These structures contract to close a bivalve and keep its soft body safe.

Answers

Answer 1

Answer:

teeth and sockets or (dentition)

Explanation:

Answer 2

Answer:

Adductor muscles


Related Questions

Rock debris from space called ____enter Earth and are called ___ If they survive this fall and land on Earth, they are called ___

Answers

Answer: Meteorite, meteors, meteorioids.

Explanation:

How can humans look for evidence when it comes to farming hurting the environment

Answers

Answer:

foot tracks feces and other things animals leave around

Describe the purpose of cell differentiation in embryonic development.

Answers

Answer:

The differentiation of cells during embryogenesis is the key to cell, tissue, organ, and organism identity. Once an egg is fertilized by a sperm, a zygote is formed. The zygote divides into multiple cells in a process known as cleavage, triggering the beginning of embryonic differentiation

Explanation:

Why is pluto a dwarf planet

Answers

Answer: Not Copy RIght

Explanation:

Pluto is considered a dwarf planet because it does not pass around its orbit. It orbits  a disc-shaped zone beyond the orbit of Neptune called the Kuiper Belt, a distant region occupied by frozen corpses left over from the formation of the solar system.

Answer:

This is because Pluto doesn't orbit around the sun

Population genetics is the field of biology that studies the diversity of populations at the level of the.

Answers

Answer:

the field of biology that studies the diversity of populations t the level of the gene. the frequencies of on allele (p) and the frequencies of another allele (q) in a a population all add up to 1.

Population genetics is the field of biology that studies the diversity of populations at the level of the genes, as it explains the genetic variation and their distribution among different individuals in the population.

What is the significance of population genetics?

Generally, it has applications in conservation biology, medicine, and other fields of biology and helps to understand the genetic variation within and among populations and explain the evolution of organisms and how they adapt to different environments. It also explains the variation within endangered species and the genetic factors that contribute to disease susceptibility.

Hence, population genetics is the field of biology that studies the diversity of populations at the level of the genes, as it explains the genetic variation and their distribution among different individuals in the population.

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An oak tree provides food for many animals. The oak tree is found at which level of the energy pyramid?


A) 2

B) 4

C) 1

D) 3

Answers

Answer:

c.

Explanation:


What process do scientists think explains the evolution of mitochondria and chloroplasts from bacteria

Answers

Scientists put their conclusions into this by creating th Endosymbiotic theory. The endosymbiotic theory describes how mitochondria and chloroplasts (cell organelles) came to exist in eukaryotic organisms. The endosymbiotic theory explains the evolution of mitochondria and chloroplasts. Before mitochondria and chloroplasts were organelles in a cell, they were free prokaryotic cells that were absorbed by eukaryotic cells.

The mitochondrion was originally a prokaryotic cell that could undergo aerobic respiration. After being absorbed by a eukaryotic cell, it developed a symbiotic relationship with its host cell.

The chloroplast was originally a prokaryotic cell that could undergo photosynthesis (eg. cyanobacteria). Like the mitochondria, the photosynthesizing bacteria became dependent on the host cell after being engulfed.

There is much evidence to support the endosymbiotic theory.

Both prokaryotes and chloroplasts/mitochondria have circular DNABoth have their own ribosomesBoth divide through binary fission (splitting into two)Both have their own cell membranes

If cell A has 46 chromosomes, how many chromosomes will most likely be found in each cell of stage G

Answers

Answer:

9+10=21 because yes

Which of these changes is a possible negative consequence of farmers
allowing livestock to
overgraze a pasture?
O A. Abundance of clean air
O B. Deforestation
• C. Desertification
• D. Shortage of freshwater

Answers

Answer:

C

Explanation:

The overgrazing causes dry land which is arid

what are the similarities and differences between
green, brown and red algae?

Answers

Answer:

The main difference between red brown and green algae is that red algae contain chlorophyll a, chlorophyll d, and phycoerythrin, while brown algae contain chlorophyll a, chlorophyll c, and fucoxanthin and green algae contain chlorophyll a, chlorophyll b, and xanthophylls.

could anyone help me pls would appreciate it​

Answers

Answer:

I'm sure it's none of the above. The planting method where seeds are placed on top of a peak is called Hand Sowing.

Why is the rainfall pattern different on the Mountains of Kohala and Mauna Kea?

Answers

the rainfall pattern is different on the mountains of kohala and mauna kea because of the difference of ranges

The Mountains of Kohala and Mauna Kea are located on the Big Island of Hawaii and have different rainfall patterns due to their geographic location and topography.

Where is the location of Mauna Kea?

Kohala is located on the northern part of the island and is the oldest volcano in the Big Island, shielded from the prevailing trade winds by the taller volcanoes of Mauna Kea and Mauna Loa.

The moisture carried by the trade winds falls on the eastern side, and much less falls on the western side. Kohala, being located on the leeward side, receives less rainfall and is drier than the windward side.

Mauna Kea is located to the south of Kohala. It is also located on the windward side of the island. Therefore, it receives more rainfall due to the moisture carried by the trade winds. As the air rises over the mountain, it results in more precipitation on the windward side.

Therefore, the rainfall pattern is different on the Mountains of Kohala and Mauna Kea due to their location relative to the trade winds and the topography of the island.

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Which letter on the map represents the location where the most violent hurricanes will form? Explain your choice.

Answers

Answer:

C

Explanation:

Farmers who use genetic engineering to grow pesticide-resistant crops: a. waste irrigation water from runoff b. need to frequently till the soil to reduce weed growth c. reduce the use of petroleum and energy d. contribute to soil depletion e. decrease the nutrient content of foods

Answers

Farmers who use genetic engineering to grow pesticide-resistant crops  contribute to soil depletion. Soil pollution is driven by many elements , with some naturally-occurring, while human action cause others.

What is causing soil depletion?

Soil pollution is driven by many elements , with some naturally-occurring, while human action cause others.

The ultimate causes of soil pollution are wind and water erosion, deforestation, and urbanization.

Thus, option "D" is correct, contribute to soil depletion.

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What cell structure makes it possible for the internal environment of a cell to differ from the external

Answers

Answer:

The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment.

Explanation:

hope this helps

scar taking over and the hyenas
In an attempt to explain the Circle of Life, Mufasa says to Simba; "when we die our bodies
become the grass......the antelope eats the grass......"
How is this possible? Describe the process that Mufasa is referring to in detail.
Specifically explain what organisms play a role in this process.

Answers

Answer:

Below

Explanation:

He is referring to cycles like the nitrogen and carbon cycle. When an animal dies, its bodies "goes into the grown" in the sense that it slowly gets eaten by decomposures like worms and bacteria which breakdown the body and put nutirents into the soil which is then able to be used a fertilizer to grow new plants like the grass

In what part of the renal tubule does most reabsorption of substances occur?.

Answers

Answer:

The proximal convoluted tubule.

Explanation:

Which form of Vitamin A is involved in the growth and differentiation of epithelial cells throughout the body

Answers

Answer:

It is an essential vitamin for vertebrates, including humans. Vitamin A (retinol) and its metabolites serve as essential molecules in vision and influence gene expression in various types of cells, particularly epithelial cells.

Explanation:

Humans increase carbon dioxide (CO,) in the atmosphere, and contribute to the carbon eycle by
A. combustion from driving cars.
B) planting trees to improve photosynthesis.
C. conserving energy with alternative energies.
D. using more solar power electricity.

Answers

I think it's { A.) Combustion from driving cars} But if I am wrong I am sorry. Good luck!

During LTP, _____ enters postsynaptic NMDA receptors to begin a chain of events that leads to an increase in the number of postsynaptic AMPA receptors.

Answers

During LTP, calcium enters postsynaptic NMDA receptors which leads to an increase in the number of postsynaptic AMPA receptors.

What is LTP?

Thisius known as Long-term potentiation and is the process which involving persistent strengthening of synapses.

It is activated by calcium ions and helps to produce an increase in signal transmission between neurons.

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Which of the following is NOT a reactant
required to begin cellular respiration?
O ADP
O Glucose
O Oxygen
O Carbon dioxide

Answers

Answer:

ADP is not a reactant required to begin cellular respiration

glenoid cavity and acetabulum​

Answers

Answer:

The glenoid cavity is a structural feature on the scapula bone (also known as the shoulder blade or shoulder bone)and acetabulum is the socketof the hip bone,into which the head of the femur fits..

Explanation:

please mark as brainlest as it would be useful for you

what is a Cell??
please help

Answers

Answer:

A cell is the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. :) hope that helps!

Answer:

a cell are small things that are all around us, basically everything is made up of cells. cells are made of of one or more atoms/ molecules

What is the difference between a mendelian trait and a polygenic trait?.

Answers

Answer:

Polygenic traits, as the name suggests, are influenced by multiple genes. Mendelian traits are shaped by a single gene.

Explanation:

hope this helps

How does muscle shortening and lengthening affect the bones of the body?.

Answers

Answer:

It causes bones to move

Explanation:

i took the test

Answer:

It causes the bone to move. Hope this helps :)

Explanation:

Tsunamis are so destructive because of their ___ and ___.

size, speed

density, size

speed, shape

Answers

Answer:

A. Size and Speed

Explanation:

:)

Size, speed hope this is right

When you places the primase and DNA polymerase on the bottom strand, what type of fragments were they connecting?





Okazaki

Random

Ligase

RNA

Answers

Answer:

Okazaki

Explanation:

Visceral reflex arcs differ from somatic in that ________. visceral arcs involve two motor neurons visceral arcs contain two sensory neurons visceral arcs do not use integration centers somatic arcs contain one additional component that visceral arcs do not possess

Answers

Visceral reflex arcs differ from somatic in that : ( A )  Visceral arcs involve two motor neurons

Visceral reflex arcs

Visceral reflex arc is the reflex arc in the autonomic nervous system that produces non-skeletal muscular response in certain internal organs ( heart and blood vessels ). While somatic reflex arc is a neutral pathway which occurs from the sensing to response of stimulus.

Hence we can conclude that Visceral reflex arcs differ from somatic in that : ( A )  Visceral arcs involve two motor neurons.

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whats a testable question

Answers

Answer:

A testable question is one that can be answered by designing and conducting an experiment.

Explanation:

Testable questions are always about changing one thing to see what the effect is on another thing.

Hope this helped!!

Ability would provide the octopus an advantage in its environment

Answers

Answer:

It has the ability to change its color and texture to blend into its environment

Explanation:

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