BIOLOGY HIGH SCHOOL

The spheres that only earth has are a _____.A.) hydrosphere and lithosphere
B.)hydrosphere and atmosphere
C.)hydrosphere and biosphere
D.)hydrosphere and cryosphere

Answers

Answer 1
Answer:

Answer:

The correct answer is option C, hydrosphere and biosphere

Explanation:

It is the planet earth that consists of hydrosphere (water ) and biosphere (living things) that are distinctive of other planets. Most of the planets have  atmosphere but they are not of the same quality as that of planet earth that could support life. Also some planets have frozen water (cryosphere) beneath their surface crust such as moon , venus etc. and lithosphere is present in all the planets with distinctive features and characteristics from each other.

Answer 2
Answer:

Actually it’s C.ALL planets have a atmosphere but it’s toxic. We have a BIOSPHERE that’s what makes things LIVING.

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"Over the years, the forest cover in a particular ecosystem was reduced from about 50% to 20%. What would be the MOST LIKELY effect of this?A) The loss of moisture from the soil would be reduced. Eliminate B) Herbivores would be forced to change into carnivores. C) The flow of energy in the ecosystem would be affected. D) The exchange of carbon dioxide in the ecosystem would increase"
Which animal has tracheae but no lungs for respiration? A. cardinal B. grasshopper C. toad D. tuna

Which part of the amniotic egg stores the waste products produced by the embryo? A. Chorion B. Amnion C. Allantois D. Yolk sac

Answers

C. Allantois stores waste products produced by an embryo

the answer is C. ALLANTOIS

The human body contains many different types of glands; glands that secrete digestive enzymes, mucus, and sweat. These secretions are modified, sorted, and packaged for later release from gland cells.What cellular organelle is responsible for modifying, sorting, and packaging proteins and lipids?
A) ribosomes
B) Golgi bodies
C) mitochondria
D) endoplasmic reticulum

Answers

Answer:

The correct answer would be B) Golgi bodies

Golgi body is a cell organelle made up of vesicles and folded membranes.

It is mainly associated with the storage, modification, and packaging of macromolecules such as proteins and fats.

Macromolecules with the help of vesicles are transported from the endoplasmic reticulum to cis-Golgi bodies.  

They are then modified in the folded membranes of the Golgi.

Post-modification they are transported to the different parts of the cell with the help of vesicles.
Golgi bodies are responsible for modifying, sorting and packaging proteins and lipids.

Describe how competition and limited resources aided speciation in the Galapagos Island finches.

Answers

Answer:

It can be best explained with the help of Gause's law of competitive exclusion.

It states that no two species can coexist stably which compete for exact same resources.  

In such conditions, the species which is inferior to other in terms of adaptations either extinct or evolve towards a different ecological niche.

For example, Galapagos island finches evolved with different shapes and sizes of beaks as an adaptation towards limited resources available such as different types of seeds or food.
Competition killed off all the organisms without traits that were benefitial to them. The organisms in the Galapogos Islands, such as the finches, made adaptions to settle in their new environment.

Determine if the following are autotrophs or heterotrophs: (a) a giant redwood tree, (b) a spider, (c) a rose bush,(d) a mushroom, (e) a blue whale.

Answers

The options in the question contain both autotrophs and heterotrophs.
(a) A giant redwood tree = Autotroph
(b) A spider = Heterotroph
(c) A rose bush = Autotroph
(d) A mushroom = Heterotroph
(e) A blue whale = Heterotroph
Autrophs are the organisms that have the capacity to form their own food from inorganic substances like the carbon dioxide.
Heterotrophs are the organisms that cannot produce their own food but depends on other animals or plants for their nutritional needs.

The uterus connects the mother and the developing fetus. is it true or false

Answers

Answer:

false

Explanation:

In a chemical reaction, water decomposes to form hydrogen and oxygen. What is the correct term for the water? A. an element B. an atom C. a product D. a reactant

Answers

2 H_2O -->2 H_2 + O_2
D. reactant, because H₂O is a product and O₂ , H₂ are substrates.
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