By what method do bivalves gain food for nutrition?
They absorb the nutrients they need.
They are filter feeders.
They use their radula to scrape objects to use for food.

Answers

Answer 1

Answer:

They absorb the nutrients they need.

Explanation:

Answer 2

Answer:

They are filter feeders.

Explanation:

i took the test


Related Questions

in general, enzymes are what kinds of molecules?

Answers

Answer:

Enzymes are proteins.

The Vikings were able to effectively use their longboats to wage successful invasions from the water because: (Select ALL that apply)

the boats moveded swiftly and efficiently in the water making it easy to envade their enemies

the longboat rode high in the water, allowing it to sail further in the shallow water and transport the vikings closer to shore

the longboat was effectively camouflaged making it difficult for enemies to see it until it was too late

the long boat was not only fast, but also light enough to be carried over land fortifying bridges​

Answers

The Vikings were able to effectively use their longboats  because of the

following:

The boats moved swiftly and efficiently in the water making it easy to evade their enemies.The longboat rode high in the water, allowing it to sail further in the shallow water and transport the vikings closer to shore.The long boat was not only fast, but also light enough to be carried over land fortifying bridges​.

Vikings made use of the long boat because it was light weighted and the

people could carry it.

The light weight of the ship also ensured that it moved swiftly and was able

to sail in shallow waters.

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what is mauna loa volcano intensity?

Answers

Answer:

And over time, volcanoes made from low lava viscosity are wide and have a shallow slope; these are known as shield volcanoes. Classic examples of shield volcanoes are Mauna Kea and Mauna Loa in Hawaii, as well as Olympus Mons on Mars. When lava has a high viscosity, it's very thick and doesn't flow very well at all.

9,600 cubic miles

Mauna Loa is the largest volcano on Earth with an estimated volume of 9,600 cubic miles (40,000 cubic kilometers). It makes half of the area of the Island of Hawaii. Mauna Loa began to form nearly a million years ago. There is a caldera, Mokuaweoweo, at the summit and rift zones extend to the northeast and southwest.

Explanation:

what experiments led to the discovery of dna as the hereditary material?

Answers

Answer:

In the 1920s, Frederick Griffith He was studying two different strains of a bacterium, called R (rough) strain and S (smooth) strain. He injected the two strains into mice. The S strain killed (virulent) the mice, but the R strain did not (non-virulent). Griffith also injected mice with S-strain bacteria that had been killed by heat. As expected, the killed bacteria did not harm the mice. However, when the dead S-strain bacteria were mixed with live R-strain bacteria and injected, the mice died.

Explanation:

What is the difference between sex-linked traits and autosomal traits in humans?

A.
Sex-linked traits only affect females, while autosomal traits affect both males and females.
B.
Sex-linked traits refer to genes that are on the X and Y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.
C.
Sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex.
D.
Sex-linked traits are passed on through the X and Y chromosomes, while autosomal traits are passed on through the other 22 chromosomes.

Answers

Answer:

the answer would be b

Explanation:

The answer for this question is A

Can someone plz help Me? :(

Answers

C is the right answer

Answer:

C

Explanation:

I think it's c, but I might be wrong

Which statement best describes these cells?
Х
Cell A
Cell B
Cell Blacks vacuoles while cell A has them.
DNA would not be found in either cell A or cell B.
Both cell A and cell
use energy release from ATP.
Both cell A and cell B produce antibiotics.

Answers

Answer:

cell blacks vacuoles while cell A has them

How are these cells classified

Answers

The answer would be B

.
Which of the following statements about classification of organisms is true?

Answers

all of the above

Explanation:

They all fall in the same category of classification it is a trick question.  

state one way of monitoring the activity of the heart other than measuring pulse​

Answers

Answer: fitness tracker or a strap that you put against your chest

Explanation:

Although cellular respiration involves many steps, the whole process can be represented by a single equation.

A + B → C + D + E

Which substances would complete the equation that models the overall process of cellular respiration?

A:
ATP

B:

C:

D:

E:

Answers

Answer:

Glucose,energy , water , hydrogen

A scientist carried out an experiment to follow the movement of carbon atoms within animal cells. To do this, the scientist added glucose with radioactively labeled carbon atoms to a culture of cells growing in a Petri dish.

After a certain amount of time had passed, the scientist tested parts of cells for radioactivity. Radioactivity was detected in various biomolecules, including DNA.


Which of the following statements best explains why radioactivity was detected in the DNA?
Choose 1 answer:

(Choice A)
The DNA was in close proximity to the radioactive glucose during its formation.

(Choice B)
Carbon atoms that were once in the radioactively labeled glucose were used to form DNA.

(Choice C)
The DNA was made up of radioactively labeled glucose subunits.

Answers

Carbon atoms that were once in the radioactively labeled glucose were used to form DNA -  this statement best explains why radioactivity was detected in the DNA.

What is radioactivity in DNA?

Radioactivity is known to induce tumors, chromosome lesions, and minisatellite length mutations.

Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions.

The radiation could damage the cell’s DNA, but the DNA repairs itself. The radiation could prevent the DNA from replicating correctly. The radiation could damage the DNA so badly that the cell dies.

The correct answer is option B.

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Answer:

the answer is b - carbon atoms that were once in the radioactively labeled glucose were used to form DNA

hope this helps! <3

what is the difference between threatened and endangered species

Answers

Endangered is when group of species are at the edge of extinction.
Threatening is when group of species are at the risk of extinction in future.

Which BEST describes the energy transformation in photosynthesis and cellular respiration?

A
B
C
D

Answers

Answer:

I believe the answer is B. That is a tricky question, tho.

Explanation:


The bulky shape of fat cells make them ideal for performing which of the following functions of connective tissue?
Bone movement
Nutrient transport
Filling spaces
Body support

Answers

The bulky shape of fat cells makes them ideal for filling spaces of connective tissue. The fat cells represent a type of connective tissue.

The adipose tissue is a type of connective tissue composed of fat cells known as adipocytes.

These cells (adipocytes) are specialized cells that store fats, which can be produced by the human body or obtained from the diet.

The shape of the adipocytes can be spherical, oval, polyhedral (as part of adipose connective tissue), etc.

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Answer: Filling spaces

Explanation:

Which of the following are examples of sexual reproduction?

A yeast offspring grows out of the body of its parent in a process called budding.
A pollen grain from one flower fertilizes another flower, resulting in the development of a seed.
A bacterium copies its DNA and divides into two daughter cells in a process called binary fission.
A piece of a starfish is broken off and grows into a new starfish in a process called regeneration.
A frog releases sperm over eggs that were laid by another frog, and these cells fuse together. help :,)

Answers

Answer:

A pollen grain from one flower fertilizes another flower, resulting in the development of a seed.

A frog releases sperm over eggs that were laid by another frog, and these cells fuse together.

Explanation:

Sexual reproduction is brought about by fusion of male and female gametes. Reproduction where a part of an existing organism develops into another organism is asexual.

Which of the following includes organisms that can use energy from the sun to make food?

Answers

Answer:

Explanation:

An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms.

Question 2 of 10
Which of the following is a description of a resource that belongs to a country
with a high carrying capacity?
A. Homes are small and house many people.
O B. Food is brought in from other places.
C. Water comes directly from bodies of water.
OD. Food is not always available.
SUBMIT

Answers

Answer:

c

Explanation:

cause it comes straight from the creek behind the houses

Carrying capacity defines the population size supported by a region. Water coming directly from water bodies suggests a high carrying capacity. Thus, option C is correct.

What is carrying capacity?

Carrying capacity is the quantity of the organisms or the population that can be supported in a habitat without any degradation and damage to the environment. It is a crucial factor in ecology.

It can be high and low depending on the availability of water, food, and space. A high carrying capacity can support a large population than a low carrying capacity because of the abundant resources.

Small homes with large family members, imported food items, and scarcity of food are limiting factors that are not the property of the high carrying capacity, instead, abundant availability of water is the characteristic of the high carrying capacity.

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If a red blood cell is in a beaker of water. What are the areas of high and low water concentrations and does the water diffuse in or out of the cell

Answers

Red blood cells place in a solution with high water concentration compared to their content (eg pure water) will gain water by osmosis, swell up and burst. Water will diffuse from a water concentration outside the cell to a lower water concentration inside the cell. Hopes it helps you.

where in the bone are red blood cells made?
periosteum
compact bone
spongy bone
joint capsule

Answers

Answer:

red blood cells or formed in the red bone marrow of bones

One of the end products of cellular respiration is ATP, which is the molecule that cells use for energy. How is ATP produced during cellular respiration.

Answers

Answer:

The breaking down of glucose into energy (Which is ATP).

Explanation:

Answer:

36 ATP molecules are created from cellular respiration in eukaryotic cells

Explanation:

What functional group is found on the head end of a lipid molecule?
a. carboxyl group
b. amino group
X c.omega-3 fatty acid
d. glycerol

Answers

Answer:

Glycerol is a small organic molecule with three hydroxyl (OH) groups, while a fatty acid consists of a long hydrocarbon chain attached to a carboxyl group.

Explanation:

hope it helps

Cartilage tissue is invaded by blood vessels and ___________________that first form spongy bone at the primary ossification center in the diaphysis.

Answers

Answer:

osteoblasts

Explanation:

during which phase of mitosis are the spindle fibres formed around the sister chromatids?

Answers

Answer:

Metaphase

Explanation:

In prophase, spindle fibers start emerging from the centrosomes. In metaphase, the spindle fibers attach to the sister chromatids.

examples of artificial permeable membranes​

Answers

Answer:

kidney tissue

Explanation:

in an El nino event, surface temperatures of the pacific oceans are above average for at least a year. what effect, if any, would warmer temperatures have on the growth of a kelp forest ecosystem on the california coast?

Answers

El Niño is a phenomenon that impedes warm water to move westward and upwellings events. The kelp forest ecosystem is negatively affected by the rise in water temperature, lack of nutrients, and consequent effects.

-------------------------------

kelp forest

The kelp forest is a large population of brown algae that live in marine cool and relatively shallow waters rich in nutrients.

The population density is so high that they are considered to be marine forests, accomplishing many ecosystemic services, such as

absorbing CO₂, releasing a significant amount of O₂, protecting the coasts from waves erosion, and decreasing acidification.

They are shelter and source of food for many different species, becoming one of the most diverse and productive habitats.

El Niño Event

The El Nino Southern Oscillation -ENSO- phenomenon occurs due to a complex system of climatic oscillations between the ocean and the atmosphere.

This phenomenon causes significant perturbations in the usual pluvial regimens in the tropics. It provokes

dry seasons in areas where it usually rains

rainy seasons in desertic regions.

ENSO phenomenon is dominant in the global climate system.

Under El Niño conditions

A tropical and weak stream in the Pacific acquires strength while the opposite streams debilitate.

This change impedes warm water go westward, remaining on America's west coasts.

Upwelling does not occur on the America's coasts. In some regions, temperatures rise, and unusual precipitations occur in desertic or dry areas -Atacama desert-.

Other affected areas are Eastsouth Asia, Australia, and New Zealand, where there are fewer precipitations and cooler temperatures. Rainfall drops below the average, affecting crops and livestock.

Effect of warmer temperatures on the kelp forest

The kelp forest is very sensitive to temperature changes. As a fact, the forest distribution depends on temperature as a limiting factor.

El Niño event has a damaging influence on these forests, not only because they reduce the availability of nutrients but also because they produce a significant change in water temperature.

Ocean warming negatively impacts algae reproduction, growth, and survivorship.

Algae are damaged by the temperature rise to the point of being eliminated.

Associated species composing the marine ecosystem are affected too since they have no refuge, food and live in environments with a higher concentration of CO₂, lower O₂, and more acidification.

---------------------------------

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What is the atomic number of the atom shown?
A) 3
B) 13
C) 14
D) 27 ​

Answers

Answer: B - 13

Explanation: :)

Answer:

I think B

Explanation:

During transcription, a strand of mRNA is made based on the DNA template in the _______________.
help!!!!

Answers

Answer:

During transcription, a strand of mRNA is made based on the DNA template in the nucleus.

Explanation:

Hope this helps.

Which of the following is an inherited trait

A. Having freckles
C. Being a good reader
C. Having a tattoo
D. Being a good dancer

Answers

The correct answer is A

MPF stands for mitotic promoting factor and this is a[n)...

A. proto-oncogene
B. oncogene
C. cdk-cyclin complex
D. tumor suppressor gene

Answers

A. should be correct
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