Answer:
I think it would be #3, Beaks got longer because the only birds that survived had larger beaks that could crack the hard seeds
Explanation:
In years of extreme drought, the small, delicate seeds get eaten up quickly, leaving behind only the largest, toughest seeds.
how does your body acquire the oxygen the cells in your body need to function?
Answer:
You take in oxygen and it goes to your lungs. It spreads through your body, going through your bloodstream, and going to your heart. The excess oxygen turns into carbon dioxide leaves through your mouth. When it leaves, the plants take the carbon dioxide and turn it back into oxygen, and repeating this process.
(I'm pretty sure this is the answer. Hope it helps:)
Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
What are the functions of hemoglobin?Hemoglobin is a protein in your red blood cells that carries oxygen to your body's organs and tissues and transports carbon dioxide from your organs and tissues back to your lungs.
Hemoglobin, abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein present in red blood cells of almost all vertebrates as well as the tissues of some invertebrates. Hemoglobin in blood carries oxygen from the respiratory organs to the rest of the body.
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.
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Dealing with matter, how do producers get the nutrients they need?
connective tissue structures that attach bone to muscle are called
Answer:
those connective tissues are called Tendons.
Explanation:
A tendon is a fibrous connective tissue that attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. tendons are often confused with ligaments, ligaments are fibrous connective tissue that attaches bone to bone, and usually serves to hold structures together and keep them stable
List and describe the cell phases that go through assuming they complete mitosis
Answer:
There are four stages of mitosis: prophase, metaphase, anaphase and telophase.1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3)
Explanation:
Which type of wave forms at the boundary between air and water when you
drop a rock into a pond?
Answer:
ty
Explanation:
Waves at the surface of the ocean and lakes are orbital progressive waves. This type of wave forms at the boundary of two liquids of different density, in this case air and water.
Which form of heat transfer takes place when you touch a hot stonea. convectionb. subductionc. conductiond. radiation
which source of calories causes the body to expend the most energy during digestion?
The consumption of energy during digestion is known as the thermic effect of food.
Consuming food is how we get the energy needed to sustain the basic functions of our organisms. Digesting this food, however, also takes up energy. In fact, about 10% of the energy we expend daily is allocated towards the digestion and storage of food and nutrients. This is known as the thermic effect of food.
On average, the food with the highest thermic effect is that of vegetables and fruit with high water compositions. This, however, falls a bit out of the scope of the question given that these foods are often very low in calories. The food that is high in calories and has a high thermic effect is protein. On average, proteins consume 20-30% more energy to digest than other sources of calories.
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Which statement is true? (1 point)
Most protists only respire without oxygen.
Most protists can respire with small amounts of oxygen.
Most protists can respire with and without oxygen at will.
Most protists only respire with oxygen.
The true statement is : ( C ) most protists can respire with and without oxygen at will
ProtistsProtists are eukaryotic organisms that can respire either through aerobic respiration ( the use of oxygen ) mostly for obligate protists. while certain parasitic protist can respire through anaerobic respiration process ( without the use of oxygen ).
Protists can be Fungi, animal or even plants therefore from the options given above most protists can respire with and without oxygen.
Hence the true statement is most protists can respire with and without oxygen at will.
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Answer:Most Protists only respire with oxygen
Explanation: I just took the test, this is 100% correct
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Answer:
24 sq meters
Explanation:
4 times 6 is 24
Answer: Try 24m^2 so just type in answer box “2”
Explanation:
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A human has 46 chromosomes in each body cell. How many chromosomes would be found in its daughter cells after mitosis
Answer:
Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II. At the end of meiosis I there are two haploid cells.
in what part of the cell does transcription occur?
Answer:
Nucleus
Explanation:
what is the purpose of motor nerve varicosities as they relate to smooth muscle?
Neuroeffector junctions are varicosities where motor neurons release neurotransmitters to non-neuronal target cells. These junctions can be observed along the axon.
The motor nerve varicosities RELEASE neurotransmitters onto smooth muscle cells.There are many varicosities along the axons of the neurons that feed smooth muscle cells. When autonomic neurons are stimulated, varicosities release neurotransmitters along their axons.These neurotransmitters then diffuse through the interstitial fluid to interact with receptors in the smooth muscle cells.Learn more in:
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help me, please i really need help
Answer:
a. graduated cylinder
b.ruler
c. thermometer
d. triple balance beam
4. they allow more accurate results
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How do endodermal cells differ from other types of cells?
Answer:
The endodermis is not highly differentiated in stems and usually contains secondary starch. In the roots, the radial and transverse walls of the endodermal cells have bandlike thickenings containing suberin and lignin.
Explanation: PLS MARK BRAINLIEST
why do the functions of many receptor kinases depend on the fluid nature of the plasma membrane?
Complete Question
Why do the functions of many receptor kinases depend on the fluid nature of the plasma membrane?
The generation of cAMP requires a fluid membrane.Binding of ligand to the receptor requires a fluid membrane. The receptor monomers must move together and dimerize to be activated. Phosphorylation requires a fluid membrane.We have that
The reason why the functions of many receptor kinases depend on the fluid nature of the plasma membrane is because
Phosphorylation requires a fluid membrane.
Generally
kinase
This substance is simple defines as a facilitator for phosphate forms to move from a specific energy level to its specific sub levelsNow we recognize this phenomenon as Phosphorylation Phosphorylation being a process that facilitates the movement of phosphates requires a fluid membrane.
Therefore
The reason why the functions of many receptor kinases depend on the fluid nature of the plasma membrane is because
Phosphorylation requires a fluid membrane.
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most glands in the human body are a part of which system?
Answer: The endocrine system is a network of glands in your body that make the hormones that help cells talk to each other. They're responsible for almost every cell, organ, and function in your body.
which gases contribute to the greenhouse effect brainly
Answer:
carbon dioxide, methane, nitrous oxide, water vapor
Explanation:
these all are greenhouse gases
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during the process of ________, an existing tissue is replaced by bone.
Answer:
Tissues are replaced by bone during the ossification process.
Explanation:
of the two cells represented in the figure, which would likely be more efficient at exchanging substances with the surrounding environment?
Cell A is more efficient at exchanging substances due to larger surface area to volume ratio.
Cell A is more efficient at exchanging substances with the surrounding environment than cell B because it has the larger surface-area-to-volume ratio. Larger surface area of the cell exchanges more substances with the surrounding environment.
While on the other hand, lower surface area of the cell exchanges less materials with the environment so we can conclude that cell A is more efficient at exchanging substances due to larger surface area to volume ratio.
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if a cell lacked ribosomes, it would not be able to
Answer:
build or break down proteins
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what part of the nucleotide forms the rungs of the ladder
Awnser question in image
Answer:
B. 48 degrees c
Explanation:
Answer:
48 Degrees Celsius
Explanation:
It’s going up by one more than it went up the last time. Another way of looking at it is the increasing factor of the degrees is being added by one every single 2 hours.
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Predict what would happen to a freshwater fish if it were placed into a marine environment (salt water). Justify using your knowledge of osmosis. *
Answer:
Die, eventually.
Explanation:
It's very dangerous, for any organism, but for a fish whose cells are isotonic with freshwater, is placed in seawater, its cells will take on excess water, lyse, and the fish will die.
How can you tell the age of a twig?
Answer:
The age of the whole twig can usually be determined by counting back from the longest branch.
Answer:
Para calcular la edad de los árboles según este método: Medir la circunferencia del tronco a una altura de unos 140 cms respecto al suelo. CaLcular el diámetro: dividir la circunferencia entre pi (3,1416). Multiplicar el diámetro obtenido por el factor de crecimiento medio de la especie del árbol.
Explanation:
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a student conducts an experiment to test how the temperature affects the amount of sugar that can dissolve in water. in the experiment, she uses 100 milliliters of water in each trial and stirs for five minutes each time. what is the independent variable in this experiment?
where does the krebs cycle take place in the mitochondria?
Answer:
In eukaryotes, the Krebs cycle reactions take place in the mitochondrial matrix, a dense solution that surrounds the mitochondria crests: in addition to water, the matrix contains all the enzymes necessary for the biochemical reactions of the cycle, coenzymes, and phosphates.
Explanation:
Why are food chains limited in how long they can be?
plss help
Answer:
Energy is transferred between trophic levels when one organism eats another and gets the energy-rich molecules from its prey's body. However, these transfers are inefficient, and this inefficiency limits the length of food chains.
In this graph, what are the independent and dependent variables?
Answer:
Wing beats are independent and the mass of hummingbird are dependent.
Explanation:
Because the y-intersept is independent and the x-intersept is dependent.
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Pure water would have what kind of tonicity?:
Answer: Tapwater and pure water are hypotonic. A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.
Explanation:
the time between inoculation and the beginning of growth is usually called the
Answer:
Generation TimeExplanation:
Generation Time. In eukaryotic organisms, the generation time is the time between the same points of the life cycle in two successive generations. For example, the typical generation time for the human population is 25 years.
Answer:
Lag time is defined as the initial period in the life of a bacterial population when cells are adjusting to a new environment before starting exponential growth.