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Ipatiy [6.2K]
3 years ago
5

A biologist is studying a structure that is made up of two layers of phospholipids. What is she most likely studying?

Biology
2 answers:
andriy [413]3 years ago
4 0

Answer:

The correct answer is the option: cell membranes.

Explanation:

Hello! Let's solve this!

The researcher is studying a phospholipid bilayer, the function is to allow some substances to enter and others not to the cell. This phospholipid bilayer is the cell membrane. It has a hydrophilic part and a hydrophobic part.

We conclude that the correct answer is the option: cell membranes.

Alisiya [41]3 years ago
3 0
She is studying CELL MEMBRANES which consist of a lipid bilayer and may consist of a third outer layer of cell markers in the form of carbohydrate chains that attach to protein to form glycoprotein or attach to the lipid to form glycolipid.
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In your own words, how would you describe Heredity in one sentence?
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Answer: The passing on of traits and physical features from parents to children.

Explanation:

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Which scenario would cause a covalent bond to form?
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Answer: A) Two atoms share electrons so they can fill their outer shells

Explanation: A covalent bond is a type of bond formed by sharing equal number of electrons between two non-metal atoms so that both of them can attain a stable octet or duplet structure of noble gases.

In covalent bonding, there is no loss or gain of electrons between atoms. For example, the formation of chlorine molecule, chlorine atom has seven electrons in its outermost shell, remaining one electron to attain an octet structure of noble gases. Two chlorine atoms share one pair of electron, each chlorine atom donating one electron to form a pair so that each atom in the chlorine molecule attains an octet structure..

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3 years ago
Describe why biodiversity increased with the introduction of sea otters in California over the last fifty years
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Sea otters affected biodiversity because they control the populations of sea urchins, which endanger kelp forests. Kelp forests are important because they convert sunlight to living material, and they also provide food and habitat to sea creatures. Kelp is important in sustaining the diversity of ecosystems. Additionally, sea otters may also be accountable for the large size of abalones in California.

4 0
3 years ago
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A snapping turtle has 52 chromosomes which statement correctly compares the number of chromosomes in a body so with that in a se
dalvyx [7]

Answer:

The question lacks options, the options are:

A). the body cell has 2n; the sex cell has 1n.

B). the body cell has 26; the sex cell has two.

C). the body cell has 1n; the sex cell has 2n.

D). the body cell has 24; the sex cell has 26

The answer is A

Explanation:

According to the question, the snapping turtle possesses 52 chromosomes in its cell. This means that the chromosomal number of its body cell is 52. However, the turtle, which reproduces sexually will produce gametes or sex cells via meiosis. Meiosis is the kind of cell division that results in daughter cells (gametes) that have a reduced number of chromosomes (by half).

Based on this, the diploid cells (2n) of the turtle with chromosome number 52 will undergo meiotic division to produce haploid gametes or sex cells (n) with chromosome number 26.

N.B: Diploid (2n) means two complete sets of chromosomes while haploid (1n) means one complete set of chromosome.

The body cell of the turtle contains two set of chromosomes received from each parent, hence, making it Diploid (2n). However, meiosis will reduce the chromosome number to one set in each gamete i.e. haploid (n).

3 0
3 years ago
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Punnet squares help Fill in the Punnett square for breeding a female chocolate lab (bbEE) with a male black lab (BbEE). bE bE bE
IrinaVladis [17]

Answer:

See the answer below

Explanation:

First, we need to identify the gametes that would be produced by each gene.

bbEE will produce bE, bE, bE, bE.

BbEE will produce BE, BE, bE, bE.

<em>These gametes will then be aligned at the horizontal and vertical side of the Punnet's square to give the genotype of the offspring as shown in the attached image.</em>

<em />

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3 years ago
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