grade, but I think that's what I want to do when I get older.
the branch of medicine concerned with anesthesia and anesthetics
Answer:
Its the doctor thats puts patients to sleep
Explanation:
Brainliest?