Answer:
Helper T-cells interact with target cells by recognizing antigens that are complexed with MHC proteins
Explanation:
please consider as brainlest if i helped toy
A common error is to describe arteries as the vessels that always transport ______ blood instead of describing it as a vessel that takes blood ______ from the heart.
An error is to describe arteries as the vessels that always transport oxygenated blood instead of describing them as vessels that take blood away from the heart.
What is an artery?An artery is a big blood vessel that transport enriched oxygen blood to all part of the human body.
This rich oxygen blood is used by human tissues to carry out cellular respiration (aerobic cell respiration).
Moreover, veins are other types of blood vessels that are also capable of carrying blood toward the heart.
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In a mammalian visual system, visual information is integrated at ________.
Answer:
In a mammalian visual system, visual information is integrated at the lens
Explanation:
Consumption of which prey makes the elf owl a tertiary consumer? select all that apply.
Consumption of the praying mantis prey makes the elf owl a tertiary consumer in a particular food web.
What is a consumer?In a food web, a consumer is a heterotrophic organism that needs to eat other organisms to survive.
Plants and algae are producers because they generate their own food to survive.
A tertiary consumer is located at the fourth trophic level in the food web (after secondary consumers).
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1. Brittle deformation is generally seen in
a. rocks far below Earth's surface
b. rocks with strong internal molecular bonds
c. limestone and schist
d. gypsum and shale
Answer:
Brittle deformation is seen in - Rocks that are present far below the earth's surface.Explanation:
option a is correctAnswer:
(b) rocks far below Earth's surface
The magnetic force will push magnets apart if you hold the
Your answer:
north poles of two magnets close together.
south poles of two magnets close together.
north pole of one magnet near the south pole of another magnet.
Both (a) and (b)
Answer:
D. both a and b
Explanation:
If you hold the north poles of two magnets close together, the magnetic force will push the magnets apart. The same is true if you hold the south poles close together. If you hold the north pole of one magnet close to the south pole of another magnet, the magnetic force will pull the magnets together.
What are some ways that scientists and engineers are using our understanding of DNA?
Instructions: (H.W. # 4) Bubble in correct answers and write responses to the constructed response questions. Base your answers to questions 1 and 2 on the information and diagram below and on your knowledge of biology. The diagram represents a cell. A B 1) Which structure is responsible for the passage of materials into and out of the cell? (1) A (3) C (2) B (4) D Support your answer to question (1) with a written response..
Answer:
Answer = A
Explanation:
The cell membrane separates the material
Extracellular and intracellular materials are separated by the cell membrane. Controls the flow of substances into and out of a cell and maintains the integrity of a cell. The cell membrane, or cell boundary, must provide access to all materials within a cell.
Julia made a model of a cell in a clear plastic zipper bag. She used a marble for the nucleus and pinto beans for mitochondria.
Which of the following options would be best for making her model more like a plant cell?
A.
Put the bag inside a clear plastic box.
B.
Put the bag inside a larger clear plastic bag.
C.
Take the marble out of the bag.
D.
Take the pinto beans out of the bag.
Answer:A
Explanation:I did this 1
Why were there no coal deposits formed during the Precambrian time? Choose the correct answer. There were no swamps with land plants. There was not yet enough carbon on Earth. There was not enough land on which coal deposits could form. There was not enough carbon dioxide in Earthâs early atmosphere
There were no coal deposits formed during the Precambrian period because there wasn't enough carbon dioxide in Earth's early atmosphere.
What is the Precambrian?The Precambrian is a Super Aeon, corresponding to the time period from the formation of the Earth (~4.6 billion years – b.a.) to the beginning of the Cambrian Period (~542 million years – m.a.).
With this information, we can conclude that there were no coal deposits formed during the Precambrian period because there wasn't enough carbon dioxide in Earth's early atmosphere.
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Which hormone produced by the kidneys stimulates hematopoiesis.
Answer:
Erythropoietin hormone
How much money do you get for donating plasma the first time?.
Answer:
$50 for your first five donations.
Which method is best for seperating salt and breadcrumbs?
Answer:
Filtering to obtains breadcrumbs and the heat the salt solution to saturation and cool it
What do most birds do in the wintertime?
Answer:
Most birds migrate south in the wintertime.
Explanation:
Hope that helps!
Answer:
[tex]beinggreat78[/tex] here to help you!
Most birds torpor or migrate.
What does, "Torpor" mean?Torpor is a sleep-hibernate-like state where birds lower their body temperature as well as heart rate to maintain their body heat. This allows them to survive for the winter time.
In the dna isolation process, detergent was used to:.
In the DNA isolation process, detergent was used to:
--> facilitates homogenization. it allows the precipitate to form and stabilizes the DNA and it binds the negative ends of DNA.
Hope that helps!
The axon sends the messages
from the cell body to the
a
A. motor cortex
B. synaptic knob
C. limbic system
Which statement best describes how bacteria recycle matter in an ecosystem?.
What describe how bacteria recycle matter in an ecosystem is that Bacteria break down organic debris to recycle nutrients in the ecosystem.
What is Recycling?Recycling is the process where wastes are collected and are break down into smaller and new pieces by microorganisms such as bacteria to form new product that are effective,healthy and use ful to the ecosystem.
Therefore, What describe how bacteria recycle matter in an ecosystem is that Bacteria break down organic debris to recycle nutrients in the ecosystem.
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Please help!!! Need the answerr
Answer:
C
Explanation:
Mined materials are used for different purposes
Mining is the process of removing valuable materials from the Earth's surface, including the oceans, hence option C is correct.
What is mining?Extraction of useful materials from the ground is known as mining. A few notable exceptions, a mineral is an inorganic substance found in nature that has a unique chemical composition, physical characteristics, or molecular structure.
Mined materials include coal, gemstones, and iron ore, to name a few. The raw substance used to make iron is called iron ore. Mining has existed since the primordial era.
In essence, it is the procedure used to extract valuable information from large amounts of data or data warehouses.
It is clear that the phrase itself is a little ambiguous. Coal or diamonds are the end product of the extraction process in the instance of mining for coal or diamonds.
Therefore, humans mine materials for different purpose.
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1. Decide if the following statements are True or False. If the statement is False, rewrite the statement to make it True.
a. Most cells are visible to the human eye without a microscope.
b. The cell carries out all functions for survival.
c. Prokaryotes are unique because they have no nucleus.
d. Eukaryotes are complex cell with organelles but with no nucleus.
e. Cells have cytoplasm.
f. Almost all living things are made of cells.
g. The cell membrane prevents some chemicals from entering the cell.
h. Plants need chloroplasts for photosynthesis.
i. Animal cells have a cell wall instead of a cell membrane.
j. In a cell, the breakdown of food molecules releases energy.
k. The cell passes waste materials from inside the cells to outside the cells.
l. Cells reproduce in orderly fashion according to the type of cells.
This is a ___________ gibbous moon.
a) crescent
eliminate
b) new
c) waning
d) waxing
This is a new gibbous moon.
Name the following molecular compounds: CO, N2O4, PCI3.
Answer:
CO = carbon monoxide
N2O4 = Dinitrogen tetroxide
PCl3 = Phosphorus trichloride
What is one potential benefit and one potential negative impact of genetically engineering crops?
Answer:
potential benefit: more nutritious food
potential negative impact:biodiversity loss
The energy from organic food molecules is stored in ATP in the process of?
Answer:
ATP molecule Energy is stored in the bonds between the phosphate groups (PO4–) of the ATP molecule. When ATP is broken down into ADP (adenosine diphosphate) and inorganic phosphate, energy is released. When ADP and inorganic phosphate are joined to form ATP, energy is stored.
Explanation:
Which is required for all organisms to survive?
Question 1 options:
Carbon dioxide
Water
Sunlight
Blood
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For a Normal living organism to survive, each of the above necessities are important.
Therefore, we can say : it's All of these
Explain the importance of your group using your cut leaf and not the cut leaf from another group to determine surface area.
Answer:
leaf sizes vary
Explanation:
all leaves can never be the same
The sum of the genetic traits in this population
called its ✓ gene pool
COMPLETE
In guinea pigs, fur length is controlled by one
gene. The Fallele generates long fur and the f
allele generates short fur. Because only one F
copy is needed to show the trait, if a guinea pig
has the FF or Ff allele combination, they will have
long fur. If they have the ff allele combination, they
will have short fur
There is a total of 4 y alleles in this populatio
There are
Falleles in the population,
There are
falleles in the population
Look at the data for a guinea pig population to
answer the following questions,
DONE
Guinea pig 1: Long fur (FF)
Guinea pig 2 Short fur (ff)
Guinea pig 3. Long fur (FF)
The fur length of the guinea pig will depend on the alleles present in the offspring, whether they are dominant or recessive.
What are dominant and recessive traits?Dominant traits are characters which are always expressed in an offspring wherever they occur.
Recessive traits on the other hand are expressed only if the dominant trait is absent in the offspring.
In the trait for fur length in guinea pig, there are two alleles for it.
F is for long fur and is dominant f is for short fur and is recessive.Thus, the possible combination of the two alles will be:
FF for long furFf for long fur andff for short furTherefore, the fur length of the guinea pig depends on the alleles present in th offspring, either dominant or recessive.
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How do the circulatory system and immune system work together to respond to an injury?
A Increased blood flow kills healthy cells which prevents infection at the site of the injury
B Increased blood flow removes infected cells from the body at the site of the injury.
C Increased blood flow carries white blood cells to the site of the injury.
D Increased blood flow allows for an increase in the exchange of o, and co, at the site of the
injury
Answer:
C. Increased blood flow carries white blood cells to the site of the injury.
Explanation:
What nonrespiratory air movement is due to a spastic contraction of the diaphragm while the glottis is closed
Answer:
Hiccup is what a nonrespiratory air movement is due to a spastic contratction.
which parts of the flower are under more intensive selection for showiness (size, scent, color), the seed-producing part or the pollinator-producing parts
Answer:
The pollinator-producing parts.
Explanation:
Showiness, as described in the question, is based on size, scent, and color.
The pollinator-producing parts have certain scents, sizes, and colors to 'pop out' so they attract pollinators such as bees, so the flower can reproduce.
what is the answer to this question its biology
Answer:
The second one?
Explanation:
That's very complicated but from what I can tell it looks like it would be the second answer
The excretory structures of terrestrial arthropods are slender projections from the digestive tract that are attached at the junction of the midgut and hindgut. These are called:.
The excretory structures of terrestrial arthropods are slender projections from the digestive tract called malpighian tubules.
What are Malpighian tubules?The malpighian tubules are channels in the digestive system of the alimentary canals present in arthropod species.
The Malpighian tubules function to provide an excretory system and osmo-regulatory system to arthropods.
These slender tubules are fundamental for the survival of many species of insects (i.e., arthropods).
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