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julia-pushkina [17]
2 years ago
15

True or False? Many marine organisms depend on estuaries during at least some point of their life.

Biology
2 answers:
sineoko [7]2 years ago
6 0

Answer:

False

Explanation:

It is false because it is not true.

Pls mark brainlist

emmasim [6.3K]2 years ago
5 0
Lol yeah it’s false
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Plants convert the sun's energy into carbohydrates via photosynthesis.
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This is the unequal distribution of ions across a cell membrane.
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Answer:

Concentration gradient

Explanation:

Concentration gradient of the ions across the membrane generates the membrane resting potential.

Concentration gradient means that there is unequal distribution of the ions on different sides of membrane. For example, the concentration of K ions is much higher within the cell then out of the cell. Opposite is with the Na ions. When ions move from the area of their higher concentration to the are with the lower concentration, we say they move down the gradient or diffuse (no energy required). On the other hand, movement of ions against their gradient means that this process requires energy and involves protein pumps.

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keikos teacher was discussing the theory of endosymbiosis. she asked keiko to mark the organelles in the diagram that most close
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4 0
3 years ago
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In the paired chromosomes, which pair might have two different chromosomes with very different genetic coding?
Black_prince [1.1K]

Answer: X and Y chromosomes.

Explanation:

<u>Chromosome that differs from other chromosomes (autosomes) in shape, size and behavior are called sex chromosome, allosome, heterochromosome or idiochromosome.</u> These sex chromosomes are typical mammalian allosomes and are sex-determining in species in which sex is determined by the XX-XY system. The presence of the XX allosomes determines female sex, while the XY allosomes are for male sex. These chromosomes contain different genes, where some are only on the X chromosome and others only on the Y chromosome, and a few are on both.

The size of the human X chromosome is 164 million bases and currently has 1,170 genes. It is composed of many repetitive DNA segments that do not code for any protein or their function is not known. Only 1.7% of the chromosome codes for functional proteins that are low in length compared to the average length of a human gene. It has a small number of genes known as housekeeping or constitutive -(responsible for the basic maintenance of the cell) and <u>most of the genes it contains are expressed in few tissues or are tissue-specific, which is especially true for those expressed in brain regions.</u> So, the X chromosome is larger and has more euchromatin regions than the <u>Y chromosome which only has genes that code for male sexual development</u>. Since females have two X chromosomes and males have only one, during development in females one of the X chromosomes is inactivated at random in each tissue to make a dosage compensation. Otherwise, females would be expressing twice as many genes as a male. And through inactivation and dosage compensation, both males and females will express the same number of genes.

3 0
3 years ago
In terms of genetic composition, how similar are offspring produced by sexual reproduction to their parents? Write in 2 to 3 sen
Mamont248 [21]

Answer:

That Is is the Word is Sex The sex is the Same only way for if u have a Baby

4 0
2 years ago
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