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malfutka [58]
3 years ago
14

How does a placenta form?

Biology
1 answer:
LekaFEV [45]3 years ago
7 0

Answer: Placenta forms by fertilized blastocyst embeds in the uterine wall, and development of the fetus and placenta begin. ... These remodeled vessels become a source of maternal blood for the placenta. The placenta develops to bring oxygen and nutrients to the fetus and to move harmful waste and nutrients away.

Explanation: I looked it up on google.

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Biological muscle cells can be thought of as nanomotors that use the chemical energy of ATP to produce mechanical work. Measurem
bearhunter [10]

Answer:

The answer is 6.4 × 10^{-20} Joules

Explanation:

This question wants to effectively test your knowledge of the names of the negative powers of 10, so first of all, before calculating, let me explain what each of the symbols in the units given in the question means:

Force = 8.0 pN = 8.0 × 10^{-12} N

displacement = 8.0 nm = 8.0 × 10^{-9} N

Now let us calculate the work.

work = Force × Displacement

work = 8.0 × 10^{-12}  × 8.0 × 10^{-9} = 64 × 10^{-21}

= 6.4 × 10^{20} Joules (in standard form)

7 0
3 years ago
Which phrase describes a density-independent limiting factor that can affect
Alenkasestr [34]

The phrase dune erosion by ocean water along a shoreline best describes a density-independent limiting factor that can affect ecosystem stability (Option B).

<h3>What is a density-independent limiting factor?</h3>

A density-independent limiting factor can be defined as any factor in a given ecosystem that may alter the homeostasis of the population that lives in a given geographic area.

These factors (density-independent limiting factors) are generally abiotic factors such as hurricanes, extreme temperature conditions, the presence of contaminants in the air that hamper life in a given area, etc.

Conversely, density-dependent limiting factors are biotic factors such as competitive species that alter the development of another population.

Therefore, with this data, we can see that a density-independent limiting factor is any abiotic condition that may alter the life of a population in a give geographic area and thus alter the homeostasis of the whole ecosystem.

Learn more about density-independent limiting factors here:

brainly.com/question/20263955

#SPJ1

7 0
1 year ago
Read 2 more answers
If you were a doctor, and a lab technician told you that the results of a patient’s lab results were Gram positive, what antibio
klemol [59]
Oxazolidinones, Ansamycins, and Tetracyclines

These class of antibiotics are mean't to disrupt bacteria that are gram positive. 
7 0
3 years ago
Which is an example of a root?
Olegator [25]

Explanation:

Here are more examples of roots, their meanings, and other words that are formed by adding prefixes and/or suffixes to these language building blocks: Ambul: to move or walk (amble, ambulance, ambulate) Cardio: heart (cardiovascular, electrocardiogram, cardiology) Cede: to go or yield (intercede, recede, concede)

I hope it will help you....

4 0
3 years ago
If you want your crops to grow larger than they normally would,you may want to try adding
enot [183]
You may want to try adding fertilizer
7 0
3 years ago
Read 2 more answers
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