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3 years ago

Which statements explain the gas exchange that happens at the alveoli? Check all that apply.

Biology

1 answer:

Arturiano [62]3 years ago

8 0

Answer: B, C, E

Explanation:

We breathe in oxygen, which travels to the alveoli in our lungs. The alveoli "gives" oxygen to the capillaries, which carry blood. The capillaries "give" its carbon dioxide (which is what oxygen becomes when used by our body) to the alveoli. The carbon dioxide travel back out when we exhale. Although, the air we breathe out has some oxygen content.

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For what purpose can genetic engineering be used?

Vikentia [17]

Answer:

Genetic engineering has been applied in numerous fields including research, medicine, industrial biotechnology and agriculture. In research GMOs are used to study gene function and expression through loss of function, gain of function, tracking and expression experiments.

Explanation:

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3 years ago

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Ecology is best defined asâ€¦

attashe74 [19]

Answer:

A) The scientific study of the distribution and abundance of organisms and their interactions with the environment.

Explanation:

Ecology is the part of biology that is concerned with the study of the relationships established between living beings and theirs with the environment in which they live. It is a term derived from the Greek that was formed from the junctions of the words "oikos" and "logos", which mean, respectively, home and study. Thus, the term Ecology refers to the study of the “home” of every organism on the planet.

The term Ecology was first used in 1866 by a German zoologist named Ernst Haeckel, in a work called "Generelle Morphologie der Organismen". In this work, the author defined Ecology as "the scientific study of the interactions between organisms and their environment."

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4 years ago

In man, assume that spotted skin (S) is dominant over non-spotted skin (s) and that wooly hair (W) is dominant over non-wooly ha

Brut [27]

Answer:

Total four genotypes and its frequency

SsWw – 4/16

ssWw- 4/16

Ssww - 4/16

ssww - 4/16

Phenotype –

SsWw – Heterozygous Spotted skin and heterozygous wooled hair

ssWw - Homozygous non-spotted skin and heterozygous wooled hair

Ssww - Heterozygous Spotted skin and Homozygous non -wooled hair

ssww - Homozygous non-spotted skin and Homozygous non -wooled hair

Explanation:

Given -

Allele for spotted skin is "S"

Allele for non-spotted skin is "s"

Allele for Wooly hair is "W"

Allele for non-wooly hair is "w"

Allele "S" is dominant over "s"

And Allele "W" is dominant over "w"

Cross is carried out between heterozygous spotted, non-wooly man and heterozygous wooly-haired, non-spotted woman

Genotype of heterozygous spotted, non-wooly man - Ssww

Genotype of heterozygous wooly-haired, non-spotted woman - ssWw

Ssww * ssWw

Sw Sw sw sw

sW SsWw SsWw ssWw ssWw

sw Ssww Ssww ssww ssww

sW SsWw SsWw ssWw ssWw

sw Ssww Ssww ssww ssww

Total four genotypes and its frequency

SsWw – 4/16

ssWw- 4/16

Ssww - 4/16

ssww - 4/16

Phenotype –

SsWw – Heterozygous Spotted skin and heterozygous wooled hair

ssWw - Homozygous non-spotted skin and heterozygous wooled hair

Ssww - Heterozygous Spotted skin and Homozygous non -wooled hair

ssww - Homozygous non-spotted skin and Homozygous non -wooled hair

8 0

4 years ago

The planets in our solar system move around the Sun because of

Stella [2.4K]

The answer is : C. Gravity

The Gravitional forces that the stars and planet have are different from one another. The difference in gravities All the stars and planets in our solar system create an effect in which the stars and planets are pulling each other according the force of their gravity, which create our current orbits in the syste

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4 years ago

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The main sugar that is used as a reactant in cellular respiration is called blank

laila [671]

I think it’s glucose

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3 years ago

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