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4 years ago

HELP PLEASE ASAP !! BRAINLIEST WILL BE GIVEN!!!!

1 answer:

4 0

First thing you need to do to answer this question, is to observe it carefully. The question asks for the most "accurate", not the "correct" answer. That's . because in nature and in biology, there are always some exceptions.

All protists are unicellular and microscopic in nature - this is not that accurate, because there are some very noticeable exceptions.

They have organelles, so protists are eukaryotic in nature - this is correct, since protists are indeed eukaryotic.

All protists make their own energy through photosynthesis - the accuracy of this statement is 0, since not all protists make their own energy that way. Metabolism-wise, protists can be photoautotrophs or chemoheterotrophs to be accurate.

Hope it helped,

BioTeacher101

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A neurotransmitter may have an excitatory or an inhibitory effect on the postsynaptic cell, depending on __________.

Otrada [13]

A neurotransmitter can have an excitatory or inhibitory effect on the postsynaptic cell, depending on which of its receptor(s) are present on the postsynaptic (target) cell.

<h3>How do excitatory and inhibitory neurotransmitters act?</h3>

Sometimes neurotransmitters can bind to receptors and cause an electrical signal to be transmitted through the cell (excitatory). In other cases, the neurotransmitter can prevent the signal from continuing, preventing the message from being carried (inhibitory).

With this information, we can conclude that a neurotransmitter is a signaling molecule secreted by a neuron to affect another cell across a synapse.

Learn more about neurotransmitter in brainly.com/question/9725469

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2 years ago

What cells are most likely bacterial cells

spayn [35]

S and U also P, Q, T r

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3 years ago

Which of the following statements about the smooth endoplasmic reticulum is/are correct?

Vlada [557]

Answer:

Liver cells are abundant in SER.

The testes and ovaries are tissue types whose cells are abundant in SER.

Cholesterol is made in the SER.

Phospholipids are synthesized from cytosolic water soluble precursor molecules.

Explanation:

This is because liver cells contain enzymes that metabolize various lipid-soluble compounds.

This is because testes and ovaries produce steroid hormones (cholesterol is the precursor for their synthesis).

ER is the organelle at which all membrane lipids are synthesized.

Phospholipids are the main lipids that are the main structural components of the cell membrane. They are synthesized on the cytosolic side of the ER membrane, from water-soluble cytosolic precursors.

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3 years ago

If you count 52 purple rough corn kernels and 50 yellow smooth corn kernels how many people smooth corn kernels should you expec

Vitek1552 [10]

Answer:

Explanation:

In corn,

Smooth kernel (S) is dominant to rough kernel (s)

Purple kernel (P) is dominant to yellow kernel (p)

Since no information has been given about the cross here let us assume it to be a standard dihybrid cross.

The phenotypic ratio of dihybrid cross is 9:3:3:1. 9/16 will show dominant phenotype for both traits, 3/16 will show dominant phenotype for one trait, other 3/16 will show dominant phenotype for the second trait, 1/16 will have recessive phenotype for both the traits.

Here,

Purple rough (P_ss) = 52

Yellow smooth (ppS_) = 50

Both of them show dominant phenotype for one trait so they each form 3/16 of the progeny.

If the total progeny was z, 3/16*z = 50

z = (50*16)/3 = 267

Total progeny = 267 kernels

Yellow rough kernels (ppss) = (1/16*267) = 17

So approximately 17 corn kernels will be yellow and rough.

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3 years ago

Robin and Alex are discussing how water molecules form when hydrogen and oxygen atoms combine. Robin writes the following chemic

Salsk061 [2.6K]

Answer:

Option C. The number of oxygen atoms is the same before and after the reaction.

Explanation:

When hydrogen combine with oxygen, water is formed. According to law of conservation of matter, matter cannot be created nor destroyed during a chemical reaction. So according to this law, the amount of reactants is equal to the amount of product produced after a chemical reaction and the number of oxygen atoms is the same before and after the reaction.

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3 years ago

Read 2 more answers