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krek1111 [17]
3 years ago
11

In science, a hypothesis must be a. correct. b. manipulated. c. controlled. d. testable. Please select the best answer from the

choices provided A B C D
Biology
2 answers:
erik [133]3 years ago
8 0
D. Testable, because a hypothesis is only a persons guess
Y_Kistochka [10]3 years ago
6 0

the answer is letter d

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Thermus and Deinococcus A. survive in extreme environments.B. are both thermophilic.C. are both radiation resistant.D. both serv
attashe74 [19]

Answer:

Option a, survive in extreme environments

Explanation:

Both Thermus and Deinococcus belong to the group of bacteria that are collectively termed as Deinococcus–Thermus group.

Deinococcus are radiation-resistant vegetative cell as they are able to resist ionising radiation. Also some species of Deinococcus are thermophile.

Thermus are thermophilic bacteria that are able to live in extreme temperature condition and thus are able to tolerate high temperature.

Hence, option A is correct.

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3 years ago
What substance would need to be added in order to reverse the reaction?
Korvikt [17]
The substance that would be added in order to reverse the reaction would be any substance that is found in the product side. Adding a substance that tends to be a product will shift the equilibrium of the system and will allow the reaction to produce the substances that is found in the reactant side.
5 0
3 years ago
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The major function of the placenta is to
beks73 [17]

Answer:

(2) exchange food, oxygen, and waste between

mother and fetus

Explanation:

In most mammals like humans, the fetus produced as a result of the fertilization of the sperm and egg, develops in the uterus or womb of the female. However, this developing fetus cannot yet fend for what it requires for survival and is still dependent on the mother e.g nutrients, oxygen etc. How do this substances get to the fetus? Here comes the role of the PLACENTA.

Placenta is an organ in the uterus that serves as a connection between the mother and the fetus in her womb. The placenta enables the mother to pass digested nutrients to the fetus and exchange gases (oxygen and Carbondioxide) between them via the umbilical cord. The placenta also enables the mother remove waste produced by the fetus into her bloodstream.

6 0
3 years ago
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Which of these is not a lipid? steroid fat polysaccharide wax phospholipid?
goldenfox [79]
<span>polysaccharide bc the rest are lipids</span>
6 0
3 years ago
What are the various tranport phenomena in living plants and animals
Masteriza [31]

Answer:

Explanation:

Transportation in plants is an interesting process. It includes the transport of all the nutrients and water to all parts of the plant for its survival. In case of plants, the biggest concern is the transport of water and it terminates at the limiting factor depending on its growth. To overcome this problem, a tree uses several processes like Translocation, Storing, Absorption and Utilization of water

Definition of Transportation in plants

Transportation is the process of transporting water, minerals and food to all parts of the plant body.

Transport in plants occurs at three levels:

The uptake and release of water and solute by individual cells.

Short distance transport of substances from one cell to another.

Long distance transport of sap within xylem and phloem.Direction of transport is an important aspect in plants. In case of rooted plants, transport in xylem of both minerals and water is unidirectional from roots to stems. In this, mineral and organic nutrients undergo multidirectional transport. It includes the organic compounds that are formed during photosynthesis are exported to all parts of the plants along with storage organs. Plant growth regulators, hormones and chemical stimuli are also transported in unidirectional or polarized manner, in very small amounts, from where they are formed to other parts

pls pls mark the brainliest

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3 years ago
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