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GREYUIT [131]
3 years ago
10

Which activity do all living things do to survive? Carry out photosynthesis Take in energy reproduce hunt for a mate

Biology
1 answer:
Juli2301 [7.4K]3 years ago
6 0
All organisms must take in energy and reproduce.

Photosynthesis is a form of taking in energy.  Hunting for a mate is a step some organisms take in the process of reproduction.
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In salt water fish, chloride cells in the gills: a. actively transport Cl- from the plasma to the ECF. b. actively transport Cl-
lord [1]

Answer:

b. actively transport Cl- from the ECF to the external environment.

Explanation:

Chloride cells are cells that are found in the gills of teleost fishes which pump large amount of sodium and chloride ions out from the extracellular fluid (ECF) into the sea or environment against a concentration gradient in marine fish.

The opposite of this process occurs in freshwater fishes where the gills of freshwater teleost fish, cause an influx of sodium and chloride ions into the fish from the environment, also against a concentration gradient.

Mechanism of action

Salt water teleost fishes take in large amounts of seawater to decrease osmotic dehydration. The excess of ions derived from seawater is thrown out of the teleost fishes through the chloride cells. These cells employs active transport on the basolateral (internal) surface to diffuse in chloride, which then is pumped out of the apical (external) surface, straight into the surrounding environment. Such mitochondria-rich cells are located in the region of the gill lamellae and filaments of teleost fish.

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3 years ago
Which of the following statements about extinction is true? Choose one: A. Recent species are disappearing so slowly that resear
JulsSmile [24]

Answer:

C. At least five mass-extinction events have occurred during the last 500 million years.

Explanation:

  • The history of mass extinct is related to the five mass extinctions that are caused over by the 350 million years n which many species have disappeared in there short geologic time.
  • A massive extinction is caused in the Permian Triassic extinction event i.e about 250 mn years ago which on an estimate has killed 90% of the species.
  • The Cretaceous–Paleogene extinction event that occurred over 66 million years ago is known to have wiped out the dinosaurs and many other species.  
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Plants with a tube system for transporting materials are ___________ plants
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Such plants are called vascular plants.
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A cell conducts endocytosis by _____.
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<span>Phagocytosis and pincytosis </span>
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Plsss helppp 200 points extra
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Answer:

fother Aa

mather aa

Explanation:

the top are not AA so that means the father is Aa because the ones below are aa

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3 years ago
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