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xxMikexx [17]
2 years ago
7

What is active transport

Biology
2 answers:
Alex73 [517]2 years ago
4 0

Answer:

Explanation:

ions and molecules moving across a cell membrane into a region of higher concentration that are helped by enzymes and requiring energy.

aleksley [76]2 years ago
3 0

Answer:

The movement of ions or molecules across a cell membrane into a region of higher concentration

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Draw three different food chains, from this food web, that contain an aphid.
serg [7]

The food chain that would include an aphid include:

  • Plant ---> Aphid ----> Birds
  • Plant ---> Aphid ----> Spiders
  • Plant ---> Aphid ----> Bat

<h3>What is a food chain?</h3>

A food chain is a chart that shows how food is transferred from producers to consumers.

Producers are plants as they are responsible for producing food from inorganic materials using the Sun's energy.

Consumers depend on plants and other organisms.

The food chain that would include an aphid include:

  • Plant ---> Aphid ----> Birds
  • Plant ---> Aphid ----> Spiders
  • Plant ---> Aphid ----> Bat

Learn more about food chain at: brainly.com/question/19066362

5 0
2 years ago
Oxygen is bonded to and transported by (choose all that are correct):
kobusy [5.1K]
The oxygen is bonded and transported by the hemoglobin that is an iron bearing protein
3 0
2 years ago
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Susan sat out in the sun watching a baseball game. She developed small blisters on her unprotected shoulders and neck. What type
Simora [160]

Second-degree burn is the type of burn represented by the formation of the blisters.

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8 0
3 years ago
Which sequence correctly depicts the development of offspring?
JulijaS [17]

Answer:

The correct answer would be zygote...blastocyst...embryo...fetus.

The fertilization of sperm and egg results in the formation of zygote. It receives genetic material from a male as well as a female parent.

It divides with the help of mitotic divisions and results in the formation of 2, 4, 8, and 16 celled stages.  

It results in the formation of the hollow spherical ball of cells termed as a blastocyst.  The cells are distributed to form the outer layer termed trophoblast and inner cell mass which gives rise to the embryo.

Trophoblast help in the implantation of the blastocyst into the uterine wall.

The cells of the embryo undergo organogenesis during different organs such as heart, brain, lungs et cetera are formed.

In humans, almost 9 weeks after the fertilization the developing embryo is considered a fetus.  

The fetus development continues until birth.

7 0
3 years ago
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in a 3-point cross, crossovers that occur during the formation of which gametes can be scored using the phenotype of f2 progeny?
JulsSmile [24]

In gametes generated by F1 tri-hybrids and gametes produced by parents from true-breeding populations.

When non-sister chromatids of homologous chromosomes exchange genetic material during meiosis, novel allelic combinations are created in the daughter cells. The locations of three genes in the genome of an organism are identified using a three-point cross. A homozygous recessive individual is crossed with a person who is heterozygous for three mutations, and the progeny's phenotypes are graded. When F1 progeny are self-pollinated, a 3:1 ratio of F2 progeny are created.

To konw more about homologous chromosomes please click on the link brainly.com/question/27258467

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