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IrinaK [193]
3 years ago
10

What is a characteristic of a stable environment?

Biology
2 answers:
Darya [45]3 years ago
6 0
- Has more consumers than producers.
- Organisms who adapt to the environment.
- Has competition.
- Has mutualism
- Has parasitism
- Has commensalism.
<span />
zavuch27 [327]3 years ago
3 0
1 It usually contains only one type of producer.
2 It usually contains a great diversity of species.
3 It contains simple food chains that have more consumers than producers.
<span>4 It contains complex food webs that have more heterotrophs than autotrophs.</span>
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Angiosperms are thought to have originated in which period?.
Nuetrik [128]

Answer:

Angiosperms evolved during the late Cretaceous Period, about 125-100 million years ago.

hope it helps.

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2 years ago
Phenylketonuria (pku) is a disease that results from a recessive gene. Two normal parents produce a child with pku.(i) what is t
larisa86 [58]

1.What is the probability that a sperm from the father will contain the PKU allele?

Probability = ½

2.What is the probability that an egg from the mother will contain the PKU allele?

Probability = ½

3.What is the probability that their next child will have PKU?

Probability = ¼ (because each parent has ½ chance  ½ X ½ = ¼)

4.What is the probability that their next child will be heterozygous for the PKU gene?

Probability = ½ (because each parent has ½ chance of donating the ‘P’ allele and ½ chance of donating the ‘p’ allele  (½ x ½) + (½ x ½) = ½

4 0
3 years ago
Diet and stress are mostly examples of which type of factors?
shutvik [7]

Answer:

May be Nutritional but no sure

6 0
3 years ago
Read 2 more answers
This subcellular structure functions to modify gene expression products before they are shuttled out of the cell via exocytosis.
Over [174]

Answer:

The correct answer will be- Golgi apparatus

Explanation:

The proteins are synthesized in the ribosomes whether they are attached to the endoplasmic reticulum or free. These synthesized proteins enter the lumen of the endoplasmic reticulum where they get packaged to go to Golgi apparatus.

The Golgi apparatus is the site of post-translational modification of the secreted proteins like ubiquitination, acetylation, phosphorylation and many others.

Thus, the Golgi apparatus is the correct answer.

5 0
2 years ago
miRNAs can control gene expression by what action?A. degrading proteins as soon as they are formedB. inhibiting the catalytic ac
levacccp [35]

Answer:

C) binding to mRNAs and degrading them or blocking their translation

Explanation:

<u>miRNAs:</u>

miRNAs is the abbreviation of MicroRNAs. These are the small noncoding RNAs of ∼22 nucleotides which can not code for peptides. miRNAs are responsible for gene expression regulation at the level of post transcription. They can do so by forming complementary base pairing with target mRNA and inhibiting their translation.

They silenced mRNA by the following processes:

(1) Cleavage of the mRNA strand into pieces,

(2) stopping mRNA from translation into proteins by ribosomes.

(3) Shortening of mRNA poly(A) tail and destabilizing it.

5 0
3 years ago
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