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3 years ago

I need help with this fast plz write the meaning of the words

Biology

1 answer:

charle [14.2K]3 years ago

7 0

Answer:

Cell membrane: provides protection for a cell

cytoplasm : acts as a buffer and protects the genetic material of the cell

nuclear membrane : serves to separate the chromosomes from the rest of the cell

nucleus : The nucleus controls and regulates the activities of the cell

chromatin : They act as packaging elements for the DNA

nucleolus : function is RNA synthesis and ribosome biogenesis

Ribosome : decoding the message and the formation of peptide bonds

vacuole : vacuoles help maintain water balance

lysosome : They break down excess or worn-out cell parts

Smooth endoplasmic reticulum : Its main function is the synthesis of lipids, steroids, and carbohydrates, as well as the metabolism of exogenous substances, such as drugs or toxins

Rough endoplasmic reticulum : its function is to produce proteins for the rest of the cell to function

mitochondria : generate most of the chemical energy needed to power the cell's biochemical reactions

golgi body/ apparatus : organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell

Explanation:

i j copied and pasted from last answer

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The perimeter of a rectangle is 16 inches. The equation that represents the perimeter of the rectangle is 2 l plus 2 w equals 16

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Answer:

The perimeter of a rectangle is 16 inches

Explanation:

The equation that represents the perimeter of the rectangle is 2l + 2w = 16, where l represents the length of the rectangle and w represents the width of the rectangle.

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3 years ago

Which of the following scenarios is representative of how agricultural practices can affect the environment

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Answer:

The correct answer to the question, 'which of the following scenarios is representative of how agricultural practice can affect the environment' is A. Option A is chosen because it is the only option that refer to another environment which is different from that of the farm. When fertilizers are washed to nearby ponds as a result of erosion, it causes a lot of negative changes in the pond. For instance, the chemicals in the fertilizer can be poisonous to some of the smaller organisms in the pond, this will result in the death of these organisms. Fertilizer run off can also cause excessive growth of plants such as algae in the pond. This may block out the light necessary for the survival of the organisms in the ponds and may also reduce the amount of oxygen available to the organisms living in the pond.

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3 years ago

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What biome is Mexico City

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Tropical Deciduous Forest

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4 years ago

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In the Sierra Nevada mountains of California, there are many populations of the checkerspot butterfly, Euphydryas editha. You no

ra1l [238]

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decreases competition between members of the two different butterfly populations.

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The choice of different habitats may be beneficial for the populations of butterflies since it enables to both groups to survive and reproduce without the need to compete for limited resources (in this case, the host plants)

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4 years ago

In garden peas a pure line that is tall with purple flowers is crossed to another pure line that is short with white flowers. Th

defon

Answer:

See the explanation

Explanation:

Answer 1.

As given that in F1 all are short and white then it can be said according to Mendel's law that short and white are dominant over tall and purple.

Let S for short s for tall and W for white and w for purple allele.

So the genotype of short purple will be Ssww or SSww. So In first case Ssww self crossed then resultant offsprings will be,

................ Sw .................... sw

Sw ........ SSww ............. Ssww

sw ........ Ssww .............. ssww (tall and purple)

So from this 1/4 will be tall and purple while 3/4 will be short and purple.

In second case SSww only short purple progeny will appear.

Answer 2.

2. a) The female progeny will not show any trait because there are two X chromosome in females , so female offspring can be carrier but not show any trait in case of X- linked trait.

2. b) Half of male offsprings show trait because X is inherited from mother. So the chance of having X-linked recessive allele is 1/2.

2. c) The chance of having X linked affect allele in daughter is 1/2. So the chance of inheriting that X to son will be 1/2 so in total there is chance of 1/4 that son will be affected.

2. d) the chance of first child show this trait will be 1/4 in case of male offspring while 0 in case of female offspring.

Hope this helps!

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3 years ago